[INFO] cloning repository https://github.com/serbanrobu/tree-calculus [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/serbanrobu/tree-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserbanrobu%2Ftree-calculus", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserbanrobu%2Ftree-calculus'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3973dd390426ed0e08eade953804b4bca8913cd3 [INFO] checking serbanrobu/tree-calculus against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserbanrobu%2Ftree-calculus" "/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/serbanrobu/tree-calculus [INFO] finished tweaking git repo https://github.com/serbanrobu/tree-calculus [INFO] tweaked toml for git repo https://github.com/serbanrobu/tree-calculus written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/serbanrobu/tree-calculus on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/serbanrobu/tree-calculus 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dfe8456f40e32437aef33776cc2308649cb3e255d13073b36712b9d19c289f00 [INFO] running `Command { std: "docker" "start" "-a" "dfe8456f40e32437aef33776cc2308649cb3e255d13073b36712b9d19c289f00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dfe8456f40e32437aef33776cc2308649cb3e255d13073b36712b9d19c289f00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfe8456f40e32437aef33776cc2308649cb3e255d13073b36712b9d19c289f00", kill_on_drop: false }` [INFO] [stdout] dfe8456f40e32437aef33776cc2308649cb3e255d13073b36712b9d19c289f00 [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 550cd9d01581ec0fe7ae3eb03c035d83fc13b016f258f086d2b034ee78daac7c [INFO] running `Command { std: "docker" "start" "-a" "550cd9d01581ec0fe7ae3eb03c035d83fc13b016f258f086d2b034ee78daac7c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.17 [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Compiling regex-syntax v0.8.5 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling semver v1.0.25 [INFO] [stderr] Compiling rustversion v1.0.19 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Checking once_cell v1.20.3 [INFO] [stderr] Compiling smallvec v1.14.0 [INFO] [stderr] Compiling typenum v1.18.0 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling equivalent v1.0.2 [INFO] [stderr] Compiling object v0.36.7 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling home v0.5.11 [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling hashbrown v0.15.2 [INFO] [stderr] Compiling keccak v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling term v1.0.1 [INFO] [stderr] Compiling fixedbitset v0.5.7 [INFO] [stderr] Compiling phf_shared v0.11.3 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Checking allocator-api2 v0.2.21 [INFO] [stderr] Compiling log v0.4.26 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Compiling bit-vec v0.8.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking adler2 v2.0.0 [INFO] [stderr] Checking gimli v0.31.1 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Compiling indexmap v2.7.1 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking crossbeam-deque v0.8.6 [INFO] [stderr] Compiling bit-set v0.8.0 [INFO] [stderr] Compiling logos-codegen v0.15.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking miniz_oxide v0.8.5 [INFO] [stderr] Compiling itertools v0.14.0 [INFO] [stderr] Compiling ena v0.14.3 [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Compiling ascii-canvas v4.0.0 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Checking bitflags v2.8.0 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling owo-colors v4.1.0 [INFO] [stderr] Compiling beef v0.5.2 [INFO] [stderr] Checking linux-raw-sys v0.4.15 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling unicode-xid v0.2.6 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling string_cache v0.8.8 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling regex-automata v0.4.9 [INFO] [stderr] Checking rustc-demangle v0.1.24 [INFO] [stderr] Compiling petgraph v0.7.1 [INFO] [stderr] Compiling pico-args v0.5.0 [INFO] [stderr] Checking rayon-core v1.12.1 [INFO] [stderr] Checking tracing-core v0.1.33 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Checking unicode-linebreak v0.1.5 [INFO] [stderr] Checking unicode-width v0.1.14 [INFO] [stderr] Compiling serde v1.0.218 [INFO] [stderr] Compiling thiserror v2.0.11 [INFO] [stderr] Checking is_ci v1.2.0 [INFO] [stderr] Checking supports-color v3.0.2 [INFO] [stderr] Checking textwrap v0.16.1 [INFO] [stderr] Checking clap_builder v4.5.30 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking terminal_size v0.4.1 [INFO] [stderr] Checking hashlink v0.9.1 [INFO] [stderr] Checking dashmap v6.1.0 [INFO] [stderr] Checking crossbeam-queue v0.3.12 [INFO] [stderr] Checking salsa-macro-rules v0.1.0 [INFO] [stderr] Checking arc-swap v1.7.1 [INFO] [stderr] Checking supports-hyperlinks v3.1.0 [INFO] [stderr] Checking boxcar v0.2.10 [INFO] [stderr] Checking supports-unicode v3.0.0 [INFO] [stderr] Checking addr2line v0.24.2 [INFO] [stderr] Checking rustc-hash v2.1.1 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Compiling crypto-common v0.1.6 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling regex v1.11.1 [INFO] [stderr] Compiling lalrpop-util v0.22.1 [INFO] [stderr] Compiling sha3 v0.10.8 [INFO] [stderr] Compiling lalrpop v0.22.1 [INFO] [stderr] Checking backtrace v0.3.74 [INFO] [stderr] Checking backtrace-ext v0.2.1 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling serde_derive v1.0.218 [INFO] [stderr] Compiling clap_derive v4.5.28 [INFO] [stderr] Compiling miette-derive v7.5.0 [INFO] [stderr] Compiling thiserror-impl v2.0.11 [INFO] [stderr] Compiling salsa-macros v0.18.0 [INFO] [stderr] Compiling logos-derive v0.15.0 [INFO] [stderr] Checking logos v0.15.0 [INFO] [stderr] Checking miette v7.5.0 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking salsa v0.18.0 [INFO] [stderr] Checking clap v4.5.30 [INFO] [stderr] Compiling tree-calculus v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `char` is never read [INFO] [stdout] --> src/lexer.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | char: char, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | token: Token, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `char` is never read [INFO] [stdout] --> src/parser.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | char: char, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `char` is never read [INFO] [stdout] --> src/lexer.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | char: char, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | token: Token, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `char` is never read [INFO] [stdout] --> src/parser.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | char: char, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_index` [INFO] [stdout] --> src/ty.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | let variant_index = fork.left_branch(db); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/ty.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let value = fork.right_branch(db); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `neutral_value` [INFO] [stdout] --> src/ty.rs:129:30 [INFO] [stdout] | [INFO] [stdout] 129 | Self::Reflection(neutral_value) => { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neutral_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_index` [INFO] [stdout] --> src/ty.rs:124:21 [INFO] [stdout] | [INFO] [stdout] 124 | let variant_index = fork.left_branch(db); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/ty.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let value = fork.right_branch(db); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `neutral_value` [INFO] [stdout] --> src/ty.rs:129:30 [INFO] [stdout] | [INFO] [stdout] 129 | Self::Reflection(neutral_value) => { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neutral_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Role` is never used [INFO] [stdout] --> src/tree/mod.rs:184:6 [INFO] [stdout] | [INFO] [stdout] 184 | enum Role { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/tree/mod.rs:191:8 [INFO] [stdout] | [INFO] [stdout] 191 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.45s [INFO] running `Command { std: "docker" "inspect" "550cd9d01581ec0fe7ae3eb03c035d83fc13b016f258f086d2b034ee78daac7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "550cd9d01581ec0fe7ae3eb03c035d83fc13b016f258f086d2b034ee78daac7c", kill_on_drop: false }` [INFO] [stdout] 550cd9d01581ec0fe7ae3eb03c035d83fc13b016f258f086d2b034ee78daac7c