[INFO] cloning repository https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fclassical_and_advanced_data_structures_and_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fclassical_and_advanced_data_structures_and_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dacc7b654670b3f41bac6c2b72fba446960caf38
[INFO] checking leviathan88/classical_and_advanced_data_structures_and_algorithms against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fclassical_and_advanced_data_structures_and_algorithms" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms
[INFO] finished tweaking git repo https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms
[INFO] tweaked toml for git repo https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/leviathan88/classical_and_advanced_data_structures_and_algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd3298d1d69a02f3deee049e2871ed62eb5caa41b181c5b2cce021d9595e41a4
[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" "fd3298d1d69a02f3deee049e2871ed62eb5caa41b181c5b2cce021d9595e41a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd3298d1d69a02f3deee049e2871ed62eb5caa41b181c5b2cce021d9595e41a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd3298d1d69a02f3deee049e2871ed62eb5caa41b181c5b2cce021d9595e41a4", kill_on_drop: false }`
[INFO] [stdout] fd3298d1d69a02f3deee049e2871ed62eb5caa41b181c5b2cce021d9595e41a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] 90b82b896cbe74dec85bf37cb456d8b4364657c8e29f1a53cf666c57bb65464f
[INFO] running `Command { std: "docker" "start" "-a" "90b82b896cbe74dec85bf37cb456d8b4364657c8e29f1a53cf666c57bb65464f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking sorting v0.1.0 (/opt/rustwide/workdir/sorting)
[INFO] [stderr]     Checking classical_and_advanced_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.02s
[INFO] running `Command { std: "docker" "inspect" "90b82b896cbe74dec85bf37cb456d8b4364657c8e29f1a53cf666c57bb65464f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b82b896cbe74dec85bf37cb456d8b4364657c8e29f1a53cf666c57bb65464f", kill_on_drop: false }`
[INFO] [stdout] 90b82b896cbe74dec85bf37cb456d8b4364657c8e29f1a53cf666c57bb65464f