[INFO] cloning repository https://github.com/icaruss1/kilo_my
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icaruss1/kilo_my" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficaruss1%2Fkilo_my", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficaruss1%2Fkilo_my'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d68ea16a46eb9e6c1fe99f34914be9105639b0ca
[INFO] checking icaruss1/kilo_my against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficaruss1%2Fkilo_my" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icaruss1/kilo_my on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icaruss1/kilo_my
[INFO] finished tweaking git repo https://github.com/icaruss1/kilo_my
[INFO] tweaked toml for git repo https://github.com/icaruss1/kilo_my written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/icaruss1/kilo_my 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a432735d5986d32a40237f1d07108b75e49d9659dde54a3885809b0f4e4f515f
[INFO] running `Command { std: "docker" "start" "-a" "a432735d5986d32a40237f1d07108b75e49d9659dde54a3885809b0f4e4f515f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a432735d5986d32a40237f1d07108b75e49d9659dde54a3885809b0f4e4f515f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a432735d5986d32a40237f1d07108b75e49d9659dde54a3885809b0f4e4f515f", kill_on_drop: false }`
[INFO] [stdout] a432735d5986d32a40237f1d07108b75e49d9659dde54a3885809b0f4e4f515f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6262a79623adf28f1b7555479d87be03a0b680fe10be299b76c86c57e4259a9d
[INFO] running `Command { std: "docker" "start" "-a" "6262a79623adf28f1b7555479d87be03a0b680fe10be299b76c86c57e4259a9d", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking kilo_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/document.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/document.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_rows` and `close_document` are never used
[INFO] [stdout]   --> src/document.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Document {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn read_rows(&mut self) -> Result<String, Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn close_document(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_pos` is never read
[INFO] [stdout]   --> src/terminal.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_pos: (u16, u16), // pos on screen, can be u16
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gcursor_pos` is never used
[INFO] [stdout]   --> src/terminal.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Terminal {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn gcursor_pos(&mut self) -> Result<(u16, u16), std::io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_rows` and `close_document` are never used
[INFO] [stdout]   --> src/document.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Document {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn read_rows(&mut self) -> Result<String, Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn close_document(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_pos` is never read
[INFO] [stdout]   --> src/terminal.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_pos: (u16, u16), // pos on screen, can be u16
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gcursor_pos` is never used
[INFO] [stdout]   --> src/terminal.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Terminal {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn gcursor_pos(&mut self) -> Result<(u16, u16), std::io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/document.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         doc.open_file("./src/test_file.txt");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = doc.open_file("./src/test_file.txt");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/document.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         doc.open_file("./src/editor.rs");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let _ = doc.open_file("./src/editor.rs");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "6262a79623adf28f1b7555479d87be03a0b680fe10be299b76c86c57e4259a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6262a79623adf28f1b7555479d87be03a0b680fe10be299b76c86c57e4259a9d", kill_on_drop: false }`
[INFO] [stdout] 6262a79623adf28f1b7555479d87be03a0b680fe10be299b76c86c57e4259a9d
[INFO] checking icaruss1/kilo_my against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficaruss1%2Fkilo_my" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icaruss1/kilo_my on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icaruss1/kilo_my
[INFO] finished tweaking git repo https://github.com/icaruss1/kilo_my
[INFO] tweaked toml for git repo https://github.com/icaruss1/kilo_my written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/icaruss1/kilo_my 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a562a93910ea05bf095b51e51ea89043775cb57f85ecc4cc968eb8994a883e32
[INFO] running `Command { std: "docker" "start" "-a" "a562a93910ea05bf095b51e51ea89043775cb57f85ecc4cc968eb8994a883e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a562a93910ea05bf095b51e51ea89043775cb57f85ecc4cc968eb8994a883e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a562a93910ea05bf095b51e51ea89043775cb57f85ecc4cc968eb8994a883e32", kill_on_drop: false }`
[INFO] [stdout] a562a93910ea05bf095b51e51ea89043775cb57f85ecc4cc968eb8994a883e32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e781aaf5860035bdcadc34852ebb4c7a548ab08d3936ec55f34f271ac446cac
[INFO] running `Command { std: "docker" "start" "-a" "1e781aaf5860035bdcadc34852ebb4c7a548ab08d3936ec55f34f271ac446cac", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking kilo_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/document.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ErrorKind`
[INFO] [stdout]  --> src/document.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Error, ErrorKind};
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_rows` and `close_document` are never used
[INFO] [stdout]   --> src/document.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Document {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn read_rows(&mut self) -> Result<String, Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn close_document(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_pos` is never read
[INFO] [stdout]   --> src/terminal.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_pos: (u16, u16), // pos on screen, can be u16
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gcursor_pos` is never used
[INFO] [stdout]   --> src/terminal.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Terminal {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn gcursor_pos(&mut self) -> Result<(u16, u16), std::io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_rows` and `close_document` are never used
[INFO] [stdout]   --> src/document.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Document {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn read_rows(&mut self) -> Result<String, Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn close_document(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_pos` is never read
[INFO] [stdout]   --> src/terminal.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_pos: (u16, u16), // pos on screen, can be u16
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `gcursor_pos` is never used
[INFO] [stdout]   --> src/terminal.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Terminal {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn gcursor_pos(&mut self) -> Result<(u16, u16), std::io::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/document.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         doc.open_file("./src/test_file.txt");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = doc.open_file("./src/test_file.txt");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/document.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         doc.open_file("./src/editor.rs");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let _ = doc.open_file("./src/editor.rs");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "1e781aaf5860035bdcadc34852ebb4c7a548ab08d3936ec55f34f271ac446cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e781aaf5860035bdcadc34852ebb4c7a548ab08d3936ec55f34f271ac446cac", kill_on_drop: false }`
[INFO] [stdout] 1e781aaf5860035bdcadc34852ebb4c7a548ab08d3936ec55f34f271ac446cac