[INFO] cloning repository https://github.com/jclmnop/dining-philosophers-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jclmnop/dining-philosophers-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclmnop%2Fdining-philosophers-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclmnop%2Fdining-philosophers-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15190c0bb159002116aff700c3438542213fbd8f
[INFO] checking jclmnop/dining-philosophers-rust against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclmnop%2Fdining-philosophers-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jclmnop/dining-philosophers-rust
[INFO] finished tweaking git repo https://github.com/jclmnop/dining-philosophers-rust
[INFO] tweaked toml for git repo https://github.com/jclmnop/dining-philosophers-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jclmnop/dining-philosophers-rust on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jclmnop/dining-philosophers-rust 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47c0a2d1857e35ecd2305ef3720b108aa619f9cff84c1723ab7fc40717b306d2
[INFO] running `Command { std: "docker" "start" "-a" "47c0a2d1857e35ecd2305ef3720b108aa619f9cff84c1723ab7fc40717b306d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47c0a2d1857e35ecd2305ef3720b108aa619f9cff84c1723ab7fc40717b306d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c0a2d1857e35ecd2305ef3720b108aa619f9cff84c1723ab7fc40717b306d2", kill_on_drop: false }`
[INFO] [stdout] 47c0a2d1857e35ecd2305ef3720b108aa619f9cff84c1723ab7fc40717b306d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d869895ec30b361a22d14fcb3f22b3779b8196470263e57b83161f14b7425ce
[INFO] running `Command { std: "docker" "start" "-a" "6d869895ec30b361a22d14fcb3f22b3779b8196470263e57b83161f14b7425ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dining_philosophers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/sequential.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/sequential.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]  --> src/semaphores.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |             ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `killswitch`
[INFO] [stdout]  --> src/semaphores.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_killswitch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random`
[INFO] [stdout]  --> src/semaphores.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |                                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_random`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]  --> src/semaphores.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |             ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `killswitch`
[INFO] [stdout]  --> src/semaphores.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_killswitch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random`
[INFO] [stdout]  --> src/semaphores.rs:9:64
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn main(tx: Sender<StateMsg>, killswitch: Arc<AtomicBool>, random: bool) {
[INFO] [stdout]   |                                                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_random`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "6d869895ec30b361a22d14fcb3f22b3779b8196470263e57b83161f14b7425ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d869895ec30b361a22d14fcb3f22b3779b8196470263e57b83161f14b7425ce", kill_on_drop: false }`
[INFO] [stdout] 6d869895ec30b361a22d14fcb3f22b3779b8196470263e57b83161f14b7425ce