[INFO] cloning repository https://github.com/hukumka/interactives
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hukumka/interactives" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8fd54ec762fcf4aece15bc0be52234f8fbbf392
[INFO] checking hukumka/interactives against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hukumka/interactives
[INFO] finished tweaking git repo https://github.com/hukumka/interactives
[INFO] tweaked toml for git repo https://github.com/hukumka/interactives written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hukumka/interactives on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.6.1)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.10)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding handlebars v1.1.0 (available: v6.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c260fca16174cf7f6b73e2b02b357d66e2b732c8e23fdb5106ff87cd62450cf
[INFO] running `Command { std: "docker" "start" "-a" "1c260fca16174cf7f6b73e2b02b357d66e2b732c8e23fdb5106ff87cd62450cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c260fca16174cf7f6b73e2b02b357d66e2b732c8e23fdb5106ff87cd62450cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c260fca16174cf7f6b73e2b02b357d66e2b732c8e23fdb5106ff87cd62450cf", kill_on_drop: false }`
[INFO] [stdout] 1c260fca16174cf7f6b73e2b02b357d66e2b732c8e23fdb5106ff87cd62450cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af572c872f8d10dc81c8122cfe3871380c51c0c414604fdc700f8768a4c968c8
[INFO] running `Command { std: "docker" "start" "-a" "af572c872f8d10dc81c8122cfe3871380c51c0c414604fdc700f8768a4c968c8", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking pest v2.8.6
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking hamt-rs v0.3.0
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling pest_generator v2.8.6
[INFO] [stderr]    Compiling pest_derive v2.8.6
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking interactive_c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/syntax_tree.rs:854:17
[INFO] [stdout]      |
[INFO] [stdout]  854 |             let mut $walker_name = _tree.walker();
[INFO] [stdout]      |                 ----^^^^^^^^^^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 1398 |         new_walker!{let mut walker = "int x=0; int x(int a){return a + 4; for(int i=0; i<a; ++i) a += 3 * 4;}";}
[INFO] [stdout]      |         -------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]      = note: this warning originates in the macro `new_walker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/compiler.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | struct VariableHandle<'a> {
[INFO] [stdout]     |        -------------- field in this struct
[INFO] [stdout] 240 |     pub type_: Type,
[INFO] [stdout] 241 |     pub name: &'a TokenData<'a>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariableHandle` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PageElementFunc` is never used
[INFO] [stdout]   --> src/page.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 | trait PageElementFunc<T: Write> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/bracket_tree.rs:66:59
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn new(data: &'a [TokenData<'a>]) -> Result<Self, Error> {
[INFO] [stdout]    |                       --            --                    ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |             |
[INFO] [stdout]    |                       |             the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn new(data: &'a [TokenData<'a>]) -> Result<Self, Error<'a>> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `log_syntax` is declared but not used
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(log_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/compiler.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | struct VariableHandle<'a> {
[INFO] [stdout]     |        -------------- field in this struct
[INFO] [stdout] 240 |     pub type_: Type,
[INFO] [stdout] 241 |     pub name: &'a TokenData<'a>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VariableHandle` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PageElementFunc` is never used
[INFO] [stdout]   --> src/page.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 | trait PageElementFunc<T: Write> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/bracket_tree.rs:66:59
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn new(data: &'a [TokenData<'a>]) -> Result<Self, Error> {
[INFO] [stdout]    |                       --            --                    ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |             |
[INFO] [stdout]    |                       |             the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn new(data: &'a [TokenData<'a>]) -> Result<Self, Error<'a>> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `log_syntax` is declared but not used
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(log_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.00s
[INFO] running `Command { std: "docker" "inspect" "af572c872f8d10dc81c8122cfe3871380c51c0c414604fdc700f8768a4c968c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af572c872f8d10dc81c8122cfe3871380c51c0c414604fdc700f8768a4c968c8", kill_on_drop: false }`
[INFO] [stdout] af572c872f8d10dc81c8122cfe3871380c51c0c414604fdc700f8768a4c968c8
