[INFO] crate github-api 0.4.3 is already in cache
[INFO] testing github-api-0.4.3 against 1.44.0 for beta-1.45-1
[INFO] extracting crate github-api 0.4.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate github-api 0.4.3 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate github-api 0.4.3
[INFO] finished tweaking crates.io crate github-api 0.4.3
[INFO] tweaked toml for crates.io crate github-api 0.4.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+1.44.0" "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] c2f651afbd2ff4540261fbf61e97b64c957b66b7ca4fe3165bd346625ff011c1
[INFO] running `"docker" "start" "-a" "c2f651afbd2ff4540261fbf61e97b64c957b66b7ca4fe3165bd346625ff011c1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling burgundy v0.3.3
[INFO] [stderr]    Compiling github-api v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use extern::burgundy;
[INFO] [stderr]    |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]    |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]    |
[INFO] [stderr] 10 | use r#extern::burgundy;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use extern::burgundy::Error;
[INFO] [stderr]    |         ^^^^^^ expected identifier, found keyword
[INFO] [stderr]    |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use r#extern::burgundy::Error;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]   --> src/lib.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub use extern::burgundy::Result;
[INFO] [stderr]    |         ^^^^^^ expected identifier, found keyword
[INFO] [stderr]    |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub use r#extern::burgundy::Result;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(extern_in_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `::foo::bar` paths
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/orgs.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/orgs/owner.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/orgs/owner/repos.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/compare.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/compare/revision.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents/path.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::base64;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::base64;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents/path.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 2 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits/path.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: expected identifier, found keyword `extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits/sha.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 1 | use r#extern::burgundy;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `r#extern`?
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use extern::burgundy::Error;
[INFO] [stderr]    |         ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `r#extern`?
[INFO] [stderr]   --> src/lib.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub use extern::burgundy::Result;
[INFO] [stderr]    |         ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use extern::burgundy;
[INFO] [stderr]    |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/orgs.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/orgs/owner.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/orgs/owner/repos.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/compare.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/compare/revision.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents/path.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::base64;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/contents/path.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits/path.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `r#extern`
[INFO] [stderr]  --> src/get/repos/owner/repo/commits/sha.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use extern::burgundy;
[INFO] [stderr]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(crate_visibility_modifier)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(extern_in_paths)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 39 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433, E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `github-api`.
[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" "c2f651afbd2ff4540261fbf61e97b64c957b66b7ca4fe3165bd346625ff011c1"`
[INFO] running `"docker" "rm" "-f" "c2f651afbd2ff4540261fbf61e97b64c957b66b7ca4fe3165bd346625ff011c1"`
[INFO] [stdout] c2f651afbd2ff4540261fbf61e97b64c957b66b7ca4fe3165bd346625ff011c1