[INFO] cloning repository https://github.com/huwwynnjones/cola_queue [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huwwynnjones/cola_queue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fcola_queue", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fcola_queue'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9ff8758dddeef22a77eaccecf1c9215d658d719 [INFO] testing huwwynnjones/cola_queue against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fcola_queue" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/huwwynnjones/cola_queue on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/huwwynnjones/cola_queue [INFO] finished tweaking git repo https://github.com/huwwynnjones/cola_queue [INFO] tweaked toml for git repo https://github.com/huwwynnjones/cola_queue written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/huwwynnjones/cola_queue already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] b3086c093026278ae71f1652b9dbf685851df4f0c69d17e01ded5b4621c2d5b5 [INFO] running `Command { std: "docker" "start" "-a" "b3086c093026278ae71f1652b9dbf685851df4f0c69d17e01ded5b4621c2d5b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b3086c093026278ae71f1652b9dbf685851df4f0c69d17e01ded5b4621c2d5b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3086c093026278ae71f1652b9dbf685851df4f0c69d17e01ded5b4621c2d5b5", kill_on_drop: false }` [INFO] [stdout] b3086c093026278ae71f1652b9dbf685851df4f0c69d17e01ded5b4621c2d5b5 [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aea569495d1f30dce681e15b1270216ed09b33b141e735344c05f67b9ed22066 [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" "aea569495d1f30dce681e15b1270216ed09b33b141e735344c05f67b9ed22066", kill_on_drop: false }` [INFO] [stderr] Compiling double_cola v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Sheldon` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Sheldon, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Leonard` [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Leonard, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Rajesh` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Rajesh, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Howard` [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Howard, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Names` [INFO] [stdout] --> src/lib.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | type Names = Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `who_is_next` [INFO] [stdout] --> src/lib.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn who_is_next(names: &Names, n: usize) -> Name { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `within_position_range` [INFO] [stdout] --> src/lib.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn within_position_range( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "aea569495d1f30dce681e15b1270216ed09b33b141e735344c05f67b9ed22066", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aea569495d1f30dce681e15b1270216ed09b33b141e735344c05f67b9ed22066", kill_on_drop: false }` [INFO] [stdout] aea569495d1f30dce681e15b1270216ed09b33b141e735344c05f67b9ed22066 [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5e3dc5b3ef17fb1eb9ed0a76e3ead1fc8df7bfc90b7c50c2cb40b87a217821b [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" "c5e3dc5b3ef17fb1eb9ed0a76e3ead1fc8df7bfc90b7c50c2cb40b87a217821b", kill_on_drop: false }` [INFO] [stdout] warning: variant is never constructed: `Sheldon` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Sheldon, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling double_cola v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Leonard` [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Leonard, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Rajesh` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Rajesh, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Howard` [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Howard, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Names` [INFO] [stdout] --> src/lib.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | type Names = Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `who_is_next` [INFO] [stdout] --> src/lib.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn who_is_next(names: &Names, n: usize) -> Name { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `within_position_range` [INFO] [stdout] --> src/lib.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn within_position_range( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `Command { std: "docker" "inspect" "c5e3dc5b3ef17fb1eb9ed0a76e3ead1fc8df7bfc90b7c50c2cb40b87a217821b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5e3dc5b3ef17fb1eb9ed0a76e3ead1fc8df7bfc90b7c50c2cb40b87a217821b", kill_on_drop: false }` [INFO] [stdout] c5e3dc5b3ef17fb1eb9ed0a76e3ead1fc8df7bfc90b7c50c2cb40b87a217821b [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 28d1c4243bcaf3f91f0617dc6f2e9a5ee8e84e2e990a61b9e249bb16c4386184 [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" "28d1c4243bcaf3f91f0617dc6f2e9a5ee8e84e2e990a61b9e249bb16c4386184", kill_on_drop: false }` [INFO] [stderr] warning: variant is never constructed: `Sheldon` [INFO] [stderr] --> src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | Sheldon, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Leonard` [INFO] [stderr] --> src/lib.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Leonard, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/lib.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Rajesh` [INFO] [stderr] --> src/lib.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Rajesh, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Howard` [INFO] [stderr] --> src/lib.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | Howard, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Names` [INFO] [stderr] --> src/lib.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | type Names = Vec; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `who_is_next` [INFO] [stderr] --> src/lib.rs:15:4 [INFO] [stderr] | [INFO] [stderr] 15 | fn who_is_next(names: &Names, n: usize) -> Name { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `within_position_range` [INFO] [stderr] --> src/lib.rs:30:4 [INFO] [stderr] | [INFO] [stderr] 30 | fn within_position_range( [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `double_cola` (lib) generated 8 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/double_cola-e54547959cd50f7b) [INFO] [stdout] running 8 tests [INFO] [stdout] test tests::n_is_eight ... ok [INFO] [stdout] test tests::n_is_fifty_two ... ok [INFO] [stdout] test tests::n_is_eight_small_list ... ok [INFO] [stdout] test tests::n_is_three_hundred_and_seventeen ... ok [INFO] [stderr] Doc-tests double_cola [INFO] [stdout] test tests::n_is_very_large ... ok [INFO] [stdout] test tests::n_is_one ... ok [INFO] [stdout] test tests::test_within_position_range ... ok [INFO] [stdout] test tests::n_is_two ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [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" "28d1c4243bcaf3f91f0617dc6f2e9a5ee8e84e2e990a61b9e249bb16c4386184", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28d1c4243bcaf3f91f0617dc6f2e9a5ee8e84e2e990a61b9e249bb16c4386184", kill_on_drop: false }` [INFO] [stdout] 28d1c4243bcaf3f91f0617dc6f2e9a5ee8e84e2e990a61b9e249bb16c4386184