[INFO] crate github-api 0.4.3 is already in cache
[INFO] testing github-api-0.4.3 against 1.45.2 for beta-1.46-1
[INFO] extracting crate github-api 0.4.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate github-api 0.4.3 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6d3518e18c2888f3cdd62ea8c444cc24bd9b25111a2195b4e0a2c53dc2cdf9cd
[INFO] running `Command { std: "docker" "start" "-a" "6d3518e18c2888f3cdd62ea8c444cc24bd9b25111a2195b4e0a2c53dc2cdf9cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3518e18c2888f3cdd62ea8c444cc24bd9b25111a2195b4e0a2c53dc2cdf9cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3518e18c2888f3cdd62ea8c444cc24bd9b25111a2195b4e0a2c53dc2cdf9cd", kill_on_drop: false }`
[INFO] [stdout] 6d3518e18c2888f3cdd62ea8c444cc24bd9b25111a2195b4e0a2c53dc2cdf9cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 944706b06fdc275483eaee6fd442f4a4082adb1c4c9929467e79e058a58f787d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "944706b06fdc275483eaee6fd442f4a4082adb1c4c9929467e79e058a58f787d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
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[INFO] [stderr]    Compiling burgundy v0.3.3
[INFO] [stderr]    Compiling github-api v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use extern::burgundy;
[INFO] [stdout]    |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]    |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]    |
[INFO] [stdout] 10 | use r#extern::burgundy;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use extern::burgundy::Error;
[INFO] [stdout]    |         ^^^^^^ expected identifier, found keyword
[INFO] [stdout]    |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use r#extern::burgundy::Error;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]   --> src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use extern::burgundy::Result;
[INFO] [stdout]    |         ^^^^^^ expected identifier, found keyword
[INFO] [stdout]    |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use r#extern::burgundy::Result;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(extern_in_paths)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `::foo::bar` paths
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/orgs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/orgs/owner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/orgs/owner/repos.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/compare.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/compare/revision.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents/path.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::base64;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::base64;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents/path.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 2 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits/path.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits/sha.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use r#extern::burgundy;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `r#extern`?
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use extern::burgundy::Error;
[INFO] [stdout]    |         ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `r#extern`?
[INFO] [stdout]   --> src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use extern::burgundy::Result;
[INFO] [stdout]    |         ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use extern::burgundy;
[INFO] [stdout]    |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/orgs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/orgs/owner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/orgs/owner/repos.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/compare.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/compare/revision.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents/path.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::base64;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/contents/path.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits/path.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `r#extern`
[INFO] [stdout]  --> src/get/repos/owner/repo/commits/sha.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use extern::burgundy;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `r#extern`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(extern_in_paths)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 39 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "944706b06fdc275483eaee6fd442f4a4082adb1c4c9929467e79e058a58f787d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944706b06fdc275483eaee6fd442f4a4082adb1c4c9929467e79e058a58f787d", kill_on_drop: false }`
[INFO] [stdout] 944706b06fdc275483eaee6fd442f4a4082adb1c4c9929467e79e058a58f787d