[INFO] cloning repository alexanderbanks/rust-api
[INFO] running `"git" "clone" "--bare" "git://github.com/alexanderbanks/rust-api.git" "work/cache/sources/gh/alexanderbanks/rust-api"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/alexanderbanks/rust-api'...
[INFO] running `"git" "clone" "work/cache/sources/gh/alexanderbanks/rust-api" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/alexanderbanks/rust-api"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/alexanderbanks/rust-api'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexanderbanks/rust-api" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/alexanderbanks/rust-api"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/alexanderbanks/rust-api'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14f46cc7dfcd99c74257ecb3d67d334ad45d8e65
[INFO] sha for GitHub repo alexanderbanks/rust-api: 14f46cc7dfcd99c74257ecb3d67d334ad45d8e65
[INFO] validating manifest of alexanderbanks/rust-api on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alexanderbanks/rust-api on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alexanderbanks/rust-api
[INFO] finished frobbing alexanderbanks/rust-api
[INFO] frobbed toml for alexanderbanks/rust-api written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/alexanderbanks/rust-api/Cargo.toml
[INFO] started frobbing alexanderbanks/rust-api
[INFO] finished frobbing alexanderbanks/rust-api
[INFO] frobbed toml for alexanderbanks/rust-api written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/alexanderbanks/rust-api/Cargo.toml
[INFO] crate alexanderbanks/rust-api already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded frank_jwt v2.5.1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing alexanderbanks/rust-api against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/alexanderbanks/rust-api:/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=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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] d06ac776c3de9aa4e47b414359cc31da4515de3465dd0fe00d088b6d11869a13
[INFO] running `"docker" "start" "-a" "d06ac776c3de9aa4e47b414359cc31da4515de3465dd0fe00d088b6d11869a13"`
[INFO] [stderr]    Compiling openssl v0.9.19
[INFO] [stderr]    Compiling openssl-sys v0.9.19
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]    Compiling diesel v0.16.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.15
[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] 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" "d06ac776c3de9aa4e47b414359cc31da4515de3465dd0fe00d088b6d11869a13"`
[INFO] running `"docker" "rm" "-f" "d06ac776c3de9aa4e47b414359cc31da4515de3465dd0fe00d088b6d11869a13"`
[INFO] [stdout] d06ac776c3de9aa4e47b414359cc31da4515de3465dd0fe00d088b6d11869a13