[INFO] crate thruster-async-await 0.7.3 is already in cache
[INFO] extracting crate thruster-async-await 0.7.3 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/thruster-async-await/0.7.3
[INFO] extracting crate thruster-async-await 0.7.3 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/thruster-async-await/0.7.3
[INFO] validating manifest of thruster-async-await-0.7.3 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 thruster-async-await-0.7.3 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 thruster-async-await-0.7.3
[INFO] finished frobbing thruster-async-await-0.7.3
[INFO] frobbed toml for thruster-async-await-0.7.3 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/thruster-async-await/0.7.3/Cargo.toml
[INFO] started frobbing thruster-async-await-0.7.3
[INFO] finished frobbing thruster-async-await-0.7.3
[INFO] frobbed toml for thruster-async-await-0.7.3 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/thruster-async-await/0.7.3/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 thruster-async-await-0.7.3 against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/thruster-async-await/0.7.3:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ac38bb2ecb8cb528705f2f1f1e8faf9e2f1dc77767bdc797417290194ce3c3c1
[INFO] running `"docker" "start" "-a" "ac38bb2ecb8cb528705f2f1f1e8faf9e2f1dc77767bdc797417290194ce3c3c1"`
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]     Checking futures-core v0.2.1
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking futures-channel v0.2.1
[INFO] [stderr]     Checking futures-io v0.2.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-async-await v0.1.7
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking futures-sink v0.2.1
[INFO] [stderr]     Checking futures-util v0.2.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking thruster-core-async-await v0.7.3
[INFO] [stderr]     Checking thruster-core v0.7.3
[INFO] [stderr]     Checking thruster-async-await v0.7.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `middleware`
[INFO] [stderr]   --> src/lib.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |   let middleware = matched_route.middleware;
[INFO] [stderr]    |       ^^^^^^^^^^ help: consider prefixing with an underscore: `_middleware`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `futures_api` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(await_macro, async_await, futures_api, proc_macro_hygiene)]
[INFO] [stderr]   |                                      ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `middleware`
[INFO] [stderr]   --> src/lib.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |   let middleware = matched_route.middleware;
[INFO] [stderr]    |       ^^^^^^^^^^ help: consider prefixing with an underscore: `_middleware`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `futures_api` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(await_macro, async_await, futures_api, proc_macro_hygiene)]
[INFO] [stderr]   |                                      ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.11s
[INFO] running `"docker" "inspect" "ac38bb2ecb8cb528705f2f1f1e8faf9e2f1dc77767bdc797417290194ce3c3c1"`
[INFO] running `"docker" "rm" "-f" "ac38bb2ecb8cb528705f2f1f1e8faf9e2f1dc77767bdc797417290194ce3c3c1"`
[INFO] [stdout] ac38bb2ecb8cb528705f2f1f1e8faf9e2f1dc77767bdc797417290194ce3c3c1