[INFO] updating cached repository DNABigBoss/rustlings-solutions
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DNABigBoss/rustlings-solutions
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DNABigBoss/rustlings-solutions" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DNABigBoss/rustlings-solutions"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DNABigBoss/rustlings-solutions'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DNABigBoss/rustlings-solutions" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DNABigBoss/rustlings-solutions"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DNABigBoss/rustlings-solutions'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e7f2d6c3f5bea0ff0dbecf87f4e4c6d3282cebe1
[INFO] sha for GitHub repo DNABigBoss/rustlings-solutions: e7f2d6c3f5bea0ff0dbecf87f4e4c6d3282cebe1
[INFO] validating manifest of DNABigBoss/rustlings-solutions 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 DNABigBoss/rustlings-solutions 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 DNABigBoss/rustlings-solutions
[INFO] finished frobbing DNABigBoss/rustlings-solutions
[INFO] frobbed toml for DNABigBoss/rustlings-solutions written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DNABigBoss/rustlings-solutions/Cargo.toml
[INFO] started frobbing DNABigBoss/rustlings-solutions
[INFO] finished frobbing DNABigBoss/rustlings-solutions
[INFO] frobbed toml for DNABigBoss/rustlings-solutions written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DNABigBoss/rustlings-solutions/Cargo.toml
[INFO] crate DNABigBoss/rustlings-solutions 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 DNABigBoss/rustlings-solutions 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/DNABigBoss/rustlings-solutions:/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] 457808744ac792d7ad5a5f771d8d50fd0ec7e0c784c11682835ac47eeb9d25c6
[INFO] running `"docker" "start" "-a" "457808744ac792d7ad5a5f771d8d50fd0ec7e0c784c11682835ac47eeb9d25c6"`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling bincode v1.1.2
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking predicates v1.0.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking notify v4.0.10
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]     Checking onig v4.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking plist v0.4.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking rustlings v1.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "457808744ac792d7ad5a5f771d8d50fd0ec7e0c784c11682835ac47eeb9d25c6"`
[INFO] running `"docker" "rm" "-f" "457808744ac792d7ad5a5f771d8d50fd0ec7e0c784c11682835ac47eeb9d25c6"`
[INFO] [stdout] 457808744ac792d7ad5a5f771d8d50fd0ec7e0c784c11682835ac47eeb9d25c6