[INFO] fetching crate felloe 0.1.0...
[INFO] testing felloe-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate felloe 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate felloe 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-5/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" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "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] ce5adb1c0c37cdc6ad486504ca8f10eef425200f27167e5ad56968332ec1375d
[INFO] running `"docker" "start" "-a" "ce5adb1c0c37cdc6ad486504ca8f10eef425200f27167e5ad56968332ec1375d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[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 number_prefix v0.3.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling miniz_oxide v0.3.3
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling net2 v0.2.33
[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 filetime v0.2.7
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling console v0.9.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.19
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling indicatif v0.13.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling crossterm v0.13.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling tokio-reactor v0.1.10
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling publicsuffix v1.5.3
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling hyper v0.12.35
[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-c6e38db61549bde1/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:     0x561f38440c45 - backtrace::backtrace::libunwind::trace::h07c956be65d9b461
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x561f38440c45 - backtrace::backtrace::trace_unsynchronized::h2fdb9e4177ad4d20
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561f38440c45 - std::sys_common::backtrace::_print_fmt::ha62d8426311107ac
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x561f38440c45 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3ec6bdab62f1e8d9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x561f3845f93c - core::fmt::write::h935cb0ed4078a853
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x561f3843ec63 - std::io::Write::write_fmt::hc912aacf8d691eb3
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x561f38443150 - std::sys_common::backtrace::_print::h460db802d801ccf8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x561f38443150 - std::sys_common::backtrace::print::h399d664f56640530
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x561f38443150 - std::panicking::default_hook::{{closure}}::hc6dfd87957c765b8
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x561f38442e9c - std::panicking::default_hook::hfdceba6d6d1a18ae
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x561f38443737 - std::panicking::rust_panic_with_hook::hd01e282bff1b1e63
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x561f3844333b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x561f3845ed41 - core::panicking::panic_fmt::habd7df443069602c
[INFO] [stderr]                                at src/libcore/panicking.rs:101
[INFO] [stderr]   13:     0x561f3845eb63 - core::option::expect_none_failed::h721078758a086285
[INFO] [stderr]                                at src/libcore/option.rs:1272
[INFO] [stderr]   14:     0x561f383c8e90 - core::result::Result<T,E>::unwrap::h0bebb8225f88300f
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x561f383c55d1 - build_script_build::main::he1883e57784b55ea
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:21
[INFO] [stderr]   16:     0x561f383c977b - std::rt::lang_start::{{closure}}::hdff67bf507bba3e1
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x561f38443b08 - std::rt::lang_start_internal::{{closure}}::haabc9d435e1b0c2f
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x561f38443b08 - std::panicking::try::do_call::h54d9370b0ac83700
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x561f38443b08 - std::panicking::try::h85e1c41421d5b6f9
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x561f38443b08 - std::panic::catch_unwind::hfd957e6c9fdcf274
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x561f38443b08 - std::rt::lang_start_internal::hed9744eef32ef5a1
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x561f383c9757 - std::rt::lang_start::h22763aadfe367288
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x561f383c869a - main
[INFO] [stderr]   24:     0x7f6debbfa0b3 - __libc_start_main
[INFO] [stderr]   25:     0x561f383c519e - _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" "ce5adb1c0c37cdc6ad486504ca8f10eef425200f27167e5ad56968332ec1375d"`
[INFO] running `"docker" "rm" "-f" "ce5adb1c0c37cdc6ad486504ca8f10eef425200f27167e5ad56968332ec1375d"`
[INFO] [stdout] ce5adb1c0c37cdc6ad486504ca8f10eef425200f27167e5ad56968332ec1375d