[INFO] fetching crate cold 0.0.2... [INFO] checking cold-0.0.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate cold 0.0.2 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate cold 0.0.2 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 crates.io crate cold 0.0.2 [INFO] finished tweaking crates.io crate cold 0.0.2 [INFO] tweaked toml for crates.io crate cold 0.0.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 36 packages to latest compatible versions [INFO] [stderr] Adding mio v0.7.14 (available: v1.0.2) [INFO] [stderr] Adding miow v0.3.7 (available: v0.6.0) [INFO] [stderr] Adding ntapi v0.3.7 (available: v0.4.1) [INFO] [stderr] Adding redox_syscall v0.1.57 (available: v0.5.6) [INFO] [stderr] Adding thread-id v3.3.0 (available: v4.2.2) [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] 40a32bd64e95cca9e79ab5660d17017db0e6723c3dae90d19fa21b84ad56431f [INFO] running `Command { std: "docker" "start" "-a" "40a32bd64e95cca9e79ab5660d17017db0e6723c3dae90d19fa21b84ad56431f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "40a32bd64e95cca9e79ab5660d17017db0e6723c3dae90d19fa21b84ad56431f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40a32bd64e95cca9e79ab5660d17017db0e6723c3dae90d19fa21b84ad56431f", kill_on_drop: false }` [INFO] [stdout] 40a32bd64e95cca9e79ab5660d17017db0e6723c3dae90d19fa21b84ad56431f [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] 6709d03e13aace47a1313fe45604c109fb503874f5d0dadf497e884d19428aaa [INFO] running `Command { std: "docker" "start" "-a" "6709d03e13aace47a1313fe45604c109fb503874f5d0dadf497e884d19428aaa", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking thread-id v3.3.0 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking simple-logging v2.0.2 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking crossbeam-queue v0.3.11 [INFO] [stderr] Checking crossbeam-channel v0.5.13 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking cold v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/rt.rs:127:13 [INFO] [stdout] | [INFO] [stdout] 127 | let mut ctx = ctxs.get_mut(&self.this).unwrap(); [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/rt.rs:127:13 [INFO] [stdout] | [INFO] [stdout] 127 | let mut ctx = ctxs.get_mut(&self.this).unwrap(); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s [INFO] running `Command { std: "docker" "inspect" "6709d03e13aace47a1313fe45604c109fb503874f5d0dadf497e884d19428aaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6709d03e13aace47a1313fe45604c109fb503874f5d0dadf497e884d19428aaa", kill_on_drop: false }` [INFO] [stdout] 6709d03e13aace47a1313fe45604c109fb503874f5d0dadf497e884d19428aaa