[INFO] crate lamcal-repl 0.4.0 is already in cache
[INFO] checking lamcal-repl-0.4.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate lamcal-repl 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate lamcal-repl 0.4.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lamcal-repl 0.4.0
[INFO] finished tweaking crates.io crate lamcal-repl 0.4.0
[INFO] tweaked toml for crates.io crate lamcal-repl 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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=allow" "-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" "+beta-2019-10-27" "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] 89fa4d9a27d6ee2866591c1943fa1567979920314f9f9dc57fd19c14d44e39d3
[INFO] running `"docker" "start" "-a" "89fa4d9a27d6ee2866591c1943fa1567979920314f9f9dc57fd19c14d44e39d3"`
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking rustyline v2.1.0
[INFO] [stderr]     Checking lamcal v0.4.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/lib.rs:639:43
[INFO] [stderr]     |
[INFO] [stderr] 639 |             editor.add_history_entry(line.as_ref());
[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 E0283`.
[INFO] [stderr] error: could not compile `rustyline`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "89fa4d9a27d6ee2866591c1943fa1567979920314f9f9dc57fd19c14d44e39d3"`
[INFO] running `"docker" "rm" "-f" "89fa4d9a27d6ee2866591c1943fa1567979920314f9f9dc57fd19c14d44e39d3"`
[INFO] [stdout] 89fa4d9a27d6ee2866591c1943fa1567979920314f9f9dc57fd19c14d44e39d3