[INFO] fetching crate dense 2.0.0... [INFO] testing dense-2.0.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate dense 2.0.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate dense 2.0.0 [INFO] finished tweaking crates.io crate dense 2.0.0 [INFO] tweaked toml for crates.io crate dense 2.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dense 2.0.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding ndarray v0.15.6 (available: v0.16.1) [INFO] [stderr] Adding num-bytes v0.3.0 (available: v0.4.0) [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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c0a53eab288bf5b67b24b92c4543c38eea306cc7a5a7a368cea1a17ecb1aaeb6 [INFO] running `Command { std: "docker" "start" "-a" "c0a53eab288bf5b67b24b92c4543c38eea306cc7a5a7a368cea1a17ecb1aaeb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c0a53eab288bf5b67b24b92c4543c38eea306cc7a5a7a368cea1a17ecb1aaeb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0a53eab288bf5b67b24b92c4543c38eea306cc7a5a7a368cea1a17ecb1aaeb6", kill_on_drop: false }` [INFO] [stdout] c0a53eab288bf5b67b24b92c4543c38eea306cc7a5a7a368cea1a17ecb1aaeb6 [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=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] 5187ab47db189c9b8055e8fddcdaa30510df9ed54ebcbc89235ebefdbd677ced [INFO] running `Command { std: "docker" "start" "-a" "5187ab47db189c9b8055e8fddcdaa30510df9ed54ebcbc89235ebefdbd677ced", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling matrixmultiply v0.3.10 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling num-bytes v0.3.0 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling num-complex v0.4.6 [INFO] [stderr] Compiling num-bigint v0.4.6 [INFO] [stderr] Compiling num-iter v0.1.45 [INFO] [stderr] Compiling ndarray v0.15.6 [INFO] [stderr] Compiling num-rational v0.4.2 [INFO] [stderr] Compiling num v0.4.3 [INFO] [stderr] Compiling dense v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.05s [INFO] running `Command { std: "docker" "inspect" "5187ab47db189c9b8055e8fddcdaa30510df9ed54ebcbc89235ebefdbd677ced", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5187ab47db189c9b8055e8fddcdaa30510df9ed54ebcbc89235ebefdbd677ced", kill_on_drop: false }` [INFO] [stdout] 5187ab47db189c9b8055e8fddcdaa30510df9ed54ebcbc89235ebefdbd677ced [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=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] e2971c5e2d980a3a683481e4f2b63096117bf12d8070b4f144a15a89f0eb77f5 [INFO] running `Command { std: "docker" "start" "-a" "e2971c5e2d980a3a683481e4f2b63096117bf12d8070b4f144a15a89f0eb77f5", kill_on_drop: false }` [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Compiling matrixmultiply v0.2.4 [INFO] [stderr] Compiling mnist_read v1.0.1 [INFO] [stderr] Compiling dense v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.52s [INFO] running `Command { std: "docker" "inspect" "e2971c5e2d980a3a683481e4f2b63096117bf12d8070b4f144a15a89f0eb77f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2971c5e2d980a3a683481e4f2b63096117bf12d8070b4f144a15a89f0eb77f5", kill_on_drop: false }` [INFO] [stdout] e2971c5e2d980a3a683481e4f2b63096117bf12d8070b4f144a15a89f0eb77f5 [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=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] 57f27533159992ae361df203d35ea333693847aed507f7bf5489cf6c61bb28b1 [INFO] running `Command { std: "docker" "start" "-a" "57f27533159992ae361df203d35ea333693847aed507f7bf5489cf6c61bb28b1", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dense-ec836419701b6d9a) [INFO] [stdout] [INFO] [stderr] Doc-tests dense [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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - write (line 70) ... FAILED [INFO] [stdout] test src/lib.rs - read (line 16) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - write (line 70) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] [INFO] [stdout] thread 'main' (82) panicked at src/lib.rs:10:44: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x638e3495d132 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x638e3495d132 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x638e3495d132 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x638e3495d132 - ::fmt::h67edf0e4d33c343c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x638e3496c8bf - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x638e3496c8bf - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x638e3493b1a1 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x638e3493b1a1 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x638e349406c2 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x638e34941f7c - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x638e34941dd6 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stdout] 11: 0x638e34942605 - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13 [INFO] [stdout] 12: 0x638e3494249a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13 [INFO] [stdout] 13: 0x638e349407f9 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 14: 0x638e3492fb9d - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stdout] 15: 0x638e34970010 - core::panicking::panic_fmt::h420ddb7fd73daf53 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14 [INFO] [stdout] 16: 0x638e3496f676 - core::result::unwrap_failed::hdde076be853d034f [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1855:5 [INFO] [stdout] 17: 0x638e349270b9 - rust_out::main::_doctest_main_src_lib_rs_70_0::h02a66b458f642b1a [INFO] [stdout] 