[INFO] cloning repository https://github.com/Jett59/derivative-finder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jett59/derivative-finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dbac3cd8184f57a436f96aa1be231f660e8a49c4 [INFO] checking Jett59/derivative-finder/dbac3cd8184f57a436f96aa1be231f660e8a49c4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJett59%2Fderivative-finder" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Jett59/derivative-finder on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Jett59/derivative-finder [INFO] finished tweaking git repo https://github.com/Jett59/derivative-finder [INFO] tweaked toml for git repo https://github.com/Jett59/derivative-finder written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Jett59/derivative-finder 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ccc525118146a615bc9386391ca2045e1a44fb11bae08658a93fd1202fe7ca32 [INFO] running `Command { std: "docker" "start" "-a" "ccc525118146a615bc9386391ca2045e1a44fb11bae08658a93fd1202fe7ca32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ccc525118146a615bc9386391ca2045e1a44fb11bae08658a93fd1202fe7ca32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ccc525118146a615bc9386391ca2045e1a44fb11bae08658a93fd1202fe7ca32", kill_on_drop: false }` [INFO] [stdout] ccc525118146a615bc9386391ca2045e1a44fb11bae08658a93fd1202fe7ca32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b0d1007c1d480318c79f38fc712137cc855ce68e44917a37d0a563aeb2191ae [INFO] running `Command { std: "docker" "start" "-a" "0b0d1007c1d480318c79f38fc712137cc855ce68e44917a37d0a563aeb2191ae", kill_on_drop: false }` [INFO] [stderr] Checking derivative-finder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated items `with_id`, `new`, `assign`, `unset`, `id`, and `as_value` are never used [INFO] [stdout] --> src/value.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Variable { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 16 | pub fn with_id(id: usize) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn assign(&self, value: f64) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn unset(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn id(&self) -> usize { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn as_value(self) -> Value { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/value.rs:25:32 [INFO] [stdout] | [INFO] [stdout] 25 | Self::with_id(unsafe { NEXT_ID.fetch_add(1, std::sync::atomic::Ordering::Relaxed) }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `unset` and `id` are never used [INFO] [stdout] --> src/value.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Variable { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn unset(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn id(&self) -> usize { [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/value.rs:25:32 [INFO] [stdout] | [INFO] [stdout] 25 | Self::with_id(unsafe { NEXT_ID.fetch_add(1, std::sync::atomic::Ordering::Relaxed) }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "0b0d1007c1d480318c79f38fc712137cc855ce68e44917a37d0a563aeb2191ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b0d1007c1d480318c79f38fc712137cc855ce68e44917a37d0a563aeb2191ae", kill_on_drop: false }` [INFO] [stdout] 0b0d1007c1d480318c79f38fc712137cc855ce68e44917a37d0a563aeb2191ae