[INFO] fetching crate neuroflow 0.1.3... [INFO] testing neuroflow-0.1.3 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479 [INFO] extracting crate neuroflow 0.1.3 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate neuroflow 0.1.3 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate neuroflow 0.1.3 [INFO] finished tweaking crates.io crate neuroflow 0.1.3 [INFO] tweaked toml for crates.io crate neuroflow 0.1.3 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1ca295b1524bafb0057e8233ec58ac49cac7d1e48bf1e9afb4792886d91bb0d5 [INFO] running `Command { std: "docker" "start" "-a" "1ca295b1524bafb0057e8233ec58ac49cac7d1e48bf1e9afb4792886d91bb0d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ca295b1524bafb0057e8233ec58ac49cac7d1e48bf1e9afb4792886d91bb0d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ca295b1524bafb0057e8233ec58ac49cac7d1e48bf1e9afb4792886d91bb0d5", kill_on_drop: false }` [INFO] [stdout] 1ca295b1524bafb0057e8233ec58ac49cac7d1e48bf1e9afb4792886d91bb0d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f6c229d46e8b3a9a4690a889817037c5a756bce00b5a6a923005971883d7f05 [INFO] running `Command { std: "docker" "start" "-a" "7f6c229d46e8b3a9a4690a889817037c5a756bce00b5a6a923005971883d7f05", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling bstr v0.2.16 [INFO] [stderr] Compiling bincode v0.9.2 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling neuroflow v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/data/mod.rs:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn from_csv(file_path: &str) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:140:18 [INFO] [stdout] | [INFO] [stdout] 140 | StdError(Box) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nn` [INFO] [stdout] --> src/estimators/mod.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_nn` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `obj` [INFO] [stdout] --> src/io/mod.rs:85:37 [INFO] [stdout] | [INFO] [stdout] 85 | pub fn to_json(obj: T) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obj` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/io/mod.rs:90:18 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn from_json(s: &str){ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.80s [INFO] running `Command { std: "docker" "inspect" "7f6c229d46e8b3a9a4690a889817037c5a756bce00b5a6a923005971883d7f05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f6c229d46e8b3a9a4690a889817037c5a756bce00b5a6a923005971883d7f05", kill_on_drop: false }` [INFO] [stdout] 7f6c229d46e8b3a9a4690a889817037c5a756bce00b5a6a923005971883d7f05 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 532f032de0e46d7427c14e484ee156ca98dbe485791283a4a03a4b01993b87b7 [INFO] running `Command { std: "docker" "start" "-a" "532f032de0e46d7427c14e484ee156ca98dbe485791283a4a03a4b01993b87b7", kill_on_drop: false }` [INFO] [stderr] Compiling time v0.1.44 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/data/mod.rs:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn from_csv(file_path: &str) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:140:18 [INFO] [stdout] | [INFO] [stdout] 140 | StdError(Box) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nn` [INFO] [stdout] --> src/estimators/mod.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_nn` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `obj` [INFO] [stdout] --> src/io/mod.rs:85:37 [INFO] [stdout] | [INFO] [stdout] 85 | pub fn to_json(obj: T) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obj` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/io/mod.rs:90:18 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn from_json(s: &str){ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling neuroflow v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/data/mod.rs:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn from_csv(file_path: &str) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:140:18 [INFO] [stdout] | [INFO] [stdout] 140 | StdError(Box) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nn` [INFO] [stdout] --> src/estimators/mod.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_nn` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `obj` [INFO] [stdout] --> src/io/mod.rs:85:37 [INFO] [stdout] | [INFO] [stdout] 85 | pub fn to_json(obj: T) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_obj` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/io/mod.rs:90:18 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn from_json(s: &str){ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.66s [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "532f032de0e46d7427c14e484ee156ca98dbe485791283a4a03a4b01993b87b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "532f032de0e46d7427c14e484ee156ca98dbe485791283a4a03a4b01993b87b7", kill_on_drop: false }` [INFO] [stdout] 532f032de0e46d7427c14e484ee156ca98dbe485791283a4a03a4b01993b87b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6d21f52fdbf2265337367b69f4121e8d9337cd7ec9a8dd86ac1ce59879fdfaae [INFO] running `Command { std: "docker" "start" "-a" "6d21f52fdbf2265337367b69f4121e8d9337cd7ec9a8dd86ac1ce59879fdfaae", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/data/mod.rs:113:61 [INFO] [stderr] | [INFO] [stderr] 113 | pub fn from_csv(file_path: &str) -> Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:140:18 [INFO] [stderr] | [INFO] [stderr] 140 | StdError(Box) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nn` [INFO] [stderr] --> src/estimators/mod.rs:26:12 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn OBS(nn: &super::FeedForward) { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_nn` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `obj` [INFO] [stderr] --> src/io/mod.rs:85:37 [INFO] [stderr] | [INFO] [stderr] 85 | pub fn to_json(obj: T) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_obj` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/io/mod.rs:90:18 [INFO] [stderr] | [INFO] [stderr] 90 | pub fn from_json(s: &str){ [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: `neuroflow` (lib) generated 5 warnings [INFO] [stderr] warning: `neuroflow` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/neuroflow-9c08948f952142bb) [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests neuroflow [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 29 tests [INFO] [stdout] test src/lib.rs - FeedForward::calc (line 474) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::new (line 76) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::unbind (line 413) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::mean (line 186) ... ok [INFO] [stdout] test src/lib.rs - FeedForward (line 223) ... ok [INFO] [stdout] test src/lib.rs - FeedForward (line 194) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::new (line 295) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::fit (line 450) ... ok [INFO] [stdout] test src/lib.rs - FeedForward (line 186) ... ok [INFO] [stdout] test src/io/mod.rs - io::save (line 42) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::from_csv (line 103) ... ok [INFO] [stdout] test src/data/mod.rs - data::Extractable (line 17) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::remove (line 271) ... ok [INFO] [stdout] test src/lib.rs - (line 89) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::bind (line 397) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::sum (line 149) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::learning_rate (line 515) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::momentum (line 532) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet (line 48) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::round (line 222) ... ok [INFO] [stdout] test src/io/mod.rs - io (line 19) ... ok [INFO] [stdout] test src/data/mod.rs - data::DataSet::push (line 254) ... ok [INFO] [stdout] test src/lib.rs - FeedForward (line 213) ... ok [INFO] [stdout] test src/io/mod.rs - io (line 8) ... ok [INFO] [stdout] test src/lib.rs - (line 60) ... FAILED [INFO] [stdout] test src/io/mod.rs - io::load (line 67) ... ok [INFO] [stdout] test src/lib.rs - FeedForward (line 202) ... ok [INFO] [stdout] test src/lib.rs - FeedForward::train (line 429) ... ok [INFO] [stdout] test src/lib.rs - (line 10) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 60) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IO(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })', src/lib.rs:13:28 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5603eca35de0 - std::backtrace_rs::backtrace::libunwind::trace::h99dbb39dca18857d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x5603eca35de0 - std::backtrace_rs::backtrace::trace_unsynchronized::h832861927e9cfedf [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5603eca35de0 - std::sys_common::backtrace::_print_fmt::h3d18154c77dcf310 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x5603eca35de0 - ::fmt::he312f4ad5b9bb346 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x5603eca53b7c - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x5603eca34745 - std::io::Write::write_fmt::h6aced00850e8186f [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/io/mod.rs:1665:15 [INFO] [stdout] 6: 0x5603eca37a1b - std::sys_common::backtrace::_print::h65d996766de40da4 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x5603eca37a1b - std::sys_common::backtrace::print::h40df9727e635f303 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x5603eca37a1b - std::panicking::default_hook::{{closure}}::hd2da4327dea91a51 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x5603eca374f1 - std::panicking::default_hook::h3d55120ad6ada158 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x5603eca380e4 - std::panicking::rust_panic_with_hook::hf85dd0bb545e3b55 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x5603eca37bc7 - std::panicking::begin_panic_handler::{{closure}}::h736ae969434da9fa [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x5603eca362bc - std::sys_common::backtrace::__rust_end_short_backtrace::h6133bb80b1d6c3e0 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x5603eca37b29 - rust_begin_unwind [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x5603ec9fce21 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x5603ec9fcf13 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1599:5 [INFO] [stdout] 16: 0x5603eca018d3 - core::result::Result::unwrap::h10d9c85f0b92f853 [INFO] [stdout] 17: 0x5603eca098fc - rust_out::main::_doctest_main_src_lib_rs_60_0::h0cef25bc98aacc99 [INFO] [stdout] 18: 0x5603eca098a6 - rust_out::main::h61823b600df25383 [INFO] [stdout] 19: 0x5603eca00bf3 - core::ops::function::FnOnce::call_once::h6cb22c19cf103035 [INFO] [stdout] 20: 0x5603ec9ffd29 - std::sys_common::backtrace::__rust_begin_short_backtrace::h637ba5cce8c91c49 [INFO] [stdout] 21: 0x5603eca007c9 - std::rt::lang_start::{{closure}}::h712a4ed327341491 [INFO] [stdout] 22: 0x5603eca385ea - core::ops::function::impls:: for &F>::call_once::h5a0483c8d4e9c15d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 23: 0x5603eca385ea - std::panicking::try::do_call::h6ad7918f175f6ddd [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 24: 0x5603eca385ea - std::panicking::try::hcd5af58f52320690 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 25: 0x5603eca385ea - std::panic::catch_unwind::hf1ae33ba67228f1e [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 26: 0x5603eca385ea - std::rt::lang_start_internal::{{closure}}::h4a87bc0aa1312dc5 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:45:48 [INFO] [stdout] 27: 0x5603eca385ea - std::panicking::try::do_call::h1ade2a52932fc900 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 28: 0x5603eca385ea - std::panicking::try::h6f4a87ad169e174b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 29: 0x5603eca385ea - std::panic::catch_unwind::h043c7f08019f9e2a [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 30: 0x5603eca385ea - std::rt::lang_start_internal::h82825699ebfd70bd [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:45:20 [INFO] [stdout] 31: 0x5603eca007a1 - std::rt::lang_start::h7f3abfe234c3922d [INFO] [stdout] 32: 0x5603eca099a3 - main [INFO] [stdout] 33: 0x7f0391f3d0b3 - __libc_start_main [INFO] [stdout] 34: 0x5603ec9fd5de - _start [INFO] [stdout] 35: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 60) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 28 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.53s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "6d21f52fdbf2265337367b69f4121e8d9337cd7ec9a8dd86ac1ce59879fdfaae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d21f52fdbf2265337367b69f4121e8d9337cd7ec9a8dd86ac1ce59879fdfaae", kill_on_drop: false }` [INFO] [stdout] 6d21f52fdbf2265337367b69f4121e8d9337cd7ec9a8dd86ac1ce59879fdfaae