[INFO] fetching crate dumper 0.1.0...
[INFO] testing dumper-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dumper 0.1.0 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate dumper 0.1.0 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 dumper 0.1.0
[INFO] finished tweaking crates.io crate dumper 0.1.0
[INFO] tweaked toml for crates.io crate dumper 0.1.0 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate crates.io crate dumper 0.1.0 already has a lockfile, it will not be regenerated
[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-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] e32391efeecaf019a55132049bc607073028644919ccadb24ccda551cd3c1ba8
[INFO] running `Command { std: "docker" "start" "-a" "e32391efeecaf019a55132049bc607073028644919ccadb24ccda551cd3c1ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e32391efeecaf019a55132049bc607073028644919ccadb24ccda551cd3c1ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32391efeecaf019a55132049bc607073028644919ccadb24ccda551cd3c1ba8", kill_on_drop: false }`
[INFO] [stdout] e32391efeecaf019a55132049bc607073028644919ccadb24ccda551cd3c1ba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 64deeb21f7034fdf2d3bc3f4198e3c432b85e515266e8b177cb38627e91da409
[INFO] running `Command { std: "docker" "start" "-a" "64deeb21f7034fdf2d3bc3f4198e3c432b85e515266e8b177cb38627e91da409", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dumper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "64deeb21f7034fdf2d3bc3f4198e3c432b85e515266e8b177cb38627e91da409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64deeb21f7034fdf2d3bc3f4198e3c432b85e515266e8b177cb38627e91da409", kill_on_drop: false }`
[INFO] [stdout] 64deeb21f7034fdf2d3bc3f4198e3c432b85e515266e8b177cb38627e91da409
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] d9eb3af60cc11912bb8b3111827b3aa3f73948f239fc02212629629f2c846669
[INFO] running `Command { std: "docker" "start" "-a" "d9eb3af60cc11912bb8b3111827b3aa3f73948f239fc02212629629f2c846669", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dumper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "d9eb3af60cc11912bb8b3111827b3aa3f73948f239fc02212629629f2c846669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9eb3af60cc11912bb8b3111827b3aa3f73948f239fc02212629629f2c846669", kill_on_drop: false }`
[INFO] [stdout] d9eb3af60cc11912bb8b3111827b3aa3f73948f239fc02212629629f2c846669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 9f14e9299271c3109b23cf453ac3b9c2c099c893dcd23607049b31658ef93a47
[INFO] running `Command { std: "docker" "start" "-a" "9f14e9299271c3109b23cf453ac3b9c2c099c893dcd23607049b31658ef93a47", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dumper-a9ef79379d12c976)
[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" "9f14e9299271c3109b23cf453ac3b9c2c099c893dcd23607049b31658ef93a47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f14e9299271c3109b23cf453ac3b9c2c099c893dcd23607049b31658ef93a47", kill_on_drop: false }`
[INFO] [stdout] 9f14e9299271c3109b23cf453ac3b9c2c099c893dcd23607049b31658ef93a47