[INFO] cloning repository https://github.com/jaredonline/rust-skip-list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaredonline/rust-skip-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaredonline%2Frust-skip-list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaredonline%2Frust-skip-list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 31e304a8a8ec2c917e47b7c4cfc3a84fe46768ea [INFO] testing jaredonline/rust-skip-list against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaredonline%2Frust-skip-list" "/workspace/builds/worker-87/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jaredonline/rust-skip-list on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jaredonline/rust-skip-list [INFO] finished tweaking git repo https://github.com/jaredonline/rust-skip-list [INFO] tweaked toml for git repo https://github.com/jaredonline/rust-skip-list written to /workspace/builds/worker-87/source/Cargo.toml [INFO] crate git repo https://github.com/jaredonline/rust-skip-list already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a7260bd4cebb8f8f93baaeee5f531e86fa7ffdf31662dcf474623f5430d1d31 [INFO] running `Command { std: "docker" "start" "-a" "4a7260bd4cebb8f8f93baaeee5f531e86fa7ffdf31662dcf474623f5430d1d31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a7260bd4cebb8f8f93baaeee5f531e86fa7ffdf31662dcf474623f5430d1d31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a7260bd4cebb8f8f93baaeee5f531e86fa7ffdf31662dcf474623f5430d1d31", kill_on_drop: false }` [INFO] [stdout] 4a7260bd4cebb8f8f93baaeee5f531e86fa7ffdf31662dcf474623f5430d1d31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f195b195add1d8dada6229018927eac3b2b5d2feef9d903b0c844484ec2ce4e0 [INFO] running `Command { std: "docker" "start" "-a" "f195b195add1d8dada6229018927eac3b2b5d2feef9d903b0c844484ec2ce4e0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling winapi v0.2.4 [INFO] [stderr] Compiling libc v0.1.10 [INFO] [stderr] Compiling advapi32-sys v0.1.2 [INFO] [stderr] Compiling rand v0.3.11 [INFO] [stderr] Compiling linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:235:14 [INFO] [stdout] | [INFO] [stdout] 235 | for i in (0 .. 10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 235 - for i in (0 .. 10) { [INFO] [stdout] 235 + for i in 0 .. 10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:245:14 [INFO] [stdout] | [INFO] [stdout] 245 | for i in (0 .. 10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 245 - for i in (0 .. 10) { [INFO] [stdout] 245 + for i in 0 .. 10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:259:14 [INFO] [stdout] | [INFO] [stdout] 259 | for i in (0 .. 10) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 259 - for i in (0 .. 10) { [INFO] [stdout] 259 + for i in 0 .. 10 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:265:14 [INFO] [stdout] | [INFO] [stdout] 265 | for i in (0 .. 100) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 265 - for i in (0 .. 100) { [INFO] [stdout] 265 + for i in 0 .. 100 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_node_count` [INFO] [stdout] --> src/main.rs:97:4 [INFO] [stdout] | [INFO] [stdout] 97 | fn get_node_count() -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.71s [INFO] running `Command { std: "docker" "inspect" "f195b195add1d8dada6229018927eac3b2b5d2feef9d903b0c844484ec2ce4e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f195b195add1d8dada6229018927eac3b2b5d2feef9d903b0c844484ec2ce4e0", kill_on_drop: false }` [INFO] [stdout] f195b195add1d8dada6229018927eac3b2b5d2feef9d903b0c844484ec2ce4e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 87df7d532b282ae18a63e59088f7905a1b86e95ad4fb0781fe2eee1d60ebc043 [INFO] running `Command { std: "docker" "start" "-a" "87df7d532b282ae18a63e59088f7905a1b86e95ad4fb0781fe2eee1d60ebc043", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:301:18 [INFO] [stdout] | [INFO] [stdout] 301 | for i in (0 .. 100) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 301 - for i in (0 .. 100) { [INFO] [stdout] 301 + for i in 0 .. 100 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:305:18 [INFO] [stdout] | [INFO] [stdout] 305 | for i in (0 .. 100) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 305 - for i in (0 .. 100) { [INFO] [stdout] 305 + for i in 0 .. 100 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:313:18 [INFO] [stdout] | [INFO] [stdout] 313 | for i in (0 .. 100) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 313 - for i in (0 .. 100) { [INFO] [stdout] 313 + for i in 0 .. 100 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:328:18 [INFO] [stdout] | [INFO] [stdout] 328 | for i in (1 .. 1000) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 328 - for i in (1 .. 1000) { [INFO] [stdout] 328 + for i in 1 .. 1000 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/main.rs:344:22 [INFO] [stdout] | [INFO] [stdout] 344 | for i in (0 .. 7) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 344 - for i in (0 .. 7) { [INFO] [stdout] 344 + for i in 0 .. 7 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.64s [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "87df7d532b282ae18a63e59088f7905a1b86e95ad4fb0781fe2eee1d60ebc043", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87df7d532b282ae18a63e59088f7905a1b86e95ad4fb0781fe2eee1d60ebc043", kill_on_drop: false }` [INFO] [stdout] 87df7d532b282ae18a63e59088f7905a1b86e95ad4fb0781fe2eee1d60ebc043 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b5711e2a6b6ca3d245a0a5e6690b7c6830af4d02e63897a01e84c766f4966016 [INFO] running `Command { std: "docker" "start" "-a" "b5711e2a6b6ca3d245a0a5e6690b7c6830af4d02e63897a01e84c766f4966016", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:301:18 [INFO] [stderr] | [INFO] [stderr] 301 | for i in (0 .. 100) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 301 - for i in (0 .. 100) { [INFO] [stderr] 301 + for i in 0 .. 100 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:305:18 [INFO] [stderr] | [INFO] [stderr] 305 | for i in (0 .. 100) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 305 - for i in (0 .. 100) { [INFO] [stderr] 305 + for i in 0 .. 100 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:313:18 [INFO] [stderr] | [INFO] [stderr] 313 | for i in (0 .. 100) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 313 - for i in (0 .. 100) { [INFO] [stderr] 313 + for i in 0 .. 100 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:328:18 [INFO] [stderr] | [INFO] [stderr] 328 | for i in (1 .. 1000) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 328 - for i in (1 .. 1000) { [INFO] [stderr] 328 + for i in 1 .. 1000 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:344:22 [INFO] [stderr] | [INFO] [stderr] 344 | for i in (0 .. 7) { [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 344 - for i in (0 .. 7) { [INFO] [stderr] 344 + for i in 0 .. 7 { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `linked-list` (bin "linked-list" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.51s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/linked_list-fd53c383b038144d) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test test::insert_at_for_one_value ... ok [INFO] [stdout] test test::nodes_should_not_leak ... ok [INFO] [stdout] test test::insert_increments_length ... ok [INFO] [stdout] test test::insert_at_for_two_values ... ok [INFO] [stdout] test test::many_inserts_and_iteration ... ok [INFO] [stdout] test test::many_inserts ... ok [INFO] [stdout] test test::many_inserts_lookup_iterations_should_be_less_than_items ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b5711e2a6b6ca3d245a0a5e6690b7c6830af4d02e63897a01e84c766f4966016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5711e2a6b6ca3d245a0a5e6690b7c6830af4d02e63897a01e84c766f4966016", kill_on_drop: false }` [INFO] [stdout] b5711e2a6b6ca3d245a0a5e6690b7c6830af4d02e63897a01e84c766f4966016