[INFO] crate gluon 0.9.4 is already in cache
[INFO] extracting crate gluon 0.9.4 into work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/gluon/0.9.4
[INFO] extracting crate gluon 0.9.4 into work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/gluon/0.9.4
[INFO] validating manifest of gluon-0.9.4 on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gluon-0.9.4 on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gluon-0.9.4
[INFO] removed 2 missing examples
[INFO] removed 20 missing tests
[INFO] finished frobbing gluon-0.9.4
[INFO] frobbed toml for gluon-0.9.4 written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/gluon/0.9.4/Cargo.toml
[INFO] started frobbing gluon-0.9.4
[INFO] removed 2 missing examples
[INFO] removed 20 missing tests
[INFO] finished frobbing gluon-0.9.4
[INFO] frobbed toml for gluon-0.9.4 written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/gluon/0.9.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gluon-0.9.4 against master#df25d79a33b0c82b716699a75a41bfdc6089850a for pr-59928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-59928/worker-7/master#df25d79a33b0c82b716699a75a41bfdc6089850a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/gluon/0.9.4:/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=forbid" "-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" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 93f5c807a6c1e6da6fd2f83f86d7acc6d0395ca02a3b465fb6c70c7e872f0b17
[INFO] running `"docker" "start" "-a" "93f5c807a6c1e6da6fd2f83f86d7acc6d0395ca02a3b465fb6c70c7e872f0b17"`
[INFO] [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other example targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a example target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/examples/24.rs
[INFO] [stderr] * /opt/crater/workdir/examples/marshalling.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a example target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autoexamples = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/tutorial.rs
[INFO] [stderr] * /opt/crater/workdir/tests/parallel.rs
[INFO] [stderr] * /opt/crater/workdir/tests/array.rs
[INFO] [stderr] * /opt/crater/workdir/tests/error.rs
[INFO] [stderr] * /opt/crater/workdir/tests/main.rs
[INFO] [stderr] * /opt/crater/workdir/tests/skeptic-tests.rs
[INFO] [stderr] * /opt/crater/workdir/tests/safety.rs
[INFO] [stderr] * /opt/crater/workdir/tests/api.rs
[INFO] [stderr] * /opt/crater/workdir/tests/limits.rs
[INFO] [stderr] * /opt/crater/workdir/tests/metadata.rs
[INFO] [stderr] * /opt/crater/workdir/tests/stack_overflow.rs
[INFO] [stderr] * /opt/crater/workdir/tests/vm.rs
[INFO] [stderr] * /opt/crater/workdir/tests/ui.rs
[INFO] [stderr] * /opt/crater/workdir/tests/compiletest.rs
[INFO] [stderr] * /opt/crater/workdir/tests/debug.rs
[INFO] [stderr] * /opt/crater/workdir/tests/row_polymorphism.rs
[INFO] [stderr] * /opt/crater/workdir/tests/io.rs
[INFO] [stderr] * /opt/crater/workdir/tests/de.rs
[INFO] [stderr] * /opt/crater/workdir/tests/serialization.rs
[INFO] [stderr] * /opt/crater/workdir/tests/pattern_match.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling gluon_vm v0.9.4
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]     Checking bincode v1.1.3
[INFO] [stderr]    Compiling codespan v0.1.3
[INFO] [stderr]     Checking tensile v0.4.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking gluon_check v0.9.4
[INFO] [stderr]     Checking gluon_completion v0.9.4
[INFO] [stderr]    Compiling codespan-reporting v0.1.4
[INFO] [stderr]    Compiling gluon_base v0.9.4
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling gluon v0.9.4 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]    --> build.rs:111:29
[INFO] [stderr]     |
[INFO] [stderr] 6   | use std::fs::File;
[INFO] [stderr]     |     ------------- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 111 |     use std::fs::{read_dir, File};
[INFO] [stderr]     |                             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `gluon v0.9.4 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/gluon-1d891400095a7051/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=build.rs
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Test `tutorial` must be declared in Cargo.toml, otherwise it does not run', build.rs:133:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55720cd5d463 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h998473333b6173fd
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55720cd5918b - std::sys_common::backtrace::_print::h7319fdc7898c609c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55720cd5c236 - std::panicking::default_hook::{{closure}}::he0ea18480832534c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55720cd5bfc9 - std::panicking::default_hook::h5860d8261b6f7347
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55720cd5c88f - std::panicking::rust_panic_with_hook::h4edf41dc8786027d
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55720cd5c411 - std::panicking::continue_panic_fmt::hac7094691b749a9f
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55720cd5c35e - std::panicking::begin_panic_fmt::h9e04f69899dd7bae
[INFO] [stderr]                                at src/libstd/panicking.rs:336
[INFO] [stderr]    7:     0x55720cd146a7 - build_script_build::check_test_declarations_in_cargo_file::h4db8d8b590c050e9
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:133
[INFO] [stderr]    8:     0x55720cd159fd - build_script_build::main::h2b85c5e7792c152f
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:211
[INFO] [stderr]    9:     0x55720cd120bf - std::rt::lang_start::{{closure}}::hdff7ead9be121d53
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x55720cd5c2e2 - std::panicking::try::do_call::hc4555bf6034eaeaa
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   11:     0x55720cd5f079 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:87
[INFO] [stderr]   12:     0x55720cd5cd9c - std::rt::lang_start_internal::h4d7765d05754457a
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   13:     0x55720cd12098 - std::rt::lang_start::h038427c9d9f17dcf
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55720cd15a99 - main
[INFO] [stderr]   15:     0x7fac0a6df2e0 - __libc_start_main
[INFO] [stderr]   16:     0x55720cd05ae9 - _start
[INFO] [stderr]   17:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "93f5c807a6c1e6da6fd2f83f86d7acc6d0395ca02a3b465fb6c70c7e872f0b17"`
[INFO] running `"docker" "rm" "-f" "93f5c807a6c1e6da6fd2f83f86d7acc6d0395ca02a3b465fb6c70c7e872f0b17"`
[INFO] [stdout] 93f5c807a6c1e6da6fd2f83f86d7acc6d0395ca02a3b465fb6c70c7e872f0b17