[INFO] cloning repository https://github.com/hch12907/rfcmei
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hch12907/rfcmei" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Frfcmei", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Frfcmei'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c2441af83bb62eb614c1b9f7d0d29933a5e052e
[INFO] checking hch12907/rfcmei against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhch12907%2Frfcmei" "/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/hch12907/rfcmei on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hch12907/rfcmei
[INFO] finished tweaking git repo https://github.com/hch12907/rfcmei
[INFO] tweaked toml for git repo https://github.com/hch12907/rfcmei written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hch12907/rfcmei 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jetscii v0.5.3
[INFO] [stderr]   Downloaded html5gum v0.5.7
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d90cc28a557b8d62ff4fa4f2a23ce57e44c729185f84b10871d4ddb8aba8f53
[INFO] running `Command { std: "docker" "start" "-a" "9d90cc28a557b8d62ff4fa4f2a23ce57e44c729185f84b10871d4ddb8aba8f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d90cc28a557b8d62ff4fa4f2a23ce57e44c729185f84b10871d4ddb8aba8f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d90cc28a557b8d62ff4fa4f2a23ce57e44c729185f84b10871d4ddb8aba8f53", kill_on_drop: false }`
[INFO] [stdout] 9d90cc28a557b8d62ff4fa4f2a23ce57e44c729185f84b10871d4ddb8aba8f53
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e97a0554c0637bf3f49526d8ed26c0255b42e464da7ae3aced4fa9d0c6b3425
[INFO] running `Command { std: "docker" "start" "-a" "4e97a0554c0637bf3f49526d8ed26c0255b42e464da7ae3aced4fa9d0c6b3425", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling jetscii v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking html5gum v0.5.7
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking argh_shared v0.1.12
[INFO] [stderr]    Compiling argh_derive v0.1.12
[INFO] [stderr]     Checking argh v0.1.12
[INFO] [stderr]     Checking rfcmei v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Table` is never constructed
[INFO] [stdout]   --> src/document/phase4.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum Element {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 53 |     Table {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `style` is never read
[INFO] [stdout]    --> src/document/phase5.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |     UnorderedList {
[INFO] [stdout]     |     ------------- field in this variant
[INFO] [stdout] 182 |         depth: u32,
[INFO] [stdout] 183 |         style: UnorderedListStyle,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `depth` is never read
[INFO] [stdout]    --> src/document/phase5.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     Table {
[INFO] [stdout]     |     ----- field in this variant
[INFO] [stdout] 187 |         depth: u32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Table` is never constructed
[INFO] [stdout]   --> src/document/phase4.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum Element {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 53 |     Table {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `style` is never read
[INFO] [stdout]    --> src/document/phase5.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |     UnorderedList {
[INFO] [stdout]     |     ------------- field in this variant
[INFO] [stdout] 182 |         depth: u32,
[INFO] [stdout] 183 |         style: UnorderedListStyle,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `depth` is never read
[INFO] [stdout]    --> src/document/phase5.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     Table {
[INFO] [stdout]     |     ----- field in this variant
[INFO] [stdout] 187 |         depth: u32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Element` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.40s
[INFO] running `Command { std: "docker" "inspect" "4e97a0554c0637bf3f49526d8ed26c0255b42e464da7ae3aced4fa9d0c6b3425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e97a0554c0637bf3f49526d8ed26c0255b42e464da7ae3aced4fa9d0c6b3425", kill_on_drop: false }`
[INFO] [stdout] 4e97a0554c0637bf3f49526d8ed26c0255b42e464da7ae3aced4fa9d0c6b3425