[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 master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindbeam%2Feditor-experiment" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mindbeam/editor-experiment on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mindbeam/editor-experiment 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd974a456245fb76e1327f8846e1ea9e7ceaede39168d0c665f9715a73314ed8
[INFO] running `Command { std: "docker" "start" "-a" "dd974a456245fb76e1327f8846e1ea9e7ceaede39168d0c665f9715a73314ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd974a456245fb76e1327f8846e1ea9e7ceaede39168d0c665f9715a73314ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd974a456245fb76e1327f8846e1ea9e7ceaede39168d0c665f9715a73314ed8", kill_on_drop: false }`
[INFO] [stdout] dd974a456245fb76e1327f8846e1ea9e7ceaede39168d0c665f9715a73314ed8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 978dd723d68ff5768fb114a00826367a2fca5d2950c1a33839d36e3b6f08dd4f
[INFO] running `Command { std: "docker" "start" "-a" "978dd723d68ff5768fb114a00826367a2fca5d2950c1a33839d36e3b6f08dd4f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling tracing-core v0.1.14
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling ahash v0.4.4
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling sharded-slab v0.0.9
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling sha2 v0.9.1
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.10
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[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 tracing-serde v0.1.1
[INFO] [stderr]    Compiling cursive v0.15.0
[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:90:13
[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:91:13
[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: 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: 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cursor.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/document.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                  ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event` and `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`, and `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:46:17
[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: 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: 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:50:17
[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:51:17
[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/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 `rows` is never read
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Editor {
[INFO] [stdout]    |            ------ field in this struct
[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 `make_rows` is never used
[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: struct `RowIterator` is never constructed
[INFO] [stdout]   --> src/bin/editor/util/row.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct RowIterator {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl RowIterator {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 42s
[INFO] running `Command { std: "docker" "inspect" "978dd723d68ff5768fb114a00826367a2fca5d2950c1a33839d36e3b6f08dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978dd723d68ff5768fb114a00826367a2fca5d2950c1a33839d36e3b6f08dd4f", kill_on_drop: false }`
[INFO] [stdout] 978dd723d68ff5768fb114a00826367a2fca5d2950c1a33839d36e3b6f08dd4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cce72970d0ca883ea931d28f2add4c63f94aaf90cc037a7128fbef7b5f64898
[INFO] running `Command { std: "docker" "start" "-a" "6cce72970d0ca883ea931d28f2add4c63f94aaf90cc037a7128fbef7b5f64898", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.crate-type
[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:90:13
[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:91:13
[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: 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: 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cursor.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling design-study-texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/document.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                  ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event` and `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`, and `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:46:17
[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: 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: 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:50:17
[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:51:17
[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/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 `rows` is never read
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Editor {
[INFO] [stdout]    |            ------ field in this struct
[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 `make_rows` is never used
[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: struct `RowIterator` is never constructed
[INFO] [stdout]   --> src/bin/editor/util/row.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct RowIterator {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl RowIterator {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `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 imports: `Event` and `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`, and `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 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: `available`
[INFO] [stdout]   --> src/bin/editor/editor.rs:46:17
[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: 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: 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:50:17
[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:51:17
[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/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 `rows` is never read
[INFO] [stdout]   --> src/bin/editor/editor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Editor {
[INFO] [stdout]    |            ------ field in this struct
[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 `make_rows` is never used
[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: struct `RowIterator` is never constructed
[INFO] [stdout]   --> src/bin/editor/util/row.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct RowIterator {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl RowIterator {
[INFO] [stdout]    | ---------------- associated function in this implementation
[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: `count`
[INFO] [stdout]    --> src/cursor.rs:256:17
