[INFO] fetching crate libw 0.1.6...
[INFO] testing libw-0.1.6 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate libw 0.1.6 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate libw 0.1.6 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libw 0.1.6
[INFO] finished tweaking crates.io crate libw 0.1.6
[INFO] tweaked toml for crates.io crate libw 0.1.6 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+wasi-snapshot-preview1` for dependency `wasi` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 598c341500718f609df5516a08669eb1937d49c1c6b4c6d049a8d6bdd1edd3b2
[INFO] running `Command { std: "docker" "start" "-a" "598c341500718f609df5516a08669eb1937d49c1c6b4c6d049a8d6bdd1edd3b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "598c341500718f609df5516a08669eb1937d49c1c6b4c6d049a8d6bdd1edd3b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598c341500718f609df5516a08669eb1937d49c1c6b4c6d049a8d6bdd1edd3b2", kill_on_drop: false }`
[INFO] [stdout] 598c341500718f609df5516a08669eb1937d49c1c6b4c6d049a8d6bdd1edd3b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99235c33f7db52a82290bdd30912562f37198c3b2a9ccb57822e86e6fe76495d
[INFO] running `Command { std: "docker" "start" "-a" "99235c33f7db52a82290bdd30912562f37198c3b2a9ccb57822e86e6fe76495d", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+wasi-snapshot-preview1` for dependency `wasi` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]    Compiling libw v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "99235c33f7db52a82290bdd30912562f37198c3b2a9ccb57822e86e6fe76495d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99235c33f7db52a82290bdd30912562f37198c3b2a9ccb57822e86e6fe76495d", kill_on_drop: false }`
[INFO] [stdout] 99235c33f7db52a82290bdd30912562f37198c3b2a9ccb57822e86e6fe76495d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ee8421f1d598032dd532ece8f06a80ec84aed81293a81986c4ab4d2441bd46f
[INFO] running `Command { std: "docker" "start" "-a" "2ee8421f1d598032dd532ece8f06a80ec84aed81293a81986c4ab4d2441bd46f", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+wasi-snapshot-preview1` for dependency `wasi` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libw v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "2ee8421f1d598032dd532ece8f06a80ec84aed81293a81986c4ab4d2441bd46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee8421f1d598032dd532ece8f06a80ec84aed81293a81986c4ab4d2441bd46f", kill_on_drop: false }`
[INFO] [stdout] 2ee8421f1d598032dd532ece8f06a80ec84aed81293a81986c4ab4d2441bd46f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fdcfbf3eb7f1c2c90389baa304474f83d331b3c7e4db97b022e2e4ba10585186
[INFO] running `Command { std: "docker" "start" "-a" "fdcfbf3eb7f1c2c90389baa304474f83d331b3c7e4db97b022e2e4ba10585186", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+wasi-snapshot-preview1` for dependency `wasi` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libw-3897c828442aa7e4)
[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 libw
[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" "fdcfbf3eb7f1c2c90389baa304474f83d331b3c7e4db97b022e2e4ba10585186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcfbf3eb7f1c2c90389baa304474f83d331b3c7e4db97b022e2e4ba10585186", kill_on_drop: false }`
[INFO] [stdout] fdcfbf3eb7f1c2c90389baa304474f83d331b3c7e4db97b022e2e4ba10585186