[INFO] updating cached repository casperin/ascii_compressor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/casperin/ascii_compressor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/casperin/ascii_compressor" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casperin/ascii_compressor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casperin/ascii_compressor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/casperin/ascii_compressor" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casperin/ascii_compressor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casperin/ascii_compressor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7ffd0d0e5f9c41ca972dc7521b68b183f589b8c5
[INFO] sha for GitHub repo casperin/ascii_compressor: 7ffd0d0e5f9c41ca972dc7521b68b183f589b8c5
[INFO] validating manifest of casperin/ascii_compressor on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of casperin/ascii_compressor on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing casperin/ascii_compressor
[INFO] finished frobbing casperin/ascii_compressor
[INFO] frobbed toml for casperin/ascii_compressor written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/casperin/ascii_compressor/Cargo.toml
[INFO] started frobbing casperin/ascii_compressor
[INFO] finished frobbing casperin/ascii_compressor
[INFO] frobbed toml for casperin/ascii_compressor written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casperin/ascii_compressor/Cargo.toml
[INFO] crate casperin/ascii_compressor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking casperin/ascii_compressor against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/casperin/ascii_compressor:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0c7c01bac881dd1d3e74fd9822ecfc8391eeae10ccd10564abb93af025d81f90
[INFO] running `"docker" "start" "-a" "0c7c01bac881dd1d3e74fd9822ecfc8391eeae10ccd10564abb93af025d81f90"`
[INFO] [stderr]     Checking ascii_compressor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "0c7c01bac881dd1d3e74fd9822ecfc8391eeae10ccd10564abb93af025d81f90"`
[INFO] running `"docker" "rm" "-f" "0c7c01bac881dd1d3e74fd9822ecfc8391eeae10ccd10564abb93af025d81f90"`
[INFO] [stdout] 0c7c01bac881dd1d3e74fd9822ecfc8391eeae10ccd10564abb93af025d81f90