[INFO] fetching crate error-gen 0.1.0...
[INFO] testing error-gen-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate error-gen 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate error-gen 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b26e5797bfeb5e47c9e866d8defb50f94213e2b039f43f21c5a62a4a0c4e0d4e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b26e5797bfeb5e47c9e866d8defb50f94213e2b039f43f21c5a62a4a0c4e0d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b26e5797bfeb5e47c9e866d8defb50f94213e2b039f43f21c5a62a4a0c4e0d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26e5797bfeb5e47c9e866d8defb50f94213e2b039f43f21c5a62a4a0c4e0d4e", kill_on_drop: false }`
[INFO] [stdout] b26e5797bfeb5e47c9e866d8defb50f94213e2b039f43f21c5a62a4a0c4e0d4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81d9ef8095ff25575ff2373dc00db4e9ae3ca893c7e0419ad53cfd90a3db8c4b
[INFO] running `Command { std: "docker" "start" "-a" "81d9ef8095ff25575ff2373dc00db4e9ae3ca893c7e0419ad53cfd90a3db8c4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "81d9ef8095ff25575ff2373dc00db4e9ae3ca893c7e0419ad53cfd90a3db8c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d9ef8095ff25575ff2373dc00db4e9ae3ca893c7e0419ad53cfd90a3db8c4b", kill_on_drop: false }`
[INFO] [stdout] 81d9ef8095ff25575ff2373dc00db4e9ae3ca893c7e0419ad53cfd90a3db8c4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af7df5d881c918b4fa71d80fde2e74463c860cc0d1665cb0aa496d7cfe422566
[INFO] running `Command { std: "docker" "start" "-a" "af7df5d881c918b4fa71d80fde2e74463c860cc0d1665cb0aa496d7cfe422566", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "af7df5d881c918b4fa71d80fde2e74463c860cc0d1665cb0aa496d7cfe422566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7df5d881c918b4fa71d80fde2e74463c860cc0d1665cb0aa496d7cfe422566", kill_on_drop: false }`
[INFO] [stdout] af7df5d881c918b4fa71d80fde2e74463c860cc0d1665cb0aa496d7cfe422566
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96d56150790bba1f92fa8d8737b7cbf2a6368bd9d446cfe84781779fdd8f3aad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "96d56150790bba1f92fa8d8737b7cbf2a6368bd9d446cfe84781779fdd8f3aad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/error_gen-92002797cd1d7ace
[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" "96d56150790bba1f92fa8d8737b7cbf2a6368bd9d446cfe84781779fdd8f3aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96d56150790bba1f92fa8d8737b7cbf2a6368bd9d446cfe84781779fdd8f3aad", kill_on_drop: false }`
[INFO] [stdout] 96d56150790bba1f92fa8d8737b7cbf2a6368bd9d446cfe84781779fdd8f3aad