[INFO] fetching crate tower-cache 0.0.1...
[INFO] checking tower-cache-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tower-cache 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate tower-cache 0.0.1
[INFO] finished tweaking crates.io crate tower-cache 0.0.1
[INFO] tweaked toml for crates.io crate tower-cache 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-cache 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]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding lru v0.7.8 (available: v0.16.2)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.2)
[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] 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] cf641e148a9fb71b5da2e37993835b9f2b3a6b58862ab4685de1389c58b44d50
[INFO] running `Command { std: "docker" "start" "-a" "cf641e148a9fb71b5da2e37993835b9f2b3a6b58862ab4685de1389c58b44d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf641e148a9fb71b5da2e37993835b9f2b3a6b58862ab4685de1389c58b44d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf641e148a9fb71b5da2e37993835b9f2b3a6b58862ab4685de1389c58b44d50", kill_on_drop: false }`
[INFO] [stdout] cf641e148a9fb71b5da2e37993835b9f2b3a6b58862ab4685de1389c58b44d50
[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] b28df4a691a89d3f041316a4b84e19ce4f01ba931b3ef40af6c53a6016b12dea
[INFO] running `Command { std: "docker" "start" "-a" "b28df4a691a89d3f041316a4b84e19ce4f01ba931b3ef40af6c53a6016b12dea", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking lru v0.7.8
[INFO] [stderr]     Checking tower-cache v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `tower-cache` (lib) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<ProviderResponse<V>, Infallible>
[INFO] [stdout]   --> src/lru.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |           Box::pin(ready(Ok(match request {
[INFO] [stdout]    |  ________________________^
[INFO] [stdout] 56 | |             ProviderRequest::Get(key) => match self.inner.lock().unwrap().get(&key) {
[INFO] [stdout] 57 | |                 Some(value) => ProviderResponse::Found(value.clone()),
[INFO] [stdout] 58 | |                 None => ProviderResponse::NotFound,
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         })))
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b28df4a691a89d3f041316a4b84e19ce4f01ba931b3ef40af6c53a6016b12dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b28df4a691a89d3f041316a4b84e19ce4f01ba931b3ef40af6c53a6016b12dea", kill_on_drop: false }`
[INFO] [stdout] b28df4a691a89d3f041316a4b84e19ce4f01ba931b3ef40af6c53a6016b12dea
