[INFO] updating cached repository jkcclemens/mod_mail
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jkcclemens/mod_mail
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jkcclemens/mod_mail" "work/ex/clippy-test-run/sources/stable/gh/jkcclemens/mod_mail"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jkcclemens/mod_mail'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jkcclemens/mod_mail" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkcclemens/mod_mail"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkcclemens/mod_mail'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e69637a223687600d01c9a67af90bb9faa9a120
[INFO] sha for GitHub repo jkcclemens/mod_mail: 6e69637a223687600d01c9a67af90bb9faa9a120
[INFO] validating manifest of jkcclemens/mod_mail on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jkcclemens/mod_mail on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jkcclemens/mod_mail
[INFO] finished frobbing jkcclemens/mod_mail
[INFO] frobbed toml for jkcclemens/mod_mail written to work/ex/clippy-test-run/sources/stable/gh/jkcclemens/mod_mail/Cargo.toml
[INFO] started frobbing jkcclemens/mod_mail
[INFO] finished frobbing jkcclemens/mod_mail
[INFO] frobbed toml for jkcclemens/mod_mail written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkcclemens/mod_mail/Cargo.toml
[INFO] crate jkcclemens/mod_mail has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting jkcclemens/mod_mail against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/jkcclemens/mod_mail:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 106e232115a0e05d7111345dbecdadf6690f9435e2b31b68e7fbf82f3c9105b0
[INFO] running `"docker" "start" "-a" "106e232115a0e05d7111345dbecdadf6690f9435e2b31b68e7fbf82f3c9105b0"`
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]     Checking r2d2 v0.8.2
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking flate2 v1.0.3
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]     Checking postgres-shared v0.4.2
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking r2d2-diesel v1.0.0
[INFO] [stderr]     Checking evzht9h3nznqzwl v0.0.3
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking multipart v0.13.6
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]     Checking serenity v0.5.9
[INFO] [stderr]     Checking mod_mail v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[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 E0554`.
[INFO] [stderr] error: Could not compile `mod_mail`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[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 E0554`.
[INFO] [stderr] error: Could not compile `mod_mail`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "106e232115a0e05d7111345dbecdadf6690f9435e2b31b68e7fbf82f3c9105b0"`
[INFO] running `"docker" "rm" "-f" "106e232115a0e05d7111345dbecdadf6690f9435e2b31b68e7fbf82f3c9105b0"`
[INFO] [stdout] 106e232115a0e05d7111345dbecdadf6690f9435e2b31b68e7fbf82f3c9105b0