[INFO] cloning repository https://github.com/subnomo/MCC-Trainer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/subnomo/MCC-Trainer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubnomo%2FMCC-Trainer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubnomo%2FMCC-Trainer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d957e9855d2ebf57f6a6c518b663729ddc609a37
[INFO] testing subnomo/MCC-Trainer against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubnomo%2FMCC-Trainer" "/workspace/builds/worker-108/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-108/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/subnomo/MCC-Trainer 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 git repo https://github.com/subnomo/MCC-Trainer
[INFO] finished tweaking git repo https://github.com/subnomo/MCC-Trainer
[INFO] tweaked toml for git repo https://github.com/subnomo/MCC-Trainer written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate git repo https://github.com/subnomo/MCC-Trainer already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 758c28ec508bfce190e0b9d6d09b39b7feaabb4559260b6d9ca8f2ede3590fe9
[INFO] running `Command { std: "docker" "start" "-a" "758c28ec508bfce190e0b9d6d09b39b7feaabb4559260b6d9ca8f2ede3590fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "758c28ec508bfce190e0b9d6d09b39b7feaabb4559260b6d9ca8f2ede3590fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758c28ec508bfce190e0b9d6d09b39b7feaabb4559260b6d9ca8f2ede3590fe9", kill_on_drop: false }`
[INFO] [stdout] 758c28ec508bfce190e0b9d6d09b39b7feaabb4559260b6d9ca8f2ede3590fe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 6a179e21993e47a29c90f55865f06829637744147503fdef823c0dfdea4a97f0
[INFO] running `Command { std: "docker" "start" "-a" "6a179e21993e47a29c90f55865f06829637744147503fdef823c0dfdea4a97f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling mcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stdout]  --> src/ke_interface.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::windows::ffi::OsStrExt;
[INFO] [stdout]   |              ^^^^^^^ could not find `windows` in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode_wide` found for reference `&OsStr` in the current scope
[INFO] [stdout]   --> src/ke_interface.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |             .encode_wide()
[INFO] [stdout]    |              ^^^^^^^^^^^ method not found in `&OsStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode_wide` found for reference `&OsStr` in the current scope
[INFO] [stdout]   --> src/ke_interface.rs:95:14
[INFO] [stdout]    |
[INFO] [stdout] 95 |             .encode_wide()
[INFO] [stdout]    |              ^^^^^^^^^^^ method not found in `&OsStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcc` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "6a179e21993e47a29c90f55865f06829637744147503fdef823c0dfdea4a97f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a179e21993e47a29c90f55865f06829637744147503fdef823c0dfdea4a97f0", kill_on_drop: false }`
[INFO] [stdout] 6a179e21993e47a29c90f55865f06829637744147503fdef823c0dfdea4a97f0