[INFO] fetching crate fructose 0.3.9...
[INFO] testing fructose-0.3.9 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fructose 0.3.9 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate fructose 0.3.9 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 fructose 0.3.9
[INFO] finished tweaking crates.io crate fructose 0.3.9
[INFO] tweaked toml for crates.io crate fructose 0.3.9 written to /workspace/builds/worker-43/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 0b396ca3ccd512cea20cc17bacfe7e092ef9a9e946034f89221abba7888a915a
[INFO] running `Command { std: "docker" "start" "-a" "0b396ca3ccd512cea20cc17bacfe7e092ef9a9e946034f89221abba7888a915a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b396ca3ccd512cea20cc17bacfe7e092ef9a9e946034f89221abba7888a915a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b396ca3ccd512cea20cc17bacfe7e092ef9a9e946034f89221abba7888a915a", kill_on_drop: false }`
[INFO] [stdout] 0b396ca3ccd512cea20cc17bacfe7e092ef9a9e946034f89221abba7888a915a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] a65a9efac76a8e7e2bb650cc36e253b7cd20a05658c63c83e502ebfd6dedf9fe
[INFO] running `Command { std: "docker" "start" "-a" "a65a9efac76a8e7e2bb650cc36e253b7cd20a05658c63c83e502ebfd6dedf9fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fructose v0.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "a65a9efac76a8e7e2bb650cc36e253b7cd20a05658c63c83e502ebfd6dedf9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65a9efac76a8e7e2bb650cc36e253b7cd20a05658c63c83e502ebfd6dedf9fe", kill_on_drop: false }`
[INFO] [stdout] a65a9efac76a8e7e2bb650cc36e253b7cd20a05658c63c83e502ebfd6dedf9fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] ad4e6dc5b738c257c3185b2691d8acc83000c612a61d27cb44560c526867538b
[INFO] running `Command { std: "docker" "start" "-a" "ad4e6dc5b738c257c3185b2691d8acc83000c612a61d27cb44560c526867538b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fructose v0.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "ad4e6dc5b738c257c3185b2691d8acc83000c612a61d27cb44560c526867538b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4e6dc5b738c257c3185b2691d8acc83000c612a61d27cb44560c526867538b", kill_on_drop: false }`
[INFO] [stdout] ad4e6dc5b738c257c3185b2691d8acc83000c612a61d27cb44560c526867538b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] b21a46967892fbe80298e2f91c34dbdf5a1c690cfe7733a2a6fa859c97ff51ad
[INFO] running `Command { std: "docker" "start" "-a" "b21a46967892fbe80298e2f91c34dbdf5a1c690cfe7733a2a6fa859c97ff51ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fructose-528ef64704194fb7)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test algorithms::euclidean::euclidean_tests::test_extended_euclid_div ... ok
[INFO] [stdout] test algorithms::euclidean::euclidean_tests::test_euclid_div ... ok
[INFO] [stderr]    Doc-tests fructose
[INFO] [stdout] test algorithms::euclidean::euclidean_tests::test_extended_euclid_div_steps ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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" "b21a46967892fbe80298e2f91c34dbdf5a1c690cfe7733a2a6fa859c97ff51ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21a46967892fbe80298e2f91c34dbdf5a1c690cfe7733a2a6fa859c97ff51ad", kill_on_drop: false }`
[INFO] [stdout] b21a46967892fbe80298e2f91c34dbdf5a1c690cfe7733a2a6fa859c97ff51ad