[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/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: 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: unused variable: `node_id`
[INFO] [stdout]   --> src/document.rs:90:13
[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:91:13
[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: 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: 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: function `incremental_scan` is never used
[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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cursor.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/document.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stdout]    |                  ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "6cce72970d0ca883ea931d28f2add4c63f94aaf90cc037a7128fbef7b5f64898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cce72970d0ca883ea931d28f2add4c63f94aaf90cc037a7128fbef7b5f64898", kill_on_drop: false }`
[INFO] [stdout] 6cce72970d0ca883ea931d28f2add4c63f94aaf90cc037a7128fbef7b5f64898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 40f917ef3cf0111d5215da542209bde9055fc5a7a1f3a8038bd70e9230181606
[INFO] running `Command { std: "docker" "start" "-a" "40f917ef3cf0111d5215da542209bde9055fc5a7a1f3a8038bd70e9230181606", 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:90:13
[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:91:13
[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: 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: 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/cursor.rs:27:16
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stderr]    |                ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                |
[INFO] [stderr]    |                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn doc(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/document.rs:27:18
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<DocumentInner> {
[INFO] [stderr]    |                  ^^^^^     ------------------------------------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn inner(&self) -> std::sync::MutexGuard<'_, DocumentInner> {
[INFO] [stderr]    |                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: `design-study-texteditor` (lib) generated 11 warnings (run `cargo fix --lib -p design-study-texteditor` to apply 4 suggestions)
[INFO] [stderr] warning: unused imports: `Event` and `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`, and `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:46:17
[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: 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: 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:50:17
[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:51:17
[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/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 `rows` is never read
[INFO] [stderr]   --> src/bin/editor/editor.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Editor {
[INFO] [stderr]    |            ------ field in this struct
[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 `make_rows` is never used
[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: struct `RowIterator` is never constructed
[INFO] [stderr]   --> src/bin/editor/util/row.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct RowIterator {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/bin/editor/util/row.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl RowIterator {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] 36 |     pub fn new(cursor: Cursor, max_width: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc` and `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: unused variable: `count`
[INFO] [stderr]    --> src/cursor.rs:256:17
[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/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: 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: function `incremental_scan` is never used
[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: `design-study-texteditor` (bin "editor") generated 15 warnings (run `cargo fix --bin "editor"` to apply 6 suggestions)
[INFO] [stderr] warning: `design-study-texteditor` (test "basic") generated 1 warning (run `cargo fix --test "basic"` to apply 1 suggestion)
[INFO] [stderr] warning: `design-study-texteditor` (bin "editor" test) generated 15 warnings (15 duplicates)
[INFO] [stderr] warning: `design-study-texteditor` (lib test) generated 18 warnings (10 duplicates) (run `cargo fix --lib -p design-study-texteditor --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/design_study_texteditor-6411d7f1216ec151)
[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::basic_deletion_and_regional_projection ... ok
[INFO] [stdout] test test::multiple_deletes ... ok
[INFO] [stdout] test util::mutstr::test::slice ... ok
[INFO] [stdout] test util::mutstr::test::bad_remove - should panic ... ok
[INFO] [stdout] test util::mutstr::test::bad_insert - should panic ... ok
[INFO] [stdout] test cursor::test::limit ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- cursor::test::limit stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'cursor::test::limit' panicked at src/util/logging.rs:13:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x579506fd3eb2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x579506fd3eb2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x579506fd3eb2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x579506fd3eb2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x579506ff91c3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x579506ff91c3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x579506fd0e43 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x579506fd0e43 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x579506fd3d02 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x579506fd542c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x579506fd5282 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x579506f88b74 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x579506f88b74 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x579506fd5f0b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x579506fd5f0b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x579506fd5bda - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x579506fd43a9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x579506fd586d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x579506ff7d30 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x579506ff80a6 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x579506f44884 - core::result::Result<T,E>::unwrap::h568e0e42616c702f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x579506f44884 - design_study_texteditor::util::logging::init_logging::mkwriter::haedcaeb19922efa5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/util/logging.rs:13:14
