[INFO] fetching crate othello 0.1.2...
[INFO] testing othello-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate othello 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate othello 0.1.2 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 othello 0.1.2
[INFO] finished tweaking crates.io crate othello 0.1.2
[INFO] tweaked toml for crates.io crate othello 0.1.2 written to /workspace/builds/worker-2/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]  Downloading crates ...
[INFO] [stderr]   Downloaded bitintr v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4fcacdb3bdf4309693bee242508ba6a0ad9bdd71b5f137ebffe0b17d46106169
[INFO] running `Command { std: "docker" "start" "-a" "4fcacdb3bdf4309693bee242508ba6a0ad9bdd71b5f137ebffe0b17d46106169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fcacdb3bdf4309693bee242508ba6a0ad9bdd71b5f137ebffe0b17d46106169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcacdb3bdf4309693bee242508ba6a0ad9bdd71b5f137ebffe0b17d46106169", kill_on_drop: false }`
[INFO] [stdout] 4fcacdb3bdf4309693bee242508ba6a0ad9bdd71b5f137ebffe0b17d46106169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 7eb10e5adcd9ef8cf98ddc7973bed8c3e88528f6a55913df95dc99d99976217b
[INFO] running `Command { std: "docker" "start" "-a" "7eb10e5adcd9ef8cf98ddc7973bed8c3e88528f6a55913df95dc99d99976217b", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]    Compiling othello v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "7eb10e5adcd9ef8cf98ddc7973bed8c3e88528f6a55913df95dc99d99976217b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb10e5adcd9ef8cf98ddc7973bed8c3e88528f6a55913df95dc99d99976217b", kill_on_drop: false }`
[INFO] [stdout] 7eb10e5adcd9ef8cf98ddc7973bed8c3e88528f6a55913df95dc99d99976217b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d5d36f5348253d54e7244baade5ba3b4c211d7450dbd21b2ba4da90973a50f5f
[INFO] running `Command { std: "docker" "start" "-a" "d5d36f5348253d54e7244baade5ba3b4c211d7450dbd21b2ba4da90973a50f5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling othello v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `bititr`
[INFO] [stdout]   --> src/test.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |             r => bititr::BitScan(r)
[INFO] [stdout]    |                  ^^^^^^ use of undeclared crate or module `bititr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `othello` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5d36f5348253d54e7244baade5ba3b4c211d7450dbd21b2ba4da90973a50f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d36f5348253d54e7244baade5ba3b4c211d7450dbd21b2ba4da90973a50f5f", kill_on_drop: false }`
[INFO] [stdout] d5d36f5348253d54e7244baade5ba3b4c211d7450dbd21b2ba4da90973a50f5f