[INFO] fetching crate cargo-test-junit 0.6.7...
[INFO] testing cargo-test-junit-0.6.7 against 1.75.0 for beta-1.76-1
[INFO] extracting crate cargo-test-junit 0.6.7 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cargo-test-junit 0.6.7 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-test-junit 0.6.7
[INFO] finished tweaking crates.io crate cargo-test-junit 0.6.7
[INFO] tweaked toml for crates.io crate cargo-test-junit 0.6.7 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" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded peresil v0.3.0
[INFO] [stderr]   Downloaded typed-arena v1.7.0
[INFO] [stderr]   Downloaded nom v3.2.1
[INFO] [stderr]   Downloaded duct v0.4.0
[INFO] [stderr]   Downloaded test-to-vec v0.4.3
[INFO] [stderr]   Downloaded sxd-document v0.2.6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4220ee7c668d8de69362dfdac2c75e7a34fcee3907a84e0950823ad596fe5c00
[INFO] running `Command { std: "docker" "start" "-a" "4220ee7c668d8de69362dfdac2c75e7a34fcee3907a84e0950823ad596fe5c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4220ee7c668d8de69362dfdac2c75e7a34fcee3907a84e0950823ad596fe5c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4220ee7c668d8de69362dfdac2c75e7a34fcee3907a84e0950823ad596fe5c00", kill_on_drop: false }`
[INFO] [stdout] 4220ee7c668d8de69362dfdac2c75e7a34fcee3907a84e0950823ad596fe5c00
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9443a96d130df3237bc63a748af5619546c51864417292966b79f540247857e2
[INFO] running `Command { std: "docker" "start" "-a" "9443a96d130df3237bc63a748af5619546c51864417292966b79f540247857e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling peresil v0.3.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling sxd-document v0.2.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling crossbeam-queue v0.3.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling crossbeam v0.8.3
[INFO] [stderr]    Compiling duct v0.4.0
[INFO] [stdout] error[E0412]: cannot find type `Scope` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:343:52
[INFO] [stdout]     |
[INFO] [stdout] 343 | ...                   scope: &crossbeam::Scope<'a>)
[INFO] [stdout]     |                                          ^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Scope`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 343 -                                 scope: &crossbeam::Scope<'a>)
[INFO] [stdout] 343 +                                 scope: &Scope<'a>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ScopedJoinHandle` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:668:32
[INFO] [stdout]     |
[INFO] [stdout] 668 | type WriterThread = crossbeam::ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::ScopedJoinHandle;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::ScopedJoinHandle;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `ScopedJoinHandle`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 668 - type WriterThread = crossbeam::ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout] 668 + type WriterThread = ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Scope` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:671:51
[INFO] [stdout]     |
[INFO] [stdout] 671 | ...                   scope: &crossbeam::Scope<'a>)
[INFO] [stdout]     |                                          ^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Scope`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 671 -                                scope: &crossbeam::Scope<'a>)
[INFO] [stdout] 671 +                                scope: &Scope<'a>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:229:33
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let left_joiner = scope.spawn(|| left.inner.exec(left_context));
[INFO] [stdout]     |                                 ^^^^^ -- takes 0 arguments
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 expected closure that takes 1 argument
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the closure to take and ignore the expected argument
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let left_joiner = scope.spawn(|_| left.inner.exec(left_context));
[INFO] [stdout]     |                                       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |       fn with_child_context<F>(&self, parent_context: IoContext, inner: F) -> io::Result<Status>
[INFO] [stdout]     |                                                                               ------------------ expected `Result<i32, std::io::Error>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 268 | /         crossbeam::scope(|scope| {
[INFO] [stdout] 269 | |             let mut context = parent_context;  // move it into the closure
[INFO] [stdout] 270 | |             let mut maybe_stdin_thread = None;
[INFO] [stdout] 271 | |             let mut unchecked = false;
[INFO] [stdout] ...   |
[INFO] [stdout] 325 | |             }
[INFO] [stdout] 326 | |         })
[INFO] [stdout]     | |__________^ expected `Result<i32, Error>`, found `Result<Result<i32, _>, Box<...>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<i32, std::io::Error>`
[INFO] [stdout]                found enum `Result<Result<i32, _>, Box<(dyn Any + Send + 'static)>>`
[INFO] [stdout] help: use the `?` operator to extract the `Result<Result<i32, _>, Box<(dyn Any + Send + 'static)>>` value, propagating a `Result::Err` value to the caller
[INFO] [stdout]     |
[INFO] [stdout] 326 |         })?
