[INFO] fetching crate tail 0.3.0... [INFO] testing tail-0.3.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1 [INFO] extracting crate tail 0.3.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate tail 0.3.0 [INFO] finished tweaking crates.io crate tail 0.3.0 [INFO] tweaked toml for crates.io crate tail 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tail 0.3.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 7 packages to latest compatible versions [INFO] [stderr] Adding inotify v0.5.1 (available: v0.11.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6edba7eba953553c4d67d06b3c8f99a62ae10a4256204a720c9e897a1b33c01d [INFO] running `Command { std: "docker" "start" "-a" "6edba7eba953553c4d67d06b3c8f99a62ae10a4256204a720c9e897a1b33c01d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6edba7eba953553c4d67d06b3c8f99a62ae10a4256204a720c9e897a1b33c01d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6edba7eba953553c4d67d06b3c8f99a62ae10a4256204a720c9e897a1b33c01d", kill_on_drop: false }` [INFO] [stdout] 6edba7eba953553c4d67d06b3c8f99a62ae10a4256204a720c9e897a1b33c01d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de9bd6cf58aab4de194ad59fecf02ff6618bd21a57aaeb7c03eb5bb2964a1327 [INFO] running `Command { std: "docker" "start" "-a" "de9bd6cf58aab4de194ad59fecf02ff6618bd21a57aaeb7c03eb5bb2964a1327", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling unicode-width v0.2.1 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling inotify v0.5.1 [INFO] [stderr] Compiling getopts v0.2.24 [INFO] [stderr] Compiling tail v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | let mut wd = watcher.add_watch(Path::new(&file_name), WatchMask::MODIFY) [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let mut fd = File::open(&file_name) [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:64:28 [INFO] [stdout] | [INFO] [stdout] 64 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 64 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s [INFO] running `Command { std: "docker" "inspect" "de9bd6cf58aab4de194ad59fecf02ff6618bd21a57aaeb7c03eb5bb2964a1327", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de9bd6cf58aab4de194ad59fecf02ff6618bd21a57aaeb7c03eb5bb2964a1327", kill_on_drop: false }` [INFO] [stdout] de9bd6cf58aab4de194ad59fecf02ff6618bd21a57aaeb7c03eb5bb2964a1327 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9c8e7c2fb958abf6444a5e37cdbfd767a9ef8af2898ac9eb6c24366fc2bde7c [INFO] running `Command { std: "docker" "start" "-a" "e9c8e7c2fb958abf6444a5e37cdbfd767a9ef8af2898ac9eb6c24366fc2bde7c", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling tail v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:88:13 [INFO] [stdout] | [INFO] [stdout] 88 | let mut wd = watcher.add_watch(Path::new(&file_name), WatchMask::MODIFY) [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let mut fd = File::open(&file_name) [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:64:28 [INFO] [stdout] | [INFO] [stdout] 64 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 64 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `Command { std: "docker" "inspect" "e9c8e7c2fb958abf6444a5e37cdbfd767a9ef8af2898ac9eb6c24366fc2bde7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9c8e7c2fb958abf6444a5e37cdbfd767a9ef8af2898ac9eb6c24366fc2bde7c", kill_on_drop: false }` [INFO] [stdout] e9c8e7c2fb958abf6444a5e37cdbfd767a9ef8af2898ac9eb6c24366fc2bde7c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5992cb6477f29e381820af44d80b0c9ded258b2065fea9131c233cd905d87169 [INFO] running `Command { std: "docker" "start" "-a" "5992cb6477f29e381820af44d80b0c9ded258b2065fea9131c233cd905d87169", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:88:13 [INFO] [stderr] | [INFO] [stderr] 88 | let mut wd = watcher.add_watch(Path::new(&file_name), WatchMask::MODIFY) [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:90:13 [INFO] [stderr] | [INFO] [stderr] 90 | let mut fd = File::open(&file_name) [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/main.rs:64:28 [INFO] [stderr] | [INFO] [stderr] 64 | Err(f) => { panic!(f.to_string()) } [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stderr] help: add a "{}" format string to `Display` the message [INFO] [stderr] | [INFO] [stderr] 64 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stderr] | +++++ [INFO] [stderr] [INFO] [stderr] warning: `tail` (bin "tail" test) generated 3 warnings (run `cargo fix --bin "tail" --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tail-f8b8fa71a840bf93) [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tail-ba1d7dbef7868c83) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests tail [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - BackwardsReader (line 23) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - BackwardsReader (line 23) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BufWriter` [INFO] [stdout] --> src/lib.rs:24:18 [INFO] [stdout] | [INFO] [stdout] 3 | let mut writer = BufWriter::new(std::io::stdout()); [INFO] [stdout] | ^^^^^^^^^ use of undeclared type `BufWriter` [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 + use std::io::BufWriter; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BackwardsReader` [INFO] [stdout] --> src/lib.rs:25:18 [INFO] [stdout] | [INFO] [stdout] 4 | let mut reader = BackwardsReader::new(10, &mut writer); [INFO] [stdout] | ^^^^^^^^^^^^^^^ use of undeclared type `BackwardsReader` [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - BackwardsReader (line 23) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "5992cb6477f29e381820af44d80b0c9ded258b2065fea9131c233cd905d87169", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5992cb6477f29e381820af44d80b0c9ded258b2065fea9131c233cd905d87169", kill_on_drop: false }` [INFO] [stdout] 5992cb6477f29e381820af44d80b0c9ded258b2065fea9131c233cd905d87169