[INFO] fetching crate combine-language 4.0.0...
[INFO] checking combine-language-4.0.0 against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] extracting crate combine-language 4.0.0 into /workspace/builds/worker-2-tc1/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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate combine-language 4.0.0 on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded rand_core v0.3.2
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.8
[INFO] [stderr]   Downloaded skeptic v0.9.0
[INFO] [stderr]   Downloaded rand_core v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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] af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8
[INFO] running `Command { std: "docker" "start" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8", 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" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8", 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" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "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 bitflags v0.5.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking bytes v1.12.1
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stderr]     Checking pulldown-cmark v0.0.8
[INFO] [stderr]     Checking combine v4.6.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking skeptic v0.9.0
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.82s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.5.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 10`
[INFO] running `Command { std: "docker" "inspect" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8", kill_on_drop: false }`
[INFO] [stdout] af9e1c87ce6f0004eb4cfbc9cd8f5257b826daa5532f9081fd09d07b4139cbb8
