[INFO] fetching crate cowvec 0.1.2...
[INFO] testing cowvec-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate cowvec 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cowvec 0.1.2 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 cowvec 0.1.2
[INFO] finished tweaking crates.io crate cowvec 0.1.2
[INFO] tweaked toml for crates.io crate cowvec 0.1.2 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]     Blocking waiting for file lock on package cache
[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] 6e7cf391ed4604258cca2661a3890b6cdd1b753c3c1772359f21abaeee642d83
[INFO] running `Command { std: "docker" "start" "-a" "6e7cf391ed4604258cca2661a3890b6cdd1b753c3c1772359f21abaeee642d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e7cf391ed4604258cca2661a3890b6cdd1b753c3c1772359f21abaeee642d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7cf391ed4604258cca2661a3890b6cdd1b753c3c1772359f21abaeee642d83", kill_on_drop: false }`
[INFO] [stdout] 6e7cf391ed4604258cca2661a3890b6cdd1b753c3c1772359f21abaeee642d83
[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] 1dd5e374320d3cb9c4fc116c6224565ea946fef09aff6e642e38d91d1c5aab56
[INFO] running `Command { std: "docker" "start" "-a" "1dd5e374320d3cb9c4fc116c6224565ea946fef09aff6e642e38d91d1c5aab56", kill_on_drop: false }`
[INFO] [stderr]    Compiling cowvec v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "1dd5e374320d3cb9c4fc116c6224565ea946fef09aff6e642e38d91d1c5aab56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd5e374320d3cb9c4fc116c6224565ea946fef09aff6e642e38d91d1c5aab56", kill_on_drop: false }`
[INFO] [stdout] 1dd5e374320d3cb9c4fc116c6224565ea946fef09aff6e642e38d91d1c5aab56
[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] 72d5fd55eebfb9569f8174654fbb5c74ba0a55048e2b24cf1ddade30126d2934
[INFO] running `Command { std: "docker" "start" "-a" "72d5fd55eebfb9569f8174654fbb5c74ba0a55048e2b24cf1ddade30126d2934", kill_on_drop: false }`
[INFO] [stderr]    Compiling cowvec v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "72d5fd55eebfb9569f8174654fbb5c74ba0a55048e2b24cf1ddade30126d2934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d5fd55eebfb9569f8174654fbb5c74ba0a55048e2b24cf1ddade30126d2934", kill_on_drop: false }`
[INFO] [stdout] 72d5fd55eebfb9569f8174654fbb5c74ba0a55048e2b24cf1ddade30126d2934
[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] 863cc3031656704dc195749914f3403dad4991a34ae65c9160608757561428b4
[INFO] running `Command { std: "docker" "start" "-a" "863cc3031656704dc195749914f3403dad4991a34ae65c9160608757561428b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cowvec-1c90cf20109fa5dd)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests cowvec
[INFO] [stdout] test tests::borrowed ... ok
[INFO] [stdout] test tests::borrowed_str ... ok
[INFO] [stdout] test tests::owned ... ok
[INFO] [stdout] test tests::owned_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "863cc3031656704dc195749914f3403dad4991a34ae65c9160608757561428b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863cc3031656704dc195749914f3403dad4991a34ae65c9160608757561428b4", kill_on_drop: false }`
[INFO] [stdout] 863cc3031656704dc195749914f3403dad4991a34ae65c9160608757561428b4