[INFO] cloning repository https://github.com/mindbeam/editor-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mindbeam/editor-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindbeam%2Feditor-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindbeam%2Feditor-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9c448693dd3f8310c5035d6dbb37af4076c9df5
[INFO] testing mindbeam/editor-experiment against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindbeam%2Feditor-experiment" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mindbeam/editor-experiment on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mindbeam/editor-experiment
[INFO] finished tweaking git repo https://github.com/mindbeam/editor-experiment
[INFO] tweaked toml for git repo https://github.com/mindbeam/editor-experiment written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mindbeam/editor-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fbfa5555e2df6e44880bc2e060d2facf6a510adef95762e1d384026d030ac4ad
[INFO] running `Command { std: "docker" "start" "-a" "fbfa5555e2df6e44880bc2e060d2facf6a510adef95762e1d384026d030ac4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbfa5555e2df6e44880bc2e060d2facf6a510adef95762e1d384026d030ac4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbfa5555e2df6e44880bc2e060d2facf6a510adef95762e1d384026d030ac4ad", kill_on_drop: false }`
[INFO] [stdout] fbfa5555e2df6e44880bc2e060d2facf6a510adef95762e1d384026d030ac4ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb8797563606d463d5dbf101b24a09236825f97d26640fb7b0ce560aae8f9e1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "eb8797563606d463d5dbf101b24a09236825f97d26640fb7b0ce560aae8f9e1a", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-core v0.1.14
[INFO] [stderr]    Compiling sharded-slab v0.0.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling ahash v0.4.4
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.1
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.10
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling enum-map v0.6.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling structopt v0.3.16
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling cursive_core v0.1.1
[INFO] [stderr]    Compiling cursive v0.15.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling tracing-serde v0.1.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.11
[INFO] [stderr]    Compiling tracing-appender v0.1.1
[INFO] [stderr]    Compiling design-study-texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `document::Document`
[INFO] [stdout]  --> src/node.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{cursor::Cursor, document::Document, util::mutstr::MutStr};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RangeFrom`
[INFO] [stdout]  --> src/util/mutstr.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{RangeBounds, RangeFrom};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/cursor.rs:89:63
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.depth_first_scan(|_node_id, node, render_offset, children| {
[INFO] [stdout]    |                                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `positions`
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `try_avoid_zero`
[INFO] [stdout]   --> src/document.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         try_avoid_zero: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_try_avoid_zero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/node.rs:119:30
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Action::Insert { offset, body } => body.find(c),
[INFO] [stdout]     |                              ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `Key`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cursive::event::{Event, Key};
[INFO] [stdout]   |                      ^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dialog`, `EditView`, `OnEventView`, `TextArea`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cursive::views::{Dialog, EditView, OnEventView, TextArea};
[INFO] [stdout]   |                      ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cursive::Cursive`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cursive::Cursive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `available`
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_available`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let width = usize::max(width, 1);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_node_id`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     rows: Vec<Row>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_rows`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     max_width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 52s
[INFO] running `Command { std: "docker" "inspect" "eb8797563606d463d5dbf101b24a09236825f97d26640fb7b0ce560aae8f9e1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb8797563606d463d5dbf101b24a09236825f97d26640fb7b0ce560aae8f9e1a", kill_on_drop: false }`
[INFO] [stdout] eb8797563606d463d5dbf101b24a09236825f97d26640fb7b0ce560aae8f9e1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64323cbb6b28444d710b4d6ad7b640738be9e4c4149005b29ff1a5016a5161e8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "64323cbb6b28444d710b4d6ad7b640738be9e4c4149005b29ff1a5016a5161e8", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] [stderr]    Compiling design-study-texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `document::Document`
[INFO] [stdout]  --> src/node.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{cursor::Cursor, document::Document, util::mutstr::MutStr};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RangeFrom`
[INFO] [stdout]  --> src/util/mutstr.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{RangeBounds, RangeFrom};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/cursor.rs:89:63
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.depth_first_scan(|_node_id, node, render_offset, children| {
[INFO] [stdout]    |                                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `positions`
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `try_avoid_zero`
