[INFO] updating cached repository danger/rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/danger/rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/danger/rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danger/rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danger/rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/danger/rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danger/rust"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danger/rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 12953a2a931882972a1dd3e2056ab63199b40745 [INFO] sha for GitHub repo danger/rust: 12953a2a931882972a1dd3e2056ab63199b40745 [INFO] validating manifest of danger/rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of danger/rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing danger/rust [INFO] finished frobbing danger/rust [INFO] frobbed toml for danger/rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danger/rust/Cargo.toml [INFO] started frobbing danger/rust [INFO] finished frobbing danger/rust [INFO] frobbed toml for danger/rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danger/rust/Cargo.toml [INFO] crate danger/rust has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing danger/rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danger/rust:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] 23adc669f920a16a1cd47b63744deb993bbbc48e871f6e8c306b4310bc374a37 [INFO] running `"docker" "start" "-a" "23adc669f920a16a1cd47b63744deb993bbbc48e871f6e8c306b4310bc374a37"` [INFO] [stderr] Compiling syn v0.15.13 [INFO] [stderr] Compiling Inflector v0.6.0 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling schemafy_snapshot v0.4.1 [INFO] [stderr] Compiling schemafy v0.4.4 [INFO] [stderr] error: failed to run custom build command for `schemafy v0.4.4` [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/schemafy-1a1c8a5720429e5f/build-script-build` (exit code: 101) [INFO] [stderr] --- stdout [INFO] [stderr] cargo:rerun-if-changed=src/schema.json [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] error: 'rustfmt' is not installed for the toolchain 'c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt' [INFO] [stderr] To install, run `rustup component add rustfmt` [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:997:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5624657c8dc3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hb587d2734f1dc7c5 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x5624657c4dbb - std::sys_common::backtrace::_print::he39717f7cfbd122d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:70 [INFO] [stderr] 2: 0x5624657c7bc6 - std::panicking::default_hook::{{closure}}::hb7f1ae5149814e5e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:58 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 3: 0x5624657c7944 - std::panicking::default_hook::hc2b73d8ffc772b35 [INFO] [stderr] at src/libstd/panicking.rs:215 [INFO] [stderr] 4: 0x5624657c8220 - std::panicking::rust_panic_with_hook::h625072734a147d22 [INFO] [stderr] at src/libstd/panicking.rs:478 [INFO] [stderr] 5: 0x5624657c7da1 - std::panicking::continue_panic_fmt::h3d3b66f689c3e04e [INFO] [stderr] at src/libstd/panicking.rs:385 [INFO] [stderr] 6: 0x5624657c7c85 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:312 [INFO] [stderr] 7: 0x5624657e075c - core::panicking::panic_fmt::h3dc182ff7fefc0c0 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 8: 0x5624656d2952 - core::result::unwrap_failed::h7b3c09b20e2d5e9b [INFO] [stderr] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/macros.rs:16 [INFO] [stderr] 9: 0x5624656d2356 - >::unwrap::h558a135bad8578b6 [INFO] [stderr] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libcore/result.rs:798 [INFO] [stderr] 10: 0x5624656d3651 - build_script_build::main::h973801e3e2417782 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/schemafy-0.4.4/build.rs:22 [INFO] [stderr] 11: 0x5624656d3c0f - std::rt::lang_start::{{closure}}::h9570171b2ddac58b [INFO] [stderr] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/rt.rs:64 [INFO] [stderr] 12: 0x5624657c7c72 - std::panicking::try::do_call::ha6d3d6f6b5f6c5f2 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:297 [INFO] [stderr] 13: 0x5624657ce509 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:92 [INFO] [stderr] 14: 0x5624657c8755 - std::rt::lang_start_internal::hc755040b17518fe7 [INFO] [stderr] at src/libstd/panicking.rs:276 [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 15: 0x5624656d3be8 - std::rt::lang_start::he5b1a32f12e4797f [INFO] [stderr] at /rustc/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/src/libstd/rt.rs:64 [INFO] [stderr] 16: 0x5624656d37b9 - main [INFO] [stderr] 17: 0x7f78f07972e0 - __libc_start_main [INFO] [stderr] 18: 0x5624656d16e9 - _start [INFO] [stderr] 19: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "23adc669f920a16a1cd47b63744deb993bbbc48e871f6e8c306b4310bc374a37"` [INFO] running `"docker" "rm" "-f" "23adc669f920a16a1cd47b63744deb993bbbc48e871f6e8c306b4310bc374a37"` [INFO] [stdout] 23adc669f920a16a1cd47b63744deb993bbbc48e871f6e8c306b4310bc374a37