[INFO] cloning repository https://github.com/JRBros2346/strings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JRBros2346/strings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJRBros2346%2Fstrings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJRBros2346%2Fstrings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6319bd7d081f2d1eb50cba887af1a89cabd63343
[INFO] checking JRBros2346/strings against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJRBros2346%2Fstrings" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JRBros2346/strings on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JRBros2346/strings
[INFO] finished tweaking git repo https://github.com/JRBros2346/strings
[INFO] tweaked toml for git repo https://github.com/JRBros2346/strings written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JRBros2346/strings 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.1.8
[INFO] [stderr]   Downloaded vulkano-macros v0.34.0
[INFO] [stderr]   Downloaded colored v2.1.0
[INFO] [stderr]   Downloaded libloading v0.8.3
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[INFO] [stderr]   Downloaded vulkano v0.34.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6602e08f23e094cf97d79d58607e017a63d8c2220789dbb2c41df485c43fb6f0
[INFO] running `Command { std: "docker" "start" "-a" "6602e08f23e094cf97d79d58607e017a63d8c2220789dbb2c41df485c43fb6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6602e08f23e094cf97d79d58607e017a63d8c2220789dbb2c41df485c43fb6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6602e08f23e094cf97d79d58607e017a63d8c2220789dbb2c41df485c43fb6f0", kill_on_drop: false }`
[INFO] [stdout] 6602e08f23e094cf97d79d58607e017a63d8c2220789dbb2c41df485c43fb6f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a607897e39b4e7a5947a37a8b01f7804bddd58a228ddd86592db791cffd0475
[INFO] running `Command { std: "docker" "start" "-a" "3a607897e39b4e7a5947a37a8b01f7804bddd58a228ddd86592db791cffd0475", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling zerocopy v0.7.32
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling ash v0.37.3+1.3.251
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking thread_local v1.1.8
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[INFO] [stderr]    Compiling aho-corasick v1.1.3
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[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling vk-parse v0.12.0
[INFO] [stderr]    Compiling strings-entry v0.1.0 (/opt/rustwide/workdir/strings-entry)
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling bytemuck_derive v1.6.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling vulkano-macros v0.34.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking x11rb v0.13.0
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling vulkano v0.34.1
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/platform/linux.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/platform/linux.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close` is never used
[INFO] [stdout]   --> src/core/log.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub(crate) fn close() {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `suspended` and `last_time` are never read
[INFO] [stdout]   --> src/core/app.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     suspended: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     last_time: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close` is never used
[INFO] [stdout]   --> src/core/log.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub(crate) fn close() {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `suspended` and `last_time` are never read
[INFO] [stdout]   --> src/core/app.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     suspended: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     last_time: f64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/core/app.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         crate::core::log::init();
[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] 45 |         let _ = crate::core::log::init();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/core/app.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         crate::core::log::init();
[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] 45 |         let _ = crate::core::log::init();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta_time`
[INFO] [stdout]  --> src/bin/test.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn update(&mut self, delta_time: f64) -> Result<(), String> {
[INFO] [stdout]   |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta_time`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta_time`
[INFO] [stdout]   --> src/bin/test.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn render(&self, delta_time: f64) -> Result<(), String> {
[INFO] [stdout]    |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/bin/test.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn on_resize(&mut self, width: u32, height: u32) {}
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/bin/test.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn on_resize(&mut self, width: u32, height: u32) {}
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta_time`
[INFO] [stdout]  --> src/bin/test.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn update(&mut self, delta_time: f64) -> Result<(), String> {
[INFO] [stdout]   |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta_time`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta_time`
[INFO] [stdout]   --> src/bin/test.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn render(&self, delta_time: f64) -> Result<(), String> {
[INFO] [stdout]    |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/bin/test.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn on_resize(&mut self, width: u32, height: u32) {}
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/bin/test.rs:15:41
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn on_resize(&mut self, width: u32, height: u32) {}
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.35s
[INFO] running `Command { std: "docker" "inspect" "3a607897e39b4e7a5947a37a8b01f7804bddd58a228ddd86592db791cffd0475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a607897e39b4e7a5947a37a8b01f7804bddd58a228ddd86592db791cffd0475", kill_on_drop: false }`
[INFO] [stdout] 3a607897e39b4e7a5947a37a8b01f7804bddd58a228ddd86592db791cffd0475