[INFO] fetching crate follow 0.1.5...
[INFO] testing follow-0.1.5 against 1.75.0 for beta-1.76-1
[INFO] extracting crate follow 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate follow 0.1.5 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate follow 0.1.5
[INFO] finished tweaking crates.io crate follow 0.1.5
[INFO] tweaked toml for crates.io crate follow 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded timebomb v0.1.2
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded strsim v0.6.0
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded fern v0.3.5
[INFO] [stderr]   Downloaded pulse v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdde437c91bf14d905c18973f598b119e016ff5c5e55ee650fb561584c9d6525
[INFO] running `Command { std: "docker" "start" "-a" "fdde437c91bf14d905c18973f598b119e016ff5c5e55ee650fb561584c9d6525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdde437c91bf14d905c18973f598b119e016ff5c5e55ee650fb561584c9d6525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdde437c91bf14d905c18973f598b119e016ff5c5e55ee650fb561584c9d6525", kill_on_drop: false }`
[INFO] [stdout] fdde437c91bf14d905c18973f598b119e016ff5c5e55ee650fb561584c9d6525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0523745abaf8b05000df114677f689bb4a60672e82d99a7eea6c9723f86bb7bc
[INFO] running `Command { std: "docker" "start" "-a" "0523745abaf8b05000df114677f689bb4a60672e82d99a7eea6c9723f86bb7bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling fern v0.3.5
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling follow v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/args.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 &mut buf.bytes[(..)]
[INFO] [stdout]     |                                ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -                 &mut buf.bytes[(..)]
[INFO] [stdout] 147 +                 &mut buf.bytes[..]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout]     |                                ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 return Ok((cursor..len));
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -                 return Ok((cursor..len));
[INFO] [stdout] 180 +                 return Ok(cursor..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 return Ok((0..len));
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                 return Ok((0..len));
[INFO] [stdout] 189 +                 return Ok(0..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flag_verbose` is never read
[INFO] [stdout]   --> src/args.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Args {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     arg_path: Vec<String>,
[INFO] [stdout] 20 |     flag_verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_verbose` is never used
[INFO] [stdout]   --> src/args.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Args {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "0523745abaf8b05000df114677f689bb4a60672e82d99a7eea6c9723f86bb7bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0523745abaf8b05000df114677f689bb4a60672e82d99a7eea6c9723f86bb7bc", kill_on_drop: false }`
[INFO] [stdout] 0523745abaf8b05000df114677f689bb4a60672e82d99a7eea6c9723f86bb7bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c15d0e3fbe099e28748aed90bc9256b5bb977043f3213f77ac049fee6c5c09d
[INFO] running `Command { std: "docker" "start" "-a" "2c15d0e3fbe099e28748aed90bc9256b5bb977043f3213f77ac049fee6c5c09d", kill_on_drop: false }`
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling pulse v0.5.3
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling time v0.3.31
[INFO] [stderr]    Compiling timebomb v0.1.2
[INFO] [stderr]    Compiling follow v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/args.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 &mut buf.bytes[(..)]
[INFO] [stdout]     |                                ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -                 &mut buf.bytes[(..)]
[INFO] [stdout] 147 +                 &mut buf.bytes[..]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout]     |                                ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 return Ok((cursor..len));
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -                 return Ok((cursor..len));
[INFO] [stdout] 180 +                 return Ok(cursor..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 return Ok((0..len));
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                 return Ok((0..len));
[INFO] [stdout] 189 +                 return Ok(0..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:658:46
[INFO] [stdout]     |
[INFO] [stdout] 658 |             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stdout]     |                                              ^                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 658 -             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stdout] 658 +             let content = build_sized_string(((BUFFER_SIZE as usize) * 2) - 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/worker.rs:218:28
[INFO] [stdout]     |
[INFO] [stdout] 218 |     use std::sync::atomic::ATOMIC_BOOL_INIT;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/worker.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |     static LOGGER_IS_SETUP: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 228 |     static LOGGER_IS_SETUP: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |                                          ~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/worker.rs:244:29
[INFO] [stdout]     |
[INFO] [stdout] 244 |         if !LOGGER_IS_SETUP.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flag_verbose` is never read
[INFO] [stdout]   --> src/args.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Args {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     arg_path: Vec<String>,
[INFO] [stdout] 20 |     flag_verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_verbose` is never used
[INFO] [stdout]   --> src/args.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Args {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "2c15d0e3fbe099e28748aed90bc9256b5bb977043f3213f77ac049fee6c5c09d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c15d0e3fbe099e28748aed90bc9256b5bb977043f3213f77ac049fee6c5c09d", kill_on_drop: false }`
[INFO] [stdout] 2c15d0e3fbe099e28748aed90bc9256b5bb977043f3213f77ac049fee6c5c09d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aaf90a07c716b01cb7e3fe10bf7e9c9106ab336c90b70455e24366e7719f6e2e
[INFO] running `Command { std: "docker" "start" "-a" "aaf90a07c716b01cb7e3fe10bf7e9c9106ab336c90b70455e24366e7719f6e2e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]   --> src/args.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/worker.rs:147:32
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 &mut buf.bytes[(..)]
