[INFO] fetching crate mirror_sparse_matrix 0.1.17... [INFO] testing mirror_sparse_matrix-0.1.17 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate mirror_sparse_matrix 0.1.17 into /workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mirror_sparse_matrix 0.1.17 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 111 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a3a5ca307f16e77f65fe5afa59d5c0dd0ffc82b29f3ed38762be348eab473ad [INFO] running `Command { std: "docker" "start" "-a" "4a3a5ca307f16e77f65fe5afa59d5c0dd0ffc82b29f3ed38762be348eab473ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a3a5ca307f16e77f65fe5afa59d5c0dd0ffc82b29f3ed38762be348eab473ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a3a5ca307f16e77f65fe5afa59d5c0dd0ffc82b29f3ed38762be348eab473ad", kill_on_drop: false }` [INFO] [stdout] 4a3a5ca307f16e77f65fe5afa59d5c0dd0ffc82b29f3ed38762be348eab473ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6fc9dba26ba33b83e1098d225383b4b056a1cf22a14308fcd53c16639ca9e2b6 [INFO] running `Command { std: "docker" "start" "-a" "6fc9dba26ba33b83e1098d225383b4b056a1cf22a14308fcd53c16639ca9e2b6", kill_on_drop: false }` [INFO] [stderr] Compiling itertools v0.11.0 [INFO] [stderr] Compiling binary_vec_io v0.1.12 [INFO] [stderr] Compiling mirror_sparse_matrix v0.1.17 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `pos` is never read [INFO] [stdout] --> src/lib.rs:316:17 [INFO] [stdout] | [INFO] [stdout] 316 | pos += 1; [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.14s [INFO] running `Command { std: "docker" "inspect" "6fc9dba26ba33b83e1098d225383b4b056a1cf22a14308fcd53c16639ca9e2b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fc9dba26ba33b83e1098d225383b4b056a1cf22a14308fcd53c16639ca9e2b6", kill_on_drop: false }` [INFO] [stdout] 6fc9dba26ba33b83e1098d225383b4b056a1cf22a14308fcd53c16639ca9e2b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ed94404ffac2b7578feeb969e8d4a915baafdda78df9ce1a478bbfab011bc68 [INFO] running `Command { std: "docker" "start" "-a" "7ed94404ffac2b7578feeb969e8d4a915baafdda78df9ce1a478bbfab011bc68", kill_on_drop: false }` [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling getrandom v0.3.4 [INFO] [stderr] Compiling anyhow v1.0.100 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling linux-raw-sys v0.4.15 [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling bytes v1.10.1 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling home v0.5.12 [INFO] [stderr] Compiling aho-corasick v1.1.4 [INFO] [stderr] Compiling regex-syntax v0.8.8 [INFO] [stderr] Compiling lz4-sys v1.11.1+lz4-1.10.0 [INFO] [stderr] Compiling fixedbitset v0.4.2 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling petgraph v0.6.5 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling which v4.4.2 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling regex-automata v0.4.13 [INFO] [stderr] Compiling prost-build v0.9.0 [INFO] [stderr] Compiling uuid v0.8.2 [INFO] [stderr] Compiling log v0.4.28 [INFO] [stderr] Compiling permutation v0.2.5 [INFO] [stderr] Compiling prost-derive v0.9.0 [INFO] [stderr] Compiling object v0.37.3 [INFO] [stderr] Compiling cpp_demangle v0.3.5 [INFO] [stderr] Compiling multimap v0.8.3 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Compiling superslice v1.0.0 [INFO] [stderr] Compiling debugid v0.7.3 [INFO] [stderr] Compiling vector_utils v0.1.5 [INFO] [stderr] Compiling findshlibs v0.10.2 [INFO] [stderr] Compiling instant v0.1.13 [INFO] [stderr] Compiling gimli v0.32.3 [INFO] [stderr] Compiling rustc-demangle v0.1.26 [INFO] [stderr] Compiling symbolic-demangle v8.8.0 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling prost v0.9.0 [INFO] [stderr] Compiling symbolic-common v8.8.0 [INFO] [stderr] Compiling prost-types v0.9.0 [INFO] [stderr] Compiling string_utils v0.1.4 [INFO] [stderr] Compiling nix v0.23.2 [INFO] [stderr] Compiling regex v1.12.2 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling bincode v1.3.3 [INFO] [stderr] Compiling addr2line v0.25.1 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling pprof v0.6.2 [INFO] [stderr] Compiling stats_utils v0.1.3 [INFO] [stdout] warning: value assigned to `pos` is never read [INFO] [stdout] --> src/lib.rs:316:17 [INFO] [stdout] | [INFO] [stdout] 316 | pos += 1; [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] [stderr] Compiling backtrace v0.3.76 [INFO] [stderr] Compiling lz4 v1.28.1 [INFO] [stderr] Compiling io_utils v0.3.2 [INFO] [stderr] Compiling tables v0.1.5 [INFO] [stderr] Compiling pretty_trace v0.5.23 [INFO] [stderr] Compiling mirror_sparse_matrix v0.1.17 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `pos` is never read [INFO] [stdout] --> src/lib.rs:316:17 [INFO] [stdout] | [INFO] [stdout] 316 | pos += 1; [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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 12s [INFO] running `Command { std: "docker" "inspect" "7ed94404ffac2b7578feeb969e8d4a915baafdda78df9ce1a478bbfab011bc68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ed94404ffac2b7578feeb969e8d4a915baafdda78df9ce1a478bbfab011bc68", kill_on_drop: false }` [INFO] [stdout] 7ed94404ffac2b7578feeb969e8d4a915baafdda78df9ce1a478bbfab011bc68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f37db21d42f9c6b44136871cd459a26944035bd702e5bcd1e57e9d9446780698 [INFO] running `Command { std: "docker" "start" "-a" "f37db21d42f9c6b44136871cd459a26944035bd702e5bcd1e57e9d9446780698", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `pos` is never read [INFO] [stderr] --> src/lib.rs:316:17 [INFO] [stderr] | [INFO] [stderr] 316 | pos += 1; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `mirror_sparse_matrix` (lib) generated 1 warning [INFO] [stderr] warning: `mirror_sparse_matrix` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mirror_sparse_matrix-7bed6fcb9242c6d9) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_mirror_sparse_matrix ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Doc-tests mirror_sparse_matrix [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f37db21d42f9c6b44136871cd459a26944035bd702e5bcd1e57e9d9446780698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f37db21d42f9c6b44136871cd459a26944035bd702e5bcd1e57e9d9446780698", kill_on_drop: false }` [INFO] [stdout] f37db21d42f9c6b44136871cd459a26944035bd702e5bcd1e57e9d9446780698