[INFO] cloning repository https://github.com/juice-lang/juice-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juice-lang/juice-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuice-lang%2Fjuice-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuice-lang%2Fjuice-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28660d6ad44bcb009b2f61c03dfe345f26ecdd5a
[INFO] checking juice-lang/juice-rs against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuice-lang%2Fjuice-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/juice-lang/juice-rs
[INFO] finished tweaking git repo https://github.com/juice-lang/juice-rs
[INFO] tweaked toml for git repo https://github.com/juice-lang/juice-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/juice-lang/juice-rs 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] crate git repo https://github.com/juice-lang/juice-rs 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] c47b1ef0d022d2dd766359da6e7b9d988bbbe2064034771b71986b314edef07a
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[INFO] running `Command { std: "docker" "inspect" "c47b1ef0d022d2dd766359da6e7b9d988bbbe2064034771b71986b314edef07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47b1ef0d022d2dd766359da6e7b9d988bbbe2064034771b71986b314edef07a", kill_on_drop: false }`
[INFO] [stdout] c47b1ef0d022d2dd766359da6e7b9d988bbbe2064034771b71986b314edef07a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5bcad1b97286d696ab3320410b6511053f6a52fa0b405746b87de6f7d319d40b
[INFO] running `Command { std: "docker" "start" "-a" "5bcad1b97286d696ab3320410b6511053f6a52fa0b405746b87de6f7d319d40b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling quote v1.0.44
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[INFO] [stderr]    Compiling serde v1.0.228
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[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking ariadne v0.6.0
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[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]    Compiling derive_more v0.99.20
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[INFO] [stdout] warning: feature `impl_trait_in_assoc_type` is declared but not used
[INFO] [stdout]  --> core/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_assoc_type, iter_advance_by)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `impl_trait_in_assoc_type` is declared but not used
[INFO] [stdout]  --> core/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_assoc_type, iter_advance_by)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking juice-frontend v0.1.0 (/opt/rustwide/workdir/frontend)
[INFO] [stdout] warning: the feature `assert_matches` has been stable since 1.96.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> frontend/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     assert_matches,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `assert_matches` has been stable since 1.96.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> frontend/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     assert_matches,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_stmt` is never used
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'src, M: 'src + SourceManager> StmtKind<'src, M> {
[INFO] [stdout]    | ----------------------------------------------------- method in this implementation
[INFO] [stdout] 14 |     pub fn into_stmt(self, range: SourceRange<'src, M>) -> Stmt<'src, M> {
[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 `source_range` is never read
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Stmt<'src, M: 'src + SourceManager> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 30 |     pub kind: StmtKind<'src, M>,
[INFO] [stdout] 31 |     pub source_range: SourceRange<'src, M>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` 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: associated function `new` is never used
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'src, M: 'src + SourceManager> Stmt<'src, M> {
[INFO] [stdout]    | ------------------------------------------------- associated function in this implementation
[INFO] [stdout] 35 |     pub fn new(kind: StmtKind<'src, M>, source_range: SourceRange<'src, M>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_stmt` is never used
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'src, M: 'src + SourceManager> StmtKind<'src, M> {
[INFO] [stdout]    | ----------------------------------------------------- method in this implementation
[INFO] [stdout] 14 |     pub fn into_stmt(self, range: SourceRange<'src, M>) -> Stmt<'src, M> {
[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 `source_range` is never read
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Stmt<'src, M: 'src + SourceManager> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 30 |     pub kind: StmtKind<'src, M>,
[INFO] [stdout] 31 |     pub source_range: SourceRange<'src, M>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` 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: associated function `new` is never used
[INFO] [stdout]   --> frontend/src/ast/stmt.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<'src, M: 'src + SourceManager> Stmt<'src, M> {
[INFO] [stdout]    | ------------------------------------------------- associated function in this implementation
[INFO] [stdout] 35 |     pub fn new(kind: StmtKind<'src, M>, source_range: SourceRange<'src, M>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `macro_metavar_expr` is declared but not used
[INFO] [stdout]  --> frontend/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     macro_metavar_expr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking juice-driver v0.1.0 (/opt/rustwide/workdir/driver)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "5bcad1b97286d696ab3320410b6511053f6a52fa0b405746b87de6f7d319d40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bcad1b97286d696ab3320410b6511053f6a52fa0b405746b87de6f7d319d40b", kill_on_drop: false }`
[INFO] [stdout] 5bcad1b97286d696ab3320410b6511053f6a52fa0b405746b87de6f7d319d40b