[INFO] [stderr]     |                                ^  ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 147 -                 &mut buf.bytes[(..)]
[INFO] [stderr] 147 +                 &mut buf.bytes[..]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/worker.rs:149:32
[INFO] [stderr]     |
[INFO] [stderr] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stderr]     |                                ^                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stderr] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 return Ok((cursor..len));
[INFO] [stderr]     |                           ^           ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 -                 return Ok((cursor..len));
[INFO] [stderr] 180 +                 return Ok(cursor..len);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:189:27
[INFO] [stderr]     |
[INFO] [stderr] 189 |                 return Ok((0..len));
[INFO] [stderr]     |                           ^      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 189 -                 return Ok((0..len));
[INFO] [stderr] 189 +                 return Ok(0..len);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:658:46
[INFO] [stderr]     |
[INFO] [stderr] 658 |             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stderr]     |                                              ^                                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 658 -             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stderr] 658 +             let content = build_sized_string(((BUFFER_SIZE as usize) * 2) - 1);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:143:28
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/worker.rs:218:28
[INFO] [stderr]     |
[INFO] [stderr] 218 |     use std::sync::atomic::ATOMIC_BOOL_INIT;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/worker.rs:228:42
[INFO] [stderr]     |
[INFO] [stderr] 228 |     static LOGGER_IS_SETUP: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: replace the use of the deprecated constant
[INFO] [stderr]     |
[INFO] [stderr] 228 |     static LOGGER_IS_SETUP: AtomicBool = AtomicBool::new(false);
[INFO] [stderr]     |                                          ~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/worker.rs:244:29
[INFO] [stderr]     |
[INFO] [stderr] 244 |         if !LOGGER_IS_SETUP.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `flag_verbose` is never read
[INFO] [stderr]   --> src/args.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Args {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] 19 |     arg_path: Vec<String>,
[INFO] [stderr] 20 |     flag_verbose: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_verbose` is never used
[INFO] [stderr]   --> src/args.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl Args {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `follow` (bin "follow" test) generated 12 warnings (run `cargo fix --bin "follow" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/follow-ce45ba86b2804a68)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test worker::tests::it_reads_lines_from_file_with_contents ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_between_one_and_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_less_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_a_byte_of_text ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_equal_to_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_less_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_larger_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_less_than_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_doesnt_exist_before_worker_is_created ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_is_deleted_after_worker_runs ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_is_deleted_after_worker_is_created_but_before_it_runs ... ok
[INFO] [stdout] test worker::tests::it_continues_reading_after_truncation ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- worker::tests::it_continues_reading_after_truncation stdout ----
[INFO] [stdout] thread 'worker::tests::it_continues_reading_after_truncation' panicked at src/worker.rs:245:43:
[INFO] [stdout] log: Error(Msg("failed to init logger"), State { next_error: Some(Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })), backtrace: Some(   0: error_chain::make_backtrace
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/lib.rs:417:54
[INFO] [stdout]    1: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    2: core::option::Option<T>::or_else
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/option.rs:1511:21
[INFO] [stdout]    3: error_chain::State::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/lib.rs:518:25
[INFO] [stdout]    4: <core::result::Result<T,E> as follow::errors::ResultExt<T,E>>::chain_err::{{closure}}
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/error_chain.rs:308:33
[INFO] [stdout]    5: core::result::Result<T,E>::map_err
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:829:27
[INFO] [stdout]    6: <core::result::Result<T,E> as follow::errors::ResultExt<T,E>>::chain_err
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/error_chain.rs:307:17
[INFO] [stdout]    7: follow::setup_logging
[INFO] [stdout]              at src/main.rs:191:5
[INFO] [stdout]    8: follow::worker::tests::with_setup
[INFO] [stdout]              at src/worker.rs:245:13
[INFO] [stdout]    9: follow::worker::tests::it_continues_reading_after_truncation
[INFO] [stdout]              at src/worker.rs:388:9
[INFO] [stdout]   10: follow::worker::tests::it_continues_reading_after_truncation::{{closure}}
[INFO] [stdout]              at src/worker.rs:387:47
[INFO] [stdout]   11: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   12: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]       test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   13: test::run_test_in_process::{{closure}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]       test::run_test_in_process
