[INFO] crate emuman 1.8.2 is already in cache
[INFO] checking emuman-1.8.2 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate emuman 1.8.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate emuman 1.8.2 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate emuman 1.8.2
[INFO] finished tweaking crates.io crate emuman 1.8.2
[INFO] tweaked toml for crates.io crate emuman 1.8.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate emuman 1.8.2 already has a lockfile, it will not be regenerated
[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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 25e1b86385b17acf60e18eb9439875dfc4a266e508ab595c90fd168fe7c93ca4
[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" "25e1b86385b17acf60e18eb9439875dfc4a266e508ab595c90fd168fe7c93ca4"`
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking half v1.3.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking console v0.9.0
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking serde_cbor v0.10.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking roxmltree v0.7.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr] error[E0284]: type annotations needed: cannot resolve `<std::string::String as std::ops::Add<&_>>::Output == std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/roxmltree-0.7.1/src/parse.rs:708:71
[INFO] [stderr]     |
[INFO] [stderr] 708 |                         *prev_text = Cow::Owned(prev_text.to_string() + text.borrow());
[INFO] [stderr]     |                                                                       ^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0284`.
[INFO] [stderr] error: could not compile `roxmltree`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "25e1b86385b17acf60e18eb9439875dfc4a266e508ab595c90fd168fe7c93ca4"`
[INFO] running `"docker" "rm" "-f" "25e1b86385b17acf60e18eb9439875dfc4a266e508ab595c90fd168fe7c93ca4"`
[INFO] [stdout] 25e1b86385b17acf60e18eb9439875dfc4a266e508ab595c90fd168fe7c93ca4