[INFO] cloning repository https://github.com/kylehz/datastruct-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kylehz/datastruct-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylehz%2Fdatastruct-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylehz%2Fdatastruct-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a3f3651406dca899435da60d92024842face5a92 [INFO] testing kylehz/datastruct-rs against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylehz%2Fdatastruct-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kylehz/datastruct-rs on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kylehz/datastruct-rs [INFO] finished tweaking git repo https://github.com/kylehz/datastruct-rs [INFO] tweaked toml for git repo https://github.com/kylehz/datastruct-rs written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/kylehz/datastruct-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 036e29f4c7f58b9ec820abc69d37468c6fc744f5f47ce83f26288772908eb4c1 [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" "036e29f4c7f58b9ec820abc69d37468c6fc744f5f47ce83f26288772908eb4c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "036e29f4c7f58b9ec820abc69d37468c6fc744f5f47ce83f26288772908eb4c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "036e29f4c7f58b9ec820abc69d37468c6fc744f5f47ce83f26288772908eb4c1", kill_on_drop: false }` [INFO] [stdout] 036e29f4c7f58b9ec820abc69d37468c6fc744f5f47ce83f26288772908eb4c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 854a00f5b30ad63fa4a5c9daf88fa1f42dc8e3320e3868820563cf1c4a151653 [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" "854a00f5b30ad63fa4a5c9daf88fa1f42dc8e3320e3868820563cf1c4a151653", kill_on_drop: false }` [INFO] [stderr] Compiling datastruct-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/vec_deque.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | for i in 0..additional { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `len` [INFO] [stdout] --> src/linked_list.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | len: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.29s [INFO] running `Command { std: "docker" "inspect" "854a00f5b30ad63fa4a5c9daf88fa1f42dc8e3320e3868820563cf1c4a151653", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "854a00f5b30ad63fa4a5c9daf88fa1f42dc8e3320e3868820563cf1c4a151653", kill_on_drop: false }` [INFO] [stdout] 854a00f5b30ad63fa4a5c9daf88fa1f42dc8e3320e3868820563cf1c4a151653 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 520c6d0ff9d82e2ad7fbb408f24ba914d733467e4b3a4842f58841e6561d49ea [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" "520c6d0ff9d82e2ad7fbb408f24ba914d733467e4b3a4842f58841e6561d49ea", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/vec_deque.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | for i in 0..additional { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling datastruct-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `len` [INFO] [stdout] --> src/linked_list.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | len: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/vec_deque.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | for i in 0..additional { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list.rs:75:13 [INFO] [stdout] | [INFO] [stdout] 75 | let mut node = Node::new(elem); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `len` [INFO] [stdout] --> src/linked_list.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | len: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.40s [INFO] running `Command { std: "docker" "inspect" "520c6d0ff9d82e2ad7fbb408f24ba914d733467e4b3a4842f58841e6561d49ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "520c6d0ff9d82e2ad7fbb408f24ba914d733467e4b3a4842f58841e6561d49ea", kill_on_drop: false }` [INFO] [stdout] 520c6d0ff9d82e2ad7fbb408f24ba914d733467e4b3a4842f58841e6561d49ea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] ba9e9e7039af349e8daa49010971607946eb27277f0e62b0c1e88432b12dce6f [INFO] running `Command { std: "docker" "start" "-a" "ba9e9e7039af349e8daa49010971607946eb27277f0e62b0c1e88432b12dce6f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] warning: unused variable: `i` [INFO] [stdout] running 5 tests [INFO] [stderr] --> src/vec_deque.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | for i in 0..additional { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/linked_list.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let mut node = Node::new(elem); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/linked_list.rs:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | let mut node = Node::new(elem); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `len` [INFO] [stderr] --> src/linked_list.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | len: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `datastruct-rs` (lib) generated 4 warnings [INFO] [stderr] warning: `datastruct-rs` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.30s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/datastruct_rs-5d9e8b51263df776) [INFO] [stdout] test binary_search_tree::tests::test1 ... ok [INFO] [stdout] test linked_list::tests::test1 ... ok [INFO] [stdout] test stack::tests::stack_test ... ok [INFO] [stdout] test linked_list::tests::test2 ... ok [INFO] [stdout] test vec_deque::tests::test1 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests datastruct-rs [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" "ba9e9e7039af349e8daa49010971607946eb27277f0e62b0c1e88432b12dce6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba9e9e7039af349e8daa49010971607946eb27277f0e62b0c1e88432b12dce6f", kill_on_drop: false }` [INFO] [stdout] ba9e9e7039af349e8daa49010971607946eb27277f0e62b0c1e88432b12dce6f