[INFO] updating cached repository fkaa/curve_fit_test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fkaa/curve_fit_test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fkaa/curve_fit_test" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/fkaa/curve_fit_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/fkaa/curve_fit_test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fkaa/curve_fit_test" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/fkaa/curve_fit_test"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/fkaa/curve_fit_test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50a07aa3291b48aebbf69d7c18dfe9e7fa8f60b0
[INFO] sha for GitHub repo fkaa/curve_fit_test: 50a07aa3291b48aebbf69d7c18dfe9e7fa8f60b0
[INFO] validating manifest of fkaa/curve_fit_test on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fkaa/curve_fit_test on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fkaa/curve_fit_test
[INFO] finished frobbing fkaa/curve_fit_test
[INFO] frobbed toml for fkaa/curve_fit_test written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/fkaa/curve_fit_test/Cargo.toml
[INFO] started frobbing fkaa/curve_fit_test
[INFO] finished frobbing fkaa/curve_fit_test
[INFO] frobbed toml for fkaa/curve_fit_test written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/fkaa/curve_fit_test/Cargo.toml
[INFO] crate fkaa/curve_fit_test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fkaa/curve_fit_test against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-5/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/fkaa/curve_fit_test:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6629e0e6997209b2059fa7818dd3de784fa4c730b8a4ff5e21f52e7760d01d41
[INFO] running `"docker" "start" "-a" "6629e0e6997209b2059fa7818dd3de784fa4c730b8a4ff5e21f52e7760d01d41"`
[INFO] [stderr] error: failed to load source for a dependency on `font-kit`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/fkaa/font-kit/?branch=freetype-fix#c0ec9813
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to open: /opt/crater/cargo-home/git/.cargo-lock-git
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `"docker" "inspect" "6629e0e6997209b2059fa7818dd3de784fa4c730b8a4ff5e21f52e7760d01d41"`
[INFO] running `"docker" "rm" "-f" "6629e0e6997209b2059fa7818dd3de784fa4c730b8a4ff5e21f52e7760d01d41"`
[INFO] [stdout] 6629e0e6997209b2059fa7818dd3de784fa4c730b8a4ff5e21f52e7760d01d41