[INFO] crate derive_less 0.1.7 is already in cache
[INFO] extracting crate derive_less 0.1.7 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/derive_less/0.1.7
[INFO] extracting crate derive_less 0.1.7 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/derive_less/0.1.7
[INFO] validating manifest of derive_less-0.1.7 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of derive_less-0.1.7 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing derive_less-0.1.7
[INFO] finished frobbing derive_less-0.1.7
[INFO] frobbed toml for derive_less-0.1.7 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/derive_less/0.1.7/Cargo.toml
[INFO] started frobbing derive_less-0.1.7
[INFO] finished frobbing derive_less-0.1.7
[INFO] frobbed toml for derive_less-0.1.7 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/derive_less/0.1.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking derive_less-0.1.7 against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/derive_less/0.1.7:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a830b6bc97da9bf04c1e8d20880ce9aa8409ed22498024ac90b72f0088277984
[INFO] running `"docker" "start" "-a" "a830b6bc97da9bf04c1e8d20880ce9aa8409ed22498024ac90b72f0088277984"`
[INFO] [stderr]     Checking derive_less v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] error: local ambiguity: multiple parsing options: built-in NTs ident ('svis') or 1 other option.
[INFO] [stderr]  --> examples/issue_2.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 |     #[derive(Debug)] struct ... { pub ... }
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `derive_less`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: no rules expected the token `(`
[INFO] [stderr]  --> examples/issue_4.rs:6:42
[INFO] [stderr]   |
[INFO] [stderr] 6 |     #[derive(Debug)] pub struct ... { pub(crate) ... }
[INFO] [stderr]   |                                          ^ no rules expected this token in macro call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `derive_less`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a830b6bc97da9bf04c1e8d20880ce9aa8409ed22498024ac90b72f0088277984"`
[INFO] running `"docker" "rm" "-f" "a830b6bc97da9bf04c1e8d20880ce9aa8409ed22498024ac90b72f0088277984"`
[INFO] [stdout] a830b6bc97da9bf04c1e8d20880ce9aa8409ed22498024ac90b72f0088277984