[INFO] fetching crate mextk-libc 0.1.0...
[INFO] testing mextk-libc-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mextk-libc 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate mextk-libc 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 mextk-libc 0.1.0
[INFO] finished tweaking crates.io crate mextk-libc 0.1.0
[INFO] tweaked toml for crates.io crate mextk-libc 0.1.0 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] a4b335706c436b61e154c0af2bf52852149af05c4ac55ab16d20b6f8b1a182d6
[INFO] running `Command { std: "docker" "start" "-a" "a4b335706c436b61e154c0af2bf52852149af05c4ac55ab16d20b6f8b1a182d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b335706c436b61e154c0af2bf52852149af05c4ac55ab16d20b6f8b1a182d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b335706c436b61e154c0af2bf52852149af05c4ac55ab16d20b6f8b1a182d6", kill_on_drop: false }`
[INFO] [stdout] a4b335706c436b61e154c0af2bf52852149af05c4ac55ab16d20b6f8b1a182d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 022b63ee5970df3f70643cf15f9ab80297d71d1f168acab926805fd8660ffbf2
[INFO] running `Command { std: "docker" "start" "-a" "022b63ee5970df3f70643cf15f9ab80297d71d1f168acab926805fd8660ffbf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling mextk-libc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "022b63ee5970df3f70643cf15f9ab80297d71d1f168acab926805fd8660ffbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022b63ee5970df3f70643cf15f9ab80297d71d1f168acab926805fd8660ffbf2", kill_on_drop: false }`
[INFO] [stdout] 022b63ee5970df3f70643cf15f9ab80297d71d1f168acab926805fd8660ffbf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 18881de2aa82774ac144d641a2be79593dcf0318b8bc6da52bb2db9c9e206dd3
[INFO] running `Command { std: "docker" "start" "-a" "18881de2aa82774ac144d641a2be79593dcf0318b8bc6da52bb2db9c9e206dd3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mextk-libc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "18881de2aa82774ac144d641a2be79593dcf0318b8bc6da52bb2db9c9e206dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18881de2aa82774ac144d641a2be79593dcf0318b8bc6da52bb2db9c9e206dd3", kill_on_drop: false }`
[INFO] [stdout] 18881de2aa82774ac144d641a2be79593dcf0318b8bc6da52bb2db9c9e206dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] e58f89127186eeb9be8f319005cefd15d1c44c9b13553382899858f281f5338b
[INFO] running `Command { std: "docker" "start" "-a" "e58f89127186eeb9be8f319005cefd15d1c44c9b13553382899858f281f5338b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mextk_libc-c441f5018930ba45)
[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] [stderr]    Doc-tests mextk-libc
[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" "e58f89127186eeb9be8f319005cefd15d1c44c9b13553382899858f281f5338b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58f89127186eeb9be8f319005cefd15d1c44c9b13553382899858f281f5338b", kill_on_drop: false }`
[INFO] [stdout] e58f89127186eeb9be8f319005cefd15d1c44c9b13553382899858f281f5338b