[INFO] fetching crate er 0.2.1...
[INFO] testing er-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate er 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate er 0.2.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate er 0.2.1
[INFO] finished tweaking crates.io crate er 0.2.1
[INFO] tweaked toml for crates.io crate er 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9648c0d75c45791cf6194785a170acfc1db503d3be2c06b55fc0030b1375932
[INFO] running `Command { std: "docker" "start" "-a" "e9648c0d75c45791cf6194785a170acfc1db503d3be2c06b55fc0030b1375932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9648c0d75c45791cf6194785a170acfc1db503d3be2c06b55fc0030b1375932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9648c0d75c45791cf6194785a170acfc1db503d3be2c06b55fc0030b1375932", kill_on_drop: false }`
[INFO] [stdout] e9648c0d75c45791cf6194785a170acfc1db503d3be2c06b55fc0030b1375932
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0508a56377f4832e016ca367d068bd30e17d449e9855ffe49ec58ea95785cc7a
[INFO] running `Command { std: "docker" "start" "-a" "0508a56377f4832e016ca367d068bd30e17d449e9855ffe49ec58ea95785cc7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling er v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0508a56377f4832e016ca367d068bd30e17d449e9855ffe49ec58ea95785cc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0508a56377f4832e016ca367d068bd30e17d449e9855ffe49ec58ea95785cc7a", kill_on_drop: false }`
[INFO] [stdout] 0508a56377f4832e016ca367d068bd30e17d449e9855ffe49ec58ea95785cc7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f0fc03416a8e37cb1e98152c6ce10a05967cc3c4289ec521405c12a879f3a9a
[INFO] running `Command { std: "docker" "start" "-a" "1f0fc03416a8e37cb1e98152c6ce10a05967cc3c4289ec521405c12a879f3a9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling er v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "1f0fc03416a8e37cb1e98152c6ce10a05967cc3c4289ec521405c12a879f3a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0fc03416a8e37cb1e98152c6ce10a05967cc3c4289ec521405c12a879f3a9a", kill_on_drop: false }`
[INFO] [stdout] 1f0fc03416a8e37cb1e98152c6ce10a05967cc3c4289ec521405c12a879f3a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7948d7f9a263bcf1159caa4b26c61b168be949281806d17e9da94d0a58576c8
[INFO] running `Command { std: "docker" "start" "-a" "d7948d7f9a263bcf1159caa4b26c61b168be949281806d17e9da94d0a58576c8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/error-172cd8cf2590699d)
[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
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Error::source (line 30) ... ok
[INFO] [stdout] test src/lib.rs - Error::description (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7948d7f9a263bcf1159caa4b26c61b168be949281806d17e9da94d0a58576c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7948d7f9a263bcf1159caa4b26c61b168be949281806d17e9da94d0a58576c8", kill_on_drop: false }`
[INFO] [stdout] d7948d7f9a263bcf1159caa4b26c61b168be949281806d17e9da94d0a58576c8