[INFO] updating cached repository faradayio/credentials_to_env
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/faradayio/credentials_to_env
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/faradayio/credentials_to_env" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/faradayio/credentials_to_env"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/faradayio/credentials_to_env'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/faradayio/credentials_to_env" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/faradayio/credentials_to_env"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/faradayio/credentials_to_env'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e9edd697303cb651144e5b1e9fa9a74964b204a3
[INFO] sha for GitHub repo faradayio/credentials_to_env: e9edd697303cb651144e5b1e9fa9a74964b204a3
[INFO] validating manifest of faradayio/credentials_to_env on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of faradayio/credentials_to_env on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing faradayio/credentials_to_env
[INFO] finished frobbing faradayio/credentials_to_env
[INFO] frobbed toml for faradayio/credentials_to_env written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/faradayio/credentials_to_env/Cargo.toml
[INFO] started frobbing faradayio/credentials_to_env
[INFO] finished frobbing faradayio/credentials_to_env
[INFO] frobbed toml for faradayio/credentials_to_env written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/faradayio/credentials_to_env/Cargo.toml
[INFO] crate faradayio/credentials_to_env already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking faradayio/credentials_to_env against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-4/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/faradayio/credentials_to_env:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c9cf8943106ab188d8f119a5ff053f2510c9b77b14b1a6e9e68f21066c34b63a
[INFO] running `"docker" "start" "-a" "c9cf8943106ab188d8f119a5ff053f2510c9b77b14b1a6e9e68f21066c34b63a"`
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking hyper-tls v0.1.4
[INFO] [stderr]     Checking common_failures v0.1.1
[INFO] [stderr]     Checking reqwest v0.8.8
[INFO] [stderr]     Checking credentials v0.10.0
[INFO] [stderr]     Checking credentials_to_env v0.4.8 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:175:1
[INFO] [stderr]     |
[INFO] [stderr] 175 | /// An error-handling wrapper around `run`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 176 | quick_main!(run);
[INFO] [stderr]     | ----------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:175:1
[INFO] [stderr]     |
[INFO] [stderr] 175 | /// An error-handling wrapper around `run`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 176 | quick_main!(run);
[INFO] [stderr]     | ----------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.84s
[INFO] running `"docker" "inspect" "c9cf8943106ab188d8f119a5ff053f2510c9b77b14b1a6e9e68f21066c34b63a"`
[INFO] running `"docker" "rm" "-f" "c9cf8943106ab188d8f119a5ff053f2510c9b77b14b1a6e9e68f21066c34b63a"`
[INFO] [stdout] c9cf8943106ab188d8f119a5ff053f2510c9b77b14b1a6e9e68f21066c34b63a