[INFO] cloning repository https://github.com/codeslewis/Collections_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codeslewis/Collections_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeslewis%2FCollections_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeslewis%2FCollections_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6d50bf0e384c3eb7db4f09b516c122004f5a357
[INFO] checking codeslewis/Collections_Rust against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeslewis%2FCollections_Rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codeslewis/Collections_Rust on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codeslewis/Collections_Rust
[INFO] finished tweaking git repo https://github.com/codeslewis/Collections_Rust
[INFO] tweaked toml for git repo https://github.com/codeslewis/Collections_Rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/codeslewis/Collections_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21f2b6e963c06804ad18039e53db4389a67f02325db4c05c90ffb0df6b8eca0b
[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" "21f2b6e963c06804ad18039e53db4389a67f02325db4c05c90ffb0df6b8eca0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21f2b6e963c06804ad18039e53db4389a67f02325db4c05c90ffb0df6b8eca0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f2b6e963c06804ad18039e53db4389a67f02325db4c05c90ffb0df6b8eca0b", kill_on_drop: false }`
[INFO] [stdout] 21f2b6e963c06804ad18039e53db4389a67f02325db4c05c90ffb0df6b8eca0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ddc2a23a1c9371f39576b23be203a4502d0e85d7ec90c8e82ef925be5efe496
[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" "0ddc2a23a1c9371f39576b23be203a4502d0e85d7ec90c8e82ef925be5efe496", kill_on_drop: false }`
[INFO] [stderr]     Checking collections_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "0ddc2a23a1c9371f39576b23be203a4502d0e85d7ec90c8e82ef925be5efe496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ddc2a23a1c9371f39576b23be203a4502d0e85d7ec90c8e82ef925be5efe496", kill_on_drop: false }`
[INFO] [stdout] 0ddc2a23a1c9371f39576b23be203a4502d0e85d7ec90c8e82ef925be5efe496