[INFO] updating cached repository marcesquerra/cases
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/marcesquerra/cases
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/marcesquerra/cases" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/marcesquerra/cases"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/marcesquerra/cases'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/marcesquerra/cases" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/marcesquerra/cases"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/marcesquerra/cases'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 822a4fedc034d18a8ccdf6767f87d217431fd61d
[INFO] sha for GitHub repo marcesquerra/cases: 822a4fedc034d18a8ccdf6767f87d217431fd61d
[INFO] validating manifest of marcesquerra/cases 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 marcesquerra/cases 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 marcesquerra/cases
[INFO] finished frobbing marcesquerra/cases
[INFO] frobbed toml for marcesquerra/cases written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/marcesquerra/cases/Cargo.toml
[INFO] started frobbing marcesquerra/cases
[INFO] finished frobbing marcesquerra/cases
[INFO] frobbed toml for marcesquerra/cases written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/marcesquerra/cases/Cargo.toml
[INFO] crate marcesquerra/cases 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 marcesquerra/cases against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/marcesquerra/cases:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 391304211a79de69bfee5f5d4384313ba1dd1856f9b2f258e6db1871d75d8935
[INFO] running `"docker" "start" "-a" "391304211a79de69bfee5f5d4384313ba1dd1856f9b2f258e6db1871d75d8935"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]     Checking cases v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Upper`
[INFO] [stderr]    --> src/parser.rs:256:3
[INFO] [stderr]     |
[INFO] [stderr] 256 |   Upper,
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lower`
[INFO] [stderr]    --> src/parser.rs:257:3
[INFO] [stderr]     |
[INFO] [stderr] 257 |   Lower,
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `"docker" "inspect" "391304211a79de69bfee5f5d4384313ba1dd1856f9b2f258e6db1871d75d8935"`
[INFO] running `"docker" "rm" "-f" "391304211a79de69bfee5f5d4384313ba1dd1856f9b2f258e6db1871d75d8935"`
[INFO] [stdout] 391304211a79de69bfee5f5d4384313ba1dd1856f9b2f258e6db1871d75d8935