[INFO] cloning repository https://github.com/mjbenitez95/rust-collections
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mjbenitez95/rust-collections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-collections", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-collections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40c411529169c31eee9e58cf3828867816de8b2c
[INFO] checking mjbenitez95/rust-collections against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-collections" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mjbenitez95/rust-collections on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mjbenitez95/rust-collections
[INFO] finished tweaking git repo https://github.com/mjbenitez95/rust-collections
[INFO] tweaked toml for git repo https://github.com/mjbenitez95/rust-collections written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mjbenitez95/rust-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] ad44cfc81978a0425fc94b9a6c3d75e36481d198f1107a8735ddd30be62c0929
[INFO] running `Command { std: "docker" "start" "-a" "ad44cfc81978a0425fc94b9a6c3d75e36481d198f1107a8735ddd30be62c0929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad44cfc81978a0425fc94b9a6c3d75e36481d198f1107a8735ddd30be62c0929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad44cfc81978a0425fc94b9a6c3d75e36481d198f1107a8735ddd30be62c0929", kill_on_drop: false }`
[INFO] [stdout] ad44cfc81978a0425fc94b9a6c3d75e36481d198f1107a8735ddd30be62c0929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81815ebd2084c0dc2d6805d1483de95a1949dc3eb4dd6fa6d6002c94c45322d6
[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" "81815ebd2084c0dc2d6805d1483de95a1949dc3eb4dd6fa6d6002c94c45322d6", kill_on_drop: false }`
[INFO] [stderr]     Checking collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "81815ebd2084c0dc2d6805d1483de95a1949dc3eb4dd6fa6d6002c94c45322d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81815ebd2084c0dc2d6805d1483de95a1949dc3eb4dd6fa6d6002c94c45322d6", kill_on_drop: false }`
[INFO] [stdout] 81815ebd2084c0dc2d6805d1483de95a1949dc3eb4dd6fa6d6002c94c45322d6