[INFO] fetching crate railway 0.2.3...
[INFO] checking railway-0.2.3 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate railway 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate railway 0.2.3 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate railway 0.2.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate railway 0.2.3
[INFO] tweaked toml for crates.io crate railway 0.2.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate railway 0.2.3 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vek v0.15.8
[INFO] [stderr]   Downloaded wizdraw v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 463cd7abbd524225b3342cda499ab7b79a652886eb4d7775a67ae58bb50bf59c
[INFO] running `Command { std: "docker" "start" "-a" "463cd7abbd524225b3342cda499ab7b79a652886eb4d7775a67ae58bb50bf59c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "463cd7abbd524225b3342cda499ab7b79a652886eb4d7775a67ae58bb50bf59c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463cd7abbd524225b3342cda499ab7b79a652886eb4d7775a67ae58bb50bf59c", kill_on_drop: false }`
[INFO] [stdout] 463cd7abbd524225b3342cda499ab7b79a652886eb4d7775a67ae58bb50bf59c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ed65d4ae05ee40f910c234601bc52e61f79706af2a4c7df8915d35004a1f71f
[INFO] running `Command { std: "docker" "start" "-a" "7ed65d4ae05ee40f910c234601bc52e61f79706af2a4c7df8915d35004a1f71f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]    Compiling vek v0.15.8
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking wizdraw v1.1.3
[INFO] [stderr]     Checking railway v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: expected a `FnMut<(&[u8],)>` closure, found `alloc::vec::Vec<_>`
[INFO] [stdout]    --> src/tests.rs:6:29
[INFO] [stdout]     |
[INFO] [stdout] 6   |     match sz == p.dump(&mut buffer).unwrap() {
[INFO] [stdout]     |                   ----      ^^^^^^ expected an `FnMut<(&[u8],)>` closure, found `alloc::vec::Vec<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> FnMut<(&'a [u8],)>` is not implemented for `alloc::vec::Vec<_>`
[INFO] [stdout]     = note: required for `&mut alloc::vec::Vec<_>` to implement `for<'a> FnMut<(&'a [u8],)>`
[INFO] [stdout] note: required by a bound in `Program::dump`
[INFO] [stdout]    --> src/lib.rs:108:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn dump<T, E>(&self, append_bytes: T) -> Result<usize, E>
[INFO] [stdout]     |            ---- required by a bound in this associated function
[INFO] [stdout] 108 |         where T: FnMut(&[u8]) -> Result<usize, E>
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Program::dump`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnOnce<(&[u8],)>` closure, found `alloc::vec::Vec<_>`
[INFO] [stdout]    --> src/tests.rs:6:24
[INFO] [stdout]     |
[INFO] [stdout] 6   |     match sz == p.dump(&mut buffer).unwrap() {
[INFO] [stdout]     |                   ---- ^^^^^^^^^^^ expected an `FnOnce<(&[u8],)>` closure, found `alloc::vec::Vec<_>`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `for<'a> FnOnce<(&'a [u8],)>` is not implemented for `alloc::vec::Vec<_>`
[INFO] [stdout] note: required by a bound in `Program::dump`
[INFO] [stdout]    --> src/lib.rs:108:34
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn dump<T, E>(&self, append_bytes: T) -> Result<usize, E>
[INFO] [stdout]     |            ---- required by a bound in this associated function
[INFO] [stdout] 108 |         where T: FnMut(&[u8]) -> Result<usize, E>
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ required by this bound in `Program::dump`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::real::Real`
[INFO] [stdout]   --> src/computing.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use num_traits::real::Real;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `railway` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7ed65d4ae05ee40f910c234601bc52e61f79706af2a4c7df8915d35004a1f71f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed65d4ae05ee40f910c234601bc52e61f79706af2a4c7df8915d35004a1f71f", kill_on_drop: false }`
[INFO] [stdout] 7ed65d4ae05ee40f910c234601bc52e61f79706af2a4c7df8915d35004a1f71f
