[INFO] fetching crate iobuffer 0.2.0...
[INFO] testing iobuffer-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate iobuffer 0.2.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate iobuffer 0.2.0 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 iobuffer 0.2.0
[INFO] finished tweaking crates.io crate iobuffer 0.2.0
[INFO] tweaked toml for crates.io crate iobuffer 0.2.0 written to /workspace/builds/worker-93/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] [stderr]     Blocking waiting for file lock on package cache
[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-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] dbdc19d5ffa3180da4fd9277529a488f6f38df37ee1a01eb2bf8f25b9d3fa627
[INFO] running `Command { std: "docker" "start" "-a" "dbdc19d5ffa3180da4fd9277529a488f6f38df37ee1a01eb2bf8f25b9d3fa627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbdc19d5ffa3180da4fd9277529a488f6f38df37ee1a01eb2bf8f25b9d3fa627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbdc19d5ffa3180da4fd9277529a488f6f38df37ee1a01eb2bf8f25b9d3fa627", kill_on_drop: false }`
[INFO] [stdout] dbdc19d5ffa3180da4fd9277529a488f6f38df37ee1a01eb2bf8f25b9d3fa627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] c5d5ae21eeba7397cae0818715b592fc8a6c2cbe3922f4b60562a244ec18966e
[INFO] running `Command { std: "docker" "start" "-a" "c5d5ae21eeba7397cae0818715b592fc8a6c2cbe3922f4b60562a244ec18966e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling iobuffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "c5d5ae21eeba7397cae0818715b592fc8a6c2cbe3922f4b60562a244ec18966e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d5ae21eeba7397cae0818715b592fc8a6c2cbe3922f4b60562a244ec18966e", kill_on_drop: false }`
[INFO] [stdout] c5d5ae21eeba7397cae0818715b592fc8a6c2cbe3922f4b60562a244ec18966e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] 1a9a760f0a7893fd7103a01a33d5879f918d5262ad4a5e96dd86c75a331d721a
[INFO] running `Command { std: "docker" "start" "-a" "1a9a760f0a7893fd7103a01a33d5879f918d5262ad4a5e96dd86c75a331d721a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling iobuffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "1a9a760f0a7893fd7103a01a33d5879f918d5262ad4a5e96dd86c75a331d721a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9a760f0a7893fd7103a01a33d5879f918d5262ad4a5e96dd86c75a331d721a", kill_on_drop: false }`
[INFO] [stdout] 1a9a760f0a7893fd7103a01a33d5879f918d5262ad4a5e96dd86c75a331d721a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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] 749f98b38f7024ac4e804ae096f02f0843b92819fb39cde8b9920f95b2cde807
[INFO] running `Command { std: "docker" "start" "-a" "749f98b38f7024ac4e804ae096f02f0843b92819fb39cde8b9920f95b2cde807", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iobuffer-a68cd0fded04c949)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_partial_lines ... ok
[INFO] [stdout] test tests::test_simple_buffer_usage ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iobuffer
[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" "749f98b38f7024ac4e804ae096f02f0843b92819fb39cde8b9920f95b2cde807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749f98b38f7024ac4e804ae096f02f0843b92819fb39cde8b9920f95b2cde807", kill_on_drop: false }`
[INFO] [stdout] 749f98b38f7024ac4e804ae096f02f0843b92819fb39cde8b9920f95b2cde807