[INFO] updating cached repository r-darwish/topgrade
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/r-darwish/topgrade
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/r-darwish/topgrade" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/r-darwish/topgrade"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/r-darwish/topgrade'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/r-darwish/topgrade" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/r-darwish/topgrade"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/r-darwish/topgrade'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c916b2920d28c929badd4947f1beed367508d1ea
[INFO] sha for GitHub repo r-darwish/topgrade: c916b2920d28c929badd4947f1beed367508d1ea
[INFO] validating manifest of r-darwish/topgrade on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of r-darwish/topgrade on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing r-darwish/topgrade
[INFO] finished frobbing r-darwish/topgrade
[INFO] frobbed toml for r-darwish/topgrade written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/r-darwish/topgrade/Cargo.toml
[INFO] started frobbing r-darwish/topgrade
[INFO] finished frobbing r-darwish/topgrade
[INFO] frobbed toml for r-darwish/topgrade written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/r-darwish/topgrade/Cargo.toml
[INFO] crate r-darwish/topgrade has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking r-darwish/topgrade against try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-0/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/r-darwish/topgrade:/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" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9cf2fda6d271f14ccd887ff447c02f441e23294975a6ec034197566b795f0e4
[INFO] running `"docker" "start" "-a" "a9cf2fda6d271f14ccd887ff447c02f441e23294975a6ec034197566b795f0e4"`
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v0.3.1
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking backtrace v0.3.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking console v0.7.1
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking topgrade v1.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.56s
[INFO] running `"docker" "inspect" "a9cf2fda6d271f14ccd887ff447c02f441e23294975a6ec034197566b795f0e4"`
[INFO] running `"docker" "rm" "-f" "a9cf2fda6d271f14ccd887ff447c02f441e23294975a6ec034197566b795f0e4"`
[INFO] [stdout] a9cf2fda6d271f14ccd887ff447c02f441e23294975a6ec034197566b795f0e4