[INFO] fetching crate mirror_sparse_matrix 0.1.17...
[INFO] checking mirror_sparse_matrix-0.1.17 against master#12f35ad39ed3e39df4d953c46d4f6cc6c82adc96 for pr-155299-1
[INFO] extracting crate mirror_sparse_matrix 0.1.17 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mirror_sparse_matrix 0.1.17
[INFO] finished tweaking crates.io crate mirror_sparse_matrix 0.1.17
[INFO] tweaked toml for crates.io crate mirror_sparse_matrix 0.1.17 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mirror_sparse_matrix 0.1.17 on toolchain 12f35ad39ed3e39df4d953c46d4f6cc6c82adc96
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "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" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 132 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutation v0.2.5
[INFO] [stderr]   Downloaded tables v0.1.5
[INFO] [stderr]   Downloaded superslice v1.0.0
[INFO] [stderr]   Downloaded vector_utils v0.1.5
[INFO] [stderr]   Downloaded pretty_trace v0.5.23
[INFO] [stderr]   Downloaded multimap v0.8.3
[INFO] [stderr]   Downloaded binary_vec_io v0.1.12
[INFO] [stderr]   Downloaded string_utils v0.1.4
[INFO] [stderr]   Downloaded io_utils v0.3.2
[INFO] [stderr]   Downloaded prost-derive v0.9.0
[INFO] [stderr]   Downloaded debugid v0.7.3
[INFO] [stderr]   Downloaded stats_utils v0.1.3
[INFO] [stderr]   Downloaded findshlibs v0.10.2
[INFO] [stderr]   Downloaded prost v0.9.0
[INFO] [stderr]   Downloaded prost-types v0.9.0
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded pprof v0.6.2
[INFO] [stderr]   Downloaded cpp_demangle v0.3.5
[INFO] [stderr]   Downloaded wit-bindgen v0.57.1
[INFO] [stderr]   Downloaded wasip2 v1.0.3+wasi-0.2.9
[INFO] [stderr]   Downloaded symbolic-common v8.8.0
[INFO] [stderr]   Downloaded itertools v0.11.0
[INFO] [stderr]   Downloaded symbolic-demangle v8.8.0
[INFO] [stderr]   Downloaded prost-build v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed6ff0a475dbfc1c0d1580f0530881d79330e0362a626fe26a2d1dfc7362ff41
[INFO] running `Command { std: "docker" "start" "-a" "ed6ff0a475dbfc1c0d1580f0530881d79330e0362a626fe26a2d1dfc7362ff41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed6ff0a475dbfc1c0d1580f0530881d79330e0362a626fe26a2d1dfc7362ff41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed6ff0a475dbfc1c0d1580f0530881d79330e0362a626fe26a2d1dfc7362ff41", kill_on_drop: false }`
[INFO] [stdout] ed6ff0a475dbfc1c0d1580f0530881d79330e0362a626fe26a2d1dfc7362ff41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f0810b5002717de4a3225cb07f13daa2a8daaf27a98eea0a2b4e80547bfe2a7
[INFO] running `Command { std: "docker" "start" "-a" "4f0810b5002717de4a3225cb07f13daa2a8daaf27a98eea0a2b4e80547bfe2a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]     Checking simd-adler32 v0.3.9
[INFO] [stderr]    Compiling lz4-sys v1.11.1+lz4-1.10.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking permutation v0.2.5
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking debugid v0.7.3
[INFO] [stderr]     Checking vector_utils v0.1.5
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling symbolic-demangle v8.8.0
[INFO] [stderr]     Checking string_utils v0.1.4
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]     Checking flate2 v1.1.9
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking stats_utils v0.1.3
[INFO] [stderr]     Checking binary_vec_io v0.1.12
[INFO] [stderr]     Checking mirror_sparse_matrix v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/lib.rs:316:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 pos += col_labels[j].len();
[INFO] [stdout]     |                 -------------------------- `pos` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 316 |                 pos += 1;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]     Checking symbolic-common v8.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling pprof v0.6.2
[INFO] [stderr]     Checking lz4 v1.28.1
[INFO] [stderr]     Checking io_utils v0.3.2
[INFO] [stderr]     Checking tables v0.1.5
[INFO] [stderr]     Checking pretty_trace v0.5.23
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/lib.rs:316:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 pos += col_labels[j].len();
[INFO] [stdout]     |                 -------------------------- `pos` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 316 |                 pos += 1;
[INFO] [stdout]     |                 ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.11s
[INFO] running `Command { std: "docker" "inspect" "4f0810b5002717de4a3225cb07f13daa2a8daaf27a98eea0a2b4e80547bfe2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0810b5002717de4a3225cb07f13daa2a8daaf27a98eea0a2b4e80547bfe2a7", kill_on_drop: false }`
[INFO] [stdout] 4f0810b5002717de4a3225cb07f13daa2a8daaf27a98eea0a2b4e80547bfe2a7