[INFO] cloning repository https://github.com/Adrianbakke/busy_beaver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Adrianbakke/busy_beaver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianbakke%2Fbusy_beaver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianbakke%2Fbusy_beaver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bc8854b1a80ff928fcf81f39966c74f8eb868fd6 [INFO] checking Adrianbakke/busy_beaver against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianbakke%2Fbusy_beaver" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Adrianbakke/busy_beaver on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Adrianbakke/busy_beaver [INFO] finished tweaking git repo https://github.com/Adrianbakke/busy_beaver [INFO] tweaked toml for git repo https://github.com/Adrianbakke/busy_beaver written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/Adrianbakke/busy_beaver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69d0763e19b473838d449b55d98ba04c8f6415c43f971554edd96555101ad568 [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" "69d0763e19b473838d449b55d98ba04c8f6415c43f971554edd96555101ad568", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69d0763e19b473838d449b55d98ba04c8f6415c43f971554edd96555101ad568", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69d0763e19b473838d449b55d98ba04c8f6415c43f971554edd96555101ad568", kill_on_drop: false }` [INFO] [stdout] 69d0763e19b473838d449b55d98ba04c8f6415c43f971554edd96555101ad568 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] ef5dbc262f6e4a0a403a182aa52054b714d2b341005ce3d2841a6c2dee7b4efc [INFO] running `Command { std: "docker" "start" "-a" "ef5dbc262f6e4a0a403a182aa52054b714d2b341005ce3d2841a6c2dee7b4efc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking busy_beaver_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `best_action_holder` is assigned to, but never used [INFO] [stdout] --> src/main.rs:388:9 [INFO] [stdout] | [INFO] [stdout] 388 | let mut best_action_holder = Stats::default(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_best_action_holder` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `best_action_holder` is never read [INFO] [stdout] --> src/main.rs:393:17 [INFO] [stdout] | [INFO] [stdout] 393 | best_action_holder = stats.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `highest_score` [INFO] [stdout] --> src/main.rs:352:4 [INFO] [stdout] | [INFO] [stdout] 352 | fn highest_score(stats: &Vec) -> &Stats { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `highest_action` [INFO] [stdout] --> src/main.rs:362:4 [INFO] [stdout] | [INFO] [stdout] 362 | fn highest_action(stats: &Vec) -> &Stats { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `best_action_holder` is assigned to, but never used [INFO] [stdout] --> src/main.rs:388:9 [INFO] [stdout] | [INFO] [stdout] 388 | let mut best_action_holder = Stats::default(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_best_action_holder` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `best_action_holder` is never read [INFO] [stdout] --> src/main.rs:393:17 [INFO] [stdout] | [INFO] [stdout] 393 | best_action_holder = stats.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `highest_score` [INFO] [stdout] --> src/main.rs:352:4 [INFO] [stdout] | [INFO] [stdout] 352 | fn highest_score(stats: &Vec) -> &Stats { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `highest_action` [INFO] [stdout] --> src/main.rs:362:4 [INFO] [stdout] | [INFO] [stdout] 362 | fn highest_action(stats: &Vec) -> &Stats { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.64s [INFO] running `Command { std: "docker" "inspect" "ef5dbc262f6e4a0a403a182aa52054b714d2b341005ce3d2841a6c2dee7b4efc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef5dbc262f6e4a0a403a182aa52054b714d2b341005ce3d2841a6c2dee7b4efc", kill_on_drop: false }` [INFO] [stdout] ef5dbc262f6e4a0a403a182aa52054b714d2b341005ce3d2841a6c2dee7b4efc