[INFO] cloning repository https://github.com/noslopy/cowfi_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noslopy/cowfi_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoslopy%2Fcowfi_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoslopy%2Fcowfi_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b552b7f61e834659535beffec98a15585fb03f0b
[INFO] checking noslopy/cowfi_test against master#e9182f195b8505c87c4bd055b9f6e114ccda0981 for pr-144098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoslopy%2Fcowfi_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/noslopy/cowfi_test
[INFO] finished tweaking git repo https://github.com/noslopy/cowfi_test
[INFO] tweaked toml for git repo https://github.com/noslopy/cowfi_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/noslopy/cowfi_test on toolchain e9182f195b8505c87c4bd055b9f6e114ccda0981
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/noslopy/cowfi_test 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" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a75bfc479a8be27b9e36e2345c53308987f8ab0221c22d865a18126ff8c6754
[INFO] running `Command { std: "docker" "start" "-a" "7a75bfc479a8be27b9e36e2345c53308987f8ab0221c22d865a18126ff8c6754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a75bfc479a8be27b9e36e2345c53308987f8ab0221c22d865a18126ff8c6754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a75bfc479a8be27b9e36e2345c53308987f8ab0221c22d865a18126ff8c6754", kill_on_drop: false }`
[INFO] [stdout] 7a75bfc479a8be27b9e36e2345c53308987f8ab0221c22d865a18126ff8c6754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f70f843342f37279905252898d0bdf16b9d5583e60f576b690c6f76b9f34840a
[INFO] running `Command { std: "docker" "start" "-a" "f70f843342f37279905252898d0bdf16b9d5583e60f576b690c6f76b9f34840a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking streamed_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `api`
[INFO] [stdout]   --> src/lib.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn update_in_background(&self, api: impl Api) {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_api`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn subscribe(&self) -> BoxStream<Result<(City, Temperature), String>>;
[INFO] [stdout]    |                        ^         ---------------------------------------------- the lifetime gets resolved as `'life0`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'life0`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn subscribe(&self) -> BoxStream<'life0, Result<(City, Temperature), String>>;
[INFO] [stdout]    |                                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `api`
[INFO] [stdout]   --> src/lib.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn update_in_background(&self, api: impl Api) {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_api`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn subscribe(&self) -> BoxStream<Result<(City, Temperature), String>>;
[INFO] [stdout]    |                        ^         ---------------------------------------------- the lifetime gets resolved as `'life0`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'life0`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     async fn subscribe(&self) -> BoxStream<'life0, Result<(City, Temperature), String>>;
[INFO] [stdout]    |                                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |         async fn subscribe(&self) -> BoxStream<Result<(City, Temperature), String>> {
[INFO] [stdout]    |                            ^         ---------------------------------------------- the lifetime gets resolved as `'life0`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'life0`
[INFO] [stdout]    |
[INFO] [stdout] 67 |         async fn subscribe(&self) -> BoxStream<'life0, Result<(City, Temperature), String>> {
[INFO] [stdout]    |                                                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.73s
[INFO] running `Command { std: "docker" "inspect" "f70f843342f37279905252898d0bdf16b9d5583e60f576b690c6f76b9f34840a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70f843342f37279905252898d0bdf16b9d5583e60f576b690c6f76b9f34840a", kill_on_drop: false }`
[INFO] [stdout] f70f843342f37279905252898d0bdf16b9d5583e60f576b690c6f76b9f34840a