[INFO] cloning repository https://github.com/selvacodes/rust-data-structures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/selvacodes/rust-data-structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselvacodes%2Frust-data-structures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselvacodes%2Frust-data-structures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 671acf71da84d766be93c0bc132e819871c299f1
[INFO] checking selvacodes/rust-data-structures against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fselvacodes%2Frust-data-structures" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/selvacodes/rust-data-structures on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/selvacodes/rust-data-structures
[INFO] finished tweaking git repo https://github.com/selvacodes/rust-data-structures
[INFO] tweaked toml for git repo https://github.com/selvacodes/rust-data-structures written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/selvacodes/rust-data-structures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c50207629a8d77469175d42399ca5601e6fd703423cdd9a14da6f58561d68aed
[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" "c50207629a8d77469175d42399ca5601e6fd703423cdd9a14da6f58561d68aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c50207629a8d77469175d42399ca5601e6fd703423cdd9a14da6f58561d68aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c50207629a8d77469175d42399ca5601e6fd703423cdd9a14da6f58561d68aed", kill_on_drop: false }`
[INFO] [stdout] c50207629a8d77469175d42399ca5601e6fd703423cdd9a14da6f58561d68aed
[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=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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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] 556de50a03884f61e6b8877424d731a2a6a270ab77f364d06f01d8064017395c
[INFO] running `Command { std: "docker" "start" "-a" "556de50a03884f61e6b8877424d731a2a6a270ab77f364d06f01d8064017395c", kill_on_drop: false }`
[INFO] [stderr]     Checking lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]   --> src/second/mod.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl List {
[INFO] [stdout]    |           - this opening brace...
[INFO] [stdout] ...
[INFO] [stdout] 33 |     }
[INFO] [stdout]    |     - ...matches this closing brace
[INFO] [stdout] 34 | }
[INFO] [stdout]    | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lists`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]   --> src/second/mod.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl List {
[INFO] [stdout]    |           - this opening brace...
[INFO] [stdout] ...
[INFO] [stdout] 33 |     }
[INFO] [stdout]    |     - ...matches this closing brace
[INFO] [stdout] 34 | }
[INFO] [stdout]    | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "556de50a03884f61e6b8877424d731a2a6a270ab77f364d06f01d8064017395c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556de50a03884f61e6b8877424d731a2a6a270ab77f364d06f01d8064017395c", kill_on_drop: false }`
[INFO] [stdout] 556de50a03884f61e6b8877424d731a2a6a270ab77f364d06f01d8064017395c