[INFO] updating cached repository devnought/combine-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/devnought/combine-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/devnought/combine-test" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/devnought/combine-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/devnought/combine-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/devnought/combine-test" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/devnought/combine-test"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/devnought/combine-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8ac868fca517438a93499fc7cf4f089e53e61e0
[INFO] sha for GitHub repo devnought/combine-test: e8ac868fca517438a93499fc7cf4f089e53e61e0
[INFO] validating manifest of devnought/combine-test on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of devnought/combine-test on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing devnought/combine-test
[INFO] finished frobbing devnought/combine-test
[INFO] frobbed toml for devnought/combine-test written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/devnought/combine-test/Cargo.toml
[INFO] started frobbing devnought/combine-test
[INFO] finished frobbing devnought/combine-test
[INFO] frobbed toml for devnought/combine-test written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/devnought/combine-test/Cargo.toml
[INFO] crate devnought/combine-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking devnought/combine-test against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-1/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/devnought/combine-test:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2635e8e0411816f100ad708afe755bf2a1aa3d449a28920021f4302b1126a967
[INFO] running `"docker" "start" "-a" "2635e8e0411816f100ad708afe755bf2a1aa3d449a28920021f4302b1126a967"`
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking combine-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `many1`, `many`, `satisfy`, `take_until_range`, `token`
[INFO] [stderr]   --> src/main.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  |     many, many1,
[INFO] [stderr]    |     ^^^^  ^^^^^
[INFO] [stderr] 9  |     range::{range, take_until_range, take_while, take_while1},
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 10 |     satisfy, skip_many, skip_many1,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 11 |     stream::state::State,
[INFO] [stderr] 12 |     token, ParseError, Parser, RangeStream,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `many1`, `many`, `satisfy`, `take_until_range`, `token`
[INFO] [stderr]   --> src/main.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  |     many, many1,
[INFO] [stderr]    |     ^^^^  ^^^^^
[INFO] [stderr] 9  |     range::{range, take_until_range, take_while, take_while1},
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 10 |     satisfy, skip_many, skip_many1,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 11 |     stream::state::State,
[INFO] [stderr] 12 |     token, ParseError, Parser, RangeStream,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     dbg!(res);
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     dbg!(res);
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.76s
[INFO] running `"docker" "inspect" "2635e8e0411816f100ad708afe755bf2a1aa3d449a28920021f4302b1126a967"`
[INFO] running `"docker" "rm" "-f" "2635e8e0411816f100ad708afe755bf2a1aa3d449a28920021f4302b1126a967"`
[INFO] [stdout] 2635e8e0411816f100ad708afe755bf2a1aa3d449a28920021f4302b1126a967