[INFO] cloning repository https://github.com/ivanceras/spongedown
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivanceras/spongedown" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanceras%2Fspongedown", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanceras%2Fspongedown'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 297c6667a8df2ddfc998c0a47bad658e149efd7f
[INFO] checking ivanceras/spongedown against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanceras%2Fspongedown" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivanceras/spongedown on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivanceras/spongedown
[INFO] finished tweaking git repo https://github.com/ivanceras/spongedown
[INFO] tweaked toml for git repo https://github.com/ivanceras/spongedown written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 178 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding comrak v0.8.2 (latest: v0.22.0)
[INFO] [stderr]       Adding fancy-regex v0.7.1 (latest: v0.13.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding html5ever v0.25.2 (latest: v0.27.0)
[INFO] [stderr]       Adding idna v0.1.5 (latest: v0.5.0)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding markup5ever v0.10.1 (latest: v0.12.0)
[INFO] [stderr]       Adding markup5ever_rcdom v0.1.0 (latest: v0.3.0)
[INFO] [stderr]       Adding mt-dom v0.10.0 (latest: v0.59.2)
[INFO] [stderr]       Adding nalgebra v0.28.0 (latest: v0.32.5)
[INFO] [stderr]       Adding nalgebra-macros v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding parry2d v0.6.0 (latest: v0.13.7)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding phf v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_codegen v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_generator v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_generator v0.10.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_shared v0.8.0 (latest: v0.11.2)
[INFO] [stderr]       Adding phf_shared v0.10.0 (latest: v0.11.2)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_pcg v0.2.1 (latest: v0.3.1)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[INFO] [stderr]       Adding sauron v0.40.0 (latest: v0.60.7)
[INFO] [stderr]       Adding sauron-core v0.40.0 (latest: v0.60.7)
[INFO] [stderr]       Adding sauron-node-macro v0.40.0 (latest: v0.54.1)
[INFO] [stderr]       Adding simba v0.5.1 (latest: v0.8.1)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] [stderr]       Adding svgbob v0.5.5 (latest: v0.7.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.57)
[INFO] [stderr]       Adding syn-rsx v0.8.1 (latest: v0.9.0)
[INFO] [stderr]       Adding syntect v4.6.0 (latest: v5.2.0)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding typed-arena v1.7.0 (latest: v2.0.2)
[INFO] [stderr]       Adding url v1.7.2 (latest: v2.5.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding xml5ever v0.16.2 (latest: v0.18.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded url_path v0.1.3
[INFO] [stderr]   Downloaded sauron-parse v0.40.0
[INFO] [stderr]   Downloaded line-wrap v0.2.0
[INFO] [stderr]   Downloaded sauron-node-macro v0.40.0
[INFO] [stderr]   Downloaded syn-rsx v0.8.1
[INFO] [stderr]   Downloaded svgbob v0.5.5
[INFO] [stderr]   Downloaded comrak v0.8.2
[INFO] [stderr]   Downloaded sauron-core v0.40.0
[INFO] [stderr]   Downloaded parry2d v0.6.0
[INFO] [stderr]   Downloaded pom v3.4.0
[INFO] [stderr]   Downloaded nalgebra v0.28.0
[INFO] [stderr]   Downloaded sauron v0.40.0
[INFO] [stderr]   Downloaded syntect v4.6.0
[INFO] [stderr]   Downloaded plist v1.6.1
[INFO] [stderr]   Downloaded file v1.1.2
[INFO] [stderr]   Downloaded mt-dom v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c01e739f856ec705cae48d42a3b915498c17f85a810f010859a0415e869fca05
[INFO] running `Command { std: "docker" "start" "-a" "c01e739f856ec705cae48d42a3b915498c17f85a810f010859a0415e869fca05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c01e739f856ec705cae48d42a3b915498c17f85a810f010859a0415e869fca05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01e739f856ec705cae48d42a3b915498c17f85a810f010859a0415e869fca05", kill_on_drop: false }`
[INFO] [stdout] c01e739f856ec705cae48d42a3b915498c17f85a810f010859a0415e869fca05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd6d82f26a3c12966dd9db46e34346d00ea6cc09a7649e922acb2b2acc71d037
[INFO] running `Command { std: "docker" "start" "-a" "dd6d82f26a3c12966dd9db46e34346d00ea6cc09a7649e922acb2b2acc71d037", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling xml5ever v0.16.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling mt-dom v0.10.0
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]    Compiling html5ever v0.25.2
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling js-sys v0.3.69
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]    Compiling syn-rsx v0.8.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking quick-xml v0.31.0
[INFO] [stderr]     Checking line-wrap v0.2.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking web-sys v0.3.69
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking twoway v0.2.2
[INFO] [stderr]     Checking plist v1.6.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking pom v3.4.0
[INFO] [stderr]     Checking fancy-regex v0.7.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking nalgebra v0.28.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking comrak v0.8.2
[INFO] [stderr]     Checking file v1.1.2
[INFO] [stderr]     Checking url_path v0.1.3
[INFO] [stderr]     Checking syntect v4.6.0
[INFO] [stderr]    Compiling sauron-core v0.40.0
[INFO] [stderr]    Compiling sauron-parse v0.40.0
[INFO] [stderr]    Compiling sauron-node-macro v0.40.0
[INFO] [stderr]     Checking sauron v0.40.0
[INFO] [stderr]     Checking parry2d v0.6.0
[INFO] [stderr]     Checking svgbob v0.5.5
[INFO] [stderr]     Checking spongedown v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/plugins.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     for header in rdr.headers() {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(for_loops_over_fallibles)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 65 |     while let Ok(header) = rdr.headers() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stdout]    |
[INFO] [stdout] 65 |     for header in rdr.headers()? {
[INFO] [stdout]    |                                +
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 65 |     if let Ok(header) = rdr.headers() {
[INFO] [stdout]    |     ~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/plugins.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     for header in rdr.headers() {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(for_loops_over_fallibles)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 65 |     while let Ok(header) = rdr.headers() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stdout]    |
[INFO] [stdout] 65 |     for header in rdr.headers()? {
[INFO] [stdout]    |                                +
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 65 |     if let Ok(header) = rdr.headers() {
[INFO] [stdout]    |     ~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spongedown` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `spongedown` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dd6d82f26a3c12966dd9db46e34346d00ea6cc09a7649e922acb2b2acc71d037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6d82f26a3c12966dd9db46e34346d00ea6cc09a7649e922acb2b2acc71d037", kill_on_drop: false }`
[INFO] [stdout] dd6d82f26a3c12966dd9db46e34346d00ea6cc09a7649e922acb2b2acc71d037