[INFO] crate proc-macro-error 1.0.2 is already in cache
[INFO] testing proc-macro-error-1.0.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate proc-macro-error 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate proc-macro-error 1.0.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proc-macro-error 1.0.2
[INFO] finished tweaking crates.io crate proc-macro-error 1.0.2
[INFO] tweaked toml for crates.io crate proc-macro-error 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41151a86139d917198d23e923b69ae80565bca75ba6347154067dc775fb2ed04
[INFO] running `"docker" "start" "-a" "41151a86139d917198d23e923b69ae80565bca75ba6347154067dc775fb2ed04"`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `"docker" "inspect" "41151a86139d917198d23e923b69ae80565bca75ba6347154067dc775fb2ed04"`
[INFO] running `"docker" "rm" "-f" "41151a86139d917198d23e923b69ae80565bca75ba6347154067dc775fb2ed04"`
[INFO] [stdout] 41151a86139d917198d23e923b69ae80565bca75ba6347154067dc775fb2ed04
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1c7546376336b1002ec1f120daa535f1347305c8d080ed8ade297769e9b9be9
[INFO] running `"docker" "start" "-a" "f1c7546376336b1002ec1f120daa535f1347305c8d080ed8ade297769e9b9be9"`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling dissimilar v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling toml v0.5.2
[INFO] [stderr]    Compiling trybuild v1.0.25
[INFO] [stderr]    Compiling proc-macro-error v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `test_crate`
[INFO] [stderr]  --> tests/ok.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate test_crate;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `proc-macro-error`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f1c7546376336b1002ec1f120daa535f1347305c8d080ed8ade297769e9b9be9"`
[INFO] running `"docker" "rm" "-f" "f1c7546376336b1002ec1f120daa535f1347305c8d080ed8ade297769e9b9be9"`
[INFO] [stdout] f1c7546376336b1002ec1f120daa535f1347305c8d080ed8ade297769e9b9be9