[INFO] cloning repository https://github.com/swapsCAPS/rust-bme680-prometheus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swapsCAPS/rust-bme680-prometheus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FswapsCAPS%2Frust-bme680-prometheus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FswapsCAPS%2Frust-bme680-prometheus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99d33a43818d93f364322cf6f25a85cdcbbaea21
[INFO] checking swapsCAPS/rust-bme680-prometheus against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FswapsCAPS%2Frust-bme680-prometheus" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/swapsCAPS/rust-bme680-prometheus
[INFO] finished tweaking git repo https://github.com/swapsCAPS/rust-bme680-prometheus
[INFO] tweaked toml for git repo https://github.com/swapsCAPS/rust-bme680-prometheus written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swapsCAPS/rust-bme680-prometheus 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] crate git repo https://github.com/swapsCAPS/rust-bme680-prometheus 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] cf0b2117af896509ff1de0dae6355d44276a3b158c6f37a7aa34977eeb4425d1
[INFO] running `Command { std: "docker" "start" "-a" "cf0b2117af896509ff1de0dae6355d44276a3b158c6f37a7aa34977eeb4425d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf0b2117af896509ff1de0dae6355d44276a3b158c6f37a7aa34977eeb4425d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0b2117af896509ff1de0dae6355d44276a3b158c6f37a7aa34977eeb4425d1", kill_on_drop: false }`
[INFO] [stdout] cf0b2117af896509ff1de0dae6355d44276a3b158c6f37a7aa34977eeb4425d1
[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] e50b203018b3915ac80ef1d7a73b9fa446c83edfb938bdb3149f9ac4de4b20ef
[INFO] running `Command { std: "docker" "start" "-a" "e50b203018b3915ac80ef1d7a73b9fa446c83edfb938bdb3149f9ac4de4b20ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling protobuf v2.8.1
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking bme680 v0.5.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking spidev v0.4.0
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking linux-embedded-hal v0.3.0
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking bme680-exporter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:52:78
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn prom(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 53 | |         let encoder = TextEncoder::new();
[INFO] [stdout] 54 | |         let mut buffer = vec![];
[INFO] [stdout] 55 | |         let metric_families = prometheus::gather();
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         Ok(response)
[INFO] [stdout] 65 | |     }
[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<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:52:78
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn prom(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 53 | |         let encoder = TextEncoder::new();
[INFO] [stdout] 54 | |         let mut buffer = vec![];
[INFO] [stdout] 55 | |         let metric_families = prometheus::gather();
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         Ok(response)
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Ok(response)
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {prom}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:67:50
[INFO] [stdout]    |
[INFO] [stdout] 67 |       let make_svc = make_service_fn(|_conn| async {
[INFO] [stdout]    |  __________________________________________________^
[INFO] [stdout] 68 | |         Ok::<_, Infallible>(service_fn(prom))
[INFO] [stdout] 69 | |     });
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {prom}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Ok::<_, Infallible>(service_fn(prom))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bme680-exporter` (bin "bme680-exporter" test) due to 5 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:52:78
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn prom(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 53 | |         let encoder = TextEncoder::new();
[INFO] [stdout] 54 | |         let mut buffer = vec![];
[INFO] [stdout] 55 | |         let metric_families = prometheus::gather();
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         Ok(response)
[INFO] [stdout] 65 | |     }
[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] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:52:78
[INFO] [stdout]    |
[INFO] [stdout] 52 |       async fn prom(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  ______________________________________________________________________________^
[INFO] [stdout] 53 | |         let encoder = TextEncoder::new();
[INFO] [stdout] 54 | |         let mut buffer = vec![];
[INFO] [stdout] 55 | |         let metric_families = prometheus::gather();
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         Ok(response)
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Ok(response)
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {prom}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:67:50
[INFO] [stdout]    |
[INFO] [stdout] 67 |       let make_svc = make_service_fn(|_conn| async {
[INFO] [stdout]    |  __________________________________________________^
[INFO] [stdout] 68 | |         Ok::<_, Infallible>(service_fn(prom))
[INFO] [stdout] 69 | |     });
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {prom}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Ok::<_, Infallible>(service_fn(prom))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bme680-exporter` (bin "bme680-exporter") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "e50b203018b3915ac80ef1d7a73b9fa446c83edfb938bdb3149f9ac4de4b20ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50b203018b3915ac80ef1d7a73b9fa446c83edfb938bdb3149f9ac4de4b20ef", kill_on_drop: false }`
[INFO] [stdout] e50b203018b3915ac80ef1d7a73b9fa446c83edfb938bdb3149f9ac4de4b20ef
