[INFO] fetching crate prev-iter 0.1.2...
[INFO] testing prev-iter-0.1.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate prev-iter 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate prev-iter 0.1.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prev-iter 0.1.2
[INFO] finished tweaking crates.io crate prev-iter 0.1.2
[INFO] tweaked toml for crates.io crate prev-iter 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 325fbb9c953e99aa652ee84e0692248319c4a1cd453d1f12c77ad1d9812caa00
[INFO] running `Command { std: "docker" "start" "-a" "325fbb9c953e99aa652ee84e0692248319c4a1cd453d1f12c77ad1d9812caa00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "325fbb9c953e99aa652ee84e0692248319c4a1cd453d1f12c77ad1d9812caa00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325fbb9c953e99aa652ee84e0692248319c4a1cd453d1f12c77ad1d9812caa00", kill_on_drop: false }`
[INFO] [stdout] 325fbb9c953e99aa652ee84e0692248319c4a1cd453d1f12c77ad1d9812caa00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e824eb85f359197e6ebb664cf0e4e232fbff0a5d29eaecb0185e9e37303a996
[INFO] running `Command { std: "docker" "start" "-a" "0e824eb85f359197e6ebb664cf0e4e232fbff0a5d29eaecb0185e9e37303a996", kill_on_drop: false }`
[INFO] [stderr]    Compiling prev-iter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "0e824eb85f359197e6ebb664cf0e4e232fbff0a5d29eaecb0185e9e37303a996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e824eb85f359197e6ebb664cf0e4e232fbff0a5d29eaecb0185e9e37303a996", kill_on_drop: false }`
[INFO] [stdout] 0e824eb85f359197e6ebb664cf0e4e232fbff0a5d29eaecb0185e9e37303a996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e22f19881082268a33d8d7b317f752b003500eb618ef1695615b87802e466eda
[INFO] running `Command { std: "docker" "start" "-a" "e22f19881082268a33d8d7b317f752b003500eb618ef1695615b87802e466eda", kill_on_drop: false }`
[INFO] [stderr]    Compiling prev-iter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "e22f19881082268a33d8d7b317f752b003500eb618ef1695615b87802e466eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22f19881082268a33d8d7b317f752b003500eb618ef1695615b87802e466eda", kill_on_drop: false }`
[INFO] [stdout] e22f19881082268a33d8d7b317f752b003500eb618ef1695615b87802e466eda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fac422cbcb63fba3dda1aaf34cf9a9906176eee2d20dc8f225a889c3fbab62db
[INFO] running `Command { std: "docker" "start" "-a" "fac422cbcb63fba3dda1aaf34cf9a9906176eee2d20dc8f225a889c3fbab62db", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prev_iter-56ced2dc8d63b434)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_peek ... ok
[INFO] [stdout] test tests::test_prev ... ok
[INFO] [stdout] test tests::test_next ... ok
[INFO] [stdout] test tests::test_prev_peek ... 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] [stderr]    Doc-tests prev-iter
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - PrevPeekable<I>::new (line 41) ... ok
[INFO] [stdout] test src/lib.rs - PrevPeekable<I>::peek (line 76) ... ok
[INFO] [stdout] test src/lib.rs - PrevPeekable<I>::prev_peek (line 148) ... ok
[INFO] [stdout] test src/lib.rs - PrevPeekable<I>::prev (line 110) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fac422cbcb63fba3dda1aaf34cf9a9906176eee2d20dc8f225a889c3fbab62db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac422cbcb63fba3dda1aaf34cf9a9906176eee2d20dc8f225a889c3fbab62db", kill_on_drop: false }`
[INFO] [stdout] fac422cbcb63fba3dda1aaf34cf9a9906176eee2d20dc8f225a889c3fbab62db