[INFO] updating cached repository https://github.com/qeda/qeda-rs
[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] bcda49349ec6e4822ad6f8b41215480dce1b8552
[INFO] checking qeda/qeda-rs against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqeda%2Fqeda-rs" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qeda/qeda-rs 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/qeda/qeda-rs
[INFO] finished tweaking git repo https://github.com/qeda/qeda-rs
[INFO] tweaked toml for git repo https://github.com/qeda/qeda-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/qeda/qeda-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5b209da6536f6c60c4f738b7afd69393d3158b617df4a4c19a786d04a4ae3a18
[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" "5b209da6536f6c60c4f738b7afd69393d3158b617df4a4c19a786d04a4ae3a18"`
[INFO] [stderr]     Checking xmlparser v0.9.0
[INFO] [stderr]     Checking float-cmp v0.5.2
[INFO] [stderr]     Checking simplecss v0.1.0
[INFO] [stderr]     Checking openssl v0.10.24
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking svgtypes v0.4.4
[INFO] [stderr]     Checking roxmltree v0.6.1
[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-0.6.1/src/parse.rs:706:71
[INFO] [stderr]     |
[INFO] [stderr] 706 |                         *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" "5b209da6536f6c60c4f738b7afd69393d3158b617df4a4c19a786d04a4ae3a18"`
[INFO] running `"docker" "rm" "-f" "5b209da6536f6c60c4f738b7afd69393d3158b617df4a4c19a786d04a4ae3a18"`
[INFO] [stdout] 5b209da6536f6c60c4f738b7afd69393d3158b617df4a4c19a786d04a4ae3a18