[INFO] cloning repository https://github.com/qucumbah/ten-armed-bandit-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qucumbah/ten-armed-bandit-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqucumbah%2Ften-armed-bandit-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqucumbah%2Ften-armed-bandit-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e976743dd9cf883253a9dc0a6f15ed4380c88dcb
[INFO] checking qucumbah/ten-armed-bandit-rs against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqucumbah%2Ften-armed-bandit-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/qucumbah/ten-armed-bandit-rs
[INFO] finished tweaking git repo https://github.com/qucumbah/ten-armed-bandit-rs
[INFO] tweaked toml for git repo https://github.com/qucumbah/ten-armed-bandit-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/qucumbah/ten-armed-bandit-rs on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/qucumbah/ten-armed-bandit-rs 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9604e58dcfa11f814f62fc2d5790e3c47f6fe9d8f41cf92be896d36fbe46d22
[INFO] running `Command { std: "docker" "start" "-a" "c9604e58dcfa11f814f62fc2d5790e3c47f6fe9d8f41cf92be896d36fbe46d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9604e58dcfa11f814f62fc2d5790e3c47f6fe9d8f41cf92be896d36fbe46d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9604e58dcfa11f814f62fc2d5790e3c47f6fe9d8f41cf92be896d36fbe46d22", kill_on_drop: false }`
[INFO] [stdout] c9604e58dcfa11f814f62fc2d5790e3c47f6fe9d8f41cf92be896d36fbe46d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195e26e5eb54870c4f2724da69b16f9b2a399ccde6e2ce566ceb5bd1a94b980a
[INFO] running `Command { std: "docker" "start" "-a" "195e26e5eb54870c4f2724da69b16f9b2a399ccde6e2ce566ceb5bd1a94b980a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand_distr v0.4.0
[INFO] [stderr]     Checking ten-armed-bandit-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_rewards` is never used
[INFO] [stdout]  --> src/environments/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Environment {
[INFO] [stdout]   |           ----------- method in this trait
[INFO] [stdout] 5 |     fn run(&mut self, agent: &mut dyn crate::agents::Agent, n_steps: u32);
[INFO] [stdout] 6 |     fn get_rewards(&self) -> &[f32; 10];
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_rewards` is never used
[INFO] [stdout]  --> src/environments/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Environment {
[INFO] [stdout]   |           ----------- method in this trait
[INFO] [stdout] 5 |     fn run(&mut self, agent: &mut dyn crate::agents::Agent, n_steps: u32);
[INFO] [stdout] 6 |     fn get_rewards(&self) -> &[f32; 10];
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "195e26e5eb54870c4f2724da69b16f9b2a399ccde6e2ce566ceb5bd1a94b980a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195e26e5eb54870c4f2724da69b16f9b2a399ccde6e2ce566ceb5bd1a94b980a", kill_on_drop: false }`
[INFO] [stdout] 195e26e5eb54870c4f2724da69b16f9b2a399ccde6e2ce566ceb5bd1a94b980a