[INFO] cloning repository https://github.com/jonmartinstorm/rust-book-chp16
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonmartinstorm/rust-book-chp16" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonmartinstorm%2Frust-book-chp16", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonmartinstorm%2Frust-book-chp16'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ae73d7e908b6ab6014ea740f3db2e811dd58292
[INFO] testing jonmartinstorm/rust-book-chp16 against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonmartinstorm%2Frust-book-chp16" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonmartinstorm/rust-book-chp16 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 git repo https://github.com/jonmartinstorm/rust-book-chp16
[INFO] finished tweaking git repo https://github.com/jonmartinstorm/rust-book-chp16
[INFO] tweaked toml for git repo https://github.com/jonmartinstorm/rust-book-chp16 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/jonmartinstorm/rust-book-chp16 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-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] ce1e70a5ac5e4ce51cf36f9446562f9a8fe1c249199064a1a92ebbeb874f4a89
[INFO] running `Command { std: "docker" "start" "-a" "ce1e70a5ac5e4ce51cf36f9446562f9a8fe1c249199064a1a92ebbeb874f4a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce1e70a5ac5e4ce51cf36f9446562f9a8fe1c249199064a1a92ebbeb874f4a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1e70a5ac5e4ce51cf36f9446562f9a8fe1c249199064a1a92ebbeb874f4a89", kill_on_drop: false }`
[INFO] [stdout] ce1e70a5ac5e4ce51cf36f9446562f9a8fe1c249199064a1a92ebbeb874f4a89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] e9f3e5cd3cd69cc51dcc9108c299f5b6661a584ee9435768a2b618d92bd1a2ec
[INFO] running `Command { std: "docker" "start" "-a" "e9f3e5cd3cd69cc51dcc9108c299f5b6661a584ee9435768a2b618d92bd1a2ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "e9f3e5cd3cd69cc51dcc9108c299f5b6661a584ee9435768a2b618d92bd1a2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f3e5cd3cd69cc51dcc9108c299f5b6661a584ee9435768a2b618d92bd1a2ec", kill_on_drop: false }`
[INFO] [stdout] e9f3e5cd3cd69cc51dcc9108c299f5b6661a584ee9435768a2b618d92bd1a2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 739f1d207acd57dc23849b43701b96e57a6dcebddd3468bcfcc9a770dcf48a18
[INFO] running `Command { std: "docker" "start" "-a" "739f1d207acd57dc23849b43701b96e57a6dcebddd3468bcfcc9a770dcf48a18", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "739f1d207acd57dc23849b43701b96e57a6dcebddd3468bcfcc9a770dcf48a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739f1d207acd57dc23849b43701b96e57a6dcebddd3468bcfcc9a770dcf48a18", kill_on_drop: false }`
[INFO] [stdout] 739f1d207acd57dc23849b43701b96e57a6dcebddd3468bcfcc9a770dcf48a18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 00a58d75173e8b491d0371eefd88f746997c28089ac8fa5e772df4fe6be7f5ed
[INFO] running `Command { std: "docker" "start" "-a" "00a58d75173e8b491d0371eefd88f746997c28089ac8fa5e772df4fe6be7f5ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/threads-dcd5dfd1382ee414)
[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" "00a58d75173e8b491d0371eefd88f746997c28089ac8fa5e772df4fe6be7f5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00a58d75173e8b491d0371eefd88f746997c28089ac8fa5e772df4fe6be7f5ed", kill_on_drop: false }`
[INFO] [stdout] 00a58d75173e8b491d0371eefd88f746997c28089ac8fa5e772df4fe6be7f5ed