[INFO] cloning repository https://github.com/bgkillas/ucalc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bgkillas/ucalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgkillas%2Fucalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgkillas%2Fucalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b718c1a417dd5fcdff1fc13098b2c59eb04d4ec6
[INFO] checking bgkillas/ucalc against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgkillas%2Fucalc" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/bgkillas/ucalc
[INFO] finished tweaking git repo https://github.com/bgkillas/ucalc
[INFO] tweaked toml for git repo https://github.com/bgkillas/ucalc written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bgkillas/ucalc on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bgkillas/ucalc 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76b36ddfe7bf1cf103aa46507b3048f73918fc2f7e0220e74f245ca92b3be2f8
[INFO] running `Command { std: "docker" "start" "-a" "76b36ddfe7bf1cf103aa46507b3048f73918fc2f7e0220e74f245ca92b3be2f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b36ddfe7bf1cf103aa46507b3048f73918fc2f7e0220e74f245ca92b3be2f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b36ddfe7bf1cf103aa46507b3048f73918fc2f7e0220e74f245ca92b3be2f8", kill_on_drop: false }`
[INFO] [stdout] 76b36ddfe7bf1cf103aa46507b3048f73918fc2f7e0220e74f245ca92b3be2f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6115b4e79b7faa1a79fe1152f6f14484dc040265cd11bdcf723d312d8315f7dd
[INFO] running `Command { std: "docker" "start" "-a" "6115b4e79b7faa1a79fe1152f6f14484dc040265cd11bdcf723d312d8315f7dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking lexical-util v1.0.7
[INFO] [stderr]    Compiling cc v1.2.60
[INFO] [stderr]     Checking libloading v0.8.9
[INFO] [stderr]    Compiling wayland-client v0.31.14
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking dlib v0.5.3
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking rand_core v0.10.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking cursor-icon v1.2.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking lexical-parse-integer v1.0.6
[INFO] [stderr]     Checking lexical-write-integer v1.0.6
[INFO] [stderr]    Compiling quick-xml v0.39.2
[INFO] [stderr]    Compiling wayland-sys v0.31.11
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling smithay-client-toolkit v0.19.2
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]     Checking xcursor v0.3.10
[INFO] [stderr]     Checking lexical-parse-float v1.0.6
[INFO] [stderr]     Checking xkeysym v0.2.1
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]     Checking lexical-write-float v1.0.6
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling winit v0.30.13
[INFO] [stderr]     Checking raw-window-handle v0.6.2
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling ucalc_numbers_macros v0.0.2 (/opt/rustwide/workdir/ucalc_numbers_macros)
[INFO] [stderr]     Checking smol_str v0.2.2
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]     Checking dpi v0.1.2
[INFO] [stderr]     Checking lexical-core v1.0.6
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]     Checking lexical v7.0.5
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]    Compiling wayland-scanner v0.31.10
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking memmap2 v0.9.10
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]    Compiling wayland-backend v0.3.15
[INFO] [stderr]    Compiling stacker v0.1.23
[INFO] [stderr]     Checking float_base v0.0.2 (/opt/rustwide/workdir/float_base)
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking xkbcommon-dl v0.4.2
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.44
[INFO] [stderr]     Checking signal-hook-mio v0.2.5
[INFO] [stderr]     Checking ucalc_numbers v0.0.2 (/opt/rustwide/workdir/ucalc_numbers)
[INFO] [stdout] error: struct `Matrix` is never constructed
[INFO] [stdout]   --> ucalc_numbers/src/types.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Matrix<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ucalc_numbers` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Matrix` is never constructed
[INFO] [stdout]   --> ucalc_numbers/src/types.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Matrix<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ucalc_numbers` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6115b4e79b7faa1a79fe1152f6f14484dc040265cd11bdcf723d312d8315f7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6115b4e79b7faa1a79fe1152f6f14484dc040265cd11bdcf723d312d8315f7dd", kill_on_drop: false }`
[INFO] [stdout] 6115b4e79b7faa1a79fe1152f6f14484dc040265cd11bdcf723d312d8315f7dd