[INFO] cloning repository https://github.com/thealmarty/skip_lists_sorted [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thealmarty/skip_lists_sorted" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthealmarty%2Fskip_lists_sorted", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthealmarty%2Fskip_lists_sorted'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 64298ce32403180f90a7baedb72ab0f956de26fe [INFO] testing thealmarty/skip_lists_sorted against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthealmarty%2Fskip_lists_sorted" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thealmarty/skip_lists_sorted 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/thealmarty/skip_lists_sorted [INFO] finished tweaking git repo https://github.com/thealmarty/skip_lists_sorted [INFO] tweaked toml for git repo https://github.com/thealmarty/skip_lists_sorted written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/thealmarty/skip_lists_sorted 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] ba53cec86380c25edab4e688990edb2e32a97444875edbeacab9d13c3968edeb [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" "ba53cec86380c25edab4e688990edb2e32a97444875edbeacab9d13c3968edeb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba53cec86380c25edab4e688990edb2e32a97444875edbeacab9d13c3968edeb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba53cec86380c25edab4e688990edb2e32a97444875edbeacab9d13c3968edeb", kill_on_drop: false }` [INFO] [stdout] ba53cec86380c25edab4e688990edb2e32a97444875edbeacab9d13c3968edeb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f40e88c3963d5baed4f901364aefbc430f0c26aee3bd873c3fc5a50a29e40d13 [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" "f40e88c3963d5baed4f901364aefbc430f0c26aee3bd873c3fc5a50a29e40d13", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling fastrand v1.4.0 [INFO] [stderr] Compiling skip_lists_sorted v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias is never used: `SkipList` [INFO] [stdout] --> src/main.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | type SkipList = Vec>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_node` [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn find_node(val: T, slist: SkipList) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.71s [INFO] running `Command { std: "docker" "inspect" "f40e88c3963d5baed4f901364aefbc430f0c26aee3bd873c3fc5a50a29e40d13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f40e88c3963d5baed4f901364aefbc430f0c26aee3bd873c3fc5a50a29e40d13", kill_on_drop: false }` [INFO] [stdout] f40e88c3963d5baed4f901364aefbc430f0c26aee3bd873c3fc5a50a29e40d13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 089937f9e37503577ffde93c1e18ff2e85820298c331e0476109877b4d9c45e6 [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" "089937f9e37503577ffde93c1e18ff2e85820298c331e0476109877b4d9c45e6", kill_on_drop: false }` [INFO] [stderr] Compiling skip_lists_sorted v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias is never used: `SkipList` [INFO] [stdout] --> src/main.rs:23:1 [INFO] [stdout] | [INFO] [stdout] 23 | type SkipList = Vec>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_node` [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn find_node(val: T, slist: SkipList) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.89s [INFO] running `Command { std: "docker" "inspect" "089937f9e37503577ffde93c1e18ff2e85820298c331e0476109877b4d9c45e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "089937f9e37503577ffde93c1e18ff2e85820298c331e0476109877b4d9c45e6", kill_on_drop: false }` [INFO] [stdout] 089937f9e37503577ffde93c1e18ff2e85820298c331e0476109877b4d9c45e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0a7eb8d5ec577659fc35a866a34e0105f99fde288d94861fc3321d51eff453bc [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" "0a7eb8d5ec577659fc35a866a34e0105f99fde288d94861fc3321d51eff453bc", kill_on_drop: false }` [INFO] [stderr] warning: type alias is never used: `SkipList` [INFO] [stderr] --> src/main.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | type SkipList = Vec>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `find_node` [INFO] [stderr] --> src/main.rs:27:4 [INFO] [stderr] | [INFO] [stderr] 27 | fn find_node(val: T, slist: SkipList) -> Option> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `skip_lists_sorted` (bin "skip_lists_sorted" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/skip_lists_sorted-a361ccf25c19c164) [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" "0a7eb8d5ec577659fc35a866a34e0105f99fde288d94861fc3321d51eff453bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a7eb8d5ec577659fc35a866a34e0105f99fde288d94861fc3321d51eff453bc", kill_on_drop: false }` [INFO] [stdout] 0a7eb8d5ec577659fc35a866a34e0105f99fde288d94861fc3321d51eff453bc