[INFO] fetching crate variant_counter_derived 0.3.0...
[INFO] testing variant_counter_derived-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate variant_counter_derived 0.3.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate variant_counter_derived 0.3.0 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 variant_counter_derived 0.3.0
[INFO] finished tweaking crates.io crate variant_counter_derived 0.3.0
[INFO] tweaked toml for crates.io crate variant_counter_derived 0.3.0 written to /workspace/builds/worker-57/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 20c2503f39e826208d3eda46baf9b64b20bac1f917e6da545c22527017ea88f3
[INFO] running `Command { std: "docker" "start" "-a" "20c2503f39e826208d3eda46baf9b64b20bac1f917e6da545c22527017ea88f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c2503f39e826208d3eda46baf9b64b20bac1f917e6da545c22527017ea88f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c2503f39e826208d3eda46baf9b64b20bac1f917e6da545c22527017ea88f3", kill_on_drop: false }`
[INFO] [stdout] 20c2503f39e826208d3eda46baf9b64b20bac1f917e6da545c22527017ea88f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 432f6610e3b305dbf0797d3585cd2bdcec2b9cca4b12dfa33bef7334fe1f2112
[INFO] running `Command { std: "docker" "start" "-a" "432f6610e3b305dbf0797d3585cd2bdcec2b9cca4b12dfa33bef7334fe1f2112", kill_on_drop: false }`
[INFO] [stderr]    Compiling variant_counter_derived v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "432f6610e3b305dbf0797d3585cd2bdcec2b9cca4b12dfa33bef7334fe1f2112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432f6610e3b305dbf0797d3585cd2bdcec2b9cca4b12dfa33bef7334fe1f2112", kill_on_drop: false }`
[INFO] [stdout] 432f6610e3b305dbf0797d3585cd2bdcec2b9cca4b12dfa33bef7334fe1f2112
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] f90fe855c964c514098896c3e2c87bc61bcad7699912fae703b5c1e9efa44909
[INFO] running `Command { std: "docker" "start" "-a" "f90fe855c964c514098896c3e2c87bc61bcad7699912fae703b5c1e9efa44909", kill_on_drop: false }`
[INFO] [stderr]    Compiling variant_counter_derived v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "f90fe855c964c514098896c3e2c87bc61bcad7699912fae703b5c1e9efa44909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90fe855c964c514098896c3e2c87bc61bcad7699912fae703b5c1e9efa44909", kill_on_drop: false }`
[INFO] [stdout] f90fe855c964c514098896c3e2c87bc61bcad7699912fae703b5c1e9efa44909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 821fad910c30fa4123f6c1c79abf7c6f1e4eafccbdbd9d449f3bed01935450d7
[INFO] running `Command { std: "docker" "start" "-a" "821fad910c30fa4123f6c1c79abf7c6f1e4eafccbdbd9d449f3bed01935450d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/variant_counter_derived-afc711ed7d465419)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests variant_counter_derived
[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 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" "821fad910c30fa4123f6c1c79abf7c6f1e4eafccbdbd9d449f3bed01935450d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821fad910c30fa4123f6c1c79abf7c6f1e4eafccbdbd9d449f3bed01935450d7", kill_on_drop: false }`
[INFO] [stdout] 821fad910c30fa4123f6c1c79abf7c6f1e4eafccbdbd9d449f3bed01935450d7