[INFO] fetching crate corosensei-awaiter-trait 0.2.8...
[INFO] checking corosensei-awaiter-trait-0.2.8 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate corosensei-awaiter-trait 0.2.8 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate corosensei-awaiter-trait 0.2.8
[INFO] finished tweaking crates.io crate corosensei-awaiter-trait 0.2.8
[INFO] tweaked toml for crates.io crate corosensei-awaiter-trait 0.2.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate corosensei-awaiter-trait 0.2.8 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate corosensei-awaiter-trait 0.2.8 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.10.0
[INFO] [stderr]   Downloaded awaiter-trait v0.2.8
[INFO] [stderr]   Downloaded corosensei v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d66f3c7e927d6d3e8385026a36e70e925b520387c8798097097102aff932416
[INFO] running `Command { std: "docker" "start" "-a" "1d66f3c7e927d6d3e8385026a36e70e925b520387c8798097097102aff932416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d66f3c7e927d6d3e8385026a36e70e925b520387c8798097097102aff932416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d66f3c7e927d6d3e8385026a36e70e925b520387c8798097097102aff932416", kill_on_drop: false }`
[INFO] [stdout] 1d66f3c7e927d6d3e8385026a36e70e925b520387c8798097097102aff932416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531e9afa2fc107bb1bff508a1973c841b79f1f973299b5a09611194daf98bd59
[INFO] running `Command { std: "docker" "start" "-a" "531e9afa2fc107bb1bff508a1973c841b79f1f973299b5a09611194daf98bd59", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking awaiter-trait v0.2.8
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling corosensei v0.2.2
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]     Checking corosensei-awaiter-trait v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                             ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 mut t => match Some(f) {
[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:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                             ^                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 -             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout] 75 +             let mut f: &mut dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> () =
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 mut t => match Some(f) {
[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:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let mut f: &mut (dyn FnMut(&(dyn awaiter_trait::r#dyn::DynAwaiter + '_)) -> ()) =
[INFO] [stdout]    |                 ----^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "531e9afa2fc107bb1bff508a1973c841b79f1f973299b5a09611194daf98bd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531e9afa2fc107bb1bff508a1973c841b79f1f973299b5a09611194daf98bd59", kill_on_drop: false }`
[INFO] [stdout] 531e9afa2fc107bb1bff508a1973c841b79f1f973299b5a09611194daf98bd59