[INFO] fetching crate serde-error 0.1.2...
[INFO] testing serde-error-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate serde-error 0.1.2 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate serde-error 0.1.2 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 serde-error 0.1.2
[INFO] finished tweaking crates.io crate serde-error 0.1.2
[INFO] tweaked toml for crates.io crate serde-error 0.1.2 written to /workspace/builds/worker-73/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 021eeaaedfff6e7d0b4c19e1ee2198d1f5fd304d19ddd254ac2905c4ce510770
[INFO] running `Command { std: "docker" "start" "-a" "021eeaaedfff6e7d0b4c19e1ee2198d1f5fd304d19ddd254ac2905c4ce510770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "021eeaaedfff6e7d0b4c19e1ee2198d1f5fd304d19ddd254ac2905c4ce510770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "021eeaaedfff6e7d0b4c19e1ee2198d1f5fd304d19ddd254ac2905c4ce510770", kill_on_drop: false }`
[INFO] [stdout] 021eeaaedfff6e7d0b4c19e1ee2198d1f5fd304d19ddd254ac2905c4ce510770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] b97cded552bd51636cc6bc982b9788c26c562b1b12df600ca621e5e8a52ab2e9
[INFO] running `Command { std: "docker" "start" "-a" "b97cded552bd51636cc6bc982b9788c26c562b1b12df600ca621e5e8a52ab2e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde-error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.32s
[INFO] running `Command { std: "docker" "inspect" "b97cded552bd51636cc6bc982b9788c26c562b1b12df600ca621e5e8a52ab2e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97cded552bd51636cc6bc982b9788c26c562b1b12df600ca621e5e8a52ab2e9", kill_on_drop: false }`
[INFO] [stdout] b97cded552bd51636cc6bc982b9788c26c562b1b12df600ca621e5e8a52ab2e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 5cda88f2a804de5907d6dfecca51c0f45045b0522e38f0afd541a7e74cb17e2e
[INFO] running `Command { std: "docker" "start" "-a" "5cda88f2a804de5907d6dfecca51c0f45045b0522e38f0afd541a7e74cb17e2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde-error v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "5cda88f2a804de5907d6dfecca51c0f45045b0522e38f0afd541a7e74cb17e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cda88f2a804de5907d6dfecca51c0f45045b0522e38f0afd541a7e74cb17e2e", kill_on_drop: false }`
[INFO] [stdout] 5cda88f2a804de5907d6dfecca51c0f45045b0522e38f0afd541a7e74cb17e2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 66f81f77ceeedfa19a930f20c7ef24a838883d8093966115008fb5fdb3731a53
[INFO] running `Command { std: "docker" "start" "-a" "66f81f77ceeedfa19a930f20c7ef24a838883d8093966115008fb5fdb3731a53", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_error-8bdd9fdce43b0ab3)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde-error
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66f81f77ceeedfa19a930f20c7ef24a838883d8093966115008fb5fdb3731a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f81f77ceeedfa19a930f20c7ef24a838883d8093966115008fb5fdb3731a53", kill_on_drop: false }`
[INFO] [stdout] 66f81f77ceeedfa19a930f20c7ef24a838883d8093966115008fb5fdb3731a53