[INFO] fetching crate ferrous_threads 0.1.1...
[INFO] testing ferrous_threads-0.1.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate ferrous_threads 0.1.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate ferrous_threads 0.1.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ferrous_threads 0.1.1
[INFO] finished tweaking crates.io crate ferrous_threads 0.1.1
[INFO] tweaked toml for crates.io crate ferrous_threads 0.1.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded canal v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c176ba7f556803c4c4fc2e2d10386e6c59b0da6c806bb9e5f0f1a7453e2b64f2
[INFO] running `Command { std: "docker" "start" "-a" "c176ba7f556803c4c4fc2e2d10386e6c59b0da6c806bb9e5f0f1a7453e2b64f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c176ba7f556803c4c4fc2e2d10386e6c59b0da6c806bb9e5f0f1a7453e2b64f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c176ba7f556803c4c4fc2e2d10386e6c59b0da6c806bb9e5f0f1a7453e2b64f2", kill_on_drop: false }`
[INFO] [stdout] c176ba7f556803c4c4fc2e2d10386e6c59b0da6c806bb9e5f0f1a7453e2b64f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1c82f8487423e366bcc4a7a2e7937d35c3abcdddc728af6bd7dcde01e4c71b5
[INFO] running `Command { std: "docker" "start" "-a" "c1c82f8487423e366bcc4a7a2e7937d35c3abcdddc728af6bd7dcde01e4c71b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling canal v0.1.2
[INFO] [stderr]    Compiling ferrous_threads v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]   --> src/task_runner.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | 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/thread_pool.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use std::boxed::FnBox;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `catch_panic` in module `thread`
[INFO] [stdout]    --> src/thread_pool.rs:258:31
[INFO] [stdout]     |
[INFO] [stdout] 258 |             let res = thread::catch_panic(move || { job.run(); });
[INFO] [stdout]     |                               ^^^^^^^^^^^ not found in `thread`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fnbox)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(drain)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(catch_panic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/task_runner.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |     task_func: Box<FnBox() + Send + 'a>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox() + Send + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type Proc<'a> = Box<Runner + Send + 'a>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runner + Send + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/thread_pool.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |             try!(self.free_chan.send(thread));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/thread_pool.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |             try!(res_sender.send(res));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/thread_pool.rs:257:23
[INFO] [stdout]     |
[INFO] [stdout] 257 |             let job = try!(jobs.recv());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferrous_threads` due to 8 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c1c82f8487423e366bcc4a7a2e7937d35c3abcdddc728af6bd7dcde01e4c71b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c82f8487423e366bcc4a7a2e7937d35c3abcdddc728af6bd7dcde01e4c71b5", kill_on_drop: false }`
[INFO] [stdout] c1c82f8487423e366bcc4a7a2e7937d35c3abcdddc728af6bd7dcde01e4c71b5
