[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 master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 826dca51ccf380a810cb92cd12a777619553c29ff15848c209a17e637736ba8f
[INFO] running `"docker" "start" "-a" "826dca51ccf380a810cb92cd12a777619553c29ff15848c209a17e637736ba8f"`
[INFO] [stderr]     Checking derive_less v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `issue_6`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/issue_6.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `derive_less`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `struct`
[INFO] [stderr]   --> examples/issue_3.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / derive_less! {
[INFO] [stderr] 8  | |     #[derive(Debug)] pub struct ... { pub ... }
[INFO] [stderr] 9  | |
[INFO] [stderr] 10 | |     struct S<T: Trait> {
[INFO] [stderr] 11 | |         f: T,
[INFO] [stderr] 12 | |     }
[INFO] [stderr] 13 | | }
[INFO] [stderr]    | |_^ no rules expected this token in macro call
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[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] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "826dca51ccf380a810cb92cd12a777619553c29ff15848c209a17e637736ba8f"`
[INFO] running `"docker" "rm" "-f" "826dca51ccf380a810cb92cd12a777619553c29ff15848c209a17e637736ba8f"`
[INFO] [stdout] 826dca51ccf380a810cb92cd12a777619553c29ff15848c209a17e637736ba8f