[INFO] updating cached repository https://github.com/richard-reece/md-toc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b12c490f9022be8782ba62ca9936b43fdf9d354
[INFO] checking richard-reece/md-toc against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichard-reece%2Fmd-toc" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richard-reece/md-toc on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/richard-reece/md-toc
[INFO] finished tweaking git repo https://github.com/richard-reece/md-toc
[INFO] tweaked toml for git repo https://github.com/richard-reece/md-toc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/richard-reece/md-toc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "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" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dce931d8dd7b73a8f9dedfd4fb29491b235583f987dfbce20cd56b3df18d3728
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dce931d8dd7b73a8f9dedfd4fb29491b235583f987dfbce20cd56b3df18d3728"`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.50
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.50
[INFO] [stderr]    Compiling pulldown-cmark v0.5.3
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]     Checking serde v1.0.99
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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[E0518]: attribute should be applied to function or closure
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pulldown-cmark-0.5.3/src/parse.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | / bitflags! {
[INFO] [stderr] 127 | |     pub struct Options: u32 {
[INFO] [stderr] 128 | |         const FIRST_PASS = 1 << 0;
[INFO] [stderr] 129 | |         const ENABLE_TABLES = 1 << 1;
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |     }
[INFO] [stderr] 134 | | }
[INFO] [stderr]     | |_^ not a function or closure
[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]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0518`.
[INFO] [stderr] error: could not compile `pulldown-cmark`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dce931d8dd7b73a8f9dedfd4fb29491b235583f987dfbce20cd56b3df18d3728"`
[INFO] running `"docker" "rm" "-f" "dce931d8dd7b73a8f9dedfd4fb29491b235583f987dfbce20cd56b3df18d3728"`
[INFO] [stdout] dce931d8dd7b73a8f9dedfd4fb29491b235583f987dfbce20cd56b3df18d3728