[INFO] cloning repository https://github.com/blkmlk/linked-vec [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blkmlk/linked-vec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Flinked-vec", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Flinked-vec'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4da13a08fc72cd4da567aba63c4ccf2e810ecd3e [INFO] checking blkmlk/linked-vec against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblkmlk%2Flinked-vec" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/blkmlk/linked-vec on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/blkmlk/linked-vec [INFO] finished tweaking git repo https://github.com/blkmlk/linked-vec [INFO] tweaked toml for git repo https://github.com/blkmlk/linked-vec written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/blkmlk/linked-vec 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" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 66622a8b3e47c95ce489d2f84a69e3a0d43fb18b337a367374fdc8594a0708fb [INFO] running `Command { std: "docker" "start" "-a" "66622a8b3e47c95ce489d2f84a69e3a0d43fb18b337a367374fdc8594a0708fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66622a8b3e47c95ce489d2f84a69e3a0d43fb18b337a367374fdc8594a0708fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66622a8b3e47c95ce489d2f84a69e3a0d43fb18b337a367374fdc8594a0708fb", kill_on_drop: false }` [INFO] [stdout] 66622a8b3e47c95ce489d2f84a69e3a0d43fb18b337a367374fdc8594a0708fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c1ad42f7c39b802e105ff06e2a7c05cee6efedb55b7fa431b7ef50369cb25bb [INFO] running `Command { std: "docker" "start" "-a" "8c1ad42f7c39b802e105ff06e2a7c05cee6efedb55b7fa431b7ef50369cb25bb", kill_on_drop: false }` [INFO] [stderr] Checking linked-vec v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut front = self.front_mut(); [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/lib.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | let mut back = self.back_mut(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut front = self.front_mut(); [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/lib.rs:52:13 [INFO] [stdout] | [INFO] [stdout] 52 | let mut back = self.back_mut(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LinkedVec` is never constructed [INFO] [stdout] --> src/lib.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct LinkedVec { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/lib.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl LinkedVec { [INFO] [stdout] | -------------------- associated items in this implementation [INFO] [stdout] 9 | pub fn new(vec_size: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn capacity(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn push_front(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn pop_front(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn push_back(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn pop_back(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 71 | fn front(&self) -> &VecDeque { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 78 | fn front_mut(&mut self) -> &mut VecDeque { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 85 | fn back(&self) -> &VecDeque { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | fn back_mut(&mut self) -> &mut VecDeque { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "8c1ad42f7c39b802e105ff06e2a7c05cee6efedb55b7fa431b7ef50369cb25bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c1ad42f7c39b802e105ff06e2a7c05cee6efedb55b7fa431b7ef50369cb25bb", kill_on_drop: false }` [INFO] [stdout] 8c1ad42f7c39b802e105ff06e2a7c05cee6efedb55b7fa431b7ef50369cb25bb