[INFO] [stdout]   --> src/document.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         try_avoid_zero: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_try_avoid_zero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/node.rs:119:30
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Action::Insert { offset, body } => body.find(c),
[INFO] [stdout]     |                              ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `Key`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cursive::event::{Event, Key};
[INFO] [stdout]   |                      ^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dialog`, `EditView`, `OnEventView`, `TextArea`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cursive::views::{Dialog, EditView, OnEventView, TextArea};
[INFO] [stdout]   |                      ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cursive::Cursive`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cursive::Cursive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `available`
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_available`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let width = usize::max(width, 1);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_node_id`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     rows: Vec<Row>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_rows`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     max_width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> tests/basic.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `document::Document`
[INFO] [stdout]  --> src/node.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{cursor::Cursor, document::Document, util::mutstr::MutStr};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RangeFrom`
[INFO] [stdout]  --> src/util/mutstr.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{RangeBounds, RangeFrom};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `Key`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cursive::event::{Event, Key};
[INFO] [stdout]   |                      ^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dialog`, `EditView`, `OnEventView`, `TextArea`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cursive::views::{Dialog, EditView, OnEventView, TextArea};
[INFO] [stdout]   |                      ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cursive::Cursive`
[INFO] [stdout]  --> src/bin/editor/editor_window.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cursive::Cursive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `available`
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_available`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let width = usize::max(width, 1);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_node_id`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut available = size.x;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut buf = String::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     rows: Vec<Row>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_rows`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_width`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     max_width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/cursor.rs:89:63
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.depth_first_scan(|_node_id, node, render_offset, children| {
[INFO] [stdout]    |                                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]    --> src/cursor.rs:258:34
[INFO] [stdout]     |
[INFO] [stdout] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stdout]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/cursor.rs:258:43
[INFO] [stdout]     |
[INFO] [stdout] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stdout]     |                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `render_offset`
[INFO] [stdout]    --> src/cursor.rs:258:49
[INFO] [stdout]     |
[INFO] [stdout] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_render_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/cursor.rs:258:64
[INFO] [stdout]     |
[INFO] [stdout] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stdout]     |                                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/cursor.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |         let mut count = 0;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `positions`
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `try_avoid_zero`
[INFO] [stdout]   --> src/document.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         try_avoid_zero: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_try_avoid_zero`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/node.rs:119:30
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Action::Insert { offset, body } => body.find(c),
[INFO] [stdout]     |                              ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cursor.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |         let mut count = 0;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mut node_id: NodeId,
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/document.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         mut positions: usize,
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `incremental_scan`
[INFO] [stdout]    --> src/cursor.rs:240:8
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn incremental_scan() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "64323cbb6b28444d710b4d6ad7b640738be9e4c4149005b29ff1a5016a5161e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64323cbb6b28444d710b4d6ad7b640738be9e4c4149005b29ff1a5016a5161e8", kill_on_drop: false }`
[INFO] [stdout] 64323cbb6b28444d710b4d6ad7b640738be9e4c4149005b29ff1a5016a5161e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c44ebccc6343009039f0f7eec65b0d56dafd452c34023cdee8790b9ae449ba85
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c44ebccc6343009039f0f7eec65b0d56dafd452c34023cdee8790b9ae449ba85", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] [stderr] warning: unused import: `document::Document`
[INFO] [stderr]  --> src/node.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{cursor::Cursor, document::Document, util::mutstr::MutStr};
