[INFO] fetching crate html-types 0.4.0...
[INFO] checking html-types-0.4.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate html-types 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate html-types 0.4.0
[INFO] finished tweaking crates.io crate html-types 0.4.0
[INFO] tweaked toml for crates.io crate html-types 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate html-types 0.4.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate html-types 0.4.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d954bf6e627e5433aaa1b429f5f2d7e11d836ca7085c4c33fec40ae85f46fa01
[INFO] running `Command { std: "docker" "start" "-a" "d954bf6e627e5433aaa1b429f5f2d7e11d836ca7085c4c33fec40ae85f46fa01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d954bf6e627e5433aaa1b429f5f2d7e11d836ca7085c4c33fec40ae85f46fa01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d954bf6e627e5433aaa1b429f5f2d7e11d836ca7085c4c33fec40ae85f46fa01", kill_on_drop: false }`
[INFO] [stdout] d954bf6e627e5433aaa1b429f5f2d7e11d836ca7085c4c33fec40ae85f46fa01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6e932fa0c2d573b78c0188ff763347cb6262d4408a901f2295702c0490ea5d
[INFO] running `Command { std: "docker" "start" "-a" "ce6e932fa0c2d573b78c0188ff763347cb6262d4408a901f2295702c0490ea5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]     Checking html-types v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/semantic/class.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct InvalidClass(String);
[INFO] [stdout]   |            ------------ ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `InvalidClass` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/tag.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub const unsafe fn create_unsafe(tag: &'static str) -> Tag {
[INFO] [stdout]    |                                             ^^^^^^^         --- the lifetime gets resolved as `'static`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'static`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub const unsafe fn create_unsafe(tag: &'static str) -> Tag<'static> {
[INFO] [stdout]    |                                                                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/semantic/class.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct InvalidClass(String);
[INFO] [stdout]   |            ------------ ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `InvalidClass` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/tag.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub const unsafe fn create_unsafe(tag: &'static str) -> Tag {
[INFO] [stdout]    |                                             ^^^^^^^         --- the lifetime gets resolved as `'static`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'static`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub const unsafe fn create_unsafe(tag: &'static str) -> Tag<'static> {
[INFO] [stdout]    |                                                                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.63s
[INFO] running `Command { std: "docker" "inspect" "ce6e932fa0c2d573b78c0188ff763347cb6262d4408a901f2295702c0490ea5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6e932fa0c2d573b78c0188ff763347cb6262d4408a901f2295702c0490ea5d", kill_on_drop: false }`
[INFO] [stdout] ce6e932fa0c2d573b78c0188ff763347cb6262d4408a901f2295702c0490ea5d