[INFO] updating cached repository skaufhold/chatty-log-archiver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skaufhold/chatty-log-archiver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skaufhold/chatty-log-archiver" "work/ex/beta-1.37-6/sources/1.36.0/gh/skaufhold/chatty-log-archiver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/skaufhold/chatty-log-archiver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skaufhold/chatty-log-archiver" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/skaufhold/chatty-log-archiver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/skaufhold/chatty-log-archiver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c713b87eb953356ade5cfa0f0237e672efa13d78
[INFO] sha for GitHub repo skaufhold/chatty-log-archiver: c713b87eb953356ade5cfa0f0237e672efa13d78
[INFO] validating manifest of skaufhold/chatty-log-archiver 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 skaufhold/chatty-log-archiver 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 skaufhold/chatty-log-archiver
[INFO] finished frobbing skaufhold/chatty-log-archiver
[INFO] frobbed toml for skaufhold/chatty-log-archiver written to work/ex/beta-1.37-6/sources/1.36.0/gh/skaufhold/chatty-log-archiver/Cargo.toml
[INFO] started frobbing skaufhold/chatty-log-archiver
[INFO] finished frobbing skaufhold/chatty-log-archiver
[INFO] frobbed toml for skaufhold/chatty-log-archiver written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/skaufhold/chatty-log-archiver/Cargo.toml
[INFO] crate skaufhold/chatty-log-archiver 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 skaufhold/chatty-log-archiver against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/skaufhold/chatty-log-archiver:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 025674ff9bdea7f72fb8a6d481d4e190ba5d8793930d551a4221d2f1d36657db
[INFO] running `"docker" "start" "-a" "025674ff9bdea7f72fb8a6d481d4e190ba5d8793930d551a4221d2f1d36657db"`
[INFO] [stderr]    Compiling termcolor v0.3.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.15
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.2.3
[INFO] [stderr]    Compiling dotenv v0.10.1
[INFO] [stderr] error[E0659]: `error_chain` is ambiguous (derive helper attribute vs any other name)
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:23:40
[INFO] [stderr]    |
[INFO] [stderr] 23 | #[cfg_attr(not(feature = "backtrace"), error_chain(backtrace = "false"))]
[INFO] [stderr]    |                                        ^^^^^^^^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr] note: `error_chain` could refer to the derive helper attribute defined here
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Debug, error_chain)]
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr] note: `error_chain` could also refer to the derive macro imported here
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[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 E0659`.
[INFO] [stderr]    Compiling nom v3.2.0
[INFO] [stderr] error: Could not compile `dotenv`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "025674ff9bdea7f72fb8a6d481d4e190ba5d8793930d551a4221d2f1d36657db"`
[INFO] running `"docker" "rm" "-f" "025674ff9bdea7f72fb8a6d481d4e190ba5d8793930d551a4221d2f1d36657db"`
[INFO] [stdout] 025674ff9bdea7f72fb8a6d481d4e190ba5d8793930d551a4221d2f1d36657db