[INFO] [stdout]   22:     0x579506f44884 - core::ops::function::Fn::call::h92b6118439127e69
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:79:5
[INFO] [stdout]   23:     0x579506f44884 - <F as tracing_subscriber::fmt::writer::MakeWriter>::make_writer::he41cc8c5e121e31b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/fmt/writer.rs:53:9
[INFO] [stdout]   24:     0x579506f44884 - <tracing_subscriber::fmt::fmt_layer::Layer<S,N,E,W> as tracing_subscriber::layer::Layer<S>>::on_event::{{closure}}::hce1436d3ff86a894
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/fmt/fmt_layer.rs:707:51
[INFO] [stdout]   25:     0x579506f44884 - std::thread::local::LocalKey<T>::try_with::hfde36262a1826a5c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/local.rs:315:12
[INFO] [stdout]   26:     0x579506f44884 - std::thread::local::LocalKey<T>::with::hed43a72a09820f45
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/local.rs:279:20
[INFO] [stdout]   27:     0x579506f42d3d - <tracing_subscriber::fmt::fmt_layer::Layer<S,N,E,W> as tracing_subscriber::layer::Layer<S>>::on_event::h6af57e28f28e0eaf
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/fmt/fmt_layer.rs:690:13
[INFO] [stdout]   28:     0x579506f42d3d - <tracing_subscriber::layer::Layered<L,S> as tracing_core::subscriber::Subscriber>::event::h9b49eb785c302c50
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/layer.rs:651:20
[INFO] [stdout]   29:     0x579506f42d3d - <tracing_subscriber::layer::Layered<L,S> as tracing_core::subscriber::Subscriber>::event::h3fa81e3b0fed9928
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/layer.rs:650:20
[INFO] [stdout]   30:     0x579506f42d3d - <tracing_subscriber::fmt::Subscriber<N,E,F,W> as tracing_core::subscriber::Subscriber>::event::h7a3e50e75b269dbd
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.2.11/src/fmt/mod.rs:327:20
[INFO] [stdout]   31:     0x579506f43348 - tracing_core::dispatcher::Dispatch::event::h9c386bbcc4b79df8
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.14/src/dispatcher.rs:509:25
[INFO] [stdout]   32:     0x579506f43348 - tracing_core::event::Event::dispatch::{{closure}}::h4748aab1bf63273d
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.14/src/event.rs:36:21
[INFO] [stdout]   33:     0x579506f43348 - tracing_core::dispatcher::get_default::{{closure}}::h5dbabe6ab0ad05d1
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.14/src/dispatcher.rs:352:17
[INFO] [stdout]   34:     0x579506f43348 - std::thread::local::LocalKey<T>::try_with::hedbd550eb1dc8230
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/local.rs:315:12
[INFO] [stdout]   35:     0x579506f43348 - tracing_core::dispatcher::get_default::h3774caab71cef776
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.14/src/dispatcher.rs:340:10
[INFO] [stdout]   36:     0x579506f3f7bd - tracing_core::event::Event::dispatch::h7f5b0a341f06a845
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.14/src/event.rs:35:9
[INFO] [stdout]   37:     0x579506f3f7bd - design_study_texteditor::node::Node::project::h60f9f300b5c5bbcd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/node.rs:126:17
[INFO] [stdout]   38:     0x579506f4a78f - design_study_texteditor::cursor::Cursor::project_forward::{{closure}}::hf8bea0ebb02b8543
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:95:28
[INFO] [stdout]   39:     0x579506f4a78f - design_study_texteditor::cursor::Cursor::depth_first_scan::h4550815ea2a9cbe2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:172:13
[INFO] [stdout]   40:     0x579506f4a78f - design_study_texteditor::cursor::Cursor::project_forward::h4e3c8563201f0d1e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:89:14
[INFO] [stdout]   41:     0x579506f4a78f - design_study_texteditor::cursor::Cursor::rewind_and_project::hb2ed835aed4f74e6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:123:16
[INFO] [stdout]   42:     0x579506f416fc - design_study_texteditor::cursor::test::limit::h8734ddca471eee57
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:212:27
[INFO] [stdout]   43:     0x579506f4bf49 - design_study_texteditor::cursor::test::limit::{{closure}}::hd2eab02f843185a4
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cursor.rs:202:15
[INFO] [stdout]   44:     0x579506f4bf49 - core::ops::function::FnOnce::call_once::h2c200554e047c62b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x579506f8e2ab - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x579506f8e2ab - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   47:     0x579506f8d4ee - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   48:     0x579506f8d4ee - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   49:     0x579506f8d4ee - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   50:     0x579506f8d4ee - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   51:     0x579506f8d4ee - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   52:     0x579506f8d4ee - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   53:     0x579506f8d4ee - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   54:     0x579506f51094 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   55:     0x579506f51094 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   56:     0x579506f54a3a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   57:     0x579506f54a3a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   58:     0x579506f54a3a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   59:     0x579506f54a3a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   60:     0x579506f54a3a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   61:     0x579506f54a3a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   62:     0x579506f54a3a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   63:     0x579506fd8e67 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   64:     0x579506fd8e67 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   65:     0x579506fd8e67 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   66:     0x7dc606a76aa4 - <unknown>
[INFO] [stdout]   67:     0x7dc606b03a34 - clone
[INFO] [stdout]   68:                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; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "40f917ef3cf0111d5215da542209bde9055fc5a7a1f3a8038bd70e9230181606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f917ef3cf0111d5215da542209bde9055fc5a7a1f3a8038bd70e9230181606", kill_on_drop: false }`
[INFO] [stdout] 40f917ef3cf0111d5215da542209bde9055fc5a7a1f3a8038bd70e9230181606
