[INFO] fetching crate nnrs 0.2.3...
[INFO] testing nnrs-0.2.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate nnrs 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate nnrs 0.2.3
[INFO] finished tweaking crates.io crate nnrs 0.2.3
[INFO] tweaked toml for crates.io crate nnrs 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nnrs 0.2.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65c71d4953b619e2a9f94f1636c8754b2c870484b478e56c8655edbcec5a0bfd
[INFO] running `Command { std: "docker" "start" "-a" "65c71d4953b619e2a9f94f1636c8754b2c870484b478e56c8655edbcec5a0bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65c71d4953b619e2a9f94f1636c8754b2c870484b478e56c8655edbcec5a0bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c71d4953b619e2a9f94f1636c8754b2c870484b478e56c8655edbcec5a0bfd", kill_on_drop: false }`
[INFO] [stdout] 65c71d4953b619e2a9f94f1636c8754b2c870484b478e56c8655edbcec5a0bfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 942c4cba29a65ee4df9e959441fe395a87c00313222af13c3e85e7938a2324d1
[INFO] running `Command { std: "docker" "start" "-a" "942c4cba29a65ee4df9e959441fe395a87c00313222af13c3e85e7938a2324d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling nnrs v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "942c4cba29a65ee4df9e959441fe395a87c00313222af13c3e85e7938a2324d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942c4cba29a65ee4df9e959441fe395a87c00313222af13c3e85e7938a2324d1", kill_on_drop: false }`
[INFO] [stdout] 942c4cba29a65ee4df9e959441fe395a87c00313222af13c3e85e7938a2324d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11fbfe0411209043a754cd46737f8a86f0197233660ea602499d7d36b6e22d76
[INFO] running `Command { std: "docker" "start" "-a" "11fbfe0411209043a754cd46737f8a86f0197233660ea602499d7d36b6e22d76", kill_on_drop: false }`
[INFO] [stderr]    Compiling nnrs v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "11fbfe0411209043a754cd46737f8a86f0197233660ea602499d7d36b6e22d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11fbfe0411209043a754cd46737f8a86f0197233660ea602499d7d36b6e22d76", kill_on_drop: false }`
[INFO] [stdout] 11fbfe0411209043a754cd46737f8a86f0197233660ea602499d7d36b6e22d76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47e31adb342bb23d0500632b7962ea632b20a2a1d2e2026a83ff8ab605ef7f91
[INFO] running `Command { std: "docker" "start" "-a" "47e31adb342bb23d0500632b7962ea632b20a2a1d2e2026a83ff8ab605ef7f91", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nnrs-076ed072f372d493)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_io ... ok
[INFO] [stdout] test test_serialization ... ok
[INFO] [stdout] test test_creation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nnrs
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/network.rs - network::Network::fire (line 65) ... ok
[INFO] [stdout] test src/network.rs - network::Network::deserialized (line 236) ... ok
[INFO] [stdout] test src/network.rs - network::Network::create (line 315) ... ok
[INFO] [stdout] test src/network.rs - network::Network::input_node_ids (line 345) ... ok
[INFO] [stdout] test src/network.rs - network::Network::add_layer (line 188) ... ok
[INFO] [stdout] test src/network.rs - network::Network::output_node_ids (line 360) ... ok
[INFO] [stdout] test src/node.rs - node::Node::create (line 34) ... ok
[INFO] [stdout] test src/network.rs - network::Network::serialize (line 218) ... ok
[INFO] [stdout] test src/node.rs - node::Node::create_with_custom_activation (line 49) ... ok
[INFO] [stdout] test src/edge.rs - edge::Edge::create (line 18) ... ok
[INFO] [stdout] test src/network.rs - network::Network::load (line 284) ... FAILED
[INFO] [stdout] test src/network.rs - network::Network::save (line 263) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/network.rs - network::Network::load (line 284) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (390) panicked at src/network.rs:13:30:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Could not create file
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.100/src/backtrace.rs:27:14
[INFO] [stdout]    1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.100/src/context.rs:54:37
[INFO] [stdout]    2: nnrs::network::Network::save
[INFO] [stdout]              at ./src/network.rs:275:43
[INFO] [stdout]    3: rust_out::main::_doctest_main_src_network_rs_284_0
[INFO] [stdout]    4: rust_out::main
[INFO] [stdout]    5: core::ops::function::FnOnce::call_once
[INFO] [stdout]    6: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]    7: std::rt::lang_start::{{closure}}
[INFO] [stdout]    8: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]    9: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   10: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   11: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   12: std::rt::lang_start_internal::{{closure}}
