[INFO] fetching crate combine-language 4.0.0...
[INFO] checking combine-language-4.0.0 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate combine-language 4.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate combine-language 4.0.0
[INFO] finished tweaking crates.io crate combine-language 4.0.0
[INFO] tweaked toml for crates.io crate combine-language 4.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate combine-language 4.0.0 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to highest compatible versions
[INFO] [stderr]       Adding skeptic v0.9.0 (available: v0.14.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0
[INFO] running `Command { std: "docker" "start" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stderr]     Checking pulldown-cmark v0.0.8
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking skeptic v0.9.0
[INFO] [stderr]     Checking combine v4.6.9
[INFO] [stderr]    Compiling combine-language v4.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:211:27
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let linecomment: &mut (dyn Parser<I, Output = (), PartialState = _>) =
[INFO] [stdout]     |                           ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 211 -     let linecomment: &mut (dyn Parser<I, Output = (), PartialState = _>) =
[INFO] [stdout] 211 +     let linecomment: &mut dyn Parser<I, Output = (), PartialState = _> =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:211:27
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let linecomment: &mut (dyn Parser<I, Output = (), PartialState = _>) =
[INFO] [stdout]     |                           ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 211 -     let linecomment: &mut (dyn Parser<I, Output = (), PartialState = _>) =
[INFO] [stdout] 211 +     let linecomment: &mut dyn Parser<I, Output = (), PartialState = _> =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Result<(<P as Parser<Input>>::Output, Commit<()>), Commit<Tracked<_>>>`
[INFO] [stdout]    --> src/lib.rs:876:9
[INFO] [stdout]     |
[INFO] [stdout] 876 |         Ok((l, consumed)).into()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/combine-language/a96883d1fcc3a550/out/combine_language-a96883d1fcc3a550.long-type-17733641171765876452.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 876 -         Ok((l, consumed)).into()
[INFO] [stdout] 876 +         Ok((l, consumed))
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 876 -         Ok((l, consumed)).into()
[INFO] [stdout] 876 +         <Result<(<P as Parser<Input>>::Output, combine::error::Commit<()>), combine::error::Commit<Tracked<<Input as StreamOnce>::Error>>> as Into<_>>::into(Ok((l, consumed)))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `combine-language` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `Result<(<P as Parser<Input>>::Output, Commit<()>), Commit<Tracked<_>>>`
[INFO] [stdout]    --> src/lib.rs:876:9
[INFO] [stdout]     |
[INFO] [stdout] 876 |         Ok((l, consumed)).into()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/build/combine-language/062f4228d13c620d/out/combine_language-062f4228d13c620d.long-type-1161980940411060798.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 876 -         Ok((l, consumed)).into()
[INFO] [stdout] 876 +         Ok((l, consumed))
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 876 -         Ok((l, consumed)).into()
[INFO] [stdout] 876 +         <Result<(<P as combine::Parser<Input>>::Output, combine::error::Commit<()>), combine::error::Commit<Tracked<<Input as StreamOnce>::Error>>> as Into<_>>::into(Ok((l, consumed)))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `combine-language` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0", kill_on_drop: false }`
[INFO] [stdout] 15a89661fe4dd7ee05f899ba50c20df543aa5514dd9a5778ee7e1ea3809b02d0
