[INFO] fetching crate inert 0.3.0...
[INFO] extracting crate inert 0.3.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/inert/0.3.0
[INFO] extracting crate inert 0.3.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/inert/0.3.0
[INFO] validating manifest of inert-0.3.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of inert-0.3.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing inert-0.3.0
[INFO] removed 1 missing tests
[INFO] finished frobbing inert-0.3.0
[INFO] frobbed toml for inert-0.3.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/inert/0.3.0/Cargo.toml
[INFO] started frobbing inert-0.3.0
[INFO] removed 1 missing tests
[INFO] finished frobbing inert-0.3.0
[INFO] frobbed toml for inert-0.3.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/inert/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inert_derive v0.1.4
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing inert-0.3.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/inert/0.3.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 15f13f3b049f70980e8ed7795938275869de02838ea5ec032cb86a11da7abf90
[INFO] running `"docker" "start" "-a" "15f13f3b049f70980e8ed7795938275869de02838ea5ec032cb86a11da7abf90"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling inert_derive v0.1.4
[INFO] [stderr]    Compiling inert v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `"docker" "inspect" "15f13f3b049f70980e8ed7795938275869de02838ea5ec032cb86a11da7abf90"`
[INFO] running `"docker" "rm" "-f" "15f13f3b049f70980e8ed7795938275869de02838ea5ec032cb86a11da7abf90"`
[INFO] [stdout] 15f13f3b049f70980e8ed7795938275869de02838ea5ec032cb86a11da7abf90
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/inert/0.3.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 732d775228bdc0ba23920a2e604e16e41204a0e13c12b5b26d19651ec9b33f55
[INFO] running `"docker" "start" "-a" "732d775228bdc0ba23920a2e604e16e41204a0e13c12b5b26d19651ec9b33f55"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling inert v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0608]: cannot index into a value of type `&inert::Inert<std::vec::Vec<std::cell::RefCell<Node>>>`
[INFO] [stderr]   --> tests/refcells.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let wrath = &inert.borrow().children()[4];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0608]: cannot index into a value of type `&inert::Inert<std::vec::Vec<std::cell::RefCell<Node>>>`
[INFO] [stderr]   --> tests/refcells.rs:19:31
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let best_language_ever = &inert.borrow().children()[0].borrow().children()[0];
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0608`.
[INFO] [stderr] error: Could not compile `inert`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "732d775228bdc0ba23920a2e604e16e41204a0e13c12b5b26d19651ec9b33f55"`
[INFO] running `"docker" "rm" "-f" "732d775228bdc0ba23920a2e604e16e41204a0e13c12b5b26d19651ec9b33f55"`
[INFO] [stdout] 732d775228bdc0ba23920a2e604e16e41204a0e13c12b5b26d19651ec9b33f55