[INFO] fetching crate trash_parallelism 0.1.102...
[INFO] checking trash_parallelism-0.1.102 against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] extracting crate trash_parallelism 0.1.102 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate trash_parallelism 0.1.102
[INFO] finished tweaking crates.io crate trash_parallelism 0.1.102
[INFO] tweaked toml for crates.io crate trash_parallelism 0.1.102 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trash_parallelism 0.1.102 on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trash_parallelism 0.1.102 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d60446abc2e8ba28f6e49c032fc272d9374602b06ffe9f164c9eae3b6a6ddd43
[INFO] running `Command { std: "docker" "start" "-a" "d60446abc2e8ba28f6e49c032fc272d9374602b06ffe9f164c9eae3b6a6ddd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d60446abc2e8ba28f6e49c032fc272d9374602b06ffe9f164c9eae3b6a6ddd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d60446abc2e8ba28f6e49c032fc272d9374602b06ffe9f164c9eae3b6a6ddd43", kill_on_drop: false }`
[INFO] [stdout] d60446abc2e8ba28f6e49c032fc272d9374602b06ffe9f164c9eae3b6a6ddd43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df996c9a1a774fd8785083f9637cca807ae1da0aecce2443e37a3eb7d45495e3
[INFO] running `Command { std: "docker" "start" "-a" "df996c9a1a774fd8785083f9637cca807ae1da0aecce2443e37a3eb7d45495e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
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[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> test/io_test.rs:451:22
[INFO] [stdout]     |
[INFO] [stdout] 451 |       let operations = vec![
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 452 | |         || std::fs::write("temp_batch1.txt", "data1"),
[INFO] [stdout]     | |         -- the expected closure
[INFO] [stdout] 453 | |         || std::fs::write("temp_batch2.txt", "data2"),
[INFO] [stdout] 454 | |         || std::fs::write("temp_batch3.txt", "data3"),
[INFO] [stdout] 455 | |     ];
[INFO] [stdout]     | |     ^
[INFO] [stdout]     | |     |
[INFO] [stdout]     | |_____expected `[{closure@io_test.rs:452:9}; _]`, found `[fn() -> Result<(), Error>; 3]`
[INFO] [stdout]     |       arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected array `[{closure@test/io_test.rs:452:9: 452:11}; _]`
[INFO] [stdout]                found array `[fn() -> Result<(), std::io::Error>; 3]`
[INFO] [stdout] help: the return type of this call is `[fn() -> Result<(), std::io::Error>; 3]` due to the type of the argument passed
[INFO] [stdout]    --> test/io_test.rs:451:22
[INFO] [stdout]     |
[INFO] [stdout] 451 |       let operations = vec![
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 452 | |         || std::fs::write("temp_batch1.txt", "data1"),
[INFO] [stdout] 453 | |         || std::fs::write("temp_batch2.txt", "data2"),
[INFO] [stdout] 454 | |         || std::fs::write("temp_batch3.txt", "data3"),
[INFO] [stdout] 455 | |     ];
[INFO] [stdout]     | |_____^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]     = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trash_parallelism` (bin "test_trash_parallelism" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "df996c9a1a774fd8785083f9637cca807ae1da0aecce2443e37a3eb7d45495e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df996c9a1a774fd8785083f9637cca807ae1da0aecce2443e37a3eb7d45495e3", kill_on_drop: false }`
[INFO] [stdout] df996c9a1a774fd8785083f9637cca807ae1da0aecce2443e37a3eb7d45495e3