[INFO] fetching crate specializer 1.0.0... [INFO] checking specializer-1.0.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1 [INFO] extracting crate specializer 1.0.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate specializer 1.0.0 [INFO] finished tweaking crates.io crate specializer 1.0.0 [INFO] tweaked toml for crates.io crate specializer 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate specializer 1.0.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate specializer 1.0.0 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 30502b22c8852dc389ceb5111710a489886af92b0bda96077812c2878ced42f5 [INFO] running `Command { std: "docker" "start" "-a" "30502b22c8852dc389ceb5111710a489886af92b0bda96077812c2878ced42f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30502b22c8852dc389ceb5111710a489886af92b0bda96077812c2878ced42f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30502b22c8852dc389ceb5111710a489886af92b0bda96077812c2878ced42f5", kill_on_drop: false }` [INFO] [stdout] 30502b22c8852dc389ceb5111710a489886af92b0bda96077812c2878ced42f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 175349f7e03c5985bf1ce5c29e96fb1c6a46a8804eefe5ff2bed4fef85f71ac0 [INFO] running `Command { std: "docker" "start" "-a" "175349f7e03c5985bf1ce5c29e96fb1c6a46a8804eefe5ff2bed4fef85f71ac0", kill_on_drop: false }` [INFO] [stderr] Checking pasts v0.14.3 [INFO] [stderr] Checking specializer v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | <(dyn Any + 'static)>::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 25 - <(dyn Any + 'static)>::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] 25 + ::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:51:6 [INFO] [stdout] | [INFO] [stdout] 51 | <(dyn Any + 'static)>::downcast_ref::(ty) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 51 - <(dyn Any + 'static)>::downcast_ref::(ty) [INFO] [stdout] 51 + ::downcast_ref::(ty) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:77:6 [INFO] [stdout] | [INFO] [stdout] 77 | <(dyn Any + 'static)>::downcast_mut::(ty) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 77 - <(dyn Any + 'static)>::downcast_mut::(ty) [INFO] [stdout] 77 + ::downcast_mut::(ty) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | <(dyn Any + 'static)>::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 25 - <(dyn Any + 'static)>::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] 25 + ::downcast_mut::>(&mut Some(ty))?.take() [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:51:6 [INFO] [stdout] | [INFO] [stdout] 51 | <(dyn Any + 'static)>::downcast_ref::(ty) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 51 - <(dyn Any + 'static)>::downcast_ref::(ty) [INFO] [stdout] 51 + ::downcast_ref::(ty) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/api.rs:77:6 [INFO] [stdout] | [INFO] [stdout] 77 | <(dyn Any + 'static)>::downcast_mut::(ty) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 77 - <(dyn Any + 'static)>::downcast_mut::(ty) [INFO] [stdout] 77 + ::downcast_mut::(ty) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "175349f7e03c5985bf1ce5c29e96fb1c6a46a8804eefe5ff2bed4fef85f71ac0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "175349f7e03c5985bf1ce5c29e96fb1c6a46a8804eefe5ff2bed4fef85f71ac0", kill_on_drop: false }` [INFO] [stdout] 175349f7e03c5985bf1ce5c29e96fb1c6a46a8804eefe5ff2bed4fef85f71ac0