18: 0x638e34926da6 - rust_out::main::h909c389308a13d94 [INFO] [stdout] 19: 0x638e3490e5d3 - core::ops::function::FnOnce::call_once::he80aaf16098e337a [INFO] [stdout] 20: 0x638e3490d5c6 - std::sys::backtrace::__rust_begin_short_backtrace::hd4f5856814720a68 [INFO] [stdout] 21: 0x638e3490d509 - std::rt::lang_start::{{closure}}::hdd522a24cafb4b4b [INFO] [stdout] 22: 0x638e3493c5e0 - core::ops::function::impls:: for &F>::call_once::h4967fb77e0dfb65c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21 [INFO] [stdout] 23: 0x638e3493c5e0 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 24: 0x638e3493c5e0 - std::panicking::catch_unwind::h26f0e342004b5114 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 25: 0x638e3493c5e0 - std::panic::catch_unwind::h9ee33ca17775d897 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 26: 0x638e3493c5e0 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24 [INFO] [stdout] 27: 0x638e3493c5e0 - std::panicking::catch_unwind::do_call::h819db0a7788e7259 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 28: 0x638e3493c5e0 - std::panicking::catch_unwind::h23e08fb4a7b9f405 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 29: 0x638e3493c5e0 - std::panic::catch_unwind::h7ca3d9eabb6135ff [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x638e3493c5e0 - std::rt::lang_start_internal::h06ad7395f4fda8d7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5 [INFO] [stdout] 31: 0x638e3490d4f1 - std::rt::lang_start::h5d51bffdfd88737a [INFO] [stdout] 32: 0x638e34928665 - main [INFO] [stdout] 33: 0x7236a3d151ca - [INFO] [stdout] 34: 0x7236a3d1528b - __libc_start_main [INFO] [stdout] 35: 0x638e34907a15 - _start [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - read (line 16) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] [INFO] [stdout] thread 'main' (83) panicked at src/lib.rs:10:44: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5d66f3577132 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5d66f3577132 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5d66f3577132 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5d66f3577132 - ::fmt::h67edf0e4d33c343c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5d66f35868bf - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5d66f35868bf - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5d66f35551a1 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5d66f35551a1 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5d66f355a6c2 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5d66f355bf7c - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5d66f355bdd6 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stdout] 11: 0x5d66f355c605 - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13 [INFO] [stdout] 12: 0x5d66f355c49a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13 [INFO] [stdout] 13: 0x5d66f355a7f9 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 14: 0x5d66f3549b9d - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stdout] 15: 0x5d66f358a010 - core::panicking::panic_fmt::h420ddb7fd73daf53 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14 [INFO] [stdout] 16: 0x5d66f3589676 - core::result::unwrap_failed::hdde076be853d034f [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1855:5 [INFO] [stdout] 17: 0x5d66f35410b9 - rust_out::main::_doctest_main_src_lib_rs_16_0::h53a34c402b89b8c0 [INFO] [stdout] 18: 0x5d66f3540da6 - rust_out::main::h909c389308a13d94 [INFO] [stdout] 19: 0x5d66f35285d3 - core::ops::function::FnOnce::call_once::he80aaf16098e337a [INFO] [stdout] 20: 0x5d66f35275c6 - std::sys::backtrace::__rust_begin_short_backtrace::hd4f5856814720a68 [INFO] [stdout] 21: 0x5d66f3527509 - std::rt::lang_start::{{closure}}::hdd522a24cafb4b4b [INFO] [stdout] 22: 0x5d66f35565e0 - core::ops::function::impls:: for &F>::call_once::h4967fb77e0dfb65c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21 [INFO] [stdout] 23: 0x5d66f35565e0 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 24: 0x5d66f35565e0 - std::panicking::catch_unwind::h26f0e342004b5114 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 25: 0x5d66f35565e0 - std::panic::catch_unwind::h9ee33ca17775d897 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 26: 0x5d66f35565e0 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24 [INFO] [stdout] 27: 0x5d66f35565e0 - std::panicking::catch_unwind::do_call::h819db0a7788e7259 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 28: 0x5d66f35565e0 - std::panicking::catch_unwind::h23e08fb4a7b9f405 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 29: 0x5d66f35565e0 - std::panic::catch_unwind::h7ca3d9eabb6135ff [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x5d66f35565e0 - std::rt::lang_start_internal::h06ad7395f4fda8d7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5 [INFO] [stdout] 31: 0x5d66f35274f1 - std::rt::lang_start::h5d51bffdfd88737a [INFO] [stdout] 32: 0x5d66f3542665 - main [INFO] [stdout] 33: 0x7b7e653821ca - [INFO] [stdout] 34: 0x7b7e6538228b - __libc_start_main [INFO] [stdout] 35: 0x5d66f3521a15 - _start [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - read (line 16) [INFO] [stdout] src/lib.rs - write (line 70) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "57f27533159992ae361df203d35ea333693847aed507f7bf5489cf6c61bb28b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57f27533159992ae361df203d35ea333693847aed507f7bf5489cf6c61bb28b1", kill_on_drop: false }` [INFO] [stdout] 57f27533159992ae361df203d35ea333693847aed507f7bf5489cf6c61bb28b1