[INFO] fetching crate catvec 0.1.6...
[INFO] testing catvec-0.1.6 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate catvec 0.1.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate catvec 0.1.6
[INFO] finished tweaking crates.io crate catvec 0.1.6
[INFO] tweaked toml for crates.io crate catvec 0.1.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate catvec 0.1.6 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] crate crates.io crate catvec 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+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] 7e60e0c83dead09a980e18b7b9c315683e45e30e6efdb4dd97549e6d68a82b61
[INFO] running `Command { std: "docker" "start" "-a" "7e60e0c83dead09a980e18b7b9c315683e45e30e6efdb4dd97549e6d68a82b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e60e0c83dead09a980e18b7b9c315683e45e30e6efdb4dd97549e6d68a82b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e60e0c83dead09a980e18b7b9c315683e45e30e6efdb4dd97549e6d68a82b61", kill_on_drop: false }`
[INFO] [stdout] 7e60e0c83dead09a980e18b7b9c315683e45e30e6efdb4dd97549e6d68a82b61
[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] 9f2e91084b28f023308c34d029a4d1dcc04aafa7311db35c5900182a8c2bb8dd
[INFO] running `Command { std: "docker" "start" "-a" "9f2e91084b28f023308c34d029a4d1dcc04aafa7311db35c5900182a8c2bb8dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling defmac v0.2.1
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling derive_arbitrary v1.0.2
[INFO] [stderr]    Compiling arbitrary v1.0.2
[INFO] [stderr]    Compiling catvec v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/btree.rs:380:60
[INFO] [stdout]     |
[INFO] [stdout] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout]     |                                                            ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout] 380 +             fringe.length = fringe.children.iter().map(|c| c.len() ).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `first_two_children` and `last_two_children` are never used
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]  --> src/bin/fuzz.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(fuzzing)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]   --> src/bin/fuzz.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[cfg(not(fuzzing))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_once` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "9f2e91084b28f023308c34d029a4d1dcc04aafa7311db35c5900182a8c2bb8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f2e91084b28f023308c34d029a4d1dcc04aafa7311db35c5900182a8c2bb8dd", kill_on_drop: false }`
[INFO] [stdout] 9f2e91084b28f023308c34d029a4d1dcc04aafa7311db35c5900182a8c2bb8dd
[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] ac2de58d3edb694e3436da31dcac347563e6fbc69692b536efe80d43e5c7da86
[INFO] running `Command { std: "docker" "start" "-a" "ac2de58d3edb694e3436da31dcac347563e6fbc69692b536efe80d43e5c7da86", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/btree.rs:380:60
[INFO] [stdout]     |
[INFO] [stdout] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout]     |                                                            ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout] 380 +             fringe.length = fringe.children.iter().map(|c| c.len() ).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `first_two_children` and `last_two_children` are never used
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling catvec v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]  --> src/bin/fuzz.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(fuzzing)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]   --> src/bin/fuzz.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[cfg(not(fuzzing))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_once` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/btree.rs:380:60
[INFO] [stdout]     |
[INFO] [stdout] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout]     |                                                            ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout] 380 +             fringe.length = fringe.children.iter().map(|c| c.len() ).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `first_two_children` and `last_two_children` are never used
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.61s
[INFO] running `Command { std: "docker" "inspect" "ac2de58d3edb694e3436da31dcac347563e6fbc69692b536efe80d43e5c7da86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2de58d3edb694e3436da31dcac347563e6fbc69692b536efe80d43e5c7da86", kill_on_drop: false }`
[INFO] [stdout] ac2de58d3edb694e3436da31dcac347563e6fbc69692b536efe80d43e5c7da86
[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] 4f0ba64d6be6fc8c96c402214483ac70518bc804ca7315daf983be7f72422156
[INFO] running `Command { std: "docker" "start" "-a" "4f0ba64d6be6fc8c96c402214483ac70518bc804ca7315daf983be7f72422156", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/btree.rs:380:60
[INFO] [stderr]     |
[INFO] [stderr] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stderr]     |                                                            ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stderr] 380 +             fringe.length = fringe.children.iter().map(|c| c.len() ).sum();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: methods `first_two_children` and `last_two_children` are never used
[INFO] [stderr]    --> src/btree.rs:536:8
[INFO] [stderr]     |
[INFO] [stderr]  42 | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stderr]     | --------------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `catvec` (lib) generated 2 warnings (run `cargo fix --lib -p catvec` to apply 1 suggestion)
[INFO] [stderr] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stderr]  --> src/bin/fuzz.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[cfg(fuzzing)]
[INFO] [stderr]   |       ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stderr]   --> src/bin/fuzz.rs:91:11
[INFO] [stderr]    |
[INFO] [stderr] 91 | #[cfg(not(fuzzing))]
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Op` is never used
[INFO] [stderr]   --> src/bin/fuzz.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 | enum Op {
[INFO] [stderr]    |      ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `eval` is never used
[INFO] [stderr]   --> src/bin/fuzz.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_once` is never used
[INFO] [stderr]   --> src/bin/fuzz.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn test_once(data: &[u8]) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `catvec` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `catvec` (bin "fuzz" test) generated 5 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/catvec-448752676f256b65)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test btree::tests::basic_insertion ... ok
[INFO] [stdout] test btree::tests::concat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/fuzz.rs (/opt/rustwide/target/debug/deps/fuzz-9708afe9be4c0d6f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests catvec
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/btree.rs:380:60
[INFO] [stderr]     |
[INFO] [stderr] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stderr]     |                                                            ^       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stderr] 380 +             fringe.length = fringe.children.iter().map(|c| c.len() ).sum();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f0ba64d6be6fc8c96c402214483ac70518bc804ca7315daf983be7f72422156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0ba64d6be6fc8c96c402214483ac70518bc804ca7315daf983be7f72422156", kill_on_drop: false }`
[INFO] [stdout] 4f0ba64d6be6fc8c96c402214483ac70518bc804ca7315daf983be7f72422156
