[INFO] updating cached repository zaphar/ucg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zaphar/ucg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zaphar/ucg" "work/ex/beta-1.37-6/sources/1.36.0/gh/zaphar/ucg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zaphar/ucg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zaphar/ucg" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaphar/ucg"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaphar/ucg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d08a84eabf23df1aeb6659585b4e06d5ac51ea7
[INFO] sha for GitHub repo zaphar/ucg: 1d08a84eabf23df1aeb6659585b4e06d5ac51ea7
[INFO] validating manifest of zaphar/ucg 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 zaphar/ucg 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 zaphar/ucg
[INFO] finished frobbing zaphar/ucg
[INFO] frobbed toml for zaphar/ucg written to work/ex/beta-1.37-6/sources/1.36.0/gh/zaphar/ucg/Cargo.toml
[INFO] started frobbing zaphar/ucg
[INFO] finished frobbing zaphar/ucg
[INFO] frobbed toml for zaphar/ucg written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaphar/ucg/Cargo.toml
[INFO] crate zaphar/ucg already has a lockfile, it will not be regenerated
[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 zaphar/ucg 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/zaphar/ucg:/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] aedba36a7abdebfc9c889055edfb7460ede779a799fcbdda5aef00c542582e2f
[INFO] running `"docker" "start" "-a" "aedba36a7abdebfc9c889055edfb7460ede779a799fcbdda5aef00c542582e2f"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling abortable_parser v0.2.3
[INFO] [stderr]    Compiling simple-error v0.1.12
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling ucg v0.6.2 (/opt/crater/workdir)
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_yaml v0.8.9
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> src/build/mod.rs:226:22
[INFO] [stderr]     |
[INFO] [stderr] 226 |                     .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 `ucg`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "aedba36a7abdebfc9c889055edfb7460ede779a799fcbdda5aef00c542582e2f"`
[INFO] running `"docker" "rm" "-f" "aedba36a7abdebfc9c889055edfb7460ede779a799fcbdda5aef00c542582e2f"`
[INFO] [stdout] aedba36a7abdebfc9c889055edfb7460ede779a799fcbdda5aef00c542582e2f