[INFO] cloning repository https://github.com/raphlinus/ghilbert
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raphlinus/ghilbert" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphlinus%2Fghilbert", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphlinus%2Fghilbert'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52428c6e7797c288407a36238c822bf7f56639f3
[INFO] building raphlinus/ghilbert against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphlinus%2Fghilbert" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raphlinus/ghilbert
[INFO] finished tweaking git repo https://github.com/raphlinus/ghilbert
[INFO] tweaked toml for git repo https://github.com/raphlinus/ghilbert written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raphlinus/ghilbert on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raphlinus/ghilbert 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.11
[INFO] [stderr]   Downloaded itoa v0.3.3
[INFO] [stderr]   Downloaded serde_json v1.0.2
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded union-find v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c17f65291a74002c8a211450292f0d6c9237ad6e1cacd8ee162b7cc58626050a
[INFO] running `Command { std: "docker" "start" "-a" "c17f65291a74002c8a211450292f0d6c9237ad6e1cacd8ee162b7cc58626050a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c17f65291a74002c8a211450292f0d6c9237ad6e1cacd8ee162b7cc58626050a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c17f65291a74002c8a211450292f0d6c9237ad6e1cacd8ee162b7cc58626050a", kill_on_drop: false }`
[INFO] [stdout] c17f65291a74002c8a211450292f0d6c9237ad6e1cacd8ee162b7cc58626050a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e88e37a4d5ce0cb9f06a407058559ee1a16fdcaf54474aa72ae0b80202006dd
[INFO] running `Command { std: "docker" "start" "-a" "6e88e37a4d5ce0cb9f06a407058559ee1a16fdcaf54474aa72ae0b80202006dd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling itoa v0.3.3
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling serde v1.0.11
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling union-find v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling ghilbert v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unify.rs:471:9
[INFO] [stdout]     |
[INFO] [stdout] 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 472 |         let mut free_set = BTreeMap::new();
[INFO] [stdout]     |         ----------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prooflistener.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn end_proof(&mut self, inspector: &mut Inspector, parser: &Parser);
[INFO] [stdout]    |                                             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn end_proof(&mut self, inspector: &mut dyn Inspector, parser: &Parser);
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/htmlout.rs:342:45
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn end_proof(&mut self, inspector: &mut Inspector, parser: &Parser) {
[INFO] [stdout]     |                                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn end_proof(&mut self, inspector: &mut dyn Inspector, parser: &Parser) {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prooflistener.rs:61:46
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn end_proof(&mut self, _inspector: &mut Inspector, _parser: &Parser) {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn end_proof(&mut self, _inspector: &mut dyn Inspector, _parser: &Parser) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/htmlout.rs:128:39
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
[INFO] [stdout]     |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/htmlout.rs:371:30
[INFO] [stdout]     |
[INFO] [stdout] 371 |     fn start_line(&mut self, line: &ParseNode) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut node = self.root.traverse(s.chars());
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cur_info` is never used
[INFO] [stdout]    --> src/htmlout.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl<'a> HtmlOut<'a> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 307 |     fn cur_info(&self) -> &ThmInfo {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/parser.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ParseNode {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 23 |     start: usize,
[INFO] [stdout] 24 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseNode` 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: method `get_end` is never used
[INFO] [stdout]   --> src/parser.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl ParseNode {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn get_end(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/session.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |     ParseError(parser::Error),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 -     ParseError(parser::Error),
[INFO] [stdout] 44 +     ParseError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/session.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |     UnifyError(unify::Error),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     UnifyError(unify::Error),
[INFO] [stdout] 45 +     UnifyError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `session` is never read
[INFO] [stdout]    --> src/session.rs:566:5
[INFO] [stdout]     |
[INFO] [stdout] 560 | pub struct MyInspector<'a: 'b, 'b> {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 566 |     session: &'b Session<'a>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:76:22
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(text: &str) -> Lexer {
[INFO] [stdout]    |                      ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(text: &str) -> Lexer<'_> {
[INFO] [stdout]    |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/session.rs:151:23
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn get_parser(&self) -> &Parser {
[INFO] [stdout]     |                       ^^^^^     ^^^^^^^
[INFO] [stdout]     |                       |         ||
[INFO] [stdout]     |                       |         |the same lifetime is hidden here
