[INFO] cloning repository https://github.com/CaryWillard/TowerOfHanoi [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CaryWillard/TowerOfHanoi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryWillard%2FTowerOfHanoi", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryWillard%2FTowerOfHanoi'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b58fc49f22ee80a5bc957191e4b5572a3385e8f6 [INFO] testing CaryWillard/TowerOfHanoi against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryWillard%2FTowerOfHanoi" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CaryWillard/TowerOfHanoi on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CaryWillard/TowerOfHanoi [INFO] finished tweaking git repo https://github.com/CaryWillard/TowerOfHanoi [INFO] tweaked toml for git repo https://github.com/CaryWillard/TowerOfHanoi written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/CaryWillard/TowerOfHanoi already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dcc8521e89d99551d2d2096196716895615c13aaba6645f7cc0812886defb73a [INFO] running `Command { std: "docker" "start" "-a" "dcc8521e89d99551d2d2096196716895615c13aaba6645f7cc0812886defb73a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dcc8521e89d99551d2d2096196716895615c13aaba6645f7cc0812886defb73a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dcc8521e89d99551d2d2096196716895615c13aaba6645f7cc0812886defb73a", kill_on_drop: false }` [INFO] [stdout] dcc8521e89d99551d2d2096196716895615c13aaba6645f7cc0812886defb73a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cf16658017bfaf02bc945002e017698d9d6cc30ffcdc9a650bf23cc32466ae77 [INFO] running `Command { std: "docker" "start" "-a" "cf16658017bfaf02bc945002e017698d9d6cc30ffcdc9a650bf23cc32466ae77", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling tower_of_hanoi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `ring` [INFO] [stdout] --> src/main.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | ring: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `HanoiMove` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/main.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(test)] [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:48:20 [INFO] [stdout] | [INFO] [stdout] 48 | panic!(format!("Cannot move from {:?} to {:?} with state {:?}", mv.from, mv.to, &self.towers)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the panic!() macro supports formatting, so there's no need for the format!() macro here [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 48 - panic!(format!("Cannot move from {:?} to {:?} with state {:?}", mv.from, mv.to, &self.towers)); [INFO] [stdout] 48 + panic!("Cannot move from {:?} to {:?} with state {:?}", mv.from, mv.to, &self.towers); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tower_of_hanoi` due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "cf16658017bfaf02bc945002e017698d9d6cc30ffcdc9a650bf23cc32466ae77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf16658017bfaf02bc945002e017698d9d6cc30ffcdc9a650bf23cc32466ae77", kill_on_drop: false }` [INFO] [stdout] cf16658017bfaf02bc945002e017698d9d6cc30ffcdc9a650bf23cc32466ae77