[INFO] fetching crate reversi 0.1.0... [INFO] testing reversi-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] extracting crate reversi 0.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate reversi 0.1.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate reversi 0.1.0 [INFO] finished tweaking crates.io crate reversi 0.1.0 [INFO] tweaked toml for crates.io crate reversi 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate crates.io crate reversi 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libmath v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79d9cdbbf13dc305e6bbf2d1e9685b3736d860cb333795b5feb458896d72e98b [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" "79d9cdbbf13dc305e6bbf2d1e9685b3736d860cb333795b5feb458896d72e98b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79d9cdbbf13dc305e6bbf2d1e9685b3736d860cb333795b5feb458896d72e98b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79d9cdbbf13dc305e6bbf2d1e9685b3736d860cb333795b5feb458896d72e98b", kill_on_drop: false }` [INFO] [stdout] 79d9cdbbf13dc305e6bbf2d1e9685b3736d860cb333795b5feb458896d72e98b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--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] c29a1494f8459f3ac050baa5778f24899d13c1d38c38cc997d7b365559984574 [INFO] running `Command { std: "docker" "start" "-a" "c29a1494f8459f3ac050baa5778f24899d13c1d38c38cc997d7b365559984574", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling libmath v0.2.1 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.40s [INFO] running `Command { std: "docker" "inspect" "c29a1494f8459f3ac050baa5778f24899d13c1d38c38cc997d7b365559984574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c29a1494f8459f3ac050baa5778f24899d13c1d38c38cc997d7b365559984574", kill_on_drop: false }` [INFO] [stdout] c29a1494f8459f3ac050baa5778f24899d13c1d38c38cc997d7b365559984574 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--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] 5e5b08c067e71ba884fc5a36f01c83bc8a6a000dc692fb82324285cd04c76430 [INFO] running `Command { std: "docker" "start" "-a" "5e5b08c067e71ba884fc5a36f01c83bc8a6a000dc692fb82324285cd04c76430", kill_on_drop: false }` [INFO] [stderr] Compiling reversi v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `prev_player_score` [INFO] [stdout] --> src/main.rs:841:10 [INFO] [stdout] | [INFO] [stdout] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `player_score` [INFO] [stdout] --> src/main.rs:857:14 [INFO] [stdout] | [INFO] [stdout] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `difficulty` [INFO] [stdout] --> src/main.rs:886:13 [INFO] [stdout] | [INFO] [stdout] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `debug` [INFO] [stdout] --> src/main.rs:128:21 [INFO] [stdout] | [INFO] [stdout] 128 | fn print(&self, debug: bool) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 181 | let mut u: u8 = 1; [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: value assigned to `u` is never read [INFO] [stdout] --> src/main.rs:320:17 [INFO] [stdout] | [INFO] [stdout] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:715:34 [INFO] [stdout] | [INFO] [stdout] 715 | if !debug { print!("."); stdout().flush(); } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `Command { std: "docker" "inspect" "5e5b08c067e71ba884fc5a36f01c83bc8a6a000dc692fb82324285cd04c76430", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e5b08c067e71ba884fc5a36f01c83bc8a6a000dc692fb82324285cd04c76430", kill_on_drop: false }` [INFO] [stdout] 5e5b08c067e71ba884fc5a36f01c83bc8a6a000dc692fb82324285cd04c76430 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] 91889dc98e8ab835a209bbbcc57b7f338ff870dc4081c49209cddb9856aa2ac2 [INFO] running `Command { std: "docker" "start" "-a" "91889dc98e8ab835a209bbbcc57b7f338ff870dc4081c49209cddb9856aa2ac2", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `prev_player_score` [INFO] [stderr] --> src/main.rs:841:10 [INFO] [stderr] | [INFO] [stderr] 841 | let (prev_player_score, prev_cpu_score): (u8, u8) = b.get_score(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_player_score` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `player_score` [INFO] [stderr] --> src/main.rs:857:14 [INFO] [stderr] | [INFO] [stderr] 857 | let (player_score, cpu_score): (u8, u8) = new_board.get_score(); [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_player_score` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `difficulty` [INFO] [stderr] --> src/main.rs:886:13 [INFO] [stderr] | [INFO] [stderr] 886 | let difficulty: String = match cpu_diff.trim().to_string().as_str() { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_difficulty` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `debug` [INFO] [stderr] --> src/main.rs:128:21 [INFO] [stderr] | [INFO] [stderr] 128 | fn print(&self, debug: bool) { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_debug` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `u` is never read [INFO] [stderr] --> src/main.rs:181:17 [INFO] [stderr] | [INFO] [stderr] 181 | let mut u: u8 = 1; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `u` is never read [INFO] [stderr] --> src/main.rs:320:17 [INFO] [stderr] | [INFO] [stderr] 320 | let mut u: u8 = 1; // used as the iter for get_new_pos() [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:715:34 [INFO] [stderr] | [INFO] [stderr] 715 | if !debug { print!("."); stdout().flush(); } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/reversi-8fa593e9fd394656) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "91889dc98e8ab835a209bbbcc57b7f338ff870dc4081c49209cddb9856aa2ac2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91889dc98e8ab835a209bbbcc57b7f338ff870dc4081c49209cddb9856aa2ac2", kill_on_drop: false }` [INFO] [stdout] 91889dc98e8ab835a209bbbcc57b7f338ff870dc4081c49209cddb9856aa2ac2