[INFO] fetching crate tap-trait 1.0.0...
[INFO] testing tap-trait-1.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tap-trait 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tap-trait 1.0.0 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 tap-trait 1.0.0
[INFO] finished tweaking crates.io crate tap-trait 1.0.0
[INFO] tweaked toml for crates.io crate tap-trait 1.0.0 written to /workspace/builds/worker-6/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]  Downloading crates ...
[INFO] [stderr]   Downloaded pipe-trait v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4c769e48581b23d0554fe01c8678a84f6d0b759353ec78b5d2c20ddb5624862e
[INFO] running `Command { std: "docker" "start" "-a" "4c769e48581b23d0554fe01c8678a84f6d0b759353ec78b5d2c20ddb5624862e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c769e48581b23d0554fe01c8678a84f6d0b759353ec78b5d2c20ddb5624862e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c769e48581b23d0554fe01c8678a84f6d0b759353ec78b5d2c20ddb5624862e", kill_on_drop: false }`
[INFO] [stdout] 4c769e48581b23d0554fe01c8678a84f6d0b759353ec78b5d2c20ddb5624862e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0eb1e17ed5ff541d4e40ce9c35bd246f7c54f4c6ba86d31b080c08a7aaee196e
[INFO] running `Command { std: "docker" "start" "-a" "0eb1e17ed5ff541d4e40ce9c35bd246f7c54f4c6ba86d31b080c08a7aaee196e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tap-trait v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "0eb1e17ed5ff541d4e40ce9c35bd246f7c54f4c6ba86d31b080c08a7aaee196e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb1e17ed5ff541d4e40ce9c35bd246f7c54f4c6ba86d31b080c08a7aaee196e", kill_on_drop: false }`
[INFO] [stdout] 0eb1e17ed5ff541d4e40ce9c35bd246f7c54f4c6ba86d31b080c08a7aaee196e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6a5d69079d7d396b64aaece1e757f80023e22461a02b6b235cc9a367c0b437c3
[INFO] running `Command { std: "docker" "start" "-a" "6a5d69079d7d396b64aaece1e757f80023e22461a02b6b235cc9a367c0b437c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling pipe-trait v0.3.2
[INFO] [stderr]    Compiling tap-trait v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "6a5d69079d7d396b64aaece1e757f80023e22461a02b6b235cc9a367c0b437c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5d69079d7d396b64aaece1e757f80023e22461a02b6b235cc9a367c0b437c3", kill_on_drop: false }`
[INFO] [stdout] 6a5d69079d7d396b64aaece1e757f80023e22461a02b6b235cc9a367c0b437c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] bd0b1a7a9ed2786565c36a901e09e22095931ca01f15dae1250f5bf89fdb8942
[INFO] running `Command { std: "docker" "start" "-a" "bd0b1a7a9ed2786565c36a901e09e22095931ca01f15dae1250f5bf89fdb8942", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tap_trait-54980924fdf38e1e)
[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 tap-trait
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd0b1a7a9ed2786565c36a901e09e22095931ca01f15dae1250f5bf89fdb8942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0b1a7a9ed2786565c36a901e09e22095931ca01f15dae1250f5bf89fdb8942", kill_on_drop: false }`
[INFO] [stdout] bd0b1a7a9ed2786565c36a901e09e22095931ca01f15dae1250f5bf89fdb8942