[INFO] crate tower-web 0.3.7 is already in cache
[INFO] extracting crate tower-web 0.3.7 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/tower-web/0.3.7
[INFO] extracting crate tower-web 0.3.7 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/tower-web/0.3.7
[INFO] validating manifest of tower-web-0.3.7 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tower-web-0.3.7 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tower-web-0.3.7
[INFO] finished frobbing tower-web-0.3.7
[INFO] frobbed toml for tower-web-0.3.7 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/tower-web/0.3.7/Cargo.toml
[INFO] started frobbing tower-web-0.3.7
[INFO] finished frobbing tower-web-0.3.7
[INFO] frobbed toml for tower-web-0.3.7 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/tower-web/0.3.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tower-web-0.3.7 against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/tower-web/0.3.7:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef7c97d39afbf7263edd28c2a710d959709e2f0d30539a5676e62533c4ebfde2
[INFO] running `"docker" "start" "-a" "ef7c97d39afbf7263edd28c2a710d959709e2f0d30539a5676e62533c4ebfde2"`
[INFO] [stderr]    Compiling headers-derive v0.1.0
[INFO] [stderr]    Compiling tower-web-macros v0.3.5
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]     Checking headers v0.2.1
[INFO] [stderr]     Checking tower-web v0.3.7 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/middleware/cors/config.rs:110:21
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 let mut headers = self.basic_headers();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/middleware/cors/config.rs:110:21
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 let mut headers = self.basic_headers();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:3:24
[INFO] [stderr]     |
[INFO] [stderr] 3   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(unused_mut)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `tower-web`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: the item `Future` is imported redundantly
[INFO] [stderr]    --> tests/support/mod.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 12  | pub use self::futures::Future;
[INFO] [stderr]     |         --------------------- the item `Future` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 113 |     use self::futures::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Future` is imported redundantly
[INFO] [stderr]    --> tests/support/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 12  | pub use self::futures::Future;
[INFO] [stderr]     |         --------------------- the item `Future` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 128 |     use self::futures::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Future` is imported redundantly
[INFO] [stderr]    --> tests/support/mod.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 12  | pub use self::futures::Future;
[INFO] [stderr]     |         --------------------- the item `Future` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 113 |     use self::futures::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Future` is imported redundantly
[INFO] [stderr]    --> tests/support/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 12  | pub use self::futures::Future;
[INFO] [stderr]     |         --------------------- the item `Future` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 128 |     use self::futures::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ef7c97d39afbf7263edd28c2a710d959709e2f0d30539a5676e62533c4ebfde2"`
[INFO] running `"docker" "rm" "-f" "ef7c97d39afbf7263edd28c2a710d959709e2f0d30539a5676e62533c4ebfde2"`
[INFO] [stdout] ef7c97d39afbf7263edd28c2a710d959709e2f0d30539a5676e62533c4ebfde2