[INFO] updating cached repository moesoha/url-shortener
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/moesoha/url-shortener
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/moesoha/url-shortener" "work/ex/beta-1.37-6/sources/1.36.0/gh/moesoha/url-shortener"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/moesoha/url-shortener'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/moesoha/url-shortener" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/moesoha/url-shortener"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/moesoha/url-shortener'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4bbf0196821133787387d7c85cb03feca27cd737
[INFO] sha for GitHub repo moesoha/url-shortener: 4bbf0196821133787387d7c85cb03feca27cd737
[INFO] validating manifest of moesoha/url-shortener 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 moesoha/url-shortener 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 moesoha/url-shortener
[INFO] finished frobbing moesoha/url-shortener
[INFO] frobbed toml for moesoha/url-shortener written to work/ex/beta-1.37-6/sources/1.36.0/gh/moesoha/url-shortener/Cargo.toml
[INFO] started frobbing moesoha/url-shortener
[INFO] finished frobbing moesoha/url-shortener
[INFO] frobbed toml for moesoha/url-shortener written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/moesoha/url-shortener/Cargo.toml
[INFO] crate moesoha/url-shortener 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing moesoha/url-shortener 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/moesoha/url-shortener:/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] 612c56aba4623d210742fb0f3a9df45336f0755cf0b4bcd7b1709ac23b9c712e
[INFO] running `"docker" "start" "-a" "612c56aba4623d210742fb0f3a9df45336f0755cf0b4bcd7b1709ac23b9c712e"`
[INFO] [stderr]    Compiling serde v1.0.63
[INFO] [stderr]    Compiling pear v0.0.17
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling pear_codegen v0.0.17
[INFO] [stderr]    Compiling rocket v0.3.11
[INFO] [stderr]    Compiling rocket_codegen v0.3.11
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling atoi v0.2.3
[INFO] [stderr]    Compiling twox-hash v1.1.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling syn v0.14.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr] error: failed to run custom build command for `rocket_codegen v0.3.11`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/rocket_codegen-a8ff651dec2a72bb/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 (2018-05-04).
[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_codegen-0.3.11/build.rs:38:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b1192c3aa3 - 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:     0x55b1192bf6db - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55b1192c2936 - 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:     0x55b1192c26c9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55b1192c2f8f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55b119296e33 - std::panicking::begin_panic::hf9fb4ec6562edc43
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408
[INFO] [stderr]    6:     0x55b119294ec7 - build_script_build::main::h9986471f697eae15
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.3.11/build.rs:38
[INFO] [stderr]    7:     0x55b11929781f - std::rt::lang_start::{{closure}}::hb9a736d822e584fc
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    8:     0x55b1192c29e2 - 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:     0x55b1192c8ed9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   10:     0x55b1192c349c - 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:     0x55b1192977f8 - std::rt::lang_start::hf2f3a0401732a1ad
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55b119295d29 - main
[INFO] [stderr]   13:     0x7f03042f82e0 - __libc_start_main
[INFO] [stderr]   14:     0x55b1192945f9 - _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" "612c56aba4623d210742fb0f3a9df45336f0755cf0b4bcd7b1709ac23b9c712e"`
[INFO] running `"docker" "rm" "-f" "612c56aba4623d210742fb0f3a9df45336f0755cf0b4bcd7b1709ac23b9c712e"`
[INFO] [stdout] 612c56aba4623d210742fb0f3a9df45336f0755cf0b4bcd7b1709ac23b9c712e