[INFO] fetching crate sync-threadpool 0.0.2...
[INFO] checking sync-threadpool-0.0.2 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate sync-threadpool 0.0.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate sync-threadpool 0.0.2 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sync-threadpool 0.0.2
[INFO] finished tweaking crates.io crate sync-threadpool 0.0.2
[INFO] tweaked toml for crates.io crate sync-threadpool 0.0.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8916b3df4ef5fc40b314d360e6686e8fc07cc2de21c7f6678e708bfc777a104
[INFO] running `Command { std: "docker" "start" "-a" "a8916b3df4ef5fc40b314d360e6686e8fc07cc2de21c7f6678e708bfc777a104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8916b3df4ef5fc40b314d360e6686e8fc07cc2de21c7f6678e708bfc777a104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8916b3df4ef5fc40b314d360e6686e8fc07cc2de21c7f6678e708bfc777a104", kill_on_drop: false }`
[INFO] [stdout] a8916b3df4ef5fc40b314d360e6686e8fc07cc2de21c7f6678e708bfc777a104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091df2ce0bab77703a8f6a2d9301ebaf210b2ae6318ad9898f2bef5cf7efebc0
[INFO] running `Command { std: "docker" "start" "-a" "091df2ce0bab77703a8f6a2d9301ebaf210b2ae6318ad9898f2bef5cf7efebc0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking sync-threadpool v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/lib.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |         self.tx.send(Some(box job)).unwrap();
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 84 |         self.tx.send(Some(Box::new(job))).unwrap();
[INFO] [stdout]    |                           ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/lib.rs:84:27
[INFO] [stdout]    |
[INFO] [stdout] 84 |         self.tx.send(Some(box job)).unwrap();
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 84 |         self.tx.send(Some(Box::new(job))).unwrap();
[INFO] [stdout]    |                           ~~~~~~~~~   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(box_syntax)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(box_syntax)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]   --> src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | use std::boxed::FnBox;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]   --> src/lib.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | use std::boxed::FnBox;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fnbox`
[INFO] [stdout]   --> src/lib.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | #![feature(fnbox)]
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fnbox`
[INFO] [stdout]   --> src/lib.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | #![feature(fnbox)]
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sync-threadpool` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sync-threadpool` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "091df2ce0bab77703a8f6a2d9301ebaf210b2ae6318ad9898f2bef5cf7efebc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091df2ce0bab77703a8f6a2d9301ebaf210b2ae6318ad9898f2bef5cf7efebc0", kill_on_drop: false }`
[INFO] [stdout] 091df2ce0bab77703a8f6a2d9301ebaf210b2ae6318ad9898f2bef5cf7efebc0