[INFO] cloning repository https://github.com/tawashichan/rust_practice [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tawashichan/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Frust_practice"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Frust_practice'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 992c5786d87cf1c4f63638deb3072ca615053dfe [INFO] testing tawashichan/rust_practice against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Frust_practice" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tawashichan/rust_practice on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/tawashichan/rust_practice [INFO] finished tweaking git repo https://github.com/tawashichan/rust_practice [INFO] tweaked toml for git repo https://github.com/tawashichan/rust_practice written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/tawashichan/rust_practice already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 443814e50a37187813f1832be2ae4421acf15a56ca5d5acb4911f63bb9c6cf8f [INFO] running `"docker" "start" "-a" "443814e50a37187813f1832be2ae4421acf15a56ca5d5acb4911f63bb9c6cf8f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling t_lib v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:28:22 [INFO] [stderr] | [INFO] [stderr] 28 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/main.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `to` [INFO] [stderr] --> src/main.rs:51:27 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:72:22 [INFO] [stderr] | [INFO] [stderr] 72 | Some(p) => continue, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:99:18 [INFO] [stderr] | [INFO] [stderr] 99 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:124:18 [INFO] [stderr] | [INFO] [stderr] 124 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bfs` [INFO] [stderr] --> src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn bfs(start: usize, goal: usize, m: Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reachable` [INFO] [stderr] --> src/main.rs:51:4 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dfs` [INFO] [stderr] --> src/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn dfs(start: usize, goal: usize, current: usize, current_path: Vec, m: &Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.77s [INFO] running `"docker" "inspect" "443814e50a37187813f1832be2ae4421acf15a56ca5d5acb4911f63bb9c6cf8f"` [INFO] running `"docker" "rm" "-f" "443814e50a37187813f1832be2ae4421acf15a56ca5d5acb4911f63bb9c6cf8f"` [INFO] [stdout] 443814e50a37187813f1832be2ae4421acf15a56ca5d5acb4911f63bb9c6cf8f [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b069bace4cc47ab5b508d5baa3dffa442a2a023c68a378730ae59d26684baaa0 [INFO] running `"docker" "start" "-a" "b069bace4cc47ab5b508d5baa3dffa442a2a023c68a378730ae59d26684baaa0"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling t_lib v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:28:22 [INFO] [stderr] | [INFO] [stderr] 28 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/main.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `to` [INFO] [stderr] --> src/main.rs:51:27 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:72:22 [INFO] [stderr] | [INFO] [stderr] 72 | Some(p) => continue, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:99:18 [INFO] [stderr] | [INFO] [stderr] 99 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:124:18 [INFO] [stderr] | [INFO] [stderr] 124 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bfs` [INFO] [stderr] --> src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn bfs(start: usize, goal: usize, m: Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reachable` [INFO] [stderr] --> src/main.rs:51:4 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dfs` [INFO] [stderr] --> src/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn dfs(start: usize, goal: usize, current: usize, current_path: Vec, m: &Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `"docker" "inspect" "b069bace4cc47ab5b508d5baa3dffa442a2a023c68a378730ae59d26684baaa0"` [INFO] running `"docker" "rm" "-f" "b069bace4cc47ab5b508d5baa3dffa442a2a023c68a378730ae59d26684baaa0"` [INFO] [stdout] b069bace4cc47ab5b508d5baa3dffa442a2a023c68a378730ae59d26684baaa0 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 701819fb1d8658b380360876425cfdf0312f655445605d74c7e3fc308b4af6dc [INFO] running `"docker" "start" "-a" "701819fb1d8658b380360876425cfdf0312f655445605d74c7e3fc308b4af6dc"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:28:22 [INFO] [stderr] | [INFO] [stderr] 28 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/main.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `to` [INFO] [stderr] --> src/main.rs:51:27 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_to` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:72:22 [INFO] [stderr] | [INFO] [stderr] 72 | Some(p) => continue, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:99:18 [INFO] [stderr] | [INFO] [stderr] 99 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:124:18 [INFO] [stderr] | [INFO] [stderr] 124 | Some(p) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bfs` [INFO] [stderr] --> src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn bfs(start: usize, goal: usize, m: Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reachable` [INFO] [stderr] --> src/main.rs:51:4 [INFO] [stderr] | [INFO] [stderr] 51 | fn reachable(from: &T, to: &T) -> bool { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dfs` [INFO] [stderr] --> src/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn dfs(start: usize, goal: usize, current: usize, current_path: Vec, m: &Vec>) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/t_lib-ac756968114806fe [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "701819fb1d8658b380360876425cfdf0312f655445605d74c7e3fc308b4af6dc"` [INFO] running `"docker" "rm" "-f" "701819fb1d8658b380360876425cfdf0312f655445605d74c7e3fc308b4af6dc"` [INFO] [stdout] 701819fb1d8658b380360876425cfdf0312f655445605d74c7e3fc308b4af6dc