[INFO] updating cached repository https://github.com/cave-dev/dummy-backend-api
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 7026d1b425a79cb0eec12e4c2e7a2448cc1b6480
[INFO] testing cave-dev/dummy-backend-api against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcave-dev%2Fdummy-backend-api" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cave-dev/dummy-backend-api on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cave-dev/dummy-backend-api
[INFO] finished tweaking git repo https://github.com/cave-dev/dummy-backend-api
[INFO] tweaked toml for git repo https://github.com/cave-dev/dummy-backend-api written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/cave-dev/dummy-backend-api already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a3ac14b0834f6d03504120c6f5a032fb19e00db592aa646686ca1a93cf143fe7
[INFO] running `"docker" "start" "-a" "a3ac14b0834f6d03504120c6f5a032fb19e00db592aa646686ca1a93cf143fe7"`
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling pear v0.0.20
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling ordermap v0.2.13
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling pear_codegen v0.0.20
[INFO] [stderr]    Compiling rocket v0.3.17
[INFO] [stderr]    Compiling rocket_codegen v0.3.17
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr] error: failed to run custom build command for `rocket_codegen v0.3.17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket_codegen-54e7ab7c5243fdde/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: 1.39.0-beta.2 (2019-09-27). Minimum required: 1.30.0-nightly (2018-08-23).
[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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.3.17/build.rs:38:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56414a92fe94 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56414a92fe94 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56414a92fe94 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x56414a92fe94 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b7ac01d5feaf9b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x56414a94de0c - core::fmt::write::h7fd0d904495c035f
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x56414a92d6e7 - std::io::Write::write_fmt::h663e4bf63637c947
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x56414a932215 - std::sys_common::backtrace::_print::h4c743f7c274a5a74
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x56414a932215 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56414a932215 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x56414a931f06 - std::panicking::default_hook::hd8ec13ee1bc2a65a
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x56414a932865 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x56414a9066af - std::panicking::begin_panic::h5f834181f46bb6dc
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:407
[INFO] [stderr]   12:     0x56414a904519 - build_script_build::main::hab7ccee63d6850b0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.3.17/build.rs:38
[INFO] [stderr]   13:     0x56414a905bf0 - std::rt::lang_start::{{closure}}::he4a7ea48a44f3f24
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x56414a9322e3 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x56414a9322e3 - std::panicking::try::do_call::hd308ec0604b9bc21
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   16:     0x56414a93857a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x56414a932d5d - std::panicking::try::hafc45125a5bd2b22
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   18:     0x56414a932d5d - std::panic::catch_unwind::h8494678ec44c4b51
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x56414a932d5d - std::rt::lang_start_internal::h7404667a595739f8
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x56414a905bc9 - std::rt::lang_start::h27485c53dd564a4e
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x56414a9052ca - main
[INFO] [stderr]   22:     0x7f97047bdb97 - __libc_start_main
[INFO] [stderr]   23:     0x56414a903c1a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `rocket v0.3.17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-eacb4635bab5431f/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: 1.39.0-beta.2 (2019-09-27). 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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.17/build.rs:38:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55adcd9b2ea4 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55adcd9b2ea4 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55adcd9b2ea4 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x55adcd9b2ea4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b7ac01d5feaf9b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x55adcd9d0e1c - core::fmt::write::h7fd0d904495c035f
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55adcd9b06f7 - std::io::Write::write_fmt::h663e4bf63637c947
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55adcd9b5225 - std::sys_common::backtrace::_print::h4c743f7c274a5a74
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x55adcd9b5225 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55adcd9b5225 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x55adcd9b4f16 - std::panicking::default_hook::hd8ec13ee1bc2a65a
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55adcd9b5875 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55adcd9896bf - std::panicking::begin_panic::h00b5842cbb0dc03e
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:407
[INFO] [stderr]   12:     0x55adcd9874f6 - build_script_build::main::hc0c9831d6c00a6f2
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.17/build.rs:38
[INFO] [stderr]   13:     0x55adcd988c00 - std::rt::lang_start::{{closure}}::h4b978a0a0e805268
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55adcd9b52f3 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55adcd9b52f3 - std::panicking::try::do_call::hd308ec0604b9bc21
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   16:     0x55adcd9bb58a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x55adcd9b5d6d - std::panicking::try::hafc45125a5bd2b22
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   18:     0x55adcd9b5d6d - std::panic::catch_unwind::h8494678ec44c4b51
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x55adcd9b5d6d - std::rt::lang_start_internal::h7404667a595739f8
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55adcd988bd9 - std::rt::lang_start::hc997f094eae39ee9
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55adcd9882da - main
[INFO] [stderr]   22:     0x7ffb1ce4eb97 - __libc_start_main
[INFO] [stderr]   23:     0x55adcd986c1a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a3ac14b0834f6d03504120c6f5a032fb19e00db592aa646686ca1a93cf143fe7"`
[INFO] running `"docker" "rm" "-f" "a3ac14b0834f6d03504120c6f5a032fb19e00db592aa646686ca1a93cf143fe7"`
[INFO] [stdout] a3ac14b0834f6d03504120c6f5a032fb19e00db592aa646686ca1a93cf143fe7