[INFO] fetching crate main_error 0.1.2...
[INFO] testing main_error-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate main_error 0.1.2 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate main_error 0.1.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate main_error 0.1.2
[INFO] finished tweaking crates.io crate main_error 0.1.2
[INFO] tweaked toml for crates.io crate main_error 0.1.2 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate main_error 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71d58f691197766d1e5b4b03338d3568d4c4ae1bdabdf69de3cd55693f21320c
[INFO] running `Command { std: "docker" "start" "-a" "71d58f691197766d1e5b4b03338d3568d4c4ae1bdabdf69de3cd55693f21320c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d58f691197766d1e5b4b03338d3568d4c4ae1bdabdf69de3cd55693f21320c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d58f691197766d1e5b4b03338d3568d4c4ae1bdabdf69de3cd55693f21320c", kill_on_drop: false }`
[INFO] [stdout] 71d58f691197766d1e5b4b03338d3568d4c4ae1bdabdf69de3cd55693f21320c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d157f2a0334abaaf41051bf90b132a7b5253d708c616ac8fcb52bbae9533a022
[INFO] running `Command { std: "docker" "start" "-a" "d157f2a0334abaaf41051bf90b132a7b5253d708c616ac8fcb52bbae9533a022", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling main_error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "d157f2a0334abaaf41051bf90b132a7b5253d708c616ac8fcb52bbae9533a022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d157f2a0334abaaf41051bf90b132a7b5253d708c616ac8fcb52bbae9533a022", kill_on_drop: false }`
[INFO] [stdout] d157f2a0334abaaf41051bf90b132a7b5253d708c616ac8fcb52bbae9533a022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fd88dad8ab97246be3219d3e7e52472d2fc32b4d26d6189a566c85e9c2e2871
[INFO] running `Command { std: "docker" "start" "-a" "4fd88dad8ab97246be3219d3e7e52472d2fc32b4d26d6189a566c85e9c2e2871", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling main_error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "4fd88dad8ab97246be3219d3e7e52472d2fc32b4d26d6189a566c85e9c2e2871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd88dad8ab97246be3219d3e7e52472d2fc32b4d26d6189a566c85e9c2e2871", kill_on_drop: false }`
[INFO] [stdout] 4fd88dad8ab97246be3219d3e7e52472d2fc32b4d26d6189a566c85e9c2e2871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7cd92847c003ed6b7b2d101e41b4b0a5bf270c342d3aaf3f3c4afc46535e2f5f
[INFO] running `Command { std: "docker" "start" "-a" "7cd92847c003ed6b7b2d101e41b4b0a5bf270c342d3aaf3f3c4afc46535e2f5f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main_error-79f05f44f5731d67)
[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] [stderr]    Doc-tests main_error
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - MainError (line 119) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - MainError (line 105) ... ok
[INFO] [stdout] test src/lib.rs - MainError (line 111) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7cd92847c003ed6b7b2d101e41b4b0a5bf270c342d3aaf3f3c4afc46535e2f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd92847c003ed6b7b2d101e41b4b0a5bf270c342d3aaf3f3c4afc46535e2f5f", kill_on_drop: false }`
[INFO] [stdout] 7cd92847c003ed6b7b2d101e41b4b0a5bf270c342d3aaf3f3c4afc46535e2f5f