[INFO] [stdout]     |                       |         the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn get_parser(&self) -> &Parser<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unify.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(defs: &BTreeMap<Token, Definition>, backslash: Const) -> Graph {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^                       ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(defs: &BTreeMap<Token, Definition>, backslash: Const) -> Graph<'_> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "6e88e37a4d5ce0cb9f06a407058559ee1a16fdcaf54474aa72ae0b80202006dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e88e37a4d5ce0cb9f06a407058559ee1a16fdcaf54474aa72ae0b80202006dd", kill_on_drop: false }`
[INFO] [stdout] 6e88e37a4d5ce0cb9f06a407058559ee1a16fdcaf54474aa72ae0b80202006dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecfd98dc430dab3977a453053f737c4671e73bd627039ab86c24bbe59709f69a
[INFO] running `Command { std: "docker" "start" "-a" "ecfd98dc430dab3977a453053f737c4671e73bd627039ab86c24bbe59709f69a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling ghilbert v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/unify.rs:471:9
[INFO] [stdout]     |
[INFO] [stdout] 471 |         /// Maps node of bound var to set of term var nodes it can appear free in.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 472 |         let mut free_set = BTreeMap::new();
[INFO] [stdout]     |         ----------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prooflistener.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn end_proof(&mut self, inspector: &mut Inspector, parser: &Parser);
[INFO] [stdout]    |                                             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn end_proof(&mut self, inspector: &mut dyn Inspector, parser: &Parser);
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/htmlout.rs:342:45
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn end_proof(&mut self, inspector: &mut Inspector, parser: &Parser) {
[INFO] [stdout]     |                                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn end_proof(&mut self, inspector: &mut dyn Inspector, parser: &Parser) {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/prooflistener.rs:61:46
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn end_proof(&mut self, _inspector: &mut Inspector, _parser: &Parser) {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn end_proof(&mut self, _inspector: &mut dyn Inspector, _parser: &Parser) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/htmlout.rs:128:39
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn write<W: Write>(&mut self, writer: &mut W, parser: &Parser) -> io::Result<()> {
[INFO] [stdout]     |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/htmlout.rs:371:30
[INFO] [stdout]     |
[INFO] [stdout] 371 |     fn start_line(&mut self, line: &ParseNode) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lexer.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut node = self.root.traverse(s.chars());
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cur_info` is never used
[INFO] [stdout]    --> src/htmlout.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl<'a> HtmlOut<'a> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 307 |     fn cur_info(&self) -> &ThmInfo {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `end` is never read
[INFO] [stdout]   --> src/parser.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct ParseNode {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 23 |     start: usize,
[INFO] [stdout] 24 |     end: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseNode` 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: method `get_end` is never used
[INFO] [stdout]   --> src/parser.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl ParseNode {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn get_end(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/session.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |     ParseError(parser::Error),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 -     ParseError(parser::Error),
[INFO] [stdout] 44 +     ParseError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/session.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |     UnifyError(unify::Error),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     UnifyError(unify::Error),
[INFO] [stdout] 45 +     UnifyError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `session` is never read
[INFO] [stdout]    --> src/session.rs:566:5
[INFO] [stdout]     |
[INFO] [stdout] 560 | pub struct MyInspector<'a: 'b, 'b> {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 566 |     session: &'b Session<'a>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:76:22
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(text: &str) -> Lexer {
[INFO] [stdout]    |                      ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn new(text: &str) -> Lexer<'_> {
[INFO] [stdout]    |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/session.rs:151:23
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn get_parser(&self) -> &Parser {
[INFO] [stdout]     |                       ^^^^^     ^^^^^^^
[INFO] [stdout]     |                       |         ||
[INFO] [stdout]     |                       |         |the same lifetime is hidden here
[INFO] [stdout]     |                       |         the same lifetime is elided here
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn get_parser(&self) -> &Parser<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unify.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(defs: &BTreeMap<Token, Definition>, backslash: Const) -> Graph {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^                       ^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(defs: &BTreeMap<Token, Definition>, backslash: Const) -> Graph<'_> {
[INFO] [stdout]     |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "ecfd98dc430dab3977a453053f737c4671e73bd627039ab86c24bbe59709f69a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfd98dc430dab3977a453053f737c4671e73bd627039ab86c24bbe59709f69a", kill_on_drop: false }`
[INFO] [stdout] ecfd98dc430dab3977a453053f737c4671e73bd627039ab86c24bbe59709f69a
