[INFO] fetching crate wars-rt 0.7.1...
[INFO] building wars-rt-0.7.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate wars-rt 0.7.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate wars-rt 0.7.1
[INFO] finished tweaking crates.io crate wars-rt 0.7.1
[INFO] tweaked toml for crates.io crate wars-rt 0.7.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wars-rt 0.7.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wars-rt 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5c6c97f0aa82888ba6a284afee408f4465c43be1ffe05dd15cd70effefe91a9
[INFO] running `Command { std: "docker" "start" "-a" "a5c6c97f0aa82888ba6a284afee408f4465c43be1ffe05dd15cd70effefe91a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5c6c97f0aa82888ba6a284afee408f4465c43be1ffe05dd15cd70effefe91a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c6c97f0aa82888ba6a284afee408f4465c43be1ffe05dd15cd70effefe91a9", kill_on_drop: false }`
[INFO] [stdout] a5c6c97f0aa82888ba6a284afee408f4465c43be1ffe05dd15cd70effefe91a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9dc94af8bff5ddae9f3d340117f2ad5d4603f0fdb4dc7911b2fe4c3b53c9e41
[INFO] running `Command { std: "docker" "start" "-a" "d9dc94af8bff5ddae9f3d340117f2ad5d4603f0fdb4dc7911b2fe4c3b53c9e41", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling portal-pc-tramp v0.3.0+portal
[INFO] [stderr]    Compiling tuple_list v0.1.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling derive_more v0.99.19
[INFO] [stderr]    Compiling wars-rt v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/func/unsync.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func/unsync.rs:286:14
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:131:33
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.extend((0..x).map(|a| 0u8));
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/func/unsync.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 19 ~     fn go(mut self) -> impl std::future::Future<Output = T> + Send
[INFO] [stdout] 20 |     where
[INFO] [stdout] 21 |         Self: Sized,
[INFO] [stdout] 22 ~     {async {
[INFO] [stdout] 23 |         return self.await.go().await;
[INFO] [stdout] 24 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.46s
[INFO] running `Command { std: "docker" "inspect" "d9dc94af8bff5ddae9f3d340117f2ad5d4603f0fdb4dc7911b2fe4c3b53c9e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dc94af8bff5ddae9f3d340117f2ad5d4603f0fdb4dc7911b2fe4c3b53c9e41", kill_on_drop: false }`
[INFO] [stdout] d9dc94af8bff5ddae9f3d340117f2ad5d4603f0fdb4dc7911b2fe4c3b53c9e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d55da5ec10975beeb95378c09faeaeae1a8c9ab2ee394b6985a2bf8ecc2dbe24
[INFO] running `Command { std: "docker" "start" "-a" "d55da5ec10975beeb95378c09faeaeae1a8c9ab2ee394b6985a2bf8ecc2dbe24", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.3.0+portal` for dependency `portal-pc-tramp` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/func/unsync.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func/unsync.rs:286:14
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:131:33
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.extend((0..x).map(|a| 0u8));
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/func/unsync.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 19 ~     fn go(mut self) -> impl std::future::Future<Output = T> + Send
[INFO] [stdout] 20 |     where
[INFO] [stdout] 21 |         Self: Sized,
[INFO] [stdout] 22 ~     {async {
[INFO] [stdout] 23 |         return self.await.go().await;
[INFO] [stdout] 24 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wars-rt v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/func/unsync.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:131:33
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.extend((0..x).map(|a| 0u8));
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/func/unsync.rs:286:14
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn uncoe(a: Vec<Value<C>>) -> anyhow::Result<Self> {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> src/func/unsync.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     async fn go(mut self) -> T
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 19 ~     fn go(mut self) -> impl std::future::Future<Output = T> + Send
[INFO] [stdout] 20 |     where
[INFO] [stdout] 21 |         Self: Sized,
[INFO] [stdout] 22 ~     {async {
[INFO] [stdout] 23 |         return self.await.go().await;
[INFO] [stdout] 24 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "d55da5ec10975beeb95378c09faeaeae1a8c9ab2ee394b6985a2bf8ecc2dbe24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55da5ec10975beeb95378c09faeaeae1a8c9ab2ee394b6985a2bf8ecc2dbe24", kill_on_drop: false }`
[INFO] [stdout] d55da5ec10975beeb95378c09faeaeae1a8c9ab2ee394b6985a2bf8ecc2dbe24
