[INFO] cloning repository https://github.com/Ryan1729/rrr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryan1729/rrr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Frrr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Frrr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f4914cb2fc415ba8cb29b633daee6cd707f5054c
[INFO] checking Ryan1729/rrr against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Frrr" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ryan1729/rrr on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryan1729/rrr
[INFO] finished tweaking git repo https://github.com/Ryan1729/rrr
[INFO] tweaked toml for git repo https://github.com/Ryan1729/rrr written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryan1729/rrr 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atom_syndication v0.11.0
[INFO] [stderr]   Downloaded diligent-date-parser v0.1.3
[INFO] [stderr]   Downloaded atomicwrites v0.3.1
[INFO] [stderr]   Downloaded rss v2.0.1
[INFO] [stderr]   Downloaded gzip-header v0.3.0
[INFO] [stderr]   Downloaded rouille v3.5.0
[INFO] [stderr]   Downloaded tiny_http v0.8.2
[INFO] [stderr]   Downloaded meowhash v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ce51aaa1c861942f748f820ace2b514a763a64a7dd084b7f314587c6cb14c7
[INFO] running `Command { std: "docker" "start" "-a" "37ce51aaa1c861942f748f820ace2b514a763a64a7dd084b7f314587c6cb14c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ce51aaa1c861942f748f820ace2b514a763a64a7dd084b7f314587c6cb14c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ce51aaa1c861942f748f820ace2b514a763a64a7dd084b7f314587c6cb14c7", kill_on_drop: false }`
[INFO] [stdout] 37ce51aaa1c861942f748f820ace2b514a763a64a7dd084b7f314587c6cb14c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9020030912bbe15db3e249660317b72b042ffdb6e30ee3d95e1ad9fd268a3c81
[INFO] running `Command { std: "docker" "start" "-a" "9020030912bbe15db3e249660317b72b042ffdb6e30ee3d95e1ad9fd268a3c81", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]    Compiling meowhash v0.3.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking flate2 v1.0.23
[INFO] [stderr]     Checking atomicwrites v0.3.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking write_atomically v0.1.0 (/opt/rustwide/workdir/write_atomically)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking timestamp v0.1.0 (/opt/rustwide/workdir/timestamp)
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking diligent-date-parser v0.1.3
[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking gzip-header v0.3.0
[INFO] [stderr]     Checking render v0.1.0 (/opt/rustwide/workdir/render)
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking multipart v0.18.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking tiny_http v0.8.2
[INFO] [stderr]     Checking filetime v0.2.16
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking fetch v0.1.0 (/opt/rustwide/workdir/fetch)
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]     Checking derive_builder v0.10.2
[INFO] [stderr]     Checking atom_syndication v0.11.0
[INFO] [stderr]     Checking rss v2.0.1
[INFO] [stderr]     Checking rouille v3.5.0
[INFO] [stderr]     Checking syndicated v0.1.0 (/opt/rustwide/workdir/syndicated)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> syndicated/src/syndicated.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |     for content in post.content.as_ref() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     while let Some(content) = post.content.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 48 |     if let Some(content) = post.content.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> syndicated/src/syndicated.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |     for summary in post.summary.as_ref() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 51 |     while let Some(summary) = post.summary.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 51 |     if let Some(summary) = post.summary.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> syndicated/src/syndicated.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |     for content in post.content.as_ref() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     while let Some(content) = post.content.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 48 |     if let Some(content) = post.content.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> syndicated/src/syndicated.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |     for summary in post.summary.as_ref() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 51 |     while let Some(summary) = post.summary.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~       ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 51 |     if let Some(summary) = post.summary.as_ref() {
[INFO] [stdout]    |     ~~~~~~~~~~~~       ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking logic v0.1.0 (/opt/rustwide/workdir/logic)
[INFO] [stderr]     Checking rrr v0.1.0 (/opt/rustwide/workdir/rrr)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "9020030912bbe15db3e249660317b72b042ffdb6e30ee3d95e1ad9fd268a3c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9020030912bbe15db3e249660317b72b042ffdb6e30ee3d95e1ad9fd268a3c81", kill_on_drop: false }`
[INFO] [stdout] 9020030912bbe15db3e249660317b72b042ffdb6e30ee3d95e1ad9fd268a3c81