[INFO] fetching crate imap-proto 0.12.0...
[INFO] checking imap-proto-0.12.0 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate imap-proto 0.12.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate imap-proto 0.12.0 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imap-proto 0.12.0
[INFO] finished tweaking crates.io crate imap-proto 0.12.0
[INFO] tweaked toml for crates.io crate imap-proto 0.12.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate imap-proto 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b3a2c3f46e83305112d1ec30c880def9eb3744d58038daf8ad7ada0e0a2fa9a
[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" "6b3a2c3f46e83305112d1ec30c880def9eb3744d58038daf8ad7ada0e0a2fa9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3a2c3f46e83305112d1ec30c880def9eb3744d58038daf8ad7ada0e0a2fa9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3a2c3f46e83305112d1ec30c880def9eb3744d58038daf8ad7ada0e0a2fa9a", kill_on_drop: false }`
[INFO] [stdout] 6b3a2c3f46e83305112d1ec30c880def9eb3744d58038daf8ad7ada0e0a2fa9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--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] f279ccd6e9b8f2ea250b6af7d15b2be2d9622a65d4f95558a43e713401fadb26
[INFO] running `Command { std: "docker" "start" "-a" "f279ccd6e9b8f2ea250b6af7d15b2be2d9622a65d4f95558a43e713401fadb26", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking assert_matches v1.4.0
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]     Checking imap-proto v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.08s
[INFO] running `Command { std: "docker" "inspect" "f279ccd6e9b8f2ea250b6af7d15b2be2d9622a65d4f95558a43e713401fadb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f279ccd6e9b8f2ea250b6af7d15b2be2d9622a65d4f95558a43e713401fadb26", kill_on_drop: false }`
[INFO] [stdout] f279ccd6e9b8f2ea250b6af7d15b2be2d9622a65d4f95558a43e713401fadb26