[INFO] fetching crate darc 0.0.1...
[INFO] testing darc-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate darc 0.0.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate darc 0.0.1 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 darc 0.0.1
[INFO] finished tweaking crates.io crate darc 0.0.1
[INFO] tweaked toml for crates.io crate darc 0.0.1 written to /workspace/builds/worker-13/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 82df5edd701e8dd4aa30a06b7cbdb550ce38e6c8459bb80909542a1c66f8b4cb
[INFO] running `Command { std: "docker" "start" "-a" "82df5edd701e8dd4aa30a06b7cbdb550ce38e6c8459bb80909542a1c66f8b4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82df5edd701e8dd4aa30a06b7cbdb550ce38e6c8459bb80909542a1c66f8b4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82df5edd701e8dd4aa30a06b7cbdb550ce38e6c8459bb80909542a1c66f8b4cb", kill_on_drop: false }`
[INFO] [stdout] 82df5edd701e8dd4aa30a06b7cbdb550ce38e6c8459bb80909542a1c66f8b4cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9018075c3a32c252bb35979e255ec0bc602afe3da2e3beab68f59737082dfa32
[INFO] running `Command { std: "docker" "start" "-a" "9018075c3a32c252bb35979e255ec0bc602afe3da2e3beab68f59737082dfa32", kill_on_drop: false }`
[INFO] [stderr]    Compiling darc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "9018075c3a32c252bb35979e255ec0bc602afe3da2e3beab68f59737082dfa32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9018075c3a32c252bb35979e255ec0bc602afe3da2e3beab68f59737082dfa32", kill_on_drop: false }`
[INFO] [stdout] 9018075c3a32c252bb35979e255ec0bc602afe3da2e3beab68f59737082dfa32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9e717bf87b66cbff03258201d7183d1002bd38269433ecf5dfbf54d358bc3abf
[INFO] running `Command { std: "docker" "start" "-a" "9e717bf87b66cbff03258201d7183d1002bd38269433ecf5dfbf54d358bc3abf", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling darc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.84s
[INFO] running `Command { std: "docker" "inspect" "9e717bf87b66cbff03258201d7183d1002bd38269433ecf5dfbf54d358bc3abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e717bf87b66cbff03258201d7183d1002bd38269433ecf5dfbf54d358bc3abf", kill_on_drop: false }`
[INFO] [stdout] 9e717bf87b66cbff03258201d7183d1002bd38269433ecf5dfbf54d358bc3abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] a2cea5dc76f1f2eb4f4ed649bd3cec15d32028fd267843b4eca21107845a218f
[INFO] running `Command { std: "docker" "start" "-a" "a2cea5dc76f1f2eb4f4ed649bd3cec15d32028fd267843b4eca21107845a218f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/darc-3b8234aefd72e804)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests darc
[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 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" "a2cea5dc76f1f2eb4f4ed649bd3cec15d32028fd267843b4eca21107845a218f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2cea5dc76f1f2eb4f4ed649bd3cec15d32028fd267843b4eca21107845a218f", kill_on_drop: false }`
[INFO] [stdout] a2cea5dc76f1f2eb4f4ed649bd3cec15d32028fd267843b4eca21107845a218f