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RangeFrom`
[INFO] [stderr]  --> src/util/mutstr.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{RangeBounds, RangeFrom};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `children`
[INFO] [stderr]   --> src/cursor.rs:89:63
[INFO] [stderr]    |
[INFO] [stderr] 89 |         self.depth_first_scan(|_node_id, node, render_offset, children| {
[INFO] [stderr]    |                                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node_id`
[INFO] [stderr]   --> src/document.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         mut node_id: NodeId,
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `positions`
[INFO] [stderr]   --> src/document.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         mut positions: usize,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `try_avoid_zero`
[INFO] [stderr]   --> src/document.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         try_avoid_zero: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_try_avoid_zero`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/node.rs:119:30
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Action::Insert { offset, body } => body.find(c),
[INFO] [stderr]     |                              ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         mut node_id: NodeId,
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         mut positions: usize,
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `document::Document`
[INFO] [stderr]  --> src/node.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{cursor::Cursor, document::Document, util::mutstr::MutStr};
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RangeFrom`
[INFO] [stderr]  --> src/util/mutstr.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{RangeBounds, RangeFrom};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `children`
[INFO] [stderr]   --> src/cursor.rs:89:63
[INFO] [stderr]    |
[INFO] [stderr] 89 |         self.depth_first_scan(|_node_id, node, render_offset, children| {
[INFO] [stderr]    |                                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node_id`
[INFO] [stderr]    --> src/cursor.rs:258:34
[INFO] [stderr]     |
[INFO] [stderr] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stderr]     |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]    --> src/cursor.rs:258:43
[INFO] [stderr]     |
[INFO] [stderr] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stderr]     |                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `render_offset`
[INFO] [stderr]    --> src/cursor.rs:258:49
[INFO] [stderr]     |
[INFO] [stderr] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_render_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `children`
[INFO] [stderr]    --> src/cursor.rs:258:64
[INFO] [stderr]     |
[INFO] [stderr] 258 |         cursor.depth_first_scan(|node_id, node, render_offset, children| {
[INFO] [stderr]     |                                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/cursor.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut count = 0;
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node_id`
[INFO] [stderr]   --> src/document.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         mut node_id: NodeId,
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `positions`
[INFO] [stderr]   --> src/document.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         mut positions: usize,
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `try_avoid_zero`
[INFO] [stderr]   --> src/document.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         try_avoid_zero: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_try_avoid_zero`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/node.rs:119:30
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Action::Insert { offset, body } => body.find(c),
[INFO] [stderr]     |                              ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cursor.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut count = 0;
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         mut node_id: NodeId,
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/document.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         mut positions: usize,
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `incremental_scan`
[INFO] [stderr]    --> src/cursor.rs:240:8
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn incremental_scan() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Event`, `Key`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:1:22
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cursive::event::{Event, Key};
[INFO] [stderr]   |                      ^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Dialog`, `EditView`, `OnEventView`, `TextArea`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use cursive::views::{Dialog, EditView, OnEventView, TextArea};
[INFO] [stderr]   |                      ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cursive::Cursive`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cursive::Cursive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available`
[INFO] [stderr]   --> src/bin/editor/editor.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut available = size.x;
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_available`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let width = usize::max(width, 1);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cursor`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_node_id`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut buf = String::new();
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/editor.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut available = size.x;
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut buf = String::new();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rows`
