[INFO] fetching crate base2 0.3.1...
[INFO] testing base2-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate base2 0.3.1 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate base2 0.3.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate base2 0.3.1
[INFO] finished tweaking crates.io crate base2 0.3.1
[INFO] tweaked toml for crates.io crate base2 0.3.1 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded int v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81f3a30bcb90cb3135086feb623c989edc39ee59fe616b88a2980f6e6543687b
[INFO] running `Command { std: "docker" "start" "-a" "81f3a30bcb90cb3135086feb623c989edc39ee59fe616b88a2980f6e6543687b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81f3a30bcb90cb3135086feb623c989edc39ee59fe616b88a2980f6e6543687b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f3a30bcb90cb3135086feb623c989edc39ee59fe616b88a2980f6e6543687b", kill_on_drop: false }`
[INFO] [stdout] 81f3a30bcb90cb3135086feb623c989edc39ee59fe616b88a2980f6e6543687b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f62e36d5cbec4b01c7df569f077cfb989523897986c8cf406f278dc5bf6667f2
[INFO] running `Command { std: "docker" "start" "-a" "f62e36d5cbec4b01c7df569f077cfb989523897986c8cf406f278dc5bf6667f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling int v0.3.0
[INFO] [stderr]    Compiling base2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "f62e36d5cbec4b01c7df569f077cfb989523897986c8cf406f278dc5bf6667f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62e36d5cbec4b01c7df569f077cfb989523897986c8cf406f278dc5bf6667f2", kill_on_drop: false }`
[INFO] [stdout] f62e36d5cbec4b01c7df569f077cfb989523897986c8cf406f278dc5bf6667f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4599aaa7d44e28c14d47bbc9066c17b54e7e79d37f0feabef39534321873f648
[INFO] running `Command { std: "docker" "start" "-a" "4599aaa7d44e28c14d47bbc9066c17b54e7e79d37f0feabef39534321873f648", kill_on_drop: false }`
[INFO] [stderr]    Compiling base2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "4599aaa7d44e28c14d47bbc9066c17b54e7e79d37f0feabef39534321873f648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4599aaa7d44e28c14d47bbc9066c17b54e7e79d37f0feabef39534321873f648", kill_on_drop: false }`
[INFO] [stdout] 4599aaa7d44e28c14d47bbc9066c17b54e7e79d37f0feabef39534321873f648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de0dbe48040775af0b2f0882209f7497ff280f1dfa13ab961505470e777f9f4d
[INFO] running `Command { std: "docker" "start" "-a" "de0dbe48040775af0b2f0882209f7497ff280f1dfa13ab961505470e777f9f4d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/base2-7b40848721e72ff1)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests base2
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Base2::floor_log2 (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Base2::mask (line 45) ... ok
[INFO] [stdout] test src/lib.rs - Base2::exp2 (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "de0dbe48040775af0b2f0882209f7497ff280f1dfa13ab961505470e777f9f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de0dbe48040775af0b2f0882209f7497ff280f1dfa13ab961505470e777f9f4d", kill_on_drop: false }`
[INFO] [stdout] de0dbe48040775af0b2f0882209f7497ff280f1dfa13ab961505470e777f9f4d