[INFO] crate savannah 0.1.0 is already in cache
[INFO] testing savannah-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate savannah 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate savannah 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate savannah 0.1.0
[INFO] finished tweaking crates.io crate savannah 0.1.0
[INFO] tweaked toml for crates.io crate savannah 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a98c68e128c3a580226fdd097ea20d6a1d715cb1c10930d962a66252d527e22
[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" "7a98c68e128c3a580226fdd097ea20d6a1d715cb1c10930d962a66252d527e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a98c68e128c3a580226fdd097ea20d6a1d715cb1c10930d962a66252d527e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a98c68e128c3a580226fdd097ea20d6a1d715cb1c10930d962a66252d527e22", kill_on_drop: false }`
[INFO] [stdout] 7a98c68e128c3a580226fdd097ea20d6a1d715cb1c10930d962a66252d527e22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f93a22cad789d5adb981406fed81ed09d709f8cd20d9cf9317b334ab588988a
[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" "1f93a22cad789d5adb981406fed81ed09d709f8cd20d9cf9317b334ab588988a", kill_on_drop: false }`
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling savannah v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/version.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | /         {
[INFO] [stdout] 77 | |             #[cfg(target_os = "macos")]
[INFO] [stdout] 78 | |                 {
[INFO] [stdout] 79 | |                     Os::macOS
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |                 }
[INFO] [stdout] 85 | |         },
[INFO] [stdout]    | |_________^ expected enum `version::Os`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `savannah`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1f93a22cad789d5adb981406fed81ed09d709f8cd20d9cf9317b334ab588988a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f93a22cad789d5adb981406fed81ed09d709f8cd20d9cf9317b334ab588988a", kill_on_drop: false }`
[INFO] [stdout] 1f93a22cad789d5adb981406fed81ed09d709f8cd20d9cf9317b334ab588988a