[INFO] fetching crate std-logger 0.4.1...
[INFO] testing std-logger-0.4.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate std-logger 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate std-logger 0.4.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate std-logger 0.4.1
[INFO] finished tweaking crates.io crate std-logger 0.4.1
[INFO] tweaked toml for crates.io crate std-logger 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate std-logger 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log-panics v2.0.0
[INFO] [stderr]   Downloaded ctor v0.1.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34b153981fc55e560d421c2c3f33f838e39fe503dd6351f6962f1356d2f0ed5a
[INFO] running `Command { std: "docker" "start" "-a" "34b153981fc55e560d421c2c3f33f838e39fe503dd6351f6962f1356d2f0ed5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34b153981fc55e560d421c2c3f33f838e39fe503dd6351f6962f1356d2f0ed5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b153981fc55e560d421c2c3f33f838e39fe503dd6351f6962f1356d2f0ed5a", kill_on_drop: false }`
[INFO] [stdout] 34b153981fc55e560d421c2c3f33f838e39fe503dd6351f6962f1356d2f0ed5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38144a464a8df6e003f604b9061f92b8849b080faa611974313c8f78e371d926
[INFO] running `Command { std: "docker" "start" "-a" "38144a464a8df6e003f604b9061f92b8849b080faa611974313c8f78e371d926", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling ctor v0.1.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling log-panics v2.0.0
[INFO] [stderr]    Compiling std-logger v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `Command { std: "docker" "inspect" "38144a464a8df6e003f604b9061f92b8849b080faa611974313c8f78e371d926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38144a464a8df6e003f604b9061f92b8849b080faa611974313c8f78e371d926", kill_on_drop: false }`
[INFO] [stdout] 38144a464a8df6e003f604b9061f92b8849b080faa611974313c8f78e371d926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9464bd868140c759304f5ed3f430ffe3e22adda5f64c71819f1b7e9f1655a48
[INFO] running `Command { std: "docker" "start" "-a" "e9464bd868140c759304f5ed3f430ffe3e22adda5f64c71819f1b7e9f1655a48", kill_on_drop: false }`
[INFO] [stderr]    Compiling std-logger v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `tests`
[INFO] [stdout]    --> src/lib.rs:244:1
[INFO] [stdout]     |
[INFO] [stdout] 244 | mod tests;
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: to create the module `tests`, create file "src/tests.rs" or "src/tests/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LOG_OUTPUT`
[INFO] [stdout]    --> src/lib.rs:505:46
[INFO] [stdout]     |
[INFO] [stdout] 505 | use self::test_instruments::{stderr, stdout, LOG_OUTPUT};
[INFO] [stdout]     |                                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `std-logger` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e9464bd868140c759304f5ed3f430ffe3e22adda5f64c71819f1b7e9f1655a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9464bd868140c759304f5ed3f430ffe3e22adda5f64c71819f1b7e9f1655a48", kill_on_drop: false }`
[INFO] [stdout] e9464bd868140c759304f5ed3f430ffe3e22adda5f64c71819f1b7e9f1655a48