[INFO] fetching crate coerce-rs 0.0.0...
[INFO] testing coerce-rs-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate coerce-rs 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate coerce-rs 0.0.0 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 coerce-rs 0.0.0
[INFO] finished tweaking crates.io crate coerce-rs 0.0.0
[INFO] tweaked toml for crates.io crate coerce-rs 0.0.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 264e4c4b59f2bc65d3a8daaf73d1c8a15d5b1f50cb8fb6a8af656dd26cfa0b77
[INFO] running `Command { std: "docker" "start" "-a" "264e4c4b59f2bc65d3a8daaf73d1c8a15d5b1f50cb8fb6a8af656dd26cfa0b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "264e4c4b59f2bc65d3a8daaf73d1c8a15d5b1f50cb8fb6a8af656dd26cfa0b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264e4c4b59f2bc65d3a8daaf73d1c8a15d5b1f50cb8fb6a8af656dd26cfa0b77", kill_on_drop: false }`
[INFO] [stdout] 264e4c4b59f2bc65d3a8daaf73d1c8a15d5b1f50cb8fb6a8af656dd26cfa0b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] d53fd5aca2e59f6c76aed9d2f322a3642b70e7d9529fc3018e71d40d5c2de860
[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" "d53fd5aca2e59f6c76aed9d2f322a3642b70e7d9529fc3018e71d40d5c2de860", kill_on_drop: false }`
[INFO] [stderr]    Compiling coerce-rs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "d53fd5aca2e59f6c76aed9d2f322a3642b70e7d9529fc3018e71d40d5c2de860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d53fd5aca2e59f6c76aed9d2f322a3642b70e7d9529fc3018e71d40d5c2de860", kill_on_drop: false }`
[INFO] [stdout] d53fd5aca2e59f6c76aed9d2f322a3642b70e7d9529fc3018e71d40d5c2de860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a2b9e0350ae1a5f630ff13e6c0840d32a7ccabf86a76f052124489307ed50230
[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" "a2b9e0350ae1a5f630ff13e6c0840d32a7ccabf86a76f052124489307ed50230", kill_on_drop: false }`
[INFO] [stderr]    Compiling coerce-rs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "a2b9e0350ae1a5f630ff13e6c0840d32a7ccabf86a76f052124489307ed50230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b9e0350ae1a5f630ff13e6c0840d32a7ccabf86a76f052124489307ed50230", kill_on_drop: false }`
[INFO] [stdout] a2b9e0350ae1a5f630ff13e6c0840d32a7ccabf86a76f052124489307ed50230
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0db22cb57e881ff5d9668555baa9378bbf83abd36d56285e1d61f77df3d8678
[INFO] running `Command { std: "docker" "start" "-a" "e0db22cb57e881ff5d9668555baa9378bbf83abd36d56285e1d61f77df3d8678", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/coerce_rs-6cf9c6286cf04ca0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests coerce-rs
[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] [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" "e0db22cb57e881ff5d9668555baa9378bbf83abd36d56285e1d61f77df3d8678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0db22cb57e881ff5d9668555baa9378bbf83abd36d56285e1d61f77df3d8678", kill_on_drop: false }`
[INFO] [stdout] e0db22cb57e881ff5d9668555baa9378bbf83abd36d56285e1d61f77df3d8678