[INFO] fetching crate exec-rs 0.1.2...
[INFO] checking exec-rs-0.1.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate exec-rs 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate exec-rs 0.1.2
[INFO] finished tweaking crates.io crate exec-rs 0.1.2
[INFO] tweaked toml for crates.io crate exec-rs 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate exec-rs 0.1.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding flurry v0.3.1 (available: v0.5.2)
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded flurry v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97dc6e6c164998d07a55abc1e27681f950a4f28c0ffd4c583c0840817d6096a9
[INFO] running `Command { std: "docker" "start" "-a" "97dc6e6c164998d07a55abc1e27681f950a4f28c0ffd4c583c0840817d6096a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97dc6e6c164998d07a55abc1e27681f950a4f28c0ffd4c583c0840817d6096a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97dc6e6c164998d07a55abc1e27681f950a4f28c0ffd4c583c0840817d6096a9", kill_on_drop: false }`
[INFO] [stdout] 97dc6e6c164998d07a55abc1e27681f950a4f28c0ffd4c583c0840817d6096a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 381eccd3c6d0b65e741b4b56653fabcf600c77cc31c4f6d33f5858c791b1e40f
[INFO] running `Command { std: "docker" "start" "-a" "381eccd3c6d0b65e741b4b56653fabcf600c77cc31c4f6d33f5858c791b1e40f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking flurry v0.3.1
[INFO] [stderr]     Checking exec-rs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/sync.rs:235:19
[INFO] [stdout]     |
[INFO] [stdout] 235 |         task: Box<(dyn FnOnce() -> T + 'f)>,
[INFO] [stdout]     |                   ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 235 -         task: Box<(dyn FnOnce() -> T + 'f)>,
[INFO] [stdout] 235 +         task: Box<dyn FnOnce() -> T + 'f>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/sync.rs:236:14
[INFO] [stdout]     |
[INFO] [stdout] 236 |     ) -> Box<(dyn FnOnce() -> T + 'f)> {
[INFO] [stdout]     |              ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -     ) -> Box<(dyn FnOnce() -> T + 'f)> {
[INFO] [stdout] 236 +     ) -> Box<dyn FnOnce() -> T + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/sync.rs:235:19
[INFO] [stdout]     |
[INFO] [stdout] 235 |         task: Box<(dyn FnOnce() -> T + 'f)>,
[INFO] [stdout]     |                   ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 235 -         task: Box<(dyn FnOnce() -> T + 'f)>,
[INFO] [stdout] 235 +         task: Box<dyn FnOnce() -> T + 'f>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/sync.rs:236:14
[INFO] [stdout]     |
[INFO] [stdout] 236 |     ) -> Box<(dyn FnOnce() -> T + 'f)> {
[INFO] [stdout]     |              ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -     ) -> Box<(dyn FnOnce() -> T + 'f)> {
[INFO] [stdout] 236 +     ) -> Box<dyn FnOnce() -> T + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:396:23
[INFO] [stdout]     |
[INFO] [stdout] 396 |             task: Box<(dyn FnOnce() -> i32 + 'f)>,
[INFO] [stdout]     |                       ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 396 -             task: Box<(dyn FnOnce() -> i32 + 'f)>,
[INFO] [stdout] 396 +             task: Box<dyn FnOnce() -> i32 + 'f>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:397:18
[INFO] [stdout]     |
[INFO] [stdout] 397 |         ) -> Box<(dyn FnOnce() -> i32 + 'f)> {
[INFO] [stdout]     |                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 397 -         ) -> Box<(dyn FnOnce() -> i32 + 'f)> {
[INFO] [stdout] 397 +         ) -> Box<dyn FnOnce() -> i32 + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:408:23
[INFO] [stdout]     |
[INFO] [stdout] 408 |             task: Box<(dyn FnOnce() -> i32 + 'f)>,
[INFO] [stdout]     |                       ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 408 -             task: Box<(dyn FnOnce() -> i32 + 'f)>,
[INFO] [stdout] 408 +             task: Box<dyn FnOnce() -> i32 + 'f>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:409:18
[INFO] [stdout]     |
[INFO] [stdout] 409 |         ) -> Box<(dyn FnOnce() -> i32 + 'f)> {
[INFO] [stdout]     |                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 409 -         ) -> Box<(dyn FnOnce() -> i32 + 'f)> {
[INFO] [stdout] 409 +         ) -> Box<dyn FnOnce() -> i32 + 'f> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:446:23
[INFO] [stdout]     |
[INFO] [stdout] 446 |             task: Box<(dyn FnOnce() -> &'a str + 'a)>,
[INFO] [stdout]     |                       ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 446 -             task: Box<(dyn FnOnce() -> &'a str + 'a)>,
[INFO] [stdout] 446 +             task: Box<dyn FnOnce() -> &'a str + 'a>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:447:18
[INFO] [stdout]     |
[INFO] [stdout] 447 |         ) -> Box<(dyn FnOnce() -> &'a str + 'a)> {
[INFO] [stdout]     |                  ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 447 -         ) -> Box<(dyn FnOnce() -> &'a str + 'a)> {
[INFO] [stdout] 447 +         ) -> Box<dyn FnOnce() -> &'a str + 'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:599:27
[INFO] [stdout]     |
[INFO] [stdout] 599 |                 task: Box<(dyn FnOnce() -> u16)>,
[INFO] [stdout]     |                           ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 599 -                 task: Box<(dyn FnOnce() -> u16)>,
[INFO] [stdout] 599 +                 task: Box<dyn FnOnce() -> u16>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:600:22
[INFO] [stdout]     |
[INFO] [stdout] 600 |             ) -> Box<(dyn FnOnce() -> u16)> {
[INFO] [stdout]     |                      ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 600 -             ) -> Box<(dyn FnOnce() -> u16)> {
[INFO] [stdout] 600 +             ) -> Box<dyn FnOnce() -> u16> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "381eccd3c6d0b65e741b4b56653fabcf600c77cc31c4f6d33f5858c791b1e40f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381eccd3c6d0b65e741b4b56653fabcf600c77cc31c4f6d33f5858c791b1e40f", kill_on_drop: false }`
[INFO] [stdout] 381eccd3c6d0b65e741b4b56653fabcf600c77cc31c4f6d33f5858c791b1e40f