[INFO] cloning repository https://github.com/Aletheaaa1/text_editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aletheaaa1/text_editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAletheaaa1%2Ftext_editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAletheaaa1%2Ftext_editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e644f710faafaa8518d9412b39237d0177c3e8a5
[INFO] checking Aletheaaa1/text_editor against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAletheaaa1%2Ftext_editor" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aletheaaa1/text_editor 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/Aletheaaa1/text_editor
[INFO] finished tweaking git repo https://github.com/Aletheaaa1/text_editor
[INFO] tweaked toml for git repo https://github.com/Aletheaaa1/text_editor written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Aletheaaa1/text_editor 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1c415db56f0926b295cb43dcc47cc7a286ccf7a841d1d7e2399f0dc7b1aeb4d7
[INFO] running `Command { std: "docker" "start" "-a" "1c415db56f0926b295cb43dcc47cc7a286ccf7a841d1d7e2399f0dc7b1aeb4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c415db56f0926b295cb43dcc47cc7a286ccf7a841d1d7e2399f0dc7b1aeb4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c415db56f0926b295cb43dcc47cc7a286ccf7a841d1d7e2399f0dc7b1aeb4d7", kill_on_drop: false }`
[INFO] [stdout] 1c415db56f0926b295cb43dcc47cc7a286ccf7a841d1d7e2399f0dc7b1aeb4d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 502090e49cce1e48c6f3c93218544fe8dc9328100296075eb9f6f85cb172927c
[INFO] running `Command { std: "docker" "start" "-a" "502090e49cce1e48c6f3c93218544fe8dc9328100296075eb9f6f85cb172927c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking text_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `termion` is imported redundantly
[INFO] [stdout]  --> src/terminal.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termion::{self, event::Key};
[INFO] [stdout]   |               ^^^^ the item `termion` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `termion` is imported redundantly
[INFO] [stdout]  --> src/terminal.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termion::{self, event::Key};
[INFO] [stdout]   |               ^^^^ the item `termion` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/terminal.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[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/terminal.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[INFO] [stdout]    |                               ----^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `out` is never read
[INFO] [stdout]   --> src/terminal.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     size: Size,
[INFO] [stdout] 18 |     out: RawTerminal<std::io::Stdout>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/terminal.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[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/terminal.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[INFO] [stdout]    |                               ----^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `out` is never read
[INFO] [stdout]   --> src/terminal.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     size: Size,
[INFO] [stdout] 18 |     out: RawTerminal<std::io::Stdout>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "502090e49cce1e48c6f3c93218544fe8dc9328100296075eb9f6f85cb172927c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "502090e49cce1e48c6f3c93218544fe8dc9328100296075eb9f6f85cb172927c", kill_on_drop: false }`
[INFO] [stdout] 502090e49cce1e48c6f3c93218544fe8dc9328100296075eb9f6f85cb172927c
[INFO] checking Aletheaaa1/text_editor against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAletheaaa1%2Ftext_editor" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aletheaaa1/text_editor 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/Aletheaaa1/text_editor
[INFO] finished tweaking git repo https://github.com/Aletheaaa1/text_editor
[INFO] tweaked toml for git repo https://github.com/Aletheaaa1/text_editor written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Aletheaaa1/text_editor 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06832ca3922140b1cb5fcb4e7affeccf3b31d2a44fef5eee2350ee18d24b7a27
[INFO] running `Command { std: "docker" "start" "-a" "06832ca3922140b1cb5fcb4e7affeccf3b31d2a44fef5eee2350ee18d24b7a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06832ca3922140b1cb5fcb4e7affeccf3b31d2a44fef5eee2350ee18d24b7a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06832ca3922140b1cb5fcb4e7affeccf3b31d2a44fef5eee2350ee18d24b7a27", kill_on_drop: false }`
[INFO] [stdout] 06832ca3922140b1cb5fcb4e7affeccf3b31d2a44fef5eee2350ee18d24b7a27
[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" "-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] aa6387abc690b32dcbe3f7cbd5409fb22d9a4a51c3211b5eccf73a74152d566d
[INFO] running `Command { std: "docker" "start" "-a" "aa6387abc690b32dcbe3f7cbd5409fb22d9a4a51c3211b5eccf73a74152d566d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking text_editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `termion` is imported redundantly
[INFO] [stdout]  --> src/terminal.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termion::{self, event::Key};
[INFO] [stdout]   |               ^^^^ the item `termion` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `termion` is imported redundantly
[INFO] [stdout]  --> src/terminal.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termion::{self, event::Key};
[INFO] [stdout]   |               ^^^^ the item `termion` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/terminal.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[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/terminal.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[INFO] [stdout]    |                               ----^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `out` is never read
[INFO] [stdout]   --> src/terminal.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     size: Size,
[INFO] [stdout] 18 |     out: RawTerminal<std::io::Stdout>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/terminal.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[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/terminal.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let Position { mut x, mut y } = position;
[INFO] [stdout]    |                               ----^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `out` is never read
[INFO] [stdout]   --> src/terminal.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Terminal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 17 |     size: Size,
[INFO] [stdout] 18 |     out: RawTerminal<std::io::Stdout>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "aa6387abc690b32dcbe3f7cbd5409fb22d9a4a51c3211b5eccf73a74152d566d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6387abc690b32dcbe3f7cbd5409fb22d9a4a51c3211b5eccf73a74152d566d", kill_on_drop: false }`
[INFO] [stdout] aa6387abc690b32dcbe3f7cbd5409fb22d9a4a51c3211b5eccf73a74152d566d