[INFO] crate rocket-mongo-file-center-download-response 0.5.0 is already in cache
[INFO] testing rocket-mongo-file-center-download-response-0.5.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate rocket-mongo-file-center-download-response 0.5.0 into work/builds/worker-10/source
[INFO] validating manifest of crates.io crate rocket-mongo-file-center-download-response 0.5.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rocket-mongo-file-center-download-response 0.5.0
[INFO] finished tweaking crates.io crate rocket-mongo-file-center-download-response 0.5.0
[INFO] tweaked toml for crates.io crate rocket-mongo-file-center-download-response 0.5.0 written to work/builds/worker-10/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 6850f900e23d87d0b8a6b1212a1fa8c87aab2a30585f1a22dc0b75d04416bf00
[INFO] running `"docker" "start" "-a" "6850f900e23d87d0b8a6b1212a1fa8c87aab2a30585f1a22dc0b75d04416bf00"`
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling debug-helper v0.3.8
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling base32 v0.4.0
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-2ca73105dfbc6824/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: Pear requires a nightly or dev version of Rust.
[INFO] [stderr] Installed version is: 1.38.0 (2019-09-23). Minimum required: 1.31.0-nightly (2018-10-05).
[INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561d8627424b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561d8627424b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561d8627424b - std::sys_common::backtrace::_print::hd3382a1f33c473da
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561d8627424b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561d8627424b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561d86273f26 - std::panicking::default_hook::h95a8f00337383d83
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561d8627490d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561d862483d1 - std::panicking::begin_panic::h34c2491804283f86
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x561d8624620a - build_script_build::main::hadcea22533649790
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31
[INFO] [stderr]    9:     0x561d86247910 - std::rt::lang_start::{{closure}}::h7e59482fc1d8b9f1
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x561d86274363 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   11:     0x561d86274363 - std::panicking::try::do_call::h9440ccd4dc467eaa
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   12:     0x561d8627a69a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   13:     0x561d86274e1d - std::panicking::try::hc046e7ee42ee744f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   14:     0x561d86274e1d - std::panic::catch_unwind::h27dfc457c200aee0
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   15:     0x561d86274e1d - std::rt::lang_start_internal::hea1b49a567afe309
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x561d862478e9 - std::rt::lang_start::h5b2149d4761914ac
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x561d86246fea - main
[INFO] [stderr]   18:     0x7f9e1a658b97 - __libc_start_main
[INFO] [stderr]   19:     0x561d86245b5a - _start
[INFO] [stderr]   20:                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_codegen v0.4.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket_codegen-9f6554b5ab31b991/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: Rocket (codegen) requires a 'dev' or 'nightly' version of rustc.
[INFO] [stderr] Installed version: 1.38.0 (2019-09-23)
[INFO] [stderr] Minimum required:  1.33.0-nightly (2019-01-13)
[INFO] [stderr] See the getting started guide (https://rocket.rs/v0.5/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-0.4.2/build.rs:29:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55de27ce64db - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55de27ce64db - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55de27ce64db - std::sys_common::backtrace::_print::hd3382a1f33c473da
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55de27ce64db - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55de27ce64db - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55de27ce61b6 - std::panicking::default_hook::h95a8f00337383d83
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55de27ce6b9d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55de27cba371 - std::panicking::begin_panic::he68b53a4833ed397
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x55de27cb58fa - build_script_build::main::he90e24af896669fc
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.4.2/build.rs:29
[INFO] [stderr]    9:     0x55de27cb7030 - std::rt::lang_start::{{closure}}::h7cb74a565b51ae0a
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x55de27ce65f3 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   11:     0x55de27ce65f3 - std::panicking::try::do_call::h9440ccd4dc467eaa
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   12:     0x55de27cec92a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   13:     0x55de27ce70ad - std::panicking::try::hc046e7ee42ee744f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   14:     0x55de27ce70ad - std::panic::catch_unwind::h27dfc457c200aee0
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   15:     0x55de27ce70ad - std::rt::lang_start_internal::hea1b49a567afe309
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x55de27cb7009 - std::rt::lang_start::h26f31e977efb23ed
[INFO] [stderr]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x55de27cb601a - main
[INFO] [stderr]   18:     0x7f19eb3e7b97 - __libc_start_main
[INFO] [stderr]   19:     0x55de27cb4fba - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6850f900e23d87d0b8a6b1212a1fa8c87aab2a30585f1a22dc0b75d04416bf00"`
[INFO] running `"docker" "rm" "-f" "6850f900e23d87d0b8a6b1212a1fa8c87aab2a30585f1a22dc0b75d04416bf00"`
[INFO] [stdout] 6850f900e23d87d0b8a6b1212a1fa8c87aab2a30585f1a22dc0b75d04416bf00