[INFO] updating cached repository https://github.com/cecton/serde-gettext
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5601e5478cd84c22903f405747c127def049e58d
[INFO] checking cecton/serde-gettext against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcecton%2Fserde-gettext" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cecton/serde-gettext on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cecton/serde-gettext
[INFO] finished tweaking git repo https://github.com/cecton/serde-gettext
[INFO] tweaked toml for git repo https://github.com/cecton/serde-gettext written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0626dd59ae33c9d38a95b6844948d7d265fa59ea25899c64fb5385acbdff3c7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "0626dd59ae33c9d38a95b6844948d7d265fa59ea25899c64fb5385acbdff3c7d"`
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling gettext-sys v0.19.9
[INFO] [stderr]    Compiling derive-enum-error v0.0.1
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking libc-strftime v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking locale_config v0.2.3
[INFO] [stderr] error[E0284]: type annotations needed: cannot resolve `<std::string::String as std::ops::Add<&_>>::Output == _`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/locale_config-0.2.3/src/lib.rs:204:46
[INFO] [stderr]     |
[INFO] [stderr] 204 |                 Cow::Owned(String::from("-") +
[INFO] [stderr]     |                                              ^
[INFO] [stderr] 
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/locale_config-0.2.3/src/lib.rs:254:47
[INFO] [stderr]     |
[INFO] [stderr] 254 |                         language.into_owned() +
[INFO] [stderr]     |                                               ^ cannot infer type
[INFO] [stderr] 
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0282, E0284.
[INFO] [stderr] For more information about an error, try `rustc --explain E0282`.
[INFO] [stderr] error: could not compile `locale_config`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0626dd59ae33c9d38a95b6844948d7d265fa59ea25899c64fb5385acbdff3c7d"`
[INFO] running `"docker" "rm" "-f" "0626dd59ae33c9d38a95b6844948d7d265fa59ea25899c64fb5385acbdff3c7d"`
[INFO] [stdout] 0626dd59ae33c9d38a95b6844948d7d265fa59ea25899c64fb5385acbdff3c7d