[INFO] crate gluon 0.11.2 is already in cache
[INFO] extracting crate gluon 0.11.2 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/gluon/0.11.2
[INFO] extracting crate gluon 0.11.2 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/gluon/0.11.2
[INFO] validating manifest of gluon-0.11.2 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gluon-0.11.2 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gluon-0.11.2
[INFO] removed 2 missing examples
[INFO] removed 20 missing tests
[INFO] finished frobbing gluon-0.11.2
[INFO] frobbed toml for gluon-0.11.2 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/gluon/0.11.2/Cargo.toml
[INFO] started frobbing gluon-0.11.2
[INFO] removed 2 missing examples
[INFO] removed 20 missing tests
[INFO] finished frobbing gluon-0.11.2
[INFO] frobbed toml for gluon-0.11.2 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/gluon/0.11.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gluon-0.11.2 against master#1891bfa80364eead426517c68de6947b7692e2de for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-4/master#1891bfa80364eead426517c68de6947b7692e2de:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/gluon/0.11.2:/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" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f76ed83616b7bd07588c8a59b97b05bc5eaf26453034f1c17a8477ad06592edb
[INFO] running `"docker" "start" "-a" "f76ed83616b7bd07588c8a59b97b05bc5eaf26453034f1c17a8477ad06592edb"`
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]     Checking union-find v0.3.2
[INFO] [stderr]    Compiling gluon_vm v0.11.2
[INFO] [stderr]     Checking rpds v0.5.0
[INFO] [stderr]     Checking frunk_core v0.2.4
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]    Compiling gluon_codegen v0.11.2
[INFO] [stderr]     Checking codespan v0.2.1
[INFO] [stderr]     Checking tensile v0.4.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking codespan-reporting v0.2.1
[INFO] [stderr]     Checking gluon_base v0.11.2
[INFO] [stderr]    Compiling serde_derive_state v0.4.4
[INFO] [stderr]     Checking gluon_check v0.11.2
[INFO] [stderr]     Checking gluon_format v0.11.2
[INFO] [stderr]     Checking gluon_completion v0.11.2
[INFO] [stderr]    Compiling strsim v0.9.1
[INFO] [stderr]    Compiling gluon v0.11.2 (/opt/crater/workdir)
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]    --> build.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 6   | use std::fs::File;
[INFO] [stderr]     |     ------------- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 112 |     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 v0.11.2 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/gluon-4e743851e6c24060/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:134:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55743ba37fe3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hf442c630213d5c0e
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55743ba33d0b - std::sys_common::backtrace::_print::h1f9138ed6351d2a8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55743ba36db6 - std::panicking::default_hook::{{closure}}::he2d7aa18e306aa14
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55743ba36b49 - std::panicking::default_hook::he86a971ed90f2b8f
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55743ba3740f - std::panicking::rust_panic_with_hook::h8e0ec1fb63564a4a
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55743ba36f91 - std::panicking::continue_panic_fmt::h5758ee73634469f4
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55743ba36ede - std::panicking::begin_panic_fmt::h28f0f600a9e23221
[INFO] [stderr]                                at src/libstd/panicking.rs:336
[INFO] [stderr]    7:     0x55743b9edc4d - build_script_build::check_test_declarations_in_cargo_file::h89fcce2b513ed1cc
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:134
[INFO] [stderr]    8:     0x55743b9eefc1 - build_script_build::main::hff56f984cacddbb5
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:216
[INFO] [stderr]    9:     0x55743b9ec54f - std::rt::lang_start::{{closure}}::h5dbc47e3f1c2c083
[INFO] [stderr]                                at /rustc/1891bfa80364eead426517c68de6947b7692e2de/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x55743ba36e62 - std::panicking::try::do_call::h7aa8c4760020085d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   11:     0x55743ba39c49 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   12:     0x55743ba3791c - std::rt::lang_start_internal::hecae08ecaa28013a
[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:     0x55743b9ec528 - std::rt::lang_start::h5a909fece246c848
[INFO] [stderr]                                at /rustc/1891bfa80364eead426517c68de6947b7692e2de/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55743b9ef0d9 - main
[INFO] [stderr]   15:     0x7f4e048f42e0 - __libc_start_main
[INFO] [stderr]   16:     0x55743b9e0909 - _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" "f76ed83616b7bd07588c8a59b97b05bc5eaf26453034f1c17a8477ad06592edb"`
[INFO] running `"docker" "rm" "-f" "f76ed83616b7bd07588c8a59b97b05bc5eaf26453034f1c17a8477ad06592edb"`
[INFO] [stdout] f76ed83616b7bd07588c8a59b97b05bc5eaf26453034f1c17a8477ad06592edb