[INFO] crate felloe 0.1.0 is already in cache
[INFO] testing felloe-0.1.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate felloe 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate felloe 0.1.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate felloe 0.1.0
[INFO] finished tweaking crates.io crate felloe 0.1.0
[INFO] tweaked toml for crates.io crate felloe 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate felloe 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9ae3a2512b89656e76cb8db5455b5fc9f114504ed86ea14728cbd525ade9c85
[INFO] running `"docker" "start" "-a" "e9ae3a2512b89656e76cb8db5455b5fc9f114504ed86ea14728cbd525ade9c85"`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling mime v0.3.14
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.3.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling memoffset v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling filetime v0.2.7
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling console v0.9.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.19
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling crossterm v0.13.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling indicatif v0.13.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.10
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling publicsuffix v1.5.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling structopt v0.3.3
[INFO] [stderr]    Compiling felloe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `felloe v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/felloe-af4036e3bfec1124/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:21:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55fec0a46ee4 - backtrace::backtrace::libunwind::trace::hbb4ce8c04526962e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55fec0a46ee4 - backtrace::backtrace::trace_unsynchronized::h79251c088e7be038
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55fec0a46ee4 - std::sys_common::backtrace::_print_fmt::h6b0ea30a9223acae
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55fec0a46ee4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4d51ef07ce58e54b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55fec0a666ec - core::fmt::write::he16b9c1345d8565e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x55fec0a45093 - std::io::Write::write_fmt::h35d873b9ce1f02a8
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x55fec0a49485 - std::sys_common::backtrace::_print::h9288fa7d9f6629cb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55fec0a49485 - std::sys_common::backtrace::print::h82e606e62781d8af
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55fec0a49485 - std::panicking::default_hook::{{closure}}::h1fe350ecbf7604e4
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55fec0a491c2 - std::panicking::default_hook::h1b8b42953fdc841d
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x55fec0a49a92 - std::panicking::rust_panic_with_hook::he73826f4bb75a21e
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x55fec0a4967b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x55fec0a65ad1 - core::panicking::panic_fmt::hc8f9a0b2af5fb585
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x55fec0a658f3 - core::option::expect_none_failed::ha34d57526cca3063
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x55fec09bbe50 - core::result::Result<T,E>::unwrap::h3ed8e3d9ebe0488b
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x55fec09b845e - build_script_build::main::hd10b6a2009e72c96
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:21
[INFO] [stderr]   16:     0x55fec09bd6ab - std::rt::lang_start::{{closure}}::h8834039e4f109c9d
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55fec0a49ed8 - std::rt::lang_start_internal::{{closure}}::h985f9ad0467016f1
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55fec0a49ed8 - std::panicking::try::do_call::hbcbbc645883681bb
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x55fec0a49ed8 - std::panicking::try::h250f86dc8ee6d054
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x55fec0a49ed8 - std::panic::catch_unwind::h58d26ced09bde6c3
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x55fec0a49ed8 - std::rt::lang_start_internal::h7de51dd9f16af454
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x55fec09bd687 - std::rt::lang_start::h448adc2ef508dc9a
[INFO] [stderr]                                at /rustc/28742a1146f10a4f09369baad027a464acb7a766/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x55fec09bb65a - main
[INFO] [stderr]   24:     0x7f89b7932b97 - __libc_start_main
[INFO] [stderr]   25:     0x55fec09b7f8a - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e9ae3a2512b89656e76cb8db5455b5fc9f114504ed86ea14728cbd525ade9c85"`
[INFO] running `"docker" "rm" "-f" "e9ae3a2512b89656e76cb8db5455b5fc9f114504ed86ea14728cbd525ade9c85"`
[INFO] [stdout] e9ae3a2512b89656e76cb8db5455b5fc9f114504ed86ea14728cbd525ade9c85