[INFO] cloning repository https://github.com/soenkehahn/tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soenkehahn/tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Ftracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Ftracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b793582ae575f144d7aab954d459664c1f558489
[INFO] checking soenkehahn/tracing against master#ab26b175979ee7b2cb3302dce204b99df96f7efb for pr-157696
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoenkehahn%2Ftracing" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/soenkehahn/tracing
[INFO] finished tweaking git repo https://github.com/soenkehahn/tracing
[INFO] tweaked toml for git repo https://github.com/soenkehahn/tracing written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/soenkehahn/tracing on toolchain ab26b175979ee7b2cb3302dce204b99df96f7efb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab26b175979ee7b2cb3302dce204b99df96f7efb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/soenkehahn/tracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab26b175979ee7b2cb3302dce204b99df96f7efb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.1.44
[INFO] [stderr]   Downloaded rand_chacha v0.1.0
[INFO] [stderr]   Downloaded tempfile v3.0.5
[INFO] [stderr]   Downloaded rand_xorshift v0.1.0
[INFO] [stderr]   Downloaded rand v0.6.1
[INFO] [stderr]   Downloaded spawn-ptrace v0.1.1
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded indextree v1.3.0
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded nix v0.8.1
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1
[INFO] running `Command { std: "docker" "start" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1" "/opt/rustwide/cargo-home/bin/cargo" "+ab26b175979ee7b2cb3302dce204b99df96f7efb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1" "/opt/rustwide/cargo-home/bin/cargo" "+ab26b175979ee7b2cb3302dce204b99df96f7efb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking indextree v1.3.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking tempfile v3.0.5
[INFO] [stderr]     Checking spawn-ptrace v0.1.1
[INFO] [stderr]     Checking tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `indextree::NodeEdge`
[INFO] [stdout]   --> src/tracetree.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use indextree::NodeEdge;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indextree::NodeEdge`
[INFO] [stdout]   --> src/tracetree.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use indextree::NodeEdge;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/tracetree.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct ProcessInfo {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 34 |     pub pid: pid_t,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ProcessInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/tracetree.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct ProcessInfo {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 34 |     pub pid: pid_t,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ProcessInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 x => panic!(format!("{:?}", x)),
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 61 -                 x => panic!(format!("{:?}", x)),
[INFO] [stdout] 61 +                 x => panic!("{:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 x => panic!(format!("{:?}", x)),
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 73 -                 x => panic!(format!("{:?}", x)),
[INFO] [stdout] 73 +                 x => panic!("{:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:83:33
[INFO] [stdout]    |
[INFO] [stdout] 83 |                     x => panic!(format!("{:?}", x)),
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 83 -                     x => panic!(format!("{:?}", x)),
[INFO] [stdout] 83 +                     x => panic!("{:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:85:29
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 x => panic!(format!("{:?}", x)),
[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 <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 85 -                 x => panic!(format!("{:?}", x)),
[INFO] [stdout] 85 +                 x => panic!("{:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.96s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0, bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1", kill_on_drop: false }`
[INFO] [stdout] fa4ed65f177666665852074f4d5acf44bd615ddaa1af296e11871e3514ba9bf1
