[INFO] crate rlua 0.16.3 is already in cache
[INFO] extracting crate rlua 0.16.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/rlua/0.16.3
[INFO] extracting crate rlua 0.16.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rlua/0.16.3
[INFO] validating manifest of rlua-0.16.3 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rlua-0.16.3 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rlua-0.16.3
[INFO] finished frobbing rlua-0.16.3
[INFO] frobbed toml for rlua-0.16.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rlua/0.16.3/Cargo.toml
[INFO] started frobbing rlua-0.16.3
[INFO] finished frobbing rlua-0.16.3
[INFO] frobbed toml for rlua-0.16.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rlua/0.16.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rlua-0.16.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rlua/0.16.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a048020fa4a79b438ec2e31b20b9203f873728851ca37123d3ec2d78f05e9c5d
[INFO] running `"docker" "start" "-a" "a048020fa4a79b438ec2e31b20b9203f873728851ca37123d3ec2d78f05e9c5d"`
[INFO] [stderr]    Compiling rlua v0.16.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.52s
[INFO] running `"docker" "inspect" "a048020fa4a79b438ec2e31b20b9203f873728851ca37123d3ec2d78f05e9c5d"`
[INFO] running `"docker" "rm" "-f" "a048020fa4a79b438ec2e31b20b9203f873728851ca37123d3ec2d78f05e9c5d"`
[INFO] [stdout] a048020fa4a79b438ec2e31b20b9203f873728851ca37123d3ec2d78f05e9c5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rlua/0.16.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8cd9559e60a9ec8da3cc8ff101105fb8d4f942121ce068904508476e953e56f2
[INFO] running `"docker" "start" "-a" "8cd9559e60a9ec8da3cc8ff101105fb8d4f942121ce068904508476e953e56f2"`
[INFO] [stderr]    Compiling compiletest_rs v0.3.22
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling tester v0.5.0
[INFO] [stderr]    Compiling filetime v0.2.6
[INFO] [stderr]    Compiling rustfix v0.4.5
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling bstr v0.2.6
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling rustyline v3.0.0
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-3.0.0/src/lib.rs:655:43
[INFO] [stderr]     |
[INFO] [stderr] 655 |             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" "8cd9559e60a9ec8da3cc8ff101105fb8d4f942121ce068904508476e953e56f2"`
[INFO] running `"docker" "rm" "-f" "8cd9559e60a9ec8da3cc8ff101105fb8d4f942121ce068904508476e953e56f2"`
[INFO] [stdout] 8cd9559e60a9ec8da3cc8ff101105fb8d4f942121ce068904508476e953e56f2