[INFO] fetching crate gog-sync 0.3.4...
[INFO] testing gog-sync-0.3.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate gog-sync 0.3.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gog-sync 0.3.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gog-sync 0.3.4
[INFO] finished tweaking crates.io crate gog-sync 0.3.4
[INFO] tweaked toml for crates.io crate gog-sync 0.3.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded curl v0.4.34
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded libz-sys v1.1.2
[INFO] [stderr]   Downloaded curl-sys v0.4.39+curl-7.74.0
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbeabfda6fa9f667b1fb593d1f8c3178b562be8c11e8efcdd43a96256ed446ec
[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" "dbeabfda6fa9f667b1fb593d1f8c3178b562be8c11e8efcdd43a96256ed446ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbeabfda6fa9f667b1fb593d1f8c3178b562be8c11e8efcdd43a96256ed446ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbeabfda6fa9f667b1fb593d1f8c3178b562be8c11e8efcdd43a96256ed446ec", kill_on_drop: false }`
[INFO] [stdout] dbeabfda6fa9f667b1fb593d1f8c3178b562be8c11e8efcdd43a96256ed446ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a667f97851fbde59a7cf803e3f75af17d73e074591d0e4cb847fb5c6f9bffb8f
[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" "a667f97851fbde59a7cf803e3f75af17d73e074591d0e4cb847fb5c6f9bffb8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling gog-sync v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no variant or associated item named `__Nonexhaustive` found for enum `WriteError` in the current scope
[INFO] [stdout]   --> src/http.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |         WriteError::__Nonexhaustive
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^ variant or associated item not found in `WriteError`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gog-sync`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a667f97851fbde59a7cf803e3f75af17d73e074591d0e4cb847fb5c6f9bffb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a667f97851fbde59a7cf803e3f75af17d73e074591d0e4cb847fb5c6f9bffb8f", kill_on_drop: false }`
[INFO] [stdout] a667f97851fbde59a7cf803e3f75af17d73e074591d0e4cb847fb5c6f9bffb8f