[INFO] fetching crate btwn 0.4.0...
[INFO] testing btwn-0.4.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate btwn 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate btwn 0.4.0 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 btwn 0.4.0
[INFO] finished tweaking crates.io crate btwn 0.4.0
[INFO] tweaked toml for crates.io crate btwn 0.4.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate btwn 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error v1.0.2
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.2
[INFO] [stderr]   Downloaded structopt-derive v0.4.6
[INFO] [stderr]   Downloaded structopt v0.3.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 2b3dcf34905d4e884f62b65835fbe91765995b93318283a84bf9ee15215b14f7
[INFO] running `Command { std: "docker" "start" "-a" "2b3dcf34905d4e884f62b65835fbe91765995b93318283a84bf9ee15215b14f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b3dcf34905d4e884f62b65835fbe91765995b93318283a84bf9ee15215b14f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b3dcf34905d4e884f62b65835fbe91765995b93318283a84bf9ee15215b14f7", kill_on_drop: false }`
[INFO] [stdout] 2b3dcf34905d4e884f62b65835fbe91765995b93318283a84bf9ee15215b14f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] e5ff795539be5e1f42ce5a5ee5b2878fd982ff28d95e87bfb98b85fb096f9b31
[INFO] running `Command { std: "docker" "start" "-a" "e5ff795539be5e1f42ce5a5ee5b2878fd982ff28d95e87bfb98b85fb096f9b31", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.6
[INFO] [stderr]    Compiling structopt v0.3.13
[INFO] [stderr]    Compiling btwn v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "e5ff795539be5e1f42ce5a5ee5b2878fd982ff28d95e87bfb98b85fb096f9b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ff795539be5e1f42ce5a5ee5b2878fd982ff28d95e87bfb98b85fb096f9b31", kill_on_drop: false }`
[INFO] [stdout] e5ff795539be5e1f42ce5a5ee5b2878fd982ff28d95e87bfb98b85fb096f9b31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 4cb8e562b6c4f06310cb10c1058ad60cd2001c38edaef78d27e175a6e8ab82c0
[INFO] running `Command { std: "docker" "start" "-a" "4cb8e562b6c4f06310cb10c1058ad60cd2001c38edaef78d27e175a6e8ab82c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling btwn v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "4cb8e562b6c4f06310cb10c1058ad60cd2001c38edaef78d27e175a6e8ab82c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb8e562b6c4f06310cb10c1058ad60cd2001c38edaef78d27e175a6e8ab82c0", kill_on_drop: false }`
[INFO] [stdout] 4cb8e562b6c4f06310cb10c1058ad60cd2001c38edaef78d27e175a6e8ab82c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ee5d9ac85f58fd2f5d58024cd0e26583a07dbf523400bec88073279ef2fcec4d
[INFO] running `Command { std: "docker" "start" "-a" "ee5d9ac85f58fd2f5d58024cd0e26583a07dbf523400bec88073279ef2fcec4d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btwn-afb8f3ba0a33d051)
[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" "ee5d9ac85f58fd2f5d58024cd0e26583a07dbf523400bec88073279ef2fcec4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5d9ac85f58fd2f5d58024cd0e26583a07dbf523400bec88073279ef2fcec4d", kill_on_drop: false }`
[INFO] [stdout] ee5d9ac85f58fd2f5d58024cd0e26583a07dbf523400bec88073279ef2fcec4d