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]       test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   14: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]       std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   15: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]       std::thread::Builder::spawn_unchecked_::{{closure}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]       core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   16: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]       <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]       std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   17: <unknown>
[INFO] [stdout]   18: __clone
[INFO] [stdout] ) })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55af5a89065c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55af5a89065c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55af5a89065c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55af5a89065c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55af5a8bad40 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55af5a8bad40 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55af5a88dcef - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x55af5a890444 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55af5a890444 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55af5a892107 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x55af5a891df3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55af5a744417 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x55af5a744417 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55af5a892718 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x55af5a892718 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55af5a89246e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55af5a890b26 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x55af5a8921d2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55af5a6be525 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55af5a6beab3 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x55af5a6f3900 - core::result::Result<T,E>::expect::h2fb4fed338e5e9c6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1034:23
[INFO] [stdout]   21:     0x55af5a6f9a4e - follow::worker::tests::with_setup::h00e8fe17a899d76c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:245:13
[INFO] [stdout]   22:     0x55af5a6fd0d6 - follow::worker::tests::it_continues_reading_after_truncation::h16455e4375da67ab
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:388:9
[INFO] [stdout]   23:     0x55af5a6fd0b7 - follow::worker::tests::it_continues_reading_after_truncation::{{closure}}::hfdb4b9a316516985
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:387:47
[INFO] [stdout]   24:     0x55af5a6e2af6 - core::ops::function::FnOnce::call_once::h67eb6742528813ee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55af5a749a6f - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55af5a749a6f - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   27:     0x55af5a748a85 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   28:     0x55af5a748a85 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x55af5a748a85 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   30:     0x55af5a748a85 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   31:     0x55af5a748a85 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   32:     0x55af5a748a85 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   33:     0x55af5a748a85 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   34:     0x55af5a710d46 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   35:     0x55af5a710d46 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   36:     0x55af5a715df7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   37:     0x55af5a715df7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x55af5a715df7 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   39:     0x55af5a715df7 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   40:     0x55af5a715df7 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   41:     0x55af5a715df7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   42:     0x55af5a715df7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55af5a897bb5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   44:     0x55af5a897bb5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   45:     0x55af5a897bb5 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   46:     0x7f6a2b4cbac3 - <unknown>
[INFO] [stdout]   47:     0x7f6a2b55cbf4 - __clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     worker::tests::it_continues_reading_after_truncation
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin follow`
[INFO] running `Command { std: "docker" "inspect" "aaf90a07c716b01cb7e3fe10bf7e9c9106ab336c90b70455e24366e7719f6e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf90a07c716b01cb7e3fe10bf7e9c9106ab336c90b70455e24366e7719f6e2e", kill_on_drop: false }`
[INFO] [stdout] aaf90a07c716b01cb7e3fe10bf7e9c9106ab336c90b70455e24366e7719f6e2e
[INFO] testing follow-0.1.5 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate follow 0.1.5 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate follow 0.1.5 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate follow 0.1.5
[INFO] finished tweaking crates.io crate follow 0.1.5
[INFO] tweaked toml for crates.io crate follow 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66d0705f376da7211676e23ca2a06abd0424781ad6b836a74db08e00804bd967
[INFO] running `Command { std: "docker" "start" "-a" "66d0705f376da7211676e23ca2a06abd0424781ad6b836a74db08e00804bd967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66d0705f376da7211676e23ca2a06abd0424781ad6b836a74db08e00804bd967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66d0705f376da7211676e23ca2a06abd0424781ad6b836a74db08e00804bd967", kill_on_drop: false }`
[INFO] [stdout] 66d0705f376da7211676e23ca2a06abd0424781ad6b836a74db08e00804bd967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53ab6243c0e03dff2536ba48d8574b5740e548cdcffdfc67ccb3138d4a27d6f1
[INFO] running `Command { std: "docker" "start" "-a" "53ab6243c0e03dff2536ba48d8574b5740e548cdcffdfc67ccb3138d4a27d6f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling fern v0.3.5
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling follow v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/args.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 &mut buf.bytes[(..)]
