[INFO] fetching crate provide 0.0.1...
[INFO] checking provide-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate provide 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate provide 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate provide 0.0.1
[INFO] tweaked toml for crates.io crate provide 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate provide 0.0.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d22f34d522a2975595528e6997ad514d8969365ed0ce766e0df7d2055fb65d2f
[INFO] running `Command { std: "docker" "start" "-a" "d22f34d522a2975595528e6997ad514d8969365ed0ce766e0df7d2055fb65d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d22f34d522a2975595528e6997ad514d8969365ed0ce766e0df7d2055fb65d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d22f34d522a2975595528e6997ad514d8969365ed0ce766e0df7d2055fb65d2f", kill_on_drop: false }`
[INFO] [stdout] d22f34d522a2975595528e6997ad514d8969365ed0ce766e0df7d2055fb65d2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba9d67c232aa63f7a8a2d029449a6bf1461309310b9f89f7d3b88dcf876e7788
[INFO] running `Command { std: "docker" "start" "-a" "ba9d67c232aa63f7a8a2d029449a6bf1461309310b9f89f7d3b88dcf876e7788", kill_on_drop: false }`
[INFO] [stderr]     Checking provide v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as ProvideWith<T, C>>::Remainder), Infallible>
[INFO] [stdout]   --> src/with/provide/owned.rs:79:88
[INFO] [stdout]    |
[INFO] [stdout] 79 |       fn try_provide_with(self, context: C) -> Result<(T, Self::Remainder), Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 80 | |         let provide_with = self.provide_with(context);
[INFO] [stdout] 81 | |         Ok(provide_with)
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as ProvideWith<T, C>>::Remainder), Infallible>
[INFO] [stdout]   --> src/with/provide/owned.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         Ok(provide_with)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as Provide<T>>::Remainder), Infallible>
[INFO] [stdout]   --> src/provide/owned.rs:74:71
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn try_provide(self) -> Result<(T, Self::Remainder), Self::Error> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 75 | |         let provide = self.provide();
[INFO] [stdout] 76 | |         Ok(provide)
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as Provide<T>>::Remainder), Infallible>
[INFO] [stdout]   --> src/provide/owned.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Ok(provide)
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as ProvideWith<T, C>>::Remainder), Infallible>
[INFO] [stdout]   --> src/with/provide/owned.rs:79:88
[INFO] [stdout]    |
[INFO] [stdout] 79 |       fn try_provide_with(self, context: C) -> Result<(T, Self::Remainder), Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 80 | |         let provide_with = self.provide_with(context);
[INFO] [stdout] 81 | |         Ok(provide_with)
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as ProvideWith<T, C>>::Remainder), Infallible>
[INFO] [stdout]   --> src/with/provide/owned.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         Ok(provide_with)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as Provide<T>>::Remainder), Infallible>
[INFO] [stdout]   --> src/provide/owned.rs:74:71
[INFO] [stdout]    |
[INFO] [stdout] 74 |       fn try_provide(self) -> Result<(T, Self::Remainder), Self::Error> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 75 | |         let provide = self.provide();
[INFO] [stdout] 76 | |         Ok(provide)
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(T, <U as Provide<T>>::Remainder), Infallible>
[INFO] [stdout]   --> src/provide/owned.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         Ok(provide)
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `provide` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `provide` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ba9d67c232aa63f7a8a2d029449a6bf1461309310b9f89f7d3b88dcf876e7788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba9d67c232aa63f7a8a2d029449a6bf1461309310b9f89f7d3b88dcf876e7788", kill_on_drop: false }`
[INFO] [stdout] ba9d67c232aa63f7a8a2d029449a6bf1461309310b9f89f7d3b88dcf876e7788