[INFO] cloning repository https://github.com/Holsviktor/vi-based-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Holsviktor/vi-based-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolsviktor%2Fvi-based-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolsviktor%2Fvi-based-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0dee2ff345e7a89e66f01fea511053484a13207
[INFO] checking Holsviktor/vi-based-editor against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolsviktor%2Fvi-based-editor" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Holsviktor/vi-based-editor
[INFO] finished tweaking git repo https://github.com/Holsviktor/vi-based-editor
[INFO] tweaked toml for git repo https://github.com/Holsviktor/vi-based-editor written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Holsviktor/vi-based-editor on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Holsviktor/vi-based-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f80ab151e6065cf0a3846fee6368d8a2adfda9faf96092da00d00e1375a4742
[INFO] running `Command { std: "docker" "start" "-a" "1f80ab151e6065cf0a3846fee6368d8a2adfda9faf96092da00d00e1375a4742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f80ab151e6065cf0a3846fee6368d8a2adfda9faf96092da00d00e1375a4742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f80ab151e6065cf0a3846fee6368d8a2adfda9faf96092da00d00e1375a4742", kill_on_drop: false }`
[INFO] [stdout] 1f80ab151e6065cf0a3846fee6368d8a2adfda9faf96092da00d00e1375a4742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c47030498054431f80c28a1fc07338c1192c9a13945ea1f0c380f750b073107
[INFO] running `Command { std: "docker" "start" "-a" "2c47030498054431f80c28a1fc07338c1192c9a13945ea1f0c380f750b073107", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:239:39
[INFO] [stdout]     |
[INFO] [stdout] 239 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:252:39
[INFO] [stdout]     |
[INFO] [stdout] 252 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:260:39
[INFO] [stdout]     |
[INFO] [stdout] 260 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:268:39
[INFO] [stdout]     |
[INFO] [stdout] 268 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:281:39
[INFO] [stdout]     |
[INFO] [stdout] 281 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:294:39
[INFO] [stdout]     |
[INFO] [stdout] 294 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:307:39
[INFO] [stdout]     |
[INFO] [stdout] 307 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:315:39
[INFO] [stdout]     |
[INFO] [stdout] 315 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:323:39
[INFO] [stdout]     |
[INFO] [stdout] 323 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:331:39
[INFO] [stdout]     |
[INFO] [stdout] 331 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:350:39
[INFO] [stdout]     |
[INFO] [stdout] 350 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:363:39
[INFO] [stdout]     |
[INFO] [stdout] 363 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:371:39
[INFO] [stdout]     |
[INFO] [stdout] 371 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:379:39
[INFO] [stdout]     |
[INFO] [stdout] 379 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/text.rs:391:39
[INFO] [stdout]     |
[INFO] [stdout] 391 |         assert_eq!(t.line_lengths[0], t.text.chars().count().try_into().unwrap());
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `editor` (bin "editor" test) due to 15 previous errors
[INFO] running `Command { std: "docker" "inspect" "2c47030498054431f80c28a1fc07338c1192c9a13945ea1f0c380f750b073107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c47030498054431f80c28a1fc07338c1192c9a13945ea1f0c380f750b073107", kill_on_drop: false }`
[INFO] [stdout] 2c47030498054431f80c28a1fc07338c1192c9a13945ea1f0c380f750b073107