[INFO] fetching crate grad 0.1.0...
[INFO] building grad-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate grad 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate grad 0.1.0
[INFO] finished tweaking crates.io crate grad 0.1.0
[INFO] tweaked toml for crates.io crate grad 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grad 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 222 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.4.12 (available: v1.10.1)
[INFO] [stderr]       Adding nom v4.2.3 (available: v8.0.0)
[INFO] [stderr]       Adding pretty_env_logger v0.2.5 (available: v0.5.0)
[INFO] [stderr]       Adding time v0.1.45 (available: v0.3.44)
[INFO] [stderr]       Adding tokio v0.1.22 (available: v1.47.1)
[INFO] [stderr]       Adding warp v0.1.23 (available: v0.4.2)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fake-simd v0.1.2
[INFO] [stderr]   Downloaded urlencoding v1.3.3
[INFO] [stderr]   Downloaded digest v0.8.1
[INFO] [stderr]   Downloaded block-buffer v0.7.3
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[INFO] [stderr]   Downloaded rand v0.6.5
[INFO] [stderr]   Downloaded hyper v0.12.36
[INFO] [stderr]   Downloaded http v0.1.21
[INFO] [stderr]   Downloaded mio v0.6.23
[INFO] [stderr]   Downloaded winapi v0.2.8
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[INFO] [stderr]   Downloaded rand_hc v0.1.0
[INFO] [stderr]   Downloaded rand_isaac v0.1.1
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
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[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.3
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded memoffset v0.5.6
[INFO] [stderr]   Downloaded iovec v0.1.4
[INFO] [stderr]   Downloaded phf_generator v0.7.24
[INFO] [stderr]   Downloaded rand_chacha v0.1.1
[INFO] [stderr]   Downloaded rand_pcg v0.1.2
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded serde_urlencoded v0.6.1
[INFO] [stderr]   Downloaded tokio-fs v0.1.7
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.3
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded miow v0.2.2
[INFO] [stderr]   Downloaded tokio-io v0.1.13
[INFO] [stderr]   Downloaded want v0.2.0
[INFO] [stderr]   Downloaded siphasher v0.2.3
[INFO] [stderr]   Downloaded mime_guess v1.8.8
[INFO] [stderr]   Downloaded safemem v0.3.3
[INFO] [stderr]   Downloaded dtoa v0.4.8
[INFO] [stderr]   Downloaded tokio-tcp v0.1.4
[INFO] [stderr]   Downloaded string v0.2.1
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.7
[INFO] [stderr]   Downloaded parking_lot_core v0.6.3
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.2
[INFO] [stderr]   Downloaded tokio-reactor v0.1.12
[INFO] [stderr]   Downloaded warp v0.1.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68116e726161664b06154f8273f55c2dd21b77aad6f6ac6352ee414a70fc3e42
[INFO] running `Command { std: "docker" "start" "-a" "68116e726161664b06154f8273f55c2dd21b77aad6f6ac6352ee414a70fc3e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68116e726161664b06154f8273f55c2dd21b77aad6f6ac6352ee414a70fc3e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68116e726161664b06154f8273f55c2dd21b77aad6f6ac6352ee414a70fc3e42", kill_on_drop: false }`
[INFO] [stdout] 68116e726161664b06154f8273f55c2dd21b77aad6f6ac6352ee414a70fc3e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccd2c518d42e6afa5dac97a1d8d35515c490041f33aa569a6dbc13b289ad81bf
[INFO] running `Command { std: "docker" "start" "-a" "ccd2c518d42e6afa5dac97a1d8d35515c490041f33aa569a6dbc13b289ad81bf", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling headers-core v0.1.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling headers v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling tungstenite v0.9.2
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling urlencoding v1.3.3
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling warp v0.1.23
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling grad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `warp::index`: renamed to warp::path::end
[INFO] [stdout]   --> src/main.rs:26:22
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let root = warp::index().map(|| {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:54:3
[INFO] [stdout]    |
[INFO] [stdout] 54 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |   let _ = write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |       let _ = write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.16.1, nom v4.2.3, warp v0.1.23
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ccd2c518d42e6afa5dac97a1d8d35515c490041f33aa569a6dbc13b289ad81bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd2c518d42e6afa5dac97a1d8d35515c490041f33aa569a6dbc13b289ad81bf", kill_on_drop: false }`
[INFO] [stdout] ccd2c518d42e6afa5dac97a1d8d35515c490041f33aa569a6dbc13b289ad81bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2226ea8365851a88e97a174594001b66d92b0f2b8f82a3d4df0a00b24a209ae6
[INFO] running `Command { std: "docker" "start" "-a" "2226ea8365851a88e97a174594001b66d92b0f2b8f82a3d4df0a00b24a209ae6", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling grad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `warp::index`: renamed to warp::path::end
[INFO] [stdout]   --> src/main.rs:26:22
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let root = warp::index().map(|| {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:54:3
[INFO] [stdout]    |
[INFO] [stdout] 54 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |   let _ = write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |       let _ = write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.16.1, nom v4.2.3, warp v0.1.23
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "2226ea8365851a88e97a174594001b66d92b0f2b8f82a3d4df0a00b24a209ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2226ea8365851a88e97a174594001b66d92b0f2b8f82a3d4df0a00b24a209ae6", kill_on_drop: false }`
[INFO] [stdout] 2226ea8365851a88e97a174594001b66d92b0f2b8f82a3d4df0a00b24a209ae6