[INFO] [stderr]   --> src/bin/editor/editor.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     rows: Vec<Row>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_rows`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_width`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     max_width: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Event`, `Key`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:1:22
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cursive::event::{Event, Key};
[INFO] [stderr]   |                      ^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Dialog`, `EditView`, `OnEventView`, `TextArea`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use cursive::views::{Dialog, EditView, OnEventView, TextArea};
[INFO] [stderr]   |                      ^^^^^^  ^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cursive::Cursive`
[INFO] [stderr]  --> src/bin/editor/editor_window.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cursive::Cursive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available`
[INFO] [stderr]   --> src/bin/editor/editor.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut available = size.x;
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_available`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let width = usize::max(width, 1);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cursor`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_node_id`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut buf = String::new();
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/editor.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut available = size.x;
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/util/row.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut last_node_id = self.cursor.node_id.clone();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/editor/util/row.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut buf = String::new();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rows`
[INFO] [stderr]   --> src/bin/editor/editor.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     rows: Vec<Row>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_rows`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn make_rows(cursor: Cursor, width: usize) -> Vec<Row> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_width`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     max_width: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> tests/basic.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/design_study_texteditor-b105e09765b86032
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test node::test::test1 ... ok
[INFO] [stdout] test cursor::test::limit_2 ... ok
[INFO] [stdout] test test::multiple_deletes ... ok
[INFO] [stdout] test test::basic_deletion_and_regional_projection ... ok
[INFO] [stdout] test util::mutstr::test::slice ... ok
[INFO] [stdout] test util::mutstr::test::bad_insert ... ok
[INFO] [stdout] test util::mutstr::test::bad_remove ... ok
[INFO] [stdout] test cursor::test::limit ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- cursor::test::limit stdout ----
[INFO] [stdout] thread 'cursor::test::limit' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/util/logging.rs:13:14
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55887bd9fa30 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55887bd9fa30 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55887bd9fa30 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55887bd9fa30 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55887bdc29ec - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x55887bcac3f5 - std::io::Write::write_fmt::h50a71e2460ce07da
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x55887bd9a7a1 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h9bbd3fed8160d0d2
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/impls.rs:176
[INFO] [stdout]    7:     0x55887bda1ed0 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x55887bda1ed0 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x55887bda1ed0 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]   10:     0x55887bda1bc6 - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:216
[INFO] [stdout]   11:     0x55887bda2533 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   12:     0x55887bda2109 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   13:     0x55887bd9febc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x55887bda20c9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   15:     0x55887bdc12a1 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stdout]   16:     0x55887bdc10c3 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stdout]   17:     0x55887bca694b - core::result::Result<T,E>::unwrap::hb93f81f00c4920f5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/result.rs:973
[INFO] [stdout]   18:     0x55887bc97ea0 - design_study_texteditor::util::logging::init_logging::mkwriter::h3301969f53da119f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/util/logging.rs:9
[INFO] [stdout]   19:     0x55887bc927ae - core::ops::function::Fn::call::hced78516764d6084
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:70
[INFO] [stdout]   20:     0x55887bc975ce - <F as tracing_subscriber::fmt::writer::MakeWriter>::make_writer::h276f9cd6240ae10a
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/fmt/writer.rs:53
[INFO] [stdout]   21:     0x55887bca4f94 - <tracing_subscriber::fmt::fmt_layer::Layer<S,N,E,W> as tracing_subscriber::layer::Layer<S>>::on_event::{{closure}}::hd049c95593ae9325
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/fmt/fmt_layer.rs:707
[INFO] [stdout]   22:     0x55887bc84861 - std::thread::local::LocalKey<T>::try_with::h44e6a3a7f9bc98f7
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/local.rs:265
[INFO] [stdout]   23:     0x55887bc8474d - std::thread::local::LocalKey<T>::with::h1e0c168a7a829457
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/local.rs:241
[INFO] [stdout]   24:     0x55887bca4dad - <tracing_subscriber::fmt::fmt_layer::Layer<S,N,E,W> as tracing_subscriber::layer::Layer<S>>::on_event::he1965a1153bbefdf
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/fmt/fmt_layer.rs:690
[INFO] [stdout]   25:     0x55887bc9c637 - <tracing_subscriber::layer::Layered<L,S> as tracing_core::subscriber::Subscriber>::event::h42aedf00da0077ac
