[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-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/danger/rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/danger/rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/danger/rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/danger/rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/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 master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of danger/rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-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-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/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-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/danger/rust/Cargo.toml
[INFO] crate danger/rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking danger/rust against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-0/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/danger/rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f3f5c9d9c274d470be0757a0bd1d44f811e97ceafa7236e63cc1d78a8a40a0eb
[INFO] running `"docker" "start" "-a" "f3f5c9d9c274d470be0757a0bd1d44f811e97ceafa7236e63cc1d78a8a40a0eb"`
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]     Checking Inflector v0.6.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.13
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]     Checking hyper v0.12.12
[INFO] [stderr]    Compiling schemafy_snapshot v0.4.1
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]    Compiling schemafy v0.4.4
[INFO] [stderr]     Checking reqwest v0.9.3
[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-8fcf089bde9dd8bd/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 'a850a426491e14186af2250549bf41256b5938d2-alt'
[INFO] [stderr] To install, run `rustup component add rustfmt --toolchain a850a426491e14186af2250549bf41256b5938d2-alt`
[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:     0x55c9e8c30c63 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h2fed620c63d566d5
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55c9e8c2ca4b - std::sys_common::backtrace::_print::hbcf4a8a33d23e6eb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55c9e8c2faf6 - std::panicking::default_hook::{{closure}}::hb6060c4fcab16a41
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55c9e8c2f889 - std::panicking::default_hook::h2aa3eab10c226995
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55c9e8c3014f - std::panicking::rust_panic_with_hook::h996942209ba041ab
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55c9e8c2fcd1 - std::panicking::continue_panic_fmt::h32c075acce10620e
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55c9e8c2fbb5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x55c9e8c4825c - core::panicking::panic_fmt::h4f345ac84263d92a
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x55c9e8b3b8e2 - core::result::unwrap_failed::h60708ca8065e9079
[INFO] [stderr]                                at /rustc/a850a426491e14186af2250549bf41256b5938d2/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x55c9e8b3bad6 - core::result::Result<T,E>::unwrap::h6bfba15fb0bae612
[INFO] [stderr]                                at /rustc/a850a426491e14186af2250549bf41256b5938d2/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x55c9e8b3cb91 - build_script_build::main::hfcea48d7894c7738
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/schemafy-0.4.4/build.rs:22
[INFO] [stderr]   11:     0x55c9e8b3d14f - std::rt::lang_start::{{closure}}::h04cc232d3692bc84
[INFO] [stderr]                                at /rustc/a850a426491e14186af2250549bf41256b5938d2/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55c9e8c2fba2 - std::panicking::try::do_call::hbee74efdae64ccf0
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x55c9e8c36199 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x55c9e8c3065c - std::rt::lang_start_internal::hd6198533d727f486
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x55c9e8b3d128 - std::rt::lang_start::h716e8cbe1a5f7172
[INFO] [stderr]                                at /rustc/a850a426491e14186af2250549bf41256b5938d2/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x55c9e8b3ccf9 - main
[INFO] [stderr]   17:     0x7f620896b2e0 - __libc_start_main
[INFO] [stderr]   18:     0x55c9e8b3ac49 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f3f5c9d9c274d470be0757a0bd1d44f811e97ceafa7236e63cc1d78a8a40a0eb"`
[INFO] running `"docker" "rm" "-f" "f3f5c9d9c274d470be0757a0bd1d44f811e97ceafa7236e63cc1d78a8a40a0eb"`
[INFO] [stdout] f3f5c9d9c274d470be0757a0bd1d44f811e97ceafa7236e63cc1d78a8a40a0eb