[INFO] cloning repository https://github.com/shouya/rss-funnel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shouya/rss-funnel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshouya%2Frss-funnel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshouya%2Frss-funnel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 877b6c962907d72c7af96a7a91abecac8e9e8e24
[INFO] checking shouya/rss-funnel against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshouya%2Frss-funnel" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shouya/rss-funnel on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shouya/rss-funnel
[INFO] finished tweaking git repo https://github.com/shouya/rss-funnel
[INFO] tweaked toml for git repo https://github.com/shouya/rss-funnel written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shouya/rss-funnel 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/shouya/ego-tree.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/shouya/schemars`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scraper v0.19.0
[INFO] [stderr]   Downloaded async-compression v0.4.6
[INFO] [stderr]   Downloaded relative-path v1.9.2
[INFO] [stderr]   Downloaded rquickjs-core v0.5.1
[INFO] [stderr]   Downloaded duration-str v0.7.1
[INFO] [stderr]   Downloaded rquickjs-macro v0.5.1
[INFO] [stderr]   Downloaded rquickjs v0.5.1
[INFO] [stderr]   Downloaded diligent-date-parser v0.1.4
[INFO] [stderr]   Downloaded atom_syndication v0.12.2
[INFO] [stderr]   Downloaded never v0.1.0
[INFO] [stderr]   Downloaded htmlescape v0.3.1
[INFO] [stderr]   Downloaded rquickjs-sys v0.5.1
[INFO] [stderr]   Downloaded rss v2.0.7
[INFO] [stderr]   Downloaded readability v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80811fce6009c100c44f790d55639599fe3dbd46b5cbb951e260f61a680d80df
[INFO] running `Command { std: "docker" "start" "-a" "80811fce6009c100c44f790d55639599fe3dbd46b5cbb951e260f61a680d80df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80811fce6009c100c44f790d55639599fe3dbd46b5cbb951e260f61a680d80df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80811fce6009c100c44f790d55639599fe3dbd46b5cbb951e260f61a680d80df", kill_on_drop: false }`
[INFO] [stdout] 80811fce6009c100c44f790d55639599fe3dbd46b5cbb951e260f61a680d80df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efec8af5145c45f256f7b09cd8182b0943415550dc41cd9fbff2ef58d1bd537f
[INFO] running `Command { std: "docker" "start" "-a" "efec8af5145c45f256f7b09cd8182b0943415550dc41cd9fbff2ef58d1bd537f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
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[INFO] [stderr]    Compiling schemars v0.8.16 (https://github.com/shouya/schemars#5af7b5ca)
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[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]   --> src/filter/convert.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 44 |   use super::*;
[INFO] [stdout]    |       -------- the item `Result` is already imported here
[INFO] [stdout] 45 |   use crate::test_utils::fetch_endpoint;
[INFO] [stdout] 46 |   use crate::util::Result;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]  --> src/feed/extension.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TagRef<'a> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 4 |   pub name: &'a String,
[INFO] [stdout] 5 |   pub attrs: &'a BTreeMap<String, String>,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]   --> src/feed/extension.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TagRefMut<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |   pub name: &'a mut String,
[INFO] [stdout] 11 |   pub attrs: &'a mut BTreeMap<String, String>,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]    --> src/js.rs:316:7
[INFO] [stdout]     |
[INFO] [stdout] 311 | pub struct Exception {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 316 |   pub stack: Option<String>,
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Exception` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]  --> src/feed/extension.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TagRef<'a> {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 4 |   pub name: &'a String,
[INFO] [stdout] 5 |   pub attrs: &'a BTreeMap<String, String>,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `attrs` is never read
[INFO] [stdout]   --> src/feed/extension.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TagRefMut<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |   pub name: &'a mut String,
[INFO] [stdout] 11 |   pub attrs: &'a mut BTreeMap<String, String>,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.09s
[INFO] running `Command { std: "docker" "inspect" "efec8af5145c45f256f7b09cd8182b0943415550dc41cd9fbff2ef58d1bd537f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efec8af5145c45f256f7b09cd8182b0943415550dc41cd9fbff2ef58d1bd537f", kill_on_drop: false }`
[INFO] [stdout] efec8af5145c45f256f7b09cd8182b0943415550dc41cd9fbff2ef58d1bd537f