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24
[INFO] [stdout]   13: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   14: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   15: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   16: std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5
[INFO] [stdout]   17: std::rt::lang_start
[INFO] [stdout]   18: main
[INFO] [stdout]   19: <unknown>
[INFO] [stdout]   20: __libc_start_main
[INFO] [stdout]   21: _start
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6341c5992be2 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6341c5992be2 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6341c5992be2 - std::sys::backtrace::_print_fmt::h255777b7ec902439
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6341c5992be2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8a1ac49fcd7ee8ce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6341c59a306f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6341c59a306f - core::fmt::write::hbdcc0ec4f1bab1db
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6341c59704f3 - std::io::default_write_fmt::hb29d13affe7e9cd0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6341c59704f3 - std::io::Write::write_fmt::hec441b8c6eca32b9
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6341c5975622 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6341c59777cc - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6341c5977626 - std::panicking::default_hook::h9d66b9642014ce48
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x6341c5977da5 - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x6341c5977c3a - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x6341c5975759 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x6341c5964e8d - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x6341c59aa920 - core::panicking::panic_fmt::h774fb860369a0f7b
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x6341c59a9ea6 - core::result::unwrap_failed::h72ee8fcbf1bf8ff9
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/result.rs:1862:5
[INFO] [stdout]   17:     0x6341c5900f22 - rust_out::main::_doctest_main_src_network_rs_284_0::ha56edfea12f5948c
[INFO] [stdout]   18:     0x6341c59007e6 - rust_out::main::h583ff58340d718d9
[INFO] [stdout]   19:     0x6341c58ffdc3 - core::ops::function::FnOnce::call_once::h14c180921ac1da5e
[INFO] [stdout]   20:     0x6341c58ffc36 - std::sys::backtrace::__rust_begin_short_backtrace::h6b98eb9b1ad88857
[INFO] [stdout]   21:     0x6341c58ffc19 - std::rt::lang_start::{{closure}}::h2fc95fa84f0c83a2
[INFO] [stdout]   22:     0x6341c59716a0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9095abc9db71b07e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x6341c59716a0 - std::panicking::catch_unwind::do_call::h6cf5dc461761418c
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   24:     0x6341c59716a0 - std::panicking::catch_unwind::h60074fd2327f40bd
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   25:     0x6341c59716a0 - std::panic::catch_unwind::heb14fa8e39d051cf
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x6341c59716a0 - std::rt::lang_start_internal::{{closure}}::hfb550bec36306a19
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x6341c59716a0 - std::panicking::catch_unwind::do_call::hc805f36f35b6d647
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x6341c59716a0 - std::panicking::catch_unwind::hb8d32f0195463ad2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x6341c59716a0 - std::panic::catch_unwind::hcebe3b1d5adfc5a2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x6341c59716a0 - std::rt::lang_start_internal::h27f55ed238aa26df
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x6341c58ffc01 - std::rt::lang_start::h762c340aaede70f7
[INFO] [stdout]   32:     0x6341c5901525 - main
[INFO] [stdout]   33:     0x77e1041881ca - <unknown>
[INFO] [stdout]   34:     0x77e10418828b - __libc_start_main
[INFO] [stdout]   35:     0x6341c58ffb15 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/network.rs - network::Network::save (line 263) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (392) panicked at src/network.rs:13:30:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Could not create file
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.100/src/backtrace.rs:27:14
[INFO] [stdout]    1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.100/src/context.rs:54:37
[INFO] [stdout]    2: nnrs::network::Network::save
[INFO] [stdout]              at ./src/network.rs:275:43
[INFO] [stdout]    3: rust_out::main::_doctest_main_src_network_rs_263_0
[INFO] [stdout]    4: rust_out::main
[INFO] [stdout]    5: core::ops::function::FnOnce::call_once
[INFO] [stdout]    6: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]    7: std::rt::lang_start::{{closure}}
