[INFO] cloning repository https://github.com/leishiao/rust-logger-performace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leishiao/rust-logger-performace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleishiao%2Frust-logger-performace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleishiao%2Frust-logger-performace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3f92f0bd8cff354b596a9385b5cec71260a92e4
[INFO] testing leishiao/rust-logger-performace against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleishiao%2Frust-logger-performace" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leishiao/rust-logger-performace on toolchain 595316b4006932405a63862d8fe65f71a6356293
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leishiao/rust-logger-performace
[INFO] finished tweaking git repo https://github.com/leishiao/rust-logger-performace
[INFO] tweaked toml for git repo https://github.com/leishiao/rust-logger-performace written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leishiao/rust-logger-performace 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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c3d74075bdca0d9f352b6573396d58e4d11ce2403fa0bb06b2e8dd1bc45e1cf3
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[INFO] [stdout] c3d74075bdca0d9f352b6573396d58e4d11ce2403fa0bb06b2e8dd1bc45e1cf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 314006708d546b48fe8c5fde04eb28227a7f1b2e9f19d9886e3215e065087f00
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[INFO] [stderr]    Compiling tracing v0.1.26
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[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling log4rs v1.0.0
[INFO] [stderr]    Compiling tracing-appender v0.1.2
[INFO] [stderr]    Compiling perf-log v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log4rs::encode::writer`
[INFO] [stdout]  --> src/tracing_impl/term/tracing_term.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log4rs::encode::writer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GLOBAL` is never used
[INFO] [stdout]  --> src/slog_impl/term/slog_term.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | static mut GLOBAL: Option<slog_scope::GlobalLoggerGuard> = None;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]   --> src/slog_impl/term/slog_term.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn init() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[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" "314006708d546b48fe8c5fde04eb28227a7f1b2e9f19d9886e3215e065087f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314006708d546b48fe8c5fde04eb28227a7f1b2e9f19d9886e3215e065087f00", kill_on_drop: false }`
[INFO] [stdout] 314006708d546b48fe8c5fde04eb28227a7f1b2e9f19d9886e3215e065087f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7f2e5757b4d2ca5d22b47cdb9d7fddab7ebf0c92628f61aae80843d8cbbac27
[INFO] running `Command { std: "docker" "start" "-a" "e7f2e5757b4d2ca5d22b47cdb9d7fddab7ebf0c92628f61aae80843d8cbbac27", kill_on_drop: false }`
[INFO] [stderr]    Compiling perf-log v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log4rs::encode::writer`
[INFO] [stdout]  --> src/tracing_impl/term/tracing_term.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log4rs::encode::writer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GLOBAL` is never used
[INFO] [stdout]  --> src/slog_impl/term/slog_term.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | static mut GLOBAL: Option<slog_scope::GlobalLoggerGuard> = None;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]   --> src/slog_impl/term/slog_term.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn init() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[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" "e7f2e5757b4d2ca5d22b47cdb9d7fddab7ebf0c92628f61aae80843d8cbbac27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f2e5757b4d2ca5d22b47cdb9d7fddab7ebf0c92628f61aae80843d8cbbac27", kill_on_drop: false }`
[INFO] [stdout] e7f2e5757b4d2ca5d22b47cdb9d7fddab7ebf0c92628f61aae80843d8cbbac27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e7db961045b939a17e00f62c9440f01a0659ea893d8700e811fa7af0028d45b
[INFO] running `Command { std: "docker" "start" "-a" "1e7db961045b939a17e00f62c9440f01a0659ea893d8700e811fa7af0028d45b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `log4rs::encode::writer`
[INFO] [stderr]  --> src/tracing_impl/term/tracing_term.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use log4rs::encode::writer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static `GLOBAL` is never used
[INFO] [stderr]  --> src/slog_impl/term/slog_term.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | static mut GLOBAL: Option<slog_scope::GlobalLoggerGuard> = None;
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `init` is never used
[INFO] [stderr]   --> src/slog_impl/term/slog_term.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn init() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `perf-log` (bin "perf-log" test) generated 3 warnings (run `cargo fix --bin "perf-log" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/perf_log-6ff0384443d9f5c2)
[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] running `Command { std: "docker" "inspect" "1e7db961045b939a17e00f62c9440f01a0659ea893d8700e811fa7af0028d45b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e7db961045b939a17e00f62c9440f01a0659ea893d8700e811fa7af0028d45b", kill_on_drop: false }`
[INFO] [stdout] 1e7db961045b939a17e00f62c9440f01a0659ea893d8700e811fa7af0028d45b