[INFO] fetching crate benchplot 0.1.1...
[INFO] testing benchplot-0.1.1 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate benchplot 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate benchplot 0.1.1
[INFO] finished tweaking crates.io crate benchplot 0.1.1
[INFO] tweaked toml for crates.io crate benchplot 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate benchplot 0.1.1 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 116 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c0631b88126fc628cc4cfed63548e86270c405e9ed19b7be7bf3071ff869571
[INFO] running `Command { std: "docker" "start" "-a" "6c0631b88126fc628cc4cfed63548e86270c405e9ed19b7be7bf3071ff869571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c0631b88126fc628cc4cfed63548e86270c405e9ed19b7be7bf3071ff869571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0631b88126fc628cc4cfed63548e86270c405e9ed19b7be7bf3071ff869571", kill_on_drop: false }`
[INFO] [stdout] 6c0631b88126fc628cc4cfed63548e86270c405e9ed19b7be7bf3071ff869571
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b2b63770c92ed7dcb89839316a8af620af729648a54835414f2aa5743ff9a57
[INFO] running `Command { std: "docker" "start" "-a" "2b2b63770c92ed7dcb89839316a8af620af729648a54835414f2aa5743ff9a57", kill_on_drop: false }`
[INFO] [stderr]    Compiling pathfinder_simd v0.5.5
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v6.0.0
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling weezl v0.1.12
[INFO] [stderr]    Compiling jpeg-decoder v0.3.2
[INFO] [stderr]    Compiling font-kit v0.14.3
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling ttf-parser v0.20.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling text_io v0.1.13
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling plotters-bitmap v0.3.7
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling benchplot v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.58s
[INFO] running `Command { std: "docker" "inspect" "2b2b63770c92ed7dcb89839316a8af620af729648a54835414f2aa5743ff9a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2b63770c92ed7dcb89839316a8af620af729648a54835414f2aa5743ff9a57", kill_on_drop: false }`
[INFO] [stdout] 2b2b63770c92ed7dcb89839316a8af620af729648a54835414f2aa5743ff9a57
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9651c91a6452cd9420a920753b4844aebbc521b941f62d655c330c55d8cea2b6
[INFO] running `Command { std: "docker" "start" "-a" "9651c91a6452cd9420a920753b4844aebbc521b941f62d655c330c55d8cea2b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling font-kit v0.14.3
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling benchplot v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "9651c91a6452cd9420a920753b4844aebbc521b941f62d655c330c55d8cea2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9651c91a6452cd9420a920753b4844aebbc521b941f62d655c330c55d8cea2b6", kill_on_drop: false }`
[INFO] [stdout] 9651c91a6452cd9420a920753b4844aebbc521b941f62d655c330c55d8cea2b6
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88a66b7408963a020133278b62490b41ccd67ee163b391fb1a4375c6a6fe9e69
[INFO] running `Command { std: "docker" "start" "-a" "88a66b7408963a020133278b62490b41ccd67ee163b391fb1a4375c6a6fe9e69", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/benchplot-0c919333840dc995)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test bench::builder::tests::test_assert_equal ... ok
[INFO] [stdout] test bench::builder::tests::test_bench_builder_only_mandatory_args ... ok
[INFO] [stdout] test bench::builder::tests::test_setting_repetitions ... ok
[INFO] [stdout] test bench::builder::tests::test_zero_repetitions ... ok
[INFO] [stdout] test bench::builder::tests::test_no_functions ... ok
[INFO] [stdout] test bench::plot::superscript_tests::test_superscript_multi_digit ... ok
[INFO] [stdout] test bench::plot::superscript_tests::test_superscript_single_digit ... ok
[INFO] [stdout] test util::tests::test_all_elements_equal ... ok
[INFO] [stdout] test bench::builder::tests::test_no_sizes ... ok
[INFO] [stdout] test bench::builder::tests::test_setting_parallel ... ok
[INFO] [stdout] test util::tests::test_different_elements ... ok
[INFO] [stdout] test util::tests::test_single_element ... ok
[INFO] [stdout] test util::tests::test_empty_iterator ... ok
[INFO] [stdout] test bench::plot::plot_tests::test_plot_with_title ... ok
[INFO] [stdout] test bench::plot::plot_tests::test_plot_file_creation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests benchplot
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 22) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
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[INFO] [stdout] size index: 14, function index: 2
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (71) panicked at src/lib.rs:38:10:
[INFO] [stdout] Plotting failed: DrawingError(BackendError(DrawingError(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60f2f87c2592 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60f2f87c2592 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60f2f87c2592 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x60f2f87c2592 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x60f2f87d3faa - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x60f2f87d3faa - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x60f2f879af86 - std::io::default_write_fmt::h72db0b4dbd5dcfa2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60f2f879af86 - std::io::Write::write_fmt::hb496f2b9b027aa16
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x60f2f87a66a9 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x60f2f87a66a9 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x60f2f87a6509 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x60f2f87a699b - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x60f2f87a6768 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x60f2f87a25c9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x60f2f878fc9d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x60f2f87dcf9c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x60f2f87dc272 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x60f2f868de37 - core::result::Result<T,E>::expect::h2c4f0f13cc03e253
[INFO] [stdout]   18:     0x60f2f86b5316 - rust_out::main::hfd6f621749dac69f
[INFO] [stdout]   19:     0x60f2f867fa33 - core::ops::function::FnOnce::call_once::hb1397b18da3aaedb
[INFO] [stdout]   20:     0x60f2f867c126 - std::sys::backtrace::__rust_begin_short_backtrace::h8c9a816bbcffd5a8
[INFO] [stdout]   21:     0x60f2f867c049 - std::rt::lang_start::{{closure}}::he61f35d05d768b48
[INFO] [stdout]   22:     0x60f2f879c6b6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd1cc8864ab2ce613
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x60f2f879c6b6 - std::panicking::catch_unwind::do_call::h761b8a8d54647a61
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   24:     0x60f2f879c6b6 - std::panicking::catch_unwind::hb78a0edcad597ebc
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   25:     0x60f2f879c6b6 - std::panic::catch_unwind::hf40177800cac754b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x60f2f879c6b6 - std::rt::lang_start_internal::{{closure}}::ha1b3ca2f45db2265
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x60f2f879c6b6 - std::panicking::catch_unwind::do_call::hca68f60e509d57f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x60f2f879c6b6 - std::panicking::catch_unwind::h75a65b4419799b0f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x60f2f879c6b6 - std::panic::catch_unwind::h56fc4c7ccdf741b6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x60f2f879c6b6 - std::rt::lang_start_internal::h267ec6e0203f10ab
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x60f2f867c031 - std::rt::lang_start::h9890a617c1815e16
[INFO] [stdout]   32:     0x60f2f86be815 - main
[INFO] [stdout]   33:     0x7b32cf77c1ca - <unknown>
[INFO] [stdout]   34:     0x7b32cf77c28b - __libc_start_main
[INFO] [stdout]   35:     0x60f2f86687e5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 12.02s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "88a66b7408963a020133278b62490b41ccd67ee163b391fb1a4375c6a6fe9e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a66b7408963a020133278b62490b41ccd67ee163b391fb1a4375c6a6fe9e69", kill_on_drop: false }`
[INFO] [stdout] 88a66b7408963a020133278b62490b41ccd67ee163b391fb1a4375c6a6fe9e69
