[INFO] updating cached repository https://github.com/danger/rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0f9603f57edae1b0e333d15dbba053e6cfc5e7b
[INFO] checking danger/rust against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanger%2Frust" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danger/rust on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/danger/rust
[INFO] finished tweaking git repo https://github.com/danger/rust
[INFO] tweaked toml for git repo https://github.com/danger/rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/danger/rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1d2bdc823b2cf1433b51110f0ffb62962c5d4159bb6b6db2944f9f453eb7782
[INFO] running `"docker" "start" "-a" "a1d2bdc823b2cf1433b51110f0ffb62962c5d4159bb6b6db2944f9f453eb7782"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking encoding_rs v0.8.10
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.13
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]    Compiling Inflector v0.6.0
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[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 serde_derive v1.0.80
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking 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/rustwide/target/debug/build/schemafy-9b15d8c2f847dffa/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 '914adf04af1c1a984707f778da3d04590c03d144'
[INFO] [stderr] To install, run `rustup component add rustfmt --toolchain 914adf04af1c1a984707f778da3d04590c03d144`
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/schemafy-0.4.4/build.rs:22:20
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5647ed1eba24 - backtrace::backtrace::libunwind::trace::h98d3444f0ad70429
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5647ed1eba24 - backtrace::backtrace::trace_unsynchronized::h37f821d20053e6cd
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5647ed1eba24 - std::sys_common::backtrace::_print_fmt::hff04dc7e915a3c85
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5647ed1eba24 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h61891c439a79f00d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5647ed2129ac - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x5647ed1e93d3 - std::io::Write::write_fmt::h55f7fe3633ce766f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x5647ed1edfc5 - std::sys_common::backtrace::_print::h78339381acb79e1b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5647ed1edfc5 - std::sys_common::backtrace::print::h525aa9f9405c80a1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5647ed1edfc5 - std::panicking::default_hook::{{closure}}::hace90b8a218287e6
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5647ed1edd17 - std::panicking::default_hook::h160b6beccc49b335
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5647ed1ee5b8 - std::panicking::rust_panic_with_hook::h36f6804eea3f553a
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x5647ed1ee1bb - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x5647ed211121 - core::panicking::panic_fmt::hd101a87121fa411f
[INFO] [stderr]                                at src/libcore/panicking.rs:101
[INFO] [stderr]   13:     0x5647ed210f43 - core::option::expect_none_failed::h4f0e89faa3179bf7
[INFO] [stderr]                                at src/libcore/option.rs:1272
[INFO] [stderr]   14:     0x5647ed1228cb - core::result::Result<T,E>::unwrap::h9b238888521c0abb
[INFO] [stderr]                                at /rustc/914adf04af1c1a984707f778da3d04590c03d144/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x5647ed121d0e - build_script_build::main::h7d2312aaf9199447
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/schemafy-0.4.4/build.rs:22
[INFO] [stderr]   16:     0x5647ed122ceb - std::rt::lang_start::{{closure}}::h718834450521f95e
[INFO] [stderr]                                at /rustc/914adf04af1c1a984707f778da3d04590c03d144/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x5647ed1ee9a9 - std::rt::lang_start_internal::{{closure}}::h7c7701ace7781644
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x5647ed1ee9a9 - std::panicking::try::do_call::h25761ef781a3cec3
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x5647ed1ee9a9 - std::panicking::try::hc2ed2ebc2df17cc1
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x5647ed1ee9a9 - std::panic::catch_unwind::h548ef5f09b7c73ca
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x5647ed1ee9a9 - std::rt::lang_start_internal::h9a98dc8e2c22711e
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x5647ed122cc7 - std::rt::lang_start::h3e192bea00d204ad
[INFO] [stderr]                                at /rustc/914adf04af1c1a984707f778da3d04590c03d144/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x5647ed121eaa - main
[INFO] [stderr]   24:     0x7ff61ac690b3 - __libc_start_main
[INFO] [stderr]   25:     0x5647ed12117e - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "a1d2bdc823b2cf1433b51110f0ffb62962c5d4159bb6b6db2944f9f453eb7782"`
[INFO] running `"docker" "rm" "-f" "a1d2bdc823b2cf1433b51110f0ffb62962c5d4159bb6b6db2944f9f453eb7782"`
[INFO] [stdout] a1d2bdc823b2cf1433b51110f0ffb62962c5d4159bb6b6db2944f9f453eb7782