[INFO] updating cached repository https://github.com/arnodb/torus_trooper_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] cc807875c86649dd11818bb2d14182fe9b3266cc
[INFO] checking arnodb/torus_trooper_rs against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnodb%2Ftorus_trooper_rs" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arnodb/torus_trooper_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/arnodb/torus_trooper_rs
[INFO] finished tweaking git repo https://github.com/arnodb/torus_trooper_rs
[INFO] tweaked toml for git repo https://github.com/arnodb/torus_trooper_rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/arnodb/torus_trooper_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] [stderr] warning: unused manifest key: dependencies.preferences.revision
[INFO] running `"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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22147400d8670c8a49b321f6e924b586baa686ce6073e288b4f442d3fe6c26f8
[INFO] running `"docker" "start" "-a" "22147400d8670c8a49b321f6e924b586baa686ce6073e288b4f442d3fe6c26f8"`
[INFO] [stderr] warning: unused manifest key: dependencies.preferences.revision
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]     Checking xmlparser v0.7.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rusttype v0.7.5
[INFO] [stderr]    Compiling torus_trooper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking preferences v2.0.0 (https://github.com/Eh2406/preferences-rs.git?branch=patch-1#4f426cf5)
[INFO] [stderr]     Checking roxmltree v0.3.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[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-0.3.0/src/parse.rs:647:71
[INFO] [stderr]     |
[INFO] [stderr] 647 |                         *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" "22147400d8670c8a49b321f6e924b586baa686ce6073e288b4f442d3fe6c26f8"`
[INFO] running `"docker" "rm" "-f" "22147400d8670c8a49b321f6e924b586baa686ce6073e288b4f442d3fe6c26f8"`
[INFO] [stdout] 22147400d8670c8a49b321f6e924b586baa686ce6073e288b4f442d3fe6c26f8