[INFO] cloning repository https://github.com/urey-hiker/rustList_test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/urey-hiker/rustList_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furey-hiker%2FrustList_test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furey-hiker%2FrustList_test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1610c6408e4c9cf2174d38915a4a3b79659124ae [INFO] checking urey-hiker/rustList_test against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furey-hiker%2FrustList_test" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/urey-hiker/rustList_test [INFO] finished tweaking git repo https://github.com/urey-hiker/rustList_test [INFO] tweaked toml for git repo https://github.com/urey-hiker/rustList_test written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/urey-hiker/rustList_test on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/urey-hiker/rustList_test already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8dd786f0ffbbb79a59f442b415282483761ade1baaef88e8c5a2ba6f87a36e71 [INFO] running `Command { std: "docker" "start" "-a" "8dd786f0ffbbb79a59f442b415282483761ade1baaef88e8c5a2ba6f87a36e71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8dd786f0ffbbb79a59f442b415282483761ade1baaef88e8c5a2ba6f87a36e71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8dd786f0ffbbb79a59f442b415282483761ade1baaef88e8c5a2ba6f87a36e71", kill_on_drop: false }` [INFO] [stdout] 8dd786f0ffbbb79a59f442b415282483761ade1baaef88e8c5a2ba6f87a36e71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 734cc393e7e1b3609bb0b2a2f3cc2e025aa3f76ec025743fceefa54b2e6d0afa [INFO] running `Command { std: "docker" "start" "-a" "734cc393e7e1b3609bb0b2a2f3cc2e025aa3f76ec025743fceefa54b2e6d0afa", kill_on_drop: false }` [INFO] [stderr] Checking list_test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/listC.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | type Link = Option>>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/listC.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/listC.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Inter` is never constructed [INFO] [stdout] --> src/listC.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct Inter { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/listC.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 37 | impl List { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] 38 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | fn IntoIter(&mut self) -> Inter { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | fn push(&mut self, v: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 66 | fn pop_front(&mut self) -> Link { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn pop_front_val(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | fn peek_front(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | fn peek_front_ref(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `IntoIter` should have a snake case name [INFO] [stdout] --> src/listC.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | fn IntoIter(&mut self) -> Inter { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `into_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/listC.rs:103:23 [INFO] [stdout] | [INFO] [stdout] 103 | fn peek_front_ref(&self) -> Option> { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 103 | fn peek_front_ref(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `peek_front_refMut` should have a snake case name [INFO] [stdout] --> src/listC.rs:111:8 [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `peek_front_ref_mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/listC.rs:111:26 [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `peek_front` is never used [INFO] [stdout] --> src/listC.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 37 | impl List { [INFO] [stdout] | ----------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 94 | fn peek_front(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `IntoIter` should have a snake case name [INFO] [stdout] --> src/listC.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | fn IntoIter(&mut self) -> Inter { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `into_iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/listC.rs:103:23 [INFO] [stdout] | [INFO] [stdout] 103 | fn peek_front_ref(&self) -> Option> { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 103 | fn peek_front_ref(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `peek_front_refMut` should have a snake case name [INFO] [stdout] --> src/listC.rs:111:8 [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `peek_front_ref_mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/listC.rs:111:26 [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 111 | fn peek_front_refMut(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ListC` should have a snake case name [INFO] [stdout] --> src/listC.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 124 | fn ListC() { [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `list_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "734cc393e7e1b3609bb0b2a2f3cc2e025aa3f76ec025743fceefa54b2e6d0afa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "734cc393e7e1b3609bb0b2a2f3cc2e025aa3f76ec025743fceefa54b2e6d0afa", kill_on_drop: false }` [INFO] [stdout] 734cc393e7e1b3609bb0b2a2f3cc2e025aa3f76ec025743fceefa54b2e6d0afa