[INFO] fetching crate error-gen 0.1.0...
[INFO] testing error-gen-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate error-gen 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate error-gen 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 error-gen 0.1.0
[INFO] finished tweaking crates.io crate error-gen 0.1.0
[INFO] tweaked toml for crates.io crate error-gen 0.1.0 written to /workspace/builds/worker-14/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 23835f6c541e1d360b709cd4241c378e4b4909b98da572a54b01a173ceb8b6db
[INFO] running `Command { std: "docker" "start" "-a" "23835f6c541e1d360b709cd4241c378e4b4909b98da572a54b01a173ceb8b6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23835f6c541e1d360b709cd4241c378e4b4909b98da572a54b01a173ceb8b6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23835f6c541e1d360b709cd4241c378e4b4909b98da572a54b01a173ceb8b6db", kill_on_drop: false }`
[INFO] [stdout] 23835f6c541e1d360b709cd4241c378e4b4909b98da572a54b01a173ceb8b6db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] dab56c3d9c278995b71572d29e3f744dfebe77c888f79d5a5e89a82114b1270c
[INFO] running `Command { std: "docker" "start" "-a" "dab56c3d9c278995b71572d29e3f744dfebe77c888f79d5a5e89a82114b1270c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling error-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "dab56c3d9c278995b71572d29e3f744dfebe77c888f79d5a5e89a82114b1270c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab56c3d9c278995b71572d29e3f744dfebe77c888f79d5a5e89a82114b1270c", kill_on_drop: false }`
[INFO] [stdout] dab56c3d9c278995b71572d29e3f744dfebe77c888f79d5a5e89a82114b1270c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 89db5f2a6c5dd226e5faff9cbc38fb2b921e2eeb658ff0c5524d5295d056ca3e
[INFO] running `Command { std: "docker" "start" "-a" "89db5f2a6c5dd226e5faff9cbc38fb2b921e2eeb658ff0c5524d5295d056ca3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "89db5f2a6c5dd226e5faff9cbc38fb2b921e2eeb658ff0c5524d5295d056ca3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89db5f2a6c5dd226e5faff9cbc38fb2b921e2eeb658ff0c5524d5295d056ca3e", kill_on_drop: false }`
[INFO] [stdout] 89db5f2a6c5dd226e5faff9cbc38fb2b921e2eeb658ff0c5524d5295d056ca3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 4951ce6fea72ae1ad3b234ea519111f1ccdf903663e2178404c821370ba6644d
[INFO] running `Command { std: "docker" "start" "-a" "4951ce6fea72ae1ad3b234ea519111f1ccdf903663e2178404c821370ba6644d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/error_gen-7f0f014d75e72e10)
[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 error-gen
[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" "4951ce6fea72ae1ad3b234ea519111f1ccdf903663e2178404c821370ba6644d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4951ce6fea72ae1ad3b234ea519111f1ccdf903663e2178404c821370ba6644d", kill_on_drop: false }`
[INFO] [stdout] 4951ce6fea72ae1ad3b234ea519111f1ccdf903663e2178404c821370ba6644d