[INFO] cloning repository https://github.com/ASwitchCase/menu-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ASwitchCase/menu-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FASwitchCase%2Fmenu-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FASwitchCase%2Fmenu-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20e2021bd7d618efc3ab526ebd3a91f7e08d9f2e
[INFO] checking ASwitchCase/menu-system against master#9b81629631b382fd49ee3a20ac47797b1467e52d for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FASwitchCase%2Fmenu-system" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ASwitchCase/menu-system
[INFO] finished tweaking git repo https://github.com/ASwitchCase/menu-system
[INFO] tweaked toml for git repo https://github.com/ASwitchCase/menu-system written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ASwitchCase/menu-system on toolchain 9b81629631b382fd49ee3a20ac47797b1467e52d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ASwitchCase/menu-system already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea3ab2f7359e2b37169f1bd2a06d73b2bcd11ce641dff71c4c2c12afbd9c5071
[INFO] running `Command { std: "docker" "start" "-a" "ea3ab2f7359e2b37169f1bd2a06d73b2bcd11ce641dff71c4c2c12afbd9c5071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea3ab2f7359e2b37169f1bd2a06d73b2bcd11ce641dff71c4c2c12afbd9c5071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea3ab2f7359e2b37169f1bd2a06d73b2bcd11ce641dff71c4c2c12afbd9c5071", kill_on_drop: false }`
[INFO] [stdout] ea3ab2f7359e2b37169f1bd2a06d73b2bcd11ce641dff71c4c2c12afbd9c5071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+9b81629631b382fd49ee3a20ac47797b1467e52d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2581ece93780156f7c543a3db5eb3d2e080701cdef727a77d6e3a05f4ac0ae66
[INFO] running `Command { std: "docker" "start" "-a" "2581ece93780156f7c543a3db5eb3d2e080701cdef727a77d6e3a05f4ac0ae66", kill_on_drop: false }`
[INFO] [stderr]     Checking menu-system0-0-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `back` is never used
[INFO] [stdout]   --> src/menu_system.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl MenuTree {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn back(&mut self) -> MenuNode {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `back` is never used
[INFO] [stdout]   --> src/menu_system.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl MenuTree {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn back(&mut self) -> MenuNode {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2581ece93780156f7c543a3db5eb3d2e080701cdef727a77d6e3a05f4ac0ae66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2581ece93780156f7c543a3db5eb3d2e080701cdef727a77d6e3a05f4ac0ae66", kill_on_drop: false }`
[INFO] [stdout] 2581ece93780156f7c543a3db5eb3d2e080701cdef727a77d6e3a05f4ac0ae66
