[INFO] fetching crate tts_winrt_bindings 0.2.0...
[INFO] testing tts_winrt_bindings-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tts_winrt_bindings 0.2.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate tts_winrt_bindings 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winrt_gen_macros v0.7.2
[INFO] [stderr]   Downloaded winrt_macros v0.7.2
[INFO] [stderr]   Downloaded winrt_gen v0.7.2
[INFO] [stderr]   Downloaded winrt v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d29bb8fbbc3884308c42467a726a5d5279f5c26f65af1316b2a6c39e4a9a7187
[INFO] running `Command { std: "docker" "start" "-a" "d29bb8fbbc3884308c42467a726a5d5279f5c26f65af1316b2a6c39e4a9a7187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d29bb8fbbc3884308c42467a726a5d5279f5c26f65af1316b2a6c39e4a9a7187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29bb8fbbc3884308c42467a726a5d5279f5c26f65af1316b2a6c39e4a9a7187", kill_on_drop: false }`
[INFO] [stdout] d29bb8fbbc3884308c42467a726a5d5279f5c26f65af1316b2a6c39e4a9a7187
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e60626dfa4a92dff798dd41a757b4992c070885c864360a28478231e8cb433d
[INFO] running `Command { std: "docker" "start" "-a" "8e60626dfa4a92dff798dd41a757b4992c070885c864360a28478231e8cb433d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling sha1 v0.6.0
[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` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8e60626dfa4a92dff798dd41a757b4992c070885c864360a28478231e8cb433d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e60626dfa4a92dff798dd41a757b4992c070885c864360a28478231e8cb433d", kill_on_drop: false }`
[INFO] [stdout] 8e60626dfa4a92dff798dd41a757b4992c070885c864360a28478231e8cb433d