[INFO] updating cached repository dotboris/alt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dotboris/alt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dotboris/alt" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dotboris/alt"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dotboris/alt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dotboris/alt" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dotboris/alt"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dotboris/alt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d24bfbafb2f5f5f1978074f47692cb2ef18389b7
[INFO] sha for GitHub repo dotboris/alt: d24bfbafb2f5f5f1978074f47692cb2ef18389b7
[INFO] validating manifest of dotboris/alt 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 dotboris/alt 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 dotboris/alt
[INFO] finished frobbing dotboris/alt
[INFO] frobbed toml for dotboris/alt written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/dotboris/alt/Cargo.toml
[INFO] started frobbing dotboris/alt
[INFO] finished frobbing dotboris/alt
[INFO] frobbed toml for dotboris/alt written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dotboris/alt/Cargo.toml
[INFO] crate dotboris/alt 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 dotboris/alt against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/dotboris/alt:/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] d8ee199e05b028ac06d52ae817dcfc372747a51d2f3ed0b929a0c94038b113da
[INFO] running `"docker" "start" "-a" "d8ee199e05b028ac06d52ae817dcfc372747a51d2f3ed0b929a0c94038b113da"`
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking serde v1.0.80
[INFO] [stderr]     Checking rand v0.6.4
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking dialoguer v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]    Compiling alt v1.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr] warning: static variable `env_mutex` should have an upper case name
[INFO] [stderr]   --> src/config.rs:34:20
[INFO] [stderr]    |
[INFO] [stderr] 34 |         static ref env_mutex: Mutex<()> = Mutex::new(());
[INFO] [stderr]    |                    ^^^^^^^^^ help: convert the identifier to upper case: `ENV_MUTEX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.53s
[INFO] running `"docker" "inspect" "d8ee199e05b028ac06d52ae817dcfc372747a51d2f3ed0b929a0c94038b113da"`
[INFO] running `"docker" "rm" "-f" "d8ee199e05b028ac06d52ae817dcfc372747a51d2f3ed0b929a0c94038b113da"`
[INFO] [stdout] d8ee199e05b028ac06d52ae817dcfc372747a51d2f3ed0b929a0c94038b113da