[INFO] fetching crate iobuffer 0.2.0...
[INFO] testing iobuffer-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate iobuffer 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate iobuffer 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 446182b99c57819474206d5ee556eea3bc93cae431578da77e98888ee2ea3fb0
[INFO] running `Command { std: "docker" "start" "-a" "446182b99c57819474206d5ee556eea3bc93cae431578da77e98888ee2ea3fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "446182b99c57819474206d5ee556eea3bc93cae431578da77e98888ee2ea3fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446182b99c57819474206d5ee556eea3bc93cae431578da77e98888ee2ea3fb0", kill_on_drop: false }`
[INFO] [stdout] 446182b99c57819474206d5ee556eea3bc93cae431578da77e98888ee2ea3fb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 494d34ee1cf15ee484fc21e7a5c5babf9da87993b8026c487a1daade1e939b3d
[INFO] running `Command { std: "docker" "start" "-a" "494d34ee1cf15ee484fc21e7a5c5babf9da87993b8026c487a1daade1e939b3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling iobuffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "494d34ee1cf15ee484fc21e7a5c5babf9da87993b8026c487a1daade1e939b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "494d34ee1cf15ee484fc21e7a5c5babf9da87993b8026c487a1daade1e939b3d", kill_on_drop: false }`
[INFO] [stdout] 494d34ee1cf15ee484fc21e7a5c5babf9da87993b8026c487a1daade1e939b3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 249a9bb3038aaa56d9134e73fc16c7d3cb633e978858d2b24359f9564254e73c
[INFO] running `Command { std: "docker" "start" "-a" "249a9bb3038aaa56d9134e73fc16c7d3cb633e978858d2b24359f9564254e73c", kill_on_drop: false }`
[INFO] [stderr]    Compiling iobuffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "249a9bb3038aaa56d9134e73fc16c7d3cb633e978858d2b24359f9564254e73c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "249a9bb3038aaa56d9134e73fc16c7d3cb633e978858d2b24359f9564254e73c", kill_on_drop: false }`
[INFO] [stdout] 249a9bb3038aaa56d9134e73fc16c7d3cb633e978858d2b24359f9564254e73c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09b4f4515a58386fe2de894ac4513124ee7f1e84d9b6353a3d0c0a2b3f4e685e
[INFO] running `Command { std: "docker" "start" "-a" "09b4f4515a58386fe2de894ac4513124ee7f1e84d9b6353a3d0c0a2b3f4e685e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iobuffer-f179d874f7a6c127)
[INFO] [stdout] test tests::test_partial_lines ... ok
[INFO] [stderr]    Doc-tests iobuffer
[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] [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" "09b4f4515a58386fe2de894ac4513124ee7f1e84d9b6353a3d0c0a2b3f4e685e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b4f4515a58386fe2de894ac4513124ee7f1e84d9b6353a3d0c0a2b3f4e685e", kill_on_drop: false }`
[INFO] [stdout] 09b4f4515a58386fe2de894ac4513124ee7f1e84d9b6353a3d0c0a2b3f4e685e