[INFO] fetching crate simple-log 1.0.6...
[INFO] testing simple-log-1.0.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate simple-log 1.0.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate simple-log 1.0.6 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 simple-log 1.0.6
[INFO] finished tweaking crates.io crate simple-log 1.0.6
[INFO] tweaked toml for crates.io crate simple-log 1.0.6 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate simple-log 1.0.6 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 987b36fbfa997fa49099f0a93e5e3695333f659956984549b22dda478dada4c9
[INFO] running `Command { std: "docker" "start" "-a" "987b36fbfa997fa49099f0a93e5e3695333f659956984549b22dda478dada4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "987b36fbfa997fa49099f0a93e5e3695333f659956984549b22dda478dada4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "987b36fbfa997fa49099f0a93e5e3695333f659956984549b22dda478dada4c9", kill_on_drop: false }`
[INFO] [stdout] 987b36fbfa997fa49099f0a93e5e3695333f659956984549b22dda478dada4c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 2c14035b8fe2b81e0c4b0d203df0a123afe4d8616f57964367d95ccc8abc54da
[INFO] running `Command { std: "docker" "start" "-a" "2c14035b8fe2b81e0c4b0d203df0a123afe4d8616f57964367d95ccc8abc54da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling arc-swap v0.4.8
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling serde-value v0.6.0
[INFO] [stderr]    Compiling log4rs v0.13.0
[INFO] [stderr]    Compiling simple-log v1.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.14s
[INFO] running `Command { std: "docker" "inspect" "2c14035b8fe2b81e0c4b0d203df0a123afe4d8616f57964367d95ccc8abc54da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c14035b8fe2b81e0c4b0d203df0a123afe4d8616f57964367d95ccc8abc54da", kill_on_drop: false }`
[INFO] [stdout] 2c14035b8fe2b81e0c4b0d203df0a123afe4d8616f57964367d95ccc8abc54da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] fc4255da0e22a5e522bfad285e249cabbda33cfc4970a4ac8f6f12e16c866b9b
[INFO] running `Command { std: "docker" "start" "-a" "fc4255da0e22a5e522bfad285e249cabbda33cfc4970a4ac8f6f12e16c866b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling simple-log v1.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `simple-log`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name toml_log --edition=2018 examples/toml_log.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=5b7ce0a374462655 -C extra-filename=-5b7ce0a374462655 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-2bd6ab4cd48c03b3.rlib --extern log4rs=/opt/rustwide/target/debug/deps/liblog4rs-7cb3e1d305e58fbf.rlib --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-696113341221cfe0.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-d83ee3a88351c5db.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b8979c1b105d830c.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-53f534c49f7e276c.rlib --extern simple_log=/opt/rustwide/target/debug/deps/libsimple_log-078393b97c275bb5.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-5e90cbdd791d4183.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fc4255da0e22a5e522bfad285e249cabbda33cfc4970a4ac8f6f12e16c866b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4255da0e22a5e522bfad285e249cabbda33cfc4970a4ac8f6f12e16c866b9b", kill_on_drop: false }`
[INFO] [stdout] fc4255da0e22a5e522bfad285e249cabbda33cfc4970a4ac8f6f12e16c866b9b