[INFO] [stdout]     |                                ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -                 &mut buf.bytes[(..)]
[INFO] [stdout] 147 +                 &mut buf.bytes[..]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout]     |                                ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 return Ok((cursor..len));
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -                 return Ok((cursor..len));
[INFO] [stdout] 180 +                 return Ok(cursor..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 return Ok((0..len));
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                 return Ok((0..len));
[INFO] [stdout] 189 +                 return Ok(0..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flag_verbose` is never read
[INFO] [stdout]   --> src/args.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Args {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     arg_path: Vec<String>,
[INFO] [stdout] 20 |     flag_verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_verbose` is never used
[INFO] [stdout]   --> src/args.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Args {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `Command { std: "docker" "inspect" "53ab6243c0e03dff2536ba48d8574b5740e548cdcffdfc67ccb3138d4a27d6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ab6243c0e03dff2536ba48d8574b5740e548cdcffdfc67ccb3138d4a27d6f1", kill_on_drop: false }`
[INFO] [stdout] 53ab6243c0e03dff2536ba48d8574b5740e548cdcffdfc67ccb3138d4a27d6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11aec4e543da2d28eaab41042b5c5782d468e9534f5c6e16b580ea2130f04871
[INFO] running `Command { std: "docker" "start" "-a" "11aec4e543da2d28eaab41042b5c5782d468e9534f5c6e16b580ea2130f04871", kill_on_drop: false }`
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling pulse v0.5.3
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling time v0.3.31
[INFO] [stderr]    Compiling timebomb v0.1.2
[INFO] [stderr]    Compiling follow v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/args.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:147:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 &mut buf.bytes[(..)]
[INFO] [stdout]     |                                ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -                 &mut buf.bytes[(..)]
[INFO] [stdout] 147 +                 &mut buf.bytes[..]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/worker.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout]     |                                ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stdout] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 return Ok((cursor..len));
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -                 return Ok((cursor..len));
[INFO] [stdout] 180 +                 return Ok(cursor..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 return Ok((0..len));
[INFO] [stdout]     |                           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                 return Ok((0..len));
[INFO] [stdout] 189 +                 return Ok(0..len);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:658:46
[INFO] [stdout]     |
[INFO] [stdout] 658 |             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stdout]     |                                              ^                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 658 -             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stdout] 658 +             let content = build_sized_string(((BUFFER_SIZE as usize) * 2) - 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/worker.rs:218:28
[INFO] [stdout]     |
[INFO] [stdout] 218 |     use std::sync::atomic::ATOMIC_BOOL_INIT;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/worker.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |     static LOGGER_IS_SETUP: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 228 |     static LOGGER_IS_SETUP: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |                                          ~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/worker.rs:244:29
[INFO] [stdout]     |
[INFO] [stdout] 244 |         if !LOGGER_IS_SETUP.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flag_verbose` is never read
[INFO] [stdout]   --> src/args.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Args {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 19 |     arg_path: Vec<String>,
[INFO] [stdout] 20 |     flag_verbose: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_verbose` is never used
[INFO] [stdout]   --> src/args.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Args {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "11aec4e543da2d28eaab41042b5c5782d468e9534f5c6e16b580ea2130f04871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11aec4e543da2d28eaab41042b5c5782d468e9534f5c6e16b580ea2130f04871", kill_on_drop: false }`
[INFO] [stdout] 11aec4e543da2d28eaab41042b5c5782d468e9534f5c6e16b580ea2130f04871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a3e8e66356955b4de3e5580c37654db460c6137f38650b582f61e64e9b673de
[INFO] running `Command { std: "docker" "start" "-a" "0a3e8e66356955b4de3e5580c37654db460c6137f38650b582f61e64e9b673de", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]   --> src/args.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[derive(Debug, RustcDecodable)]
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/worker.rs:147:32
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 &mut buf.bytes[(..)]
