[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/beta-1.38-1/sources/1.37.0/gh/danger/rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/danger/rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/danger/rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/danger/rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/danger/rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f0f9603f57edae1b0e333d15dbba053e6cfc5e7b [INFO] sha for GitHub repo danger/rust: f0f9603f57edae1b0e333d15dbba053e6cfc5e7b [INFO] validating manifest of danger/rust on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of danger/rust on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/danger/rust/Cargo.toml [INFO] crate danger/rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing danger/rust against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 7ef37610de75b2e37ded18ecb821f9d99c8427a7a797900114b07dcb2461f107 [INFO] running `"docker" "start" "-a" "7ef37610de75b2e37ded18ecb821f9d99c8427a7a797900114b07dcb2461f107"` [INFO] [stderr] Compiling memchr v0.1.11 [INFO] [stderr] Compiling log v0.4.5 [INFO] [stderr] Compiling thread-id v2.0.0 [INFO] [stderr] Compiling syn v0.15.13 [INFO] [stderr] Compiling openssl v0.10.15 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling tokio-threadpool v0.1.8 [INFO] [stderr] Compiling want v0.0.6 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling h2 v0.1.13 [INFO] [stderr] Compiling tokio-reactor v0.1.6 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-fs v0.1.4 [INFO] [stderr] Compiling tokio-uds v0.2.3 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling Inflector v0.6.0 [INFO] [stderr] Compiling tokio v0.1.11 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling native-tls v0.2.2 [INFO] [stderr] Compiling hyper v0.12.12 [INFO] [stderr] Compiling hyper-tls v0.3.1 [INFO] [stderr] Compiling reqwest v0.9.3 [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] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/schemafy-43da65f5a0c64b4a/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 '1.37.0-x86_64-unknown-linux-gnu' [INFO] [stderr] To install, run `rustup component add rustfmt --toolchain 1.37.0-x86_64-unknown-linux-gnu` [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:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x562e373a91fb - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x562e373a91fb - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x562e373a91fb - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x562e373a91fb - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x562e373a91fb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x562e373a8ed7 - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x562e373a98c0 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x562e373a9442 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x562e373a9326 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x562e373c5b9d - core::panicking::panic_fmt::h2daf88b2616ca2b2 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x562e372ac173 - core::result::unwrap_failed::ha3d25c5821ae3d0d [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x562e372ac3f8 - core::result::Result::unwrap::h074f8366f4720120 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x562e372acfe2 - build_script_build::main::h1097e0a1a8338ce4 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/schemafy-0.4.4/build.rs:22 [INFO] [stderr] 13: 0x562e372adb20 - std::rt::lang_start::{{closure}}::h603713c5d2dd9c02 [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x562e373a9313 - std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x562e373a9313 - std::panicking::try::do_call::h4a61cb372364c745 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x562e373af56a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x562e373a9dcd - std::panicking::try::hdf71f938885bca42 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x562e373a9dcd - std::panic::catch_unwind::h7e85dbf162b1611a [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x562e373a9dcd - std::rt::lang_start_internal::h1e06cc26b9fc25ea [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x562e372adaf9 - std::rt::lang_start::haa90ce4971b3bc6e [INFO] [stderr] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x562e372ad14a - main [INFO] [stderr] 22: 0x7fae2ca822e1 - __libc_start_main [INFO] [stderr] 23: 0x562e372ab62a - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "7ef37610de75b2e37ded18ecb821f9d99c8427a7a797900114b07dcb2461f107"` [INFO] running `"docker" "rm" "-f" "7ef37610de75b2e37ded18ecb821f9d99c8427a7a797900114b07dcb2461f107"` [INFO] [stdout] 7ef37610de75b2e37ded18ecb821f9d99c8427a7a797900114b07dcb2461f107