[INFO] cloning repository https://github.com/Illuminate-dev/fer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Illuminate-dev/fer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIlluminate-dev%2Ffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIlluminate-dev%2Ffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e65807574b6a971b06af4ebbd53f9f37f2986aa2
[INFO] checking Illuminate-dev/fer against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIlluminate-dev%2Ffer" "/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/Illuminate-dev/fer 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/Illuminate-dev/fer
[INFO] finished tweaking git repo https://github.com/Illuminate-dev/fer
[INFO] tweaked toml for git repo https://github.com/Illuminate-dev/fer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Illuminate-dev/fer 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] 82574ca393c76a13997711957049a23862d1239d547209bfd8646d1176579462
[INFO] running `Command { std: "docker" "start" "-a" "82574ca393c76a13997711957049a23862d1239d547209bfd8646d1176579462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82574ca393c76a13997711957049a23862d1239d547209bfd8646d1176579462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82574ca393c76a13997711957049a23862d1239d547209bfd8646d1176579462", kill_on_drop: false }`
[INFO] [stdout] 82574ca393c76a13997711957049a23862d1239d547209bfd8646d1176579462
[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] 834f3a7e2980ee98e0d133a4dcc6398446ed9393d0d51e18cd13e4c649f88ed3
[INFO] running `Command { std: "docker" "start" "-a" "834f3a7e2980ee98e0d133a4dcc6398446ed9393d0d51e18cd13e4c649f88ed3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking anstream v0.6.11
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking clap_builder v4.4.18
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking clap v4.4.18
[INFO] [stderr]     Checking fer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/cursor.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         mode: Mode,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_extension` is never used
[INFO] [stdout]   --> src/app.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 21 |     /// # of spaces to allow cursor to go to after line
[INFO] [stdout] 22 |     pub fn get_extension(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/cursor.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         mode: Mode,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_extension` is never used
[INFO] [stdout]   --> src/app.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 21 |     /// # of spaces to allow cursor to go to after line
[INFO] [stdout] 22 |     pub fn get_extension(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.37s
[INFO] running `Command { std: "docker" "inspect" "834f3a7e2980ee98e0d133a4dcc6398446ed9393d0d51e18cd13e4c649f88ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834f3a7e2980ee98e0d133a4dcc6398446ed9393d0d51e18cd13e4c649f88ed3", kill_on_drop: false }`
[INFO] [stdout] 834f3a7e2980ee98e0d133a4dcc6398446ed9393d0d51e18cd13e4c649f88ed3
[INFO] checking Illuminate-dev/fer against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIlluminate-dev%2Ffer" "/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/Illuminate-dev/fer on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Illuminate-dev/fer
[INFO] finished tweaking git repo https://github.com/Illuminate-dev/fer
[INFO] tweaked toml for git repo https://github.com/Illuminate-dev/fer written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Illuminate-dev/fer 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a57659ef7c2f96d4cfe6aa6ebc95fb42df653de03eca7caf2c0351b4b4a3a81f
[INFO] running `Command { std: "docker" "start" "-a" "a57659ef7c2f96d4cfe6aa6ebc95fb42df653de03eca7caf2c0351b4b4a3a81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a57659ef7c2f96d4cfe6aa6ebc95fb42df653de03eca7caf2c0351b4b4a3a81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a57659ef7c2f96d4cfe6aa6ebc95fb42df653de03eca7caf2c0351b4b4a3a81f", kill_on_drop: false }`
[INFO] [stdout] a57659ef7c2f96d4cfe6aa6ebc95fb42df653de03eca7caf2c0351b4b4a3a81f
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74dbf21902e40280a7f51bcfe44e79d120eea9f41214d3ad47c2a46143bb5fd2
[INFO] running `Command { std: "docker" "start" "-a" "74dbf21902e40280a7f51bcfe44e79d120eea9f41214d3ad47c2a46143bb5fd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking anstream v0.6.11
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking clap_builder v4.4.18
[INFO] [stderr]     Checking termion v3.0.0
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking clap v4.4.18
[INFO] [stderr]     Checking fer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/cursor.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         mode: Mode,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/cursor.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         mode: Mode,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_extension` is never used
[INFO] [stdout]   --> src/app.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 21 |     /// # of spaces to allow cursor to go to after line
[INFO] [stdout] 22 |     pub fn get_extension(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_extension` is never used
[INFO] [stdout]   --> src/app.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Mode {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 21 |     /// # of spaces to allow cursor to go to after line
[INFO] [stdout] 22 |     pub fn get_extension(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "74dbf21902e40280a7f51bcfe44e79d120eea9f41214d3ad47c2a46143bb5fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74dbf21902e40280a7f51bcfe44e79d120eea9f41214d3ad47c2a46143bb5fd2", kill_on_drop: false }`
[INFO] [stdout] 74dbf21902e40280a7f51bcfe44e79d120eea9f41214d3ad47c2a46143bb5fd2