[INFO] [stdout]     |           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0593.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `duct` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9443a96d130df3237bc63a748af5619546c51864417292966b79f540247857e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9443a96d130df3237bc63a748af5619546c51864417292966b79f540247857e2", kill_on_drop: false }`
[INFO] [stdout] 9443a96d130df3237bc63a748af5619546c51864417292966b79f540247857e2
[INFO] testing cargo-test-junit-0.6.7 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate cargo-test-junit 0.6.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate cargo-test-junit 0.6.7 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-test-junit 0.6.7
[INFO] finished tweaking crates.io crate cargo-test-junit 0.6.7
[INFO] tweaked toml for crates.io crate cargo-test-junit 0.6.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6f7e5888b0ef05a3d0c842ecb1838119ccd871063aac0dc10d7480820314b41
[INFO] running `Command { std: "docker" "start" "-a" "b6f7e5888b0ef05a3d0c842ecb1838119ccd871063aac0dc10d7480820314b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6f7e5888b0ef05a3d0c842ecb1838119ccd871063aac0dc10d7480820314b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f7e5888b0ef05a3d0c842ecb1838119ccd871063aac0dc10d7480820314b41", kill_on_drop: false }`
[INFO] [stdout] b6f7e5888b0ef05a3d0c842ecb1838119ccd871063aac0dc10d7480820314b41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e52264412a449b6319e1675688ddf1557d00be949641af520c48cb5f1b16d08d
[INFO] running `Command { std: "docker" "start" "-a" "e52264412a449b6319e1675688ddf1557d00be949641af520c48cb5f1b16d08d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling peresil v0.3.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling sxd-document v0.2.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling crossbeam-queue v0.3.10
[INFO] [stderr]    Compiling crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling crossbeam v0.8.3
[INFO] [stderr]    Compiling duct v0.4.0
[INFO] [stdout] error[E0412]: cannot find type `Scope` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:343:52
[INFO] [stdout]     |
[INFO] [stdout] 343 | ...                   scope: &crossbeam::Scope<'a>)
[INFO] [stdout]     |                                          ^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Scope`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 343 -                                 scope: &crossbeam::Scope<'a>)
[INFO] [stdout] 343 +                                 scope: &Scope<'a>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ScopedJoinHandle` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:668:32
[INFO] [stdout]     |
[INFO] [stdout] 668 | type WriterThread = crossbeam::ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::ScopedJoinHandle;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::ScopedJoinHandle;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `ScopedJoinHandle`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 668 - type WriterThread = crossbeam::ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout] 668 + type WriterThread = ScopedJoinHandle<io::Result<()>>;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Scope` in crate `crossbeam`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:671:51
[INFO] [stdout]     |
[INFO] [stdout] 671 | ...                   scope: &crossbeam::Scope<'a>)
[INFO] [stdout]     |                                          ^^^^^ not found in `crossbeam`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use crossbeam::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::thread::Scope;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Scope`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 671 -                                scope: &crossbeam::Scope<'a>)
[INFO] [stdout] 671 +                                scope: &Scope<'a>)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:229:33
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let left_joiner = scope.spawn(|| left.inner.exec(left_context));
[INFO] [stdout]     |                                 ^^^^^ -- takes 0 arguments
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 expected closure that takes 1 argument
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the closure to take and ignore the expected argument
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let left_joiner = scope.spawn(|_| left.inner.exec(left_context));
[INFO] [stdout]     |                                       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/duct-0.4.0/src/lib.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |       fn with_child_context<F>(&self, parent_context: IoContext, inner: F) -> io::Result<Status>
[INFO] [stdout]     |                                                                               ------------------ expected `Result<i32, std::io::Error>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 268 | /         crossbeam::scope(|scope| {
[INFO] [stdout] 269 | |             let mut context = parent_context;  // move it into the closure
[INFO] [stdout] 270 | |             let mut maybe_stdin_thread = None;
[INFO] [stdout] 271 | |             let mut unchecked = false;
[INFO] [stdout] ...   |
[INFO] [stdout] 325 | |             }
[INFO] [stdout] 326 | |         })
[INFO] [stdout]     | |__________^ expected `Result<i32, Error>`, found `Result<Result<i32, _>, Box<...>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<i32, std::io::Error>`
[INFO] [stdout]                found enum `Result<Result<i32, _>, Box<(dyn Any + Send + 'static)>>`
[INFO] [stdout] help: use the `?` operator to extract the `Result<Result<i32, _>, Box<(dyn Any + Send + 'static)>>` value, propagating a `Result::Err` value to the caller
[INFO] [stdout]     |
[INFO] [stdout] 326 |         })?
[INFO] [stdout]     |           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0593.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `duct` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e52264412a449b6319e1675688ddf1557d00be949641af520c48cb5f1b16d08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e52264412a449b6319e1675688ddf1557d00be949641af520c48cb5f1b16d08d", kill_on_drop: false }`
[INFO] [stdout] e52264412a449b6319e1675688ddf1557d00be949641af520c48cb5f1b16d08d