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/layer.rs:651
[INFO] [stdout]   26:     0x55887bc9c5a9 - <tracing_subscriber::layer::Layered<L,S> as tracing_core::subscriber::Subscriber>::event::h094282ee03a3a5d0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/layer.rs:650
[INFO] [stdout]   27:     0x55887bc89a43 - <tracing_subscriber::fmt::Subscriber<N,E,F,W> as tracing_core::subscriber::Subscriber>::event::h92f23d54e31d6c09
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-subscriber-0.2.11/src/fmt/mod.rs:327
[INFO] [stdout]   28:     0x55887bd5c453 - tracing_core::dispatcher::Dispatch::event::h874d920c8fc7b915
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.14/src/dispatcher.rs:509
[INFO] [stdout]   29:     0x55887bd5bbfc - tracing_core::event::Event::dispatch::{{closure}}::h90653be102ec4de2
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.14/src/event.rs:36
[INFO] [stdout]   30:     0x55887bd5c210 - tracing_core::dispatcher::get_default::{{closure}}::h27c8b4d2a04d472e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.14/src/dispatcher.rs:352
[INFO] [stdout]   31:     0x55887bd5cd81 - std::thread::local::LocalKey<T>::try_with::h156d052f2e6aa3c3
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/local.rs:265
[INFO] [stdout]   32:     0x55887bd5bf98 - tracing_core::dispatcher::get_default::h78b2650ca5ef7805
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.14/src/dispatcher.rs:339
[INFO] [stdout]   33:     0x55887bc844b5 - tracing_core::event::Event::dispatch::hbf8f28d089d5a2b4
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.14/src/event.rs:35
[INFO] [stdout]   34:     0x55887bc9a33c - design_study_texteditor::node::Node::project::he95ae27c49ebec3b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/node.rs:126
[INFO] [stdout]   35:     0x55887bc8f987 - design_study_texteditor::cursor::Cursor::project_forward::{{closure}}::hfb98ebcf2f65a719
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:95
[INFO] [stdout]   36:     0x55887bc9001f - design_study_texteditor::cursor::Cursor::depth_first_scan::hbc4871c3d3e42b0b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:172
[INFO] [stdout]   37:     0x55887bc8f8af - design_study_texteditor::cursor::Cursor::project_forward::h7e476173f366b93d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:89
[INFO] [stdout]   38:     0x55887bc8fbab - design_study_texteditor::cursor::Cursor::rewind_and_project::hf3b84a498e7017db
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:123
[INFO] [stdout]   39:     0x55887bc98026 - design_study_texteditor::cursor::test::limit::h6dc775cc4d320146
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:212
[INFO] [stdout]   40:     0x55887bc97eca - design_study_texteditor::cursor::test::limit::{{closure}}::h6fdb39b13ab4cb64
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:202
[INFO] [stdout]   41:     0x55887bc9285e - core::ops::function::FnOnce::call_once::h13af5a7f16fd61ff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   42:     0x55887bcd4cd3 - core::ops::function::FnOnce::call_once::hd04d57b5cf16f85a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   43:     0x55887bcd4cd3 - test::__rust_begin_short_backtrace::hd8e9a8c5a2e43388
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:517
[INFO] [stdout]   44:     0x55887bcd31a3 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h3c3db8a500c1a19a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   45:     0x55887bcd31a3 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h043e9ebcbe360c80
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   46:     0x55887bcd31a3 - std::panicking::try::do_call::h47c2fb275506c2e8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   47:     0x55887bcd31a3 - std::panicking::try::h569c20f0e99453b4
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   48:     0x55887bcd31a3 - std::panic::catch_unwind::hb33c6d0f01540d23
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   49:     0x55887bcd31a3 - test::run_test_in_process::hc0ce562d167e51cf
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:544
[INFO] [stdout]   50:     0x55887bcd31a3 - test::run_test::run_test_inner::{{closure}}::hd3120982fcd71544
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:450
[INFO] [stdout]   51:     0x55887bcab826 - std::sys_common::backtrace::__rust_begin_short_backtrace::h84f8bc12cc4cdac6
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   52:     0x55887bcb0a55 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hb8b5fa0ba425d4db
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stdout]   53:     0x55887bcb0a55 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc4b84b244cf55f75
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   54:     0x55887bcb0a55 - std::panicking::try::do_call::ha31922ad8fa17753
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   55:     0x55887bcb0a55 - std::panicking::try::h38a6da203722ae6e
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   56:     0x55887bcb0a55 - std::panic::catch_unwind::h83afce167c9062b9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   57:     0x55887bcb0a55 - std::thread::Builder::spawn_unchecked::{{closure}}::h160689155590a70c
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stdout]   58:     0x55887bcb0a55 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7dbf17a455132a46
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   59:     0x55887bda8d3a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   60:     0x55887bda8d3a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   61:     0x55887bda8d3a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   62:     0x7f58d3007609 - start_thread
[INFO] [stdout]   63:     0x7f58d2f13103 - clone
[INFO] [stdout]   64:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     cursor::test::limit
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "c44ebccc6343009039f0f7eec65b0d56dafd452c34023cdee8790b9ae449ba85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44ebccc6343009039f0f7eec65b0d56dafd452c34023cdee8790b9ae449ba85", kill_on_drop: false }`
[INFO] [stdout] c44ebccc6343009039f0f7eec65b0d56dafd452c34023cdee8790b9ae449ba85
