[INFO] crate ishmael 0.1.2 is already in cache
[INFO] extracting crate ishmael 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/ishmael/0.1.2
[INFO] extracting crate ishmael 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ishmael/0.1.2
[INFO] validating manifest of ishmael-0.1.2 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 ishmael-0.1.2 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 ishmael-0.1.2
[INFO] finished frobbing ishmael-0.1.2
[INFO] frobbed toml for ishmael-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/ishmael/0.1.2/Cargo.toml
[INFO] started frobbing ishmael-0.1.2
[INFO] finished frobbing ishmael-0.1.2
[INFO] frobbed toml for ishmael-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/ishmael/0.1.2/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 ishmael-0.1.2 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/reg/ishmael/0.1.2:/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] 704b3176e3907764dedcc2bbf215004f26566ac288ccf479c9fda78c813200dd
[INFO] running `"docker" "start" "-a" "704b3176e3907764dedcc2bbf215004f26566ac288ccf479c9fda78c813200dd"`
[INFO] [stderr]    Compiling curl-sys v0.1.35
[INFO] [stderr]    Compiling curl v0.2.19
[INFO] [stderr]    Compiling ishmael v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] error: environment variable `GITHUB_API_KEY` not defined
[INFO] [stderr]   --> src/ishmael/client.rs:25:41
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let token = format!("token {}", env!("GITHUB_API_KEY"));
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ishmael`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "704b3176e3907764dedcc2bbf215004f26566ac288ccf479c9fda78c813200dd"`
[INFO] running `"docker" "rm" "-f" "704b3176e3907764dedcc2bbf215004f26566ac288ccf479c9fda78c813200dd"`
[INFO] [stdout] 704b3176e3907764dedcc2bbf215004f26566ac288ccf479c9fda78c813200dd