[INFO] [stderr]     |                                ^  ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 147 -                 &mut buf.bytes[(..)]
[INFO] [stderr] 147 +                 &mut buf.bytes[..]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/worker.rs:149:32
[INFO] [stderr]     |
[INFO] [stderr] 149 |                 &mut buf.bytes[(0..available_size)]
[INFO] [stderr]     |                                ^                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 149 -                 &mut buf.bytes[(0..available_size)]
[INFO] [stderr] 149 +                 &mut buf.bytes[0..available_size]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 return Ok((cursor..len));
[INFO] [stderr]     |                           ^           ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 -                 return Ok((cursor..len));
[INFO] [stderr] 180 +                 return Ok(cursor..len);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:189:27
[INFO] [stderr]     |
[INFO] [stderr] 189 |                 return Ok((0..len));
[INFO] [stderr]     |                           ^      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 189 -                 return Ok((0..len));
[INFO] [stderr] 189 +                 return Ok(0..len);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/worker.rs:658:46
[INFO] [stderr]     |
[INFO] [stderr] 658 |             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stderr]     |                                              ^                                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 658 -             let content = build_sized_string((((BUFFER_SIZE as usize) * 2) - 1));
[INFO] [stderr] 658 +             let content = build_sized_string(((BUFFER_SIZE as usize) * 2) - 1);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:143:28
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/worker.rs:218:28
[INFO] [stderr]     |
[INFO] [stderr] 218 |     use std::sync::atomic::ATOMIC_BOOL_INIT;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/worker.rs:228:42
[INFO] [stderr]     |
[INFO] [stderr] 228 |     static LOGGER_IS_SETUP: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: replace the use of the deprecated constant
[INFO] [stderr]     |
[INFO] [stderr] 228 |     static LOGGER_IS_SETUP: AtomicBool = AtomicBool::new(false);
[INFO] [stderr]     |                                          ~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/worker.rs:244:29
[INFO] [stderr]     |
[INFO] [stderr] 244 |         if !LOGGER_IS_SETUP.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `flag_verbose` is never read
[INFO] [stderr]   --> src/args.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Args {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] 19 |     arg_path: Vec<String>,
[INFO] [stderr] 20 |     flag_verbose: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_verbose` is never used
[INFO] [stderr]   --> src/args.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl Args {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn is_verbose(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `follow` (bin "follow" test) generated 12 warnings (run `cargo fix --bin "follow" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/follow-5a73b68919d07f39)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_less_than_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_less_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_equal_to_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_between_one_and_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_larger_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_two_buffers_in_size ... ok
[INFO] [stdout] test worker::tests::it_reads_new_text_one_byte_less_than_buffer_size ... ok
[INFO] [stdout] test worker::tests::it_reads_a_byte_of_text ... ok
[INFO] [stdout] test worker::tests::it_continues_reading_after_truncation ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_is_deleted_after_worker_runs ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_doesnt_exist_before_worker_is_created ... ok
[INFO] [stdout] test worker::tests::it_retuns_none_if_file_is_deleted_after_worker_is_created_but_before_it_runs ... ok
[INFO] [stdout] test worker::tests::it_reads_lines_from_file_with_contents ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- worker::tests::it_reads_lines_from_file_with_contents stdout ----
[INFO] [stdout] thread 'worker::tests::it_reads_lines_from_file_with_contents' panicked at src/worker.rs:245:43:
[INFO] [stdout] log: Error(Msg("failed to init logger"), State { next_error: Some(Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })), backtrace: Some(   0: error_chain::make_backtrace
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/lib.rs:417:54
[INFO] [stdout]    1: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    2: core::option::Option<T>::or_else
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/option.rs:1506:21
[INFO] [stdout]    3: error_chain::State::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/lib.rs:518:25
[INFO] [stdout]    4: <core::result::Result<T,E> as follow::errors::ResultExt<T,E>>::chain_err::{{closure}}
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/error_chain.rs:308:33
[INFO] [stdout]    5: core::result::Result<T,E>::map_err
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:829:27
[INFO] [stdout]    6: <core::result::Result<T,E> as follow::errors::ResultExt<T,E>>::chain_err
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.10.0/src/error_chain.rs:307:17
[INFO] [stdout]    7: follow::setup_logging
[INFO] [stdout]              at src/main.rs:191:5
[INFO] [stdout]    8: follow::worker::tests::with_setup
[INFO] [stdout]              at src/worker.rs:245:13
