[INFO] updating cached repository jmatraszek/jrtr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jmatraszek/jrtr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jmatraszek/jrtr" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jmatraszek/jrtr"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jmatraszek/jrtr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jmatraszek/jrtr" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jmatraszek/jrtr"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jmatraszek/jrtr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1cded183cf9c5e7014250730e1797e19c1b52cf4
[INFO] sha for GitHub repo jmatraszek/jrtr: 1cded183cf9c5e7014250730e1797e19c1b52cf4
[INFO] validating manifest of jmatraszek/jrtr on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jmatraszek/jrtr on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jmatraszek/jrtr
[INFO] finished frobbing jmatraszek/jrtr
[INFO] frobbed toml for jmatraszek/jrtr written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/jmatraszek/jrtr/Cargo.toml
[INFO] started frobbing jmatraszek/jrtr
[INFO] finished frobbing jmatraszek/jrtr
[INFO] frobbed toml for jmatraszek/jrtr written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jmatraszek/jrtr/Cargo.toml
[INFO] crate jmatraszek/jrtr already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jmatraszek/jrtr against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/jmatraszek/jrtr:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f25095b7ea1a1475de769792ca9e7e1e1026919ffffc3dd71ee55d86a8c6b5a2
[INFO] running `"docker" "start" "-a" "f25095b7ea1a1475de769792ca9e7e1e1026919ffffc3dd71ee55d86a8c6b5a2"`
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.6.5
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking handlebars v0.32.4
[INFO] [stderr]     Checking jrtr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 |         Some(output) => {
[INFO] [stderr]    |              ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 |         Some(output) => {
[INFO] [stderr]    |              ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.13s
[INFO] running `"docker" "inspect" "f25095b7ea1a1475de769792ca9e7e1e1026919ffffc3dd71ee55d86a8c6b5a2"`
[INFO] running `"docker" "rm" "-f" "f25095b7ea1a1475de769792ca9e7e1e1026919ffffc3dd71ee55d86a8c6b5a2"`
[INFO] [stdout] f25095b7ea1a1475de769792ca9e7e1e1026919ffffc3dd71ee55d86a8c6b5a2