[INFO] cloning repository https://github.com/riveSunder/clica
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/riveSunder/clica" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FriveSunder%2Fclica", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FriveSunder%2Fclica'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 465419821c46592b27afe4730dabc13b4a3f0169
[INFO] checking riveSunder/clica against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FriveSunder%2Fclica" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/riveSunder/clica
[INFO] finished tweaking git repo https://github.com/riveSunder/clica
[INFO] tweaked toml for git repo https://github.com/riveSunder/clica written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/riveSunder/clica on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/riveSunder/clica 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db
[INFO] running `Command { std: "docker" "start" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking clica v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `l_idx` is never read
[INFO] [stdout]   --> src/main.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut l_idx: usize = 0;
[INFO] [stdout]    |                            ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 62 |             l_idx = idx - 1;
[INFO] [stdout]    |             --------------- `l_idx` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r_idx` is never read
[INFO] [stdout]   --> src/main.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut r_idx: usize = 0;
[INFO] [stdout]    |                            ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 68 |             r_idx = idx + 1;
[INFO] [stdout]    |             --------------- `r_idx` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `l_idx` is never read
[INFO] [stdout]   --> src/main.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut l_idx: usize = 0;
[INFO] [stdout]    |                            ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 62 |             l_idx = idx - 1;
[INFO] [stdout]    |             --------------- `l_idx` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r_idx` is never read
[INFO] [stdout]   --> src/main.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut r