[INFO] cloning repository psFried/pgen
[INFO] running `"git" "clone" "--bare" "git://github.com/psFried/pgen.git" "work/cache/sources/gh/psFried/pgen"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/psFried/pgen'...
[INFO] running `"git" "clone" "work/cache/sources/gh/psFried/pgen" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/psFried/pgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/psFried/pgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/psFried/pgen" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/psFried/pgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/psFried/pgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 008a4c680cd3651da5442780076523df1e8df86e
[INFO] sha for GitHub repo psFried/pgen: 008a4c680cd3651da5442780076523df1e8df86e
[INFO] validating manifest of psFried/pgen on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of psFried/pgen on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing psFried/pgen
[INFO] finished frobbing psFried/pgen
[INFO] frobbed toml for psFried/pgen written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/psFried/pgen/Cargo.toml
[INFO] started frobbing psFried/pgen
[INFO] finished frobbing psFried/pgen
[INFO] frobbed toml for psFried/pgen written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/psFried/pgen/Cargo.toml
[INFO] crate psFried/pgen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking psFried/pgen against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/psFried/pgen:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c82edb3cba8a76a1b67be5a6a0cf5eef8f7c770e2b8ad123a16d890208b8c3d1
[INFO] running `"docker" "start" "-a" "c82edb3cba8a76a1b67be5a6a0cf5eef8f7c770e2b8ad123a16d890208b8c3d1"`
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]     Checking criterion-plot v0.2.5
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking itertools-num v0.1.2
[INFO] [stderr]     Checking criterion-stats v0.2.5
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling digest v0.7.4
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking rustyline v3.0.0
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]    Compiling ena v0.9.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling syn v0.15.14
[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]    Compiling sha2 v0.7.1
[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" "c82edb3cba8a76a1b67be5a6a0cf5eef8f7c770e2b8ad123a16d890208b8c3d1"`
[INFO] running `"docker" "rm" "-f" "c82edb3cba8a76a1b67be5a6a0cf5eef8f7c770e2b8ad123a16d890208b8c3d1"`
[INFO] [stdout] c82edb3cba8a76a1b67be5a6a0cf5eef8f7c770e2b8ad123a16d890208b8c3d1