[INFO] cloning repository https://github.com/halfzebra/rust-smart-pointers-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/halfzebra/rust-smart-pointers-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalfzebra%2Frust-smart-pointers-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalfzebra%2Frust-smart-pointers-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d0f57ba42e7466e89ac79f06a9ce5a0f97765967 [INFO] checking halfzebra/rust-smart-pointers-examples against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalfzebra%2Frust-smart-pointers-examples" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/halfzebra/rust-smart-pointers-examples on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/halfzebra/rust-smart-pointers-examples [INFO] finished tweaking git repo https://github.com/halfzebra/rust-smart-pointers-examples [INFO] tweaked toml for git repo https://github.com/halfzebra/rust-smart-pointers-examples written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/halfzebra/rust-smart-pointers-examples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d4f2282febb4bb8307a414844ba0313638163978d5d7342901432559d7af0c91 [INFO] running `Command { std: "docker" "start" "-a" "d4f2282febb4bb8307a414844ba0313638163978d5d7342901432559d7af0c91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4f2282febb4bb8307a414844ba0313638163978d5d7342901432559d7af0c91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4f2282febb4bb8307a414844ba0313638163978d5d7342901432559d7af0c91", kill_on_drop: false }` [INFO] [stdout] d4f2282febb4bb8307a414844ba0313638163978d5d7342901432559d7af0c91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9327e8cc88005ae033c3c5889a7ba25c7eaaa9bf3900d7f8c66b13feebacb041 [INFO] running `Command { std: "docker" "start" "-a" "9327e8cc88005ae033c3c5889a7ba25c7eaaa9bf3900d7f8c66b13feebacb041", kill_on_drop: false }` [INFO] [stderr] Checking rust-smart-pointers-examples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/limit_tracker.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 62 | &self.sent_messages.borrow_mut().push(String::from(message)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/limit_tracker.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn new(messenger: &T, max: usize) -> LimitTracker { [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: `set_value` [INFO] [stdout] --> src/limit_tracker.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn set_value(&mut self, value: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "9327e8cc88005ae033c3c5889a7ba25c7eaaa9bf3900d7f8c66b13feebacb041", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9327e8cc88005ae033c3c5889a7ba25c7eaaa9bf3900d7f8c66b13feebacb041", kill_on_drop: false }` [INFO] [stdout] 9327e8cc88005ae033c3c5889a7ba25c7eaaa9bf3900d7f8c66b13feebacb041