[INFO] crate text-transliterate 2.0.0 is already in cache
[INFO] testing text-transliterate-2.0.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate text-transliterate 2.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate text-transliterate 2.0.0 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 text-transliterate 2.0.0
[INFO] finished tweaking crates.io crate text-transliterate 2.0.0
[INFO] tweaked toml for crates.io crate text-transliterate 2.0.0 written to /workspace/builds/worker-13/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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 92b6053b0dbfba77f16110c7fab5e0fada381164e1686feb58e3fb57d85e14eb
[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" "92b6053b0dbfba77f16110c7fab5e0fada381164e1686feb58e3fb57d85e14eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92b6053b0dbfba77f16110c7fab5e0fada381164e1686feb58e3fb57d85e14eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b6053b0dbfba77f16110c7fab5e0fada381164e1686feb58e3fb57d85e14eb", kill_on_drop: false }`
[INFO] [stdout] 92b6053b0dbfba77f16110c7fab5e0fada381164e1686feb58e3fb57d85e14eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9999201caf1022cb138ab977cd9e3eaa12fc86fb3f2b740b191a8627d4a43bb9
[INFO] running `Command { std: "docker" "start" "-a" "9999201caf1022cb138ab977cd9e3eaa12fc86fb3f2b740b191a8627d4a43bb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling gloo-timers v0.2.1
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling async-std v1.6.2
[INFO] [stderr]    Compiling text-transliterate v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/transliterate_off_thread.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout] 169 |         if let Some(result) = receiver.recv().await {
[INFO] [stdout]     |                ^^^^^^^^^^^^   --------------------- this expression has type `std::result::Result<std::result::Result<std::string::String, transliterate::TransliterationError>, async_std::sync::RecvError>`
[INFO] [stdout]     |                |
[INFO] [stdout]     |                expected enum `std::result::Result`, found enum `std::option::Option`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `std::result::Result<std::result::Result<std::string::String, transliterate::TransliterationError>, async_std::sync::RecvError>`
[INFO] [stdout]                found enum `std::option::Option<_>`
[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 `text-transliterate`.
[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" "9999201caf1022cb138ab977cd9e3eaa12fc86fb3f2b740b191a8627d4a43bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9999201caf1022cb138ab977cd9e3eaa12fc86fb3f2b740b191a8627d4a43bb9", kill_on_drop: false }`
[INFO] [stdout] 9999201caf1022cb138ab977cd9e3eaa12fc86fb3f2b740b191a8627d4a43bb9