[INFO] fetching crate clac-lang 0.5.0-alpha...
[INFO] checking clac-lang-0.5.0-alpha against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate clac-lang 0.5.0-alpha into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate clac-lang 0.5.0-alpha
[INFO] finished tweaking crates.io crate clac-lang 0.5.0-alpha
[INFO] tweaked toml for crates.io crate clac-lang 0.5.0-alpha written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate clac-lang 0.5.0-alpha on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate clac-lang 0.5.0-alpha 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `clac-lang` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-object v0.131.1
[INFO] [stderr]   Downloaded sc v0.2.7
[INFO] [stderr]   Downloaded cranelift-control v0.131.1
[INFO] [stderr]   Downloaded cranelift-module v0.131.1
[INFO] [stderr]   Downloaded rustyline v18.0.0
[INFO] [stderr]   Downloaded cranelift-srcgen v0.131.1
[INFO] [stderr]   Downloaded cranelift-bitset v0.131.1
[INFO] [stderr]   Downloaded cranelift v0.131.1
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.131.1
[INFO] [stderr]   Downloaded wasmtime-internal-jit-icache-coherence v44.0.1
[INFO] [stderr]   Downloaded cranelift-entity v0.131.1
[INFO] [stderr]   Downloaded cranelift-native v0.131.1
[INFO] [stderr]   Downloaded cranelift-assembler-x64 v0.131.1
[INFO] [stderr]   Downloaded cranelift-jit v0.131.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.131.1
[INFO] [stderr]   Downloaded cranelift-assembler-x64-meta v0.131.1
[INFO] [stderr]   Downloaded wasmtime-internal-core v44.0.1
[INFO] [stderr]   Downloaded cranelift-frontend v0.131.1
[INFO] [stderr]   Downloaded cranelift-isle v0.131.1
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.131.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.131.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d
[INFO] running `Command { std: "docker" "start" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `clac-lang` (manifest) generated 1 warning
[INFO] [stderr]    Compiling cranelift-srcgen v0.131.1
[INFO] [stderr]    Compiling wasmtime-internal-core v44.0.1
[INFO] [stderr]     Checking hashbrown v0.17.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling cranelift-isle v0.131.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.131.1
[INFO] [stderr]     Checking bumpalo v3.20.2
[INFO] [stderr]     Checking rustc-hash v2.1.2
[INFO] [stderr]     Checking cranelift-control v0.131.1
[INFO] [stderr]    Compiling nix v0.31.2
[INFO] [stderr]     Checking endian-type v0.2.0
[INFO] [stderr]     Checking region v3.0.2
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking unicode-segmentation v1.13.2
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking memmap2 v0.9.10
[INFO] [stderr]     Checking sc v0.2.7
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.131.1
[INFO] [stderr]     Checking radix_trie v0.3.0
[INFO] [stderr]     Checking cranelift-bitset v0.131.1
[INFO] [stderr]     Checking wasmtime-internal-jit-icache-coherence v44.0.1
[INFO] [stderr]     Checking cranelift-entity v0.131.1
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking regalloc2 v0.15.1
[INFO] [stderr]     Checking cranelift-bforest v0.131.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.131.1
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.131.1
[INFO] [stderr]     Checking gimli v0.33.0
[INFO] [stderr]     Checking object v0.39.1
[INFO] [stderr]     Checking petgraph v0.8.3
[INFO] [stderr]     Checking rustyline v18.0.0
[INFO] [stderr]    Compiling cranelift-codegen v0.131.1
[INFO] [stderr]     Checking cranelift-module v0.131.1
[INFO] [stderr]     Checking cranelift-native v0.131.1
[INFO] [stderr]     Checking cranelift-frontend v0.131.1
[INFO] [stderr]     Checking cranelift-jit v0.131.1
[INFO] [stderr]     Checking cranelift-object v0.131.1
[INFO] [stderr]     Checking cranelift v0.131.1
[INFO] [stderr]     Checking clac-lang v0.5.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut optimize_push = |vals: &[Instr]| match vals {
[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: unused variable: `optimize_push`
[INFO] [stdout]    --> src/lib.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut optimize_push = |vals: &[Instr]| match vals {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_optimize_push`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `exec_function` is never used
[INFO] [stdout]    --> src/lib.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl ClacState {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn exec_function<'cs>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CallStack` is never used
[INFO] [stdout]    --> src/types.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub(crate) type CallStack<'a> = Vec<&'a [Instr]>;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut optimize_push = |vals: &[Instr]| match vals {
[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: unused variable: `optimize_push`
[INFO] [stdout]    --> src/lib.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut optimize_push = |vals: &[Instr]| match vals {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_optimize_push`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `exec_function` is never used
[INFO] [stdout]    --> src/lib.rs:226:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl ClacState {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 226 |     fn exec_function<'cs>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CallStack` is never used
[INFO] [stdout]    --> src/types.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub(crate) type CallStack<'a> = Vec<&'a [Instr]>;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `petgraph`
[INFO] [stderr]   --> Cargo.toml:30:15
[INFO] [stderr]    |
[INFO] [stderr] 30 | [dependencies.petgraph]
[INFO] [stderr]    |               ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `petgraph`
[INFO] [stderr] warning: `clac-lang` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.31.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d", kill_on_drop: false }`
[INFO] [stdout] 547c3397d89d035fff82070c9f059e591d5e0b13d61bb1a42b155ad8a883817d