[INFO] [stdout]    8: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]    9: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   10: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   11: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   12: std::rt::lang_start_internal::{{closure}}
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24
[INFO] [stdout]   13: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   14: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   15: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   16: std::rt::lang_start_internal
[INFO] [stdout]              at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5
[INFO] [stdout]   17: std::rt::lang_start
[INFO] [stdout]   18: main
[INFO] [stdout]   19: <unknown>
[INFO] [stdout]   20: __libc_start_main
[INFO] [stdout]   21: _start
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6310c15b65e2 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6310c15b65e2 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6310c15b65e2 - std::sys::backtrace::_print_fmt::h255777b7ec902439
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6310c15b65e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8a1ac49fcd7ee8ce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6310c15c574f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6310c15c574f - core::fmt::write::hbdcc0ec4f1bab1db
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6310c1593f13 - std::io::default_write_fmt::hb29d13affe7e9cd0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6310c1593f13 - std::io::Write::write_fmt::hec441b8c6eca32b9
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6310c1599042 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6310c159b1ec - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6310c159b046 - std::panicking::default_hook::h9d66b9642014ce48
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x6310c159b7c5 - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x6310c159b65a - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x6310c1599179 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x6310c15888ad - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x6310c15c8f10 - core::panicking::panic_fmt::h774fb860369a0f7b
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x6310c15c84c6 - core::result::unwrap_failed::h72ee8fcbf1bf8ff9
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/result.rs:1862:5
[INFO] [stdout]   17:     0x6310c155f56f - rust_out::main::_doctest_main_src_network_rs_263_0::hc3c39f3ef4495e76
[INFO] [stdout]   18:     0x6310c155ee86 - rust_out::main::h583ff58340d718d9
[INFO] [stdout]   19:     0x6310c155ecf3 - core::ops::function::FnOnce::call_once::h14c180921ac1da5e
[INFO] [stdout]   20:     0x6310c155ecd6 - std::sys::backtrace::__rust_begin_short_backtrace::h6b98eb9b1ad88857
[INFO] [stdout]   21:     0x6310c155ecb9 - std::rt::lang_start::{{closure}}::h2fc95fa84f0c83a2
[INFO] [stdout]   22:     0x6310c15950c0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9095abc9db71b07e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x6310c15950c0 - std::panicking::catch_unwind::do_call::h6cf5dc461761418c
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   24:     0x6310c15950c0 - std::panicking::catch_unwind::h60074fd2327f40bd
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   25:     0x6310c15950c0 - std::panic::catch_unwind::heb14fa8e39d051cf
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x6310c15950c0 - std::rt::lang_start_internal::{{closure}}::hfb550bec36306a19
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x6310c15950c0 - std::panicking::catch_unwind::do_call::hc805f36f35b6d647
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x6310c15950c0 - std::panicking::catch_unwind::hb8d32f0195463ad2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x6310c15950c0 - std::panic::catch_unwind::hcebe3b1d5adfc5a2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x6310c15950c0 - std::rt::lang_start_internal::h27f55ed238aa26df
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x6310c155eca1 - std::rt::lang_start::h762c340aaede70f7
[INFO] [stdout]   32:     0x6310c155f615 - main
[INFO] [stdout]   33:     0x75ef7d4381ca - <unknown>
[INFO] [stdout]   34:     0x75ef7d43828b - __libc_start_main
[INFO] [stdout]   35:     0x6310c155ebb5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/network.rs - network::Network::load (line 284)
[INFO] [stdout]     src/network.rs - network::Network::save (line 263)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 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" "47e31adb342bb23d0500632b7962ea632b20a2a1d2e2026a83ff8ab605ef7f91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e31adb342bb23d0500632b7962ea632b20a2a1d2e2026a83ff8ab605ef7f91", kill_on_drop: false }`
[INFO] [stdout] 47e31adb342bb23d0500632b7962ea632b20a2a1d2e2026a83ff8ab605ef7f91
