[INFO] fetching crate seqdb 0.2.16...
[INFO] testing seqdb-0.2.16 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate seqdb 0.2.16 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate seqdb 0.2.16
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate seqdb 0.2.16
[INFO] tweaked toml for crates.io crate seqdb 0.2.16 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seqdb 0.2.16 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate seqdb 0.2.16 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1eb79f4f11431e79aff41b7766de996630de3dc76c83834ba4a08d1a3c3200e7
[INFO] running `Command { std: "docker" "start" "-a" "1eb79f4f11431e79aff41b7766de996630de3dc76c83834ba4a08d1a3c3200e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1eb79f4f11431e79aff41b7766de996630de3dc76c83834ba4a08d1a3c3200e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb79f4f11431e79aff41b7766de996630de3dc76c83834ba4a08d1a3c3200e7", kill_on_drop: false }`
[INFO] [stdout] 1eb79f4f11431e79aff41b7766de996630de3dc76c83834ba4a08d1a3c3200e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fb768f0302f7c717acec0ae7864fea1d685a1c3ae1d4e1f1647c1ee0e9ce3af
[INFO] running `Command { std: "docker" "start" "-a" "1fb768f0302f7c717acec0ae7864fea1d685a1c3ae1d4e1f1647c1ee0e9ce3af", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling allocative v0.3.4
[INFO] [stderr]    Compiling seqdb v0.2.16 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling memmap2 v0.9.8
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling allocative_derive v0.3.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stdout] warning: struct `FPunchhole` is never constructed
[INFO] [stdout]    --> src/lib.rs:685:8
[INFO] [stdout]     |
[INFO] [stdout] 685 | struct FPunchhole {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.16s
[INFO] running `Command { std: "docker" "inspect" "1fb768f0302f7c717acec0ae7864fea1d685a1c3ae1d4e1f1647c1ee0e9ce3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb768f0302f7c717acec0ae7864fea1d685a1c3ae1d4e1f1647c1ee0e9ce3af", kill_on_drop: false }`
[INFO] [stdout] 1fb768f0302f7c717acec0ae7864fea1d685a1c3ae1d4e1f1647c1ee0e9ce3af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53036b3bd12f180fff6364df0df1abdb22589633db179de7002ad7fee51d4cde
[INFO] running `Command { std: "docker" "start" "-a" "53036b3bd12f180fff6364df0df1abdb22589633db179de7002ad7fee51d4cde", kill_on_drop: false }`
[INFO] [stdout] warning: struct `FPunchhole` is never constructed
[INFO] [stdout]    --> src/lib.rs:685:8
[INFO] [stdout]     |
[INFO] [stdout] 685 | struct FPunchhole {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling seqdb v0.2.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FPunchhole` is never constructed
[INFO] [stdout]    --> src/lib.rs:685:8
[INFO] [stdout]     |
[INFO] [stdout] 685 | struct FPunchhole {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "53036b3bd12f180fff6364df0df1abdb22589633db179de7002ad7fee51d4cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53036b3bd12f180fff6364df0df1abdb22589633db179de7002ad7fee51d4cde", kill_on_drop: false }`
[INFO] [stdout] 53036b3bd12f180fff6364df0df1abdb22589633db179de7002ad7fee51d4cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e41354dd414ab12bce1c099ce3dd3d827146171ef0a22ca08d72f065f3febdd
[INFO] running `Command { std: "docker" "start" "-a" "9e41354dd414ab12bce1c099ce3dd3d827146171ef0a22ca08d72f065f3febdd", kill_on_drop: false }`
[INFO] [stderr] warning: struct `FPunchhole` is never constructed
[INFO] [stderr]    --> src/lib.rs:685:8
[INFO] [stderr]     |
[INFO] [stderr] 685 | struct FPunchhole {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `seqdb` (lib) generated 1 warning
[INFO] [stderr] warning: `seqdb` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/seqdb-c2f2ff5fabc82795)
[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] [stderr]    Doc-tests seqdb
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 29) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 80) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: IO(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] Error: "the test returned a termination value with a non-zero status code (1) which indicates a failure"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 29) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: IO(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] Error: "the test returned a termination value with a non-zero status code (1) which indicates a failure"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 29)
[INFO] [stdout]     src/lib.rs - (line 80)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.83s; merged doctests compilation took 0.81s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9e41354dd414ab12bce1c099ce3dd3d827146171ef0a22ca08d72f065f3febdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e41354dd414ab12bce1c099ce3dd3d827146171ef0a22ca08d72f065f3febdd", kill_on_drop: false }`
[INFO] [stdout] 9e41354dd414ab12bce1c099ce3dd3d827146171ef0a22ca08d72f065f3febdd