[INFO] fetching crate log_t 0.1.0...
[INFO] testing log_t-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate log_t 0.1.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate log_t 0.1.0 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 log_t 0.1.0
[INFO] finished tweaking crates.io crate log_t 0.1.0
[INFO] tweaked toml for crates.io crate log_t 0.1.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 769e41c9e02e58fefb626b87d156f6a83c37987b6bf8049fcf83ad39042320e6
[INFO] running `Command { std: "docker" "start" "-a" "769e41c9e02e58fefb626b87d156f6a83c37987b6bf8049fcf83ad39042320e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "769e41c9e02e58fefb626b87d156f6a83c37987b6bf8049fcf83ad39042320e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769e41c9e02e58fefb626b87d156f6a83c37987b6bf8049fcf83ad39042320e6", kill_on_drop: false }`
[INFO] [stdout] 769e41c9e02e58fefb626b87d156f6a83c37987b6bf8049fcf83ad39042320e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] acfdd4f3ffacaf60394e374706adb9b56c59945a336f21b4a1b7e2f6a6633d5c
[INFO] running `Command { std: "docker" "start" "-a" "acfdd4f3ffacaf60394e374706adb9b56c59945a336f21b4a1b7e2f6a6633d5c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling contracts v0.6.2
[INFO] [stderr]    Compiling log_t v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.52s
[INFO] running `Command { std: "docker" "inspect" "acfdd4f3ffacaf60394e374706adb9b56c59945a336f21b4a1b7e2f6a6633d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acfdd4f3ffacaf60394e374706adb9b56c59945a336f21b4a1b7e2f6a6633d5c", kill_on_drop: false }`
[INFO] [stdout] acfdd4f3ffacaf60394e374706adb9b56c59945a336f21b4a1b7e2f6a6633d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 72bcd9ba213ce2fba11e507b022b6782385f8cdef188f30d7798ecce0ac0056f
[INFO] running `Command { std: "docker" "start" "-a" "72bcd9ba213ce2fba11e507b022b6782385f8cdef188f30d7798ecce0ac0056f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling log_t v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "72bcd9ba213ce2fba11e507b022b6782385f8cdef188f30d7798ecce0ac0056f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72bcd9ba213ce2fba11e507b022b6782385f8cdef188f30d7798ecce0ac0056f", kill_on_drop: false }`
[INFO] [stdout] 72bcd9ba213ce2fba11e507b022b6782385f8cdef188f30d7798ecce0ac0056f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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", kill_on_drop: false }`
[INFO] [stdout] 1ba20ab45975e7ed66140c0a9d93a7fe758b021996282bc1c91d6a9957c1a5ef
[INFO] running `Command { std: "docker" "start" "-a" "1ba20ab45975e7ed66140c0a9d93a7fe758b021996282bc1c91d6a9957c1a5ef", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/log_t-0601e33ed11fbcc7)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log_t
[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] running `Command { std: "docker" "inspect" "1ba20ab45975e7ed66140c0a9d93a7fe758b021996282bc1c91d6a9957c1a5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba20ab45975e7ed66140c0a9d93a7fe758b021996282bc1c91d6a9957c1a5ef", kill_on_drop: false }`
[INFO] [stdout] 1ba20ab45975e7ed66140c0a9d93a7fe758b021996282bc1c91d6a9957c1a5ef