[INFO] updating cached repository https://github.com/mrobakowski/mulperc
[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] 38979108f3ca8ebc616f34fb63263642c095d760
[INFO] checking mrobakowski/mulperc against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrobakowski%2Fmulperc" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrobakowski/mulperc on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mrobakowski/mulperc
[INFO] finished tweaking git repo https://github.com/mrobakowski/mulperc
[INFO] tweaked toml for git repo https://github.com/mrobakowski/mulperc written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mrobakowski/mulperc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] ff7483064e592dfa31b596cb2c8b49e4b7263388343dd64c1b5469b463cc04a0
[INFO] running `"docker" "start" "-a" "ff7483064e592dfa31b596cb2c8b49e4b7263388343dd64c1b5469b463cc04a0"`
[INFO] [stderr]    Compiling phf_shared v0.7.20
[INFO] [stderr]    Compiling serde v0.8.19
[INFO] [stderr]    Compiling quote v0.3.8
[INFO] [stderr]     Checking fixedbitset v0.1.5
[INFO] [stderr]     Checking find_folder v0.3.0
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]    Compiling nfd v0.0.4
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking shared_library v0.1.5
[INFO] [stderr]     Checking bincode v0.6.0
[INFO] [stderr]     Checking nodrop v0.1.8
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking stb_truetype v0.2.0
[INFO] [stderr]     Checking pistoncore-input v0.14.0
[INFO] [stderr]    Compiling x11-dl v2.11.0
[INFO] [stderr]    Compiling syn v0.10.3
[INFO] [stderr]    Compiling phf v0.7.20
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling glium v0.15.0
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]     Checking arrayvec v0.3.20
[INFO] [stderr]     Checking clap v2.19.0
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]     Checking pbr v1.0.0-alpha.1
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking nalgebra v0.10.1
[INFO] [stderr] error[E0283]: type annotations needed for `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pbr-1.0.0-alpha.1/src/pb.rs:363:64
[INFO] [stderr]     |
[INFO] [stderr] 306 |         let mut base = String::new();
[INFO] [stderr]     |             -------- consider giving `base` a type
[INFO] [stderr] ...
[INFO] [stderr] 363 |                         base = base + repeat!(self.bar_current.as_ref(), curr_count - 1) +
[INFO] [stderr]     |                                                                ^^^^^^ cannot infer type for struct `std::string::String`
[INFO] [stderr]     |
[INFO] [stderr]     = note: cannot satisfy `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: could not compile `pbr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ff7483064e592dfa31b596cb2c8b49e4b7263388343dd64c1b5469b463cc04a0"`
[INFO] running `"docker" "rm" "-f" "ff7483064e592dfa31b596cb2c8b49e4b7263388343dd64c1b5469b463cc04a0"`
[INFO] [stdout] ff7483064e592dfa31b596cb2c8b49e4b7263388343dd64c1b5469b463cc04a0