[INFO] fetching crate tts_winrt_bindings 0.2.0...
[INFO] checking tts_winrt_bindings-0.2.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate tts_winrt_bindings 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tts_winrt_bindings 0.2.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tts_winrt_bindings 0.2.0
[INFO] finished tweaking crates.io crate tts_winrt_bindings 0.2.0
[INFO] tweaked toml for crates.io crate tts_winrt_bindings 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] bc64f76f3dcf984e5ce5da211b6cab608f6e42c3fc97ffb2b17bd9696657e3a6
[INFO] running `Command { std: "docker" "start" "-a" "bc64f76f3dcf984e5ce5da211b6cab608f6e42c3fc97ffb2b17bd9696657e3a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc64f76f3dcf984e5ce5da211b6cab608f6e42c3fc97ffb2b17bd9696657e3a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc64f76f3dcf984e5ce5da211b6cab608f6e42c3fc97ffb2b17bd9696657e3a6", kill_on_drop: false }`
[INFO] [stdout] bc64f76f3dcf984e5ce5da211b6cab608f6e42c3fc97ffb2b17bd9696657e3a6
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 771935d112a5346efea8cc6c54debf1083619e583163de5d0e5d051349eecca7
[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" "771935d112a5346efea8cc6c54debf1083619e583163de5d0e5d051349eecca7", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling winrt_gen_macros v0.7.2
[INFO] [stderr]    Compiling winrt_gen v0.7.2
[INFO] [stderr]    Compiling winrt_macros v0.7.2
[INFO] [stderr]    Compiling winrt v0.7.2
[INFO] [stderr]    Compiling tts_winrt_bindings v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: 'windir' environment variable is not set. Perhaps you're trying to use operating system dependencies on a non-Windows OS?
[INFO] [stdout]  --> build.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |         os
[INFO] [stdout]   |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `build` in this scope
[INFO] [stdout]   --> build.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     build();
[INFO] [stdout]    |     ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tts_winrt_bindings`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "771935d112a5346efea8cc6c54debf1083619e583163de5d0e5d051349eecca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "771935d112a5346efea8cc6c54debf1083619e583163de5d0e5d051349eecca7", kill_on_drop: false }`
[INFO] [stdout] 771935d112a5346efea8cc6c54debf1083619e583163de5d0e5d051349eecca7