[INFO] updating cached repository saks/rustybin
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saks/rustybin
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saks/rustybin" "work/ex/beta-1.37-6/sources/1.36.0/gh/saks/rustybin"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/saks/rustybin'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saks/rustybin" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/saks/rustybin"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/saks/rustybin'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a7f585421217c2f8c903a579cdd93771a8dcd97a
[INFO] sha for GitHub repo saks/rustybin: a7f585421217c2f8c903a579cdd93771a8dcd97a
[INFO] validating manifest of saks/rustybin on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of saks/rustybin on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing saks/rustybin
[INFO] finished frobbing saks/rustybin
[INFO] frobbed toml for saks/rustybin written to work/ex/beta-1.37-6/sources/1.36.0/gh/saks/rustybin/Cargo.toml
[INFO] started frobbing saks/rustybin
[INFO] finished frobbing saks/rustybin
[INFO] frobbed toml for saks/rustybin written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/saks/rustybin/Cargo.toml
[INFO] crate saks/rustybin already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing saks/rustybin against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/saks/rustybin:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4314ff8b9c4aaf9282bb2942863f37b250044c9c144361bd5d9fb459c56f5e46
[INFO] running `"docker" "start" "-a" "4314ff8b9c4aaf9282bb2942863f37b250044c9c144361bd5d9fb459c56f5e46"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling redis v0.9.0
[INFO] [stderr]    Compiling pear v0.0.19
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling pear_codegen v0.0.19
[INFO] [stderr]    Compiling rocket v0.3.15
[INFO] [stderr]    Compiling rocket_codegen v0.3.15
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling tokio-executor v0.1.3
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr] error: failed to run custom build command for `rocket v0.3.15`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/rocket-1435ff40f8aad318/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: Rocket requires a nightly or dev version of Rust.
[INFO] [stderr] Installed version is: 1.36.0 (2019-07-03). Minimum required: 1.27.0-nightly (2018-04-26).
[INFO] [stderr] See the getting started guide (https://rocket.rs/guide/getting-started/) for more information.
[INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.15/build.rs:38:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x565478529ac3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x5654785256fb - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x565478528956 - std::panicking::default_hook::{{closure}}::he20974adbefcc046
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x5654785286e9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x565478528faf - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x5654784fce53 - std::panicking::begin_panic::hf80dc324b74f7d45
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408
[INFO] [stderr]    6:     0x5654784faeca - build_script_build::main::hf69538bb04e2c586
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.15/build.rs:38
[INFO] [stderr]    7:     0x5654784fd83f - std::rt::lang_start::{{closure}}::hc590e8b489e51cbb
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    8:     0x565478528a02 - std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]    9:     0x56547852eef9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   10:     0x5654785294bc - std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   11:     0x5654784fd818 - std::rt::lang_start::hfa2dda6af1be0381
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x5654784fbd49 - main
[INFO] [stderr]   13:     0x7f8d590772e0 - __libc_start_main
[INFO] [stderr]   14:     0x5654784fa5f9 - _start
[INFO] [stderr]   15:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4314ff8b9c4aaf9282bb2942863f37b250044c9c144361bd5d9fb459c56f5e46"`
[INFO] running `"docker" "rm" "-f" "4314ff8b9c4aaf9282bb2942863f37b250044c9c144361bd5d9fb459c56f5e46"`
[INFO] [stdout] 4314ff8b9c4aaf9282bb2942863f37b250044c9c144361bd5d9fb459c56f5e46