[INFO] fetching crate nonstd 0.1.0...
[INFO] testing nonstd-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate nonstd 0.1.0 into /workspace/builds/worker-114/source
[INFO] validating manifest of crates.io crate nonstd 0.1.0 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 nonstd 0.1.0
[INFO] finished tweaking crates.io crate nonstd 0.1.0
[INFO] tweaked toml for crates.io crate nonstd 0.1.0 written to /workspace/builds/worker-114/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] 5b4a6cf4f289df892685ef1c53803bbcc151b8e9043d19898587edf8f9f5e2cb
[INFO] running `Command { std: "docker" "start" "-a" "5b4a6cf4f289df892685ef1c53803bbcc151b8e9043d19898587edf8f9f5e2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b4a6cf4f289df892685ef1c53803bbcc151b8e9043d19898587edf8f9f5e2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4a6cf4f289df892685ef1c53803bbcc151b8e9043d19898587edf8f9f5e2cb", kill_on_drop: false }`
[INFO] [stdout] 5b4a6cf4f289df892685ef1c53803bbcc151b8e9043d19898587edf8f9f5e2cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] b4281e07ad516fbca82f65e65c2731a392501715e2540db5ec85c2a43c2d2601
[INFO] running `Command { std: "docker" "start" "-a" "b4281e07ad516fbca82f65e65c2731a392501715e2540db5ec85c2a43c2d2601", kill_on_drop: false }`
[INFO] [stderr]    Compiling nonstd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "b4281e07ad516fbca82f65e65c2731a392501715e2540db5ec85c2a43c2d2601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4281e07ad516fbca82f65e65c2731a392501715e2540db5ec85c2a43c2d2601", kill_on_drop: false }`
[INFO] [stdout] b4281e07ad516fbca82f65e65c2731a392501715e2540db5ec85c2a43c2d2601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] 913a175f1c8e2eee06c27d6ae69b192ae4e05106a58669fe2f34c4429bba500d
[INFO] running `Command { std: "docker" "start" "-a" "913a175f1c8e2eee06c27d6ae69b192ae4e05106a58669fe2f34c4429bba500d", kill_on_drop: false }`
[INFO] [stderr]    Compiling nonstd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "913a175f1c8e2eee06c27d6ae69b192ae4e05106a58669fe2f34c4429bba500d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "913a175f1c8e2eee06c27d6ae69b192ae4e05106a58669fe2f34c4429bba500d", kill_on_drop: false }`
[INFO] [stdout] 913a175f1c8e2eee06c27d6ae69b192ae4e05106a58669fe2f34c4429bba500d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] 15d1163c67bf06853f693e906dd01489cdb6aa14ee696d4ec5bb0765916761f7
[INFO] running `Command { std: "docker" "start" "-a" "15d1163c67bf06853f693e906dd01489cdb6aa14ee696d4ec5bb0765916761f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nonstd-03b93e948821ed38)
[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]      Running tests/string_buffer.rs (/opt/rustwide/target/debug/deps/string_buffer-8174fd57f06ca37d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test string_buffer_is_a_writer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nonstd
[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" "15d1163c67bf06853f693e906dd01489cdb6aa14ee696d4ec5bb0765916761f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d1163c67bf06853f693e906dd01489cdb6aa14ee696d4ec5bb0765916761f7", kill_on_drop: false }`
[INFO] [stdout] 15d1163c67bf06853f693e906dd01489cdb6aa14ee696d4ec5bb0765916761f7