[INFO] fetching crate kobold_macros 0.9.0...
[INFO] checking kobold_macros-0.9.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate kobold_macros 0.9.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate kobold_macros 0.9.0
[INFO] finished tweaking crates.io crate kobold_macros 0.9.0
[INFO] tweaked toml for crates.io crate kobold_macros 0.9.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kobold_macros 0.9.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3e72906ac283cc5291096e3c842893f18a6f6d5af463fdab7c8d1e4976943586
[INFO] running `Command { std: "docker" "start" "-a" "3e72906ac283cc5291096e3c842893f18a6f6d5af463fdab7c8d1e4976943586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e72906ac283cc5291096e3c842893f18a6f6d5af463fdab7c8d1e4976943586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e72906ac283cc5291096e3c842893f18a6f6d5af463fdab7c8d1e4976943586", kill_on_drop: false }`
[INFO] [stdout] 3e72906ac283cc5291096e3c842893f18a6f6d5af463fdab7c8d1e4976943586
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fa03a424cc3c42cff6909df8a2ea405ece33bc955527a243aff8999d38102a6f
[INFO] running `Command { std: "docker" "start" "-a" "fa03a424cc3c42cff6909df8a2ea405ece33bc955527a243aff8999d38102a6f", kill_on_drop: false }`
[INFO] [stderr]     Checking beef v0.5.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking kobold_macros v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `JsModule`
[INFO] [stdout]   --> src/gen.rs:23:55
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use transient::{JsArgument, JsFnName, JsFunction, JsModule, JsString};
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JsModule`
[INFO] [stdout]   --> src/gen.rs:23:55
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use transient::{JsArgument, JsFnName, JsFunction, JsModule, JsString};
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Return` is never constructed
[INFO] [stdout]    --> src/branching/ast.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Return {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Branch` is never constructed
[INFO] [stdout]    --> src/branching/ast.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Branch {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `span` are never read
[INFO] [stdout]   --> src/dom.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Component {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 45 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 46 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Component` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/dom.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct HtmlElement {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 55 |     pub name: ElementTag,
[INFO] [stdout] 56 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HtmlElement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/dom/expression.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Expression {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 14 |     pub stream: TokenStream,
[INFO] [stdout] 15 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JsAttrConstructor` is never constructed
[INFO] [stdout]    --> src/gen/transient.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub struct JsAttrConstructor(pub JsFnName);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `map_ident` is never used
[INFO] [stdout]    --> src/parse.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub trait TokenTreeExt {
[INFO] [stdout]     |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn map_ident<F, R>(&self, f: F) -> Option<R>
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_fmt` is never used
[INFO] [stdout]    --> src/tokenize.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | pub trait TokenStreamExt {
[INFO] [stdout]     |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn write_fmt(&mut self, args: Arguments);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/itertools.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn join(self, sep: &str) -> Join<Self> {
[INFO] [stdout]    |                        ^^^^     ---------- the lifetime gets resolved as `'_`
[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 remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn join(self, sep: &str) -> Join<'_, Self> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Return` is never constructed
[INFO] [stdout]    --> src/branching/ast.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Return {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Branch` is never constructed
[INFO] [stdout]    --> src/branching/ast.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Branch {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `span` are never read
[INFO] [stdout]   --> src/dom.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Component {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 45 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 46 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Component` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/dom.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct HtmlElement {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 55 |     pub name: ElementTag,
[INFO] [stdout] 56 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HtmlElement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/dom/expression.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Expression {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 14 |     pub stream: TokenStream,
[INFO] [stdout] 15 |     pub span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JsAttrConstructor` is never constructed
[INFO] [stdout]    --> src/gen/transient.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub struct JsAttrConstructor(pub JsFnName);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `map_ident` is never used
[INFO] [stdout]    --> src/parse.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub trait TokenTreeExt {
[INFO] [stdout]     |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn map_ident<F, R>(&self, f: F) -> Option<R>
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_fmt` is never used
[INFO] [stdout]    --> src/tokenize.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | pub trait TokenStreamExt {
[INFO] [stdout]     |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn write_fmt(&mut self, args: Arguments);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/itertools.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn join(self, sep: &str) -> Join<Self> {
[INFO] [stdout]    |                        ^^^^     ---------- the lifetime gets resolved as `'_`
[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 remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn join(self, sep: &str) -> Join<'_, Self> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "fa03a424cc3c42cff6909df8a2ea405ece33bc955527a243aff8999d38102a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa03a424cc3c42cff6909df8a2ea405ece33bc955527a243aff8999d38102a6f", kill_on_drop: false }`
[INFO] [stdout] fa03a424cc3c42cff6909df8a2ea405ece33bc955527a243aff8999d38102a6f