[INFO] cloning repository https://github.com/locez/data-structure [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/locez/data-structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flocez%2Fdata-structure", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flocez%2Fdata-structure'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6cbcedacf7ff754e23aefcbc2ae93856fb024a6a [INFO] testing locez/data-structure against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flocez%2Fdata-structure" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/locez/data-structure on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/locez/data-structure [INFO] finished tweaking git repo https://github.com/locez/data-structure [INFO] tweaked toml for git repo https://github.com/locez/data-structure written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/locez/data-structure already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef286ac485d2fbeb0fcbd1df787dd5ce75b520716ab6bebc2bcdba47f879a540 [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" "ef286ac485d2fbeb0fcbd1df787dd5ce75b520716ab6bebc2bcdba47f879a540", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef286ac485d2fbeb0fcbd1df787dd5ce75b520716ab6bebc2bcdba47f879a540", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef286ac485d2fbeb0fcbd1df787dd5ce75b520716ab6bebc2bcdba47f879a540", kill_on_drop: false }` [INFO] [stdout] ef286ac485d2fbeb0fcbd1df787dd5ce75b520716ab6bebc2bcdba47f879a540 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d8c257c2b9aaca4560df8104d463fa8f8b1bc1eb8a29c334229c7b93d95af23 [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" "3d8c257c2b9aaca4560df8104d463fa8f8b1bc1eb8a29c334229c7b93d95af23", kill_on_drop: false }` [INFO] [stderr] Compiling data-structure v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/data_structure/stack.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/data_structure/stack.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek` [INFO] [stdout] --> src/data_structure/stack.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "3d8c257c2b9aaca4560df8104d463fa8f8b1bc1eb8a29c334229c7b93d95af23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d8c257c2b9aaca4560df8104d463fa8f8b1bc1eb8a29c334229c7b93d95af23", kill_on_drop: false }` [INFO] [stdout] 3d8c257c2b9aaca4560df8104d463fa8f8b1bc1eb8a29c334229c7b93d95af23 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b4986bf9f477a7014d5dbe90c9673825f3f47a5ac1f2b42466965942d6249021 [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" "b4986bf9f477a7014d5dbe90c9673825f3f47a5ac1f2b42466965942d6249021", kill_on_drop: false }` [INFO] [stderr] Compiling data-structure v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/data_structure/stack.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/data_structure/stack.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek` [INFO] [stdout] --> src/data_structure/stack.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/data_structure/stack.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/data_structure/stack.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek` [INFO] [stdout] --> src/data_structure/stack.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.09s [INFO] running `Command { std: "docker" "inspect" "b4986bf9f477a7014d5dbe90c9673825f3f47a5ac1f2b42466965942d6249021", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4986bf9f477a7014d5dbe90c9673825f3f47a5ac1f2b42466965942d6249021", kill_on_drop: false }` [INFO] [stdout] b4986bf9f477a7014d5dbe90c9673825f3f47a5ac1f2b42466965942d6249021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 108818d1e1b78adfeb3d5d08f163d202ec2333ffa4bcbc769c9bd3493b3d7125 [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" "108818d1e1b78adfeb3d5d08f163d202ec2333ffa4bcbc769c9bd3493b3d7125", kill_on_drop: false }` [INFO] [stderr] warning: associated function is never used: `is_empty` [INFO] [stderr] --> src/data_structure/stack.rs:21:12 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `length` [INFO] [stderr] --> src/data_structure/stack.rs:25:12 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn length(&self) -> usize { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `peek` [INFO] [stderr] --> src/data_structure/stack.rs:29:12 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn peek(&self) -> Option<&T> { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: `data-structure` (bin "data-structure") generated 3 warnings [INFO] [stderr] warning: `data-structure` (bin "data-structure" test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/data_structure-7b6b5019b8ce42d8) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/data_structure-1c27ea70949115bf) [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] [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] [stderr] Running tests/stack_test.rs (/opt/rustwide/target/debug/deps/stack_test-838c84b395e41808) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test stack_test ... ok [INFO] [stderr] Doc-tests data-structure [INFO] [stdout] test empty_pop - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [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" "108818d1e1b78adfeb3d5d08f163d202ec2333ffa4bcbc769c9bd3493b3d7125", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "108818d1e1b78adfeb3d5d08f163d202ec2333ffa4bcbc769c9bd3493b3d7125", kill_on_drop: false }` [INFO] [stdout] 108818d1e1b78adfeb3d5d08f163d202ec2333ffa4bcbc769c9bd3493b3d7125