[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#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianbakke%2Fbusy_beaver" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Adrianbakke/busy_beaver on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Adrianbakke/busy_beaver 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e26f4d5638fedc6f1e468bd3bb63e3e4f26e9d027589265867b87559bba7fe62
[INFO] running `Command { std: "docker" "start" "-a" "e26f4d5638fedc6f1e468bd3bb63e3e4f26e9d027589265867b87559bba7fe62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e26f4d5638fedc6f1e468bd3bb63e3e4f26e9d027589265867b87559bba7fe62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26f4d5638fedc6f1e468bd3bb63e3e4f26e9d027589265867b87559bba7fe62", kill_on_drop: false }`
[INFO] [stdout] e26f4d5638fedc6f1e468bd3bb63e3e4f26e9d027589265867b87559bba7fe62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21fa62b6d598bc7a97a93fa3339fa414e701f04d2866c0db9b24181490c69668
[INFO] running `Command { std: "docker" "start" "-a" "21fa62b6d598bc7a97a93fa3339fa414e701f04d2866c0db9b24181490c69668", 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:388:13
[INFO] [stdout]     |
[INFO] [stdout] 388 |     let mut best_action_holder = Stats::default();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_best_action_holder` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[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]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `best_action_holder` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:388:13
[INFO] [stdout]     |
[INFO] [stdout] 388 |     let mut best_action_holder = Stats::default();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_best_action_holder` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[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]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_score` is never used
[INFO] [stdout]    --> src/main.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn highest_score(stats: &Vec<Stats>) -> &Stats {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_action` is never used
[INFO] [stdout]    --> src/main.rs:362:4
[INFO] [stdout]     |
[INFO] [stdout] 362 | fn highest_action(stats: &Vec<Stats>) -> &Stats {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_score` is never used
[INFO] [stdout]    --> src/main.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn highest_score(stats: &Vec<Stats>) -> &Stats {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_action` is never used
[INFO] [stdout]    --> src/main.rs:362:4
[INFO] [stdout]     |
[INFO] [stdout] 362 | fn highest_action(stats: &Vec<Stats>) -> &Stats {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "21fa62b6d598bc7a97a93fa3339fa414e701f04d2866c0db9b24181490c69668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21fa62b6d598bc7a97a93fa3339fa414e701f04d2866c0db9b24181490c69668", kill_on_drop: false }`
[INFO] [stdout] 21fa62b6d598bc7a97a93fa3339fa414e701f04d2866c0db9b24181490c69668
