[INFO] updating cached repository cyberbono3/edcon2019-bellmanworkshop
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cyberbono3/edcon2019-bellmanworkshop
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cyberbono3/edcon2019-bellmanworkshop" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/cyberbono3/edcon2019-bellmanworkshop"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/cyberbono3/edcon2019-bellmanworkshop'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cyberbono3/edcon2019-bellmanworkshop" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/cyberbono3/edcon2019-bellmanworkshop"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/cyberbono3/edcon2019-bellmanworkshop'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be4bb9a6d7af8f5421cc968b0eaf2e0082f080db
[INFO] sha for GitHub repo cyberbono3/edcon2019-bellmanworkshop: be4bb9a6d7af8f5421cc968b0eaf2e0082f080db
[INFO] validating manifest of cyberbono3/edcon2019-bellmanworkshop on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cyberbono3/edcon2019-bellmanworkshop on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cyberbono3/edcon2019-bellmanworkshop
[INFO] finished frobbing cyberbono3/edcon2019-bellmanworkshop
[INFO] frobbed toml for cyberbono3/edcon2019-bellmanworkshop written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/cyberbono3/edcon2019-bellmanworkshop/Cargo.toml
[INFO] started frobbing cyberbono3/edcon2019-bellmanworkshop
[INFO] finished frobbing cyberbono3/edcon2019-bellmanworkshop
[INFO] frobbed toml for cyberbono3/edcon2019-bellmanworkshop written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/cyberbono3/edcon2019-bellmanworkshop/Cargo.toml
[INFO] crate cyberbono3/edcon2019-bellmanworkshop already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cyberbono3/edcon2019-bellmanworkshop against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-6/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/cyberbono3/edcon2019-bellmanworkshop:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6bc9b2d17f4c366d88c157de4c1e68d24e542f447b546e46a0d68dc0ad12820f
[INFO] running `"docker" "start" "-a" "6bc9b2d17f4c366d88c157de4c1e68d24e542f447b546e46a0d68dc0ad12820f"`
[INFO] [stderr] error: failed to load source for a dependency on `bellman`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/matterinc/bellman?tag=0.2.0#6e45a4b2
[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" "6bc9b2d17f4c366d88c157de4c1e68d24e542f447b546e46a0d68dc0ad12820f"`
[INFO] running `"docker" "rm" "-f" "6bc9b2d17f4c366d88c157de4c1e68d24e542f447b546e46a0d68dc0ad12820f"`
[INFO] [stdout] 6bc9b2d17f4c366d88c157de4c1e68d24e542f447b546e46a0d68dc0ad12820f