[INFO] [stdout]    9: follow::worker::tests::it_reads_lines_from_file_with_contents
[INFO] [stdout]              at src/worker.rs:255:9
[INFO] [stdout]   10: follow::worker::tests::it_reads_lines_from_file_with_contents::{{closure}}
[INFO] [stdout]              at src/worker.rs:254:48
[INFO] [stdout]   11: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   12: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]       test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   13: test::run_test_in_process::{{closure}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]       test::run_test_in_process
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]       test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   14: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]       std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   15: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]       <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]       std::thread::Builder::spawn_unchecked_::{{closure}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]       core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   16: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]       <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]       std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   17: <unknown>
[INFO] [stdout]   18: __clone
[INFO] [stdout] ) })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a10e738436 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55a10e738436 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55a10e738436 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55a10e738436 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55a10e761e20 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55a10e761e20 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55a10e735b7f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x55a10e738214 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55a10e738214 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55a10e739f87 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x55a10e739c6d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55a10e5ea867 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x55a10e5ea867 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55a10e73a5a6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x55a10e73a5a6 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55a10e73a2f2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55a10e738936 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55a10e73a050 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55a10e563525 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55a10e563ac3 - core::result::unwrap_failed::hbe14f498be1452f9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5
[INFO] [stdout]   20:     0x55a10e5880d6 - core::result::Result<T,E>::expect::h8146f2ad560572ae
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1030:23
[INFO] [stdout]   21:     0x55a10e58ec3e - follow::worker::tests::with_setup::hc13b893a16bfa7dd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:245:13
[INFO] [stdout]   22:     0x55a10e58f736 - follow::worker::tests::it_reads_lines_from_file_with_contents::hd1170d8144744b98
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:255:9
[INFO] [stdout]   23:     0x55a10e58f717 - follow::worker::tests::it_reads_lines_from_file_with_contents::{{closure}}::hb8ce9d7d8bdd058a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/worker.rs:254:48
[INFO] [stdout]   24:     0x55a10e5a0c46 - core::ops::function::FnOnce::call_once::hc61c704b41e2b6b6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55a10e5f013f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55a10e5f013f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   27:     0x55a10e5eeec1 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   28:     0x55a10e5eeec1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x55a10e5eeec1 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   30:     0x55a10e5eeec1 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   31:     0x55a10e5eeec1 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   32:     0x55a10e5eeec1 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   33:     0x55a10e5eeec1 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   34:     0x55a10e5b61f6 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   35:     0x55a10e5b61f6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   36:     0x55a10e5bb257 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   37:     0x55a10e5bb257 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x55a10e5bb257 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   39:     0x55a10e5bb257 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   40:     0x55a10e5bb257 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   41:     0x55a10e5bb257 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   42:     0x55a10e5bb257 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55a10e73fa65 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x55a10e73fa65 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   45:     0x55a10e73fa65 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   46:     0x7f5a32ec2ac3 - <unknown>
[INFO] [stdout]   47:     0x7f5a32f53bf4 - __clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     worker::tests::it_reads_lines_from_file_with_contents
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin follow`
[INFO] running `Command { std: "docker" "inspect" "0a3e8e66356955b4de3e5580c37654db460c6137f38650b582f61e64e9b673de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a3e8e66356955b4de3e5580c37654db460c6137f38650b582f61e64e9b673de", kill_on_drop: false }`
[INFO] [stdout] 0a3e8e66356955b4de3e5580c37654db460c6137f38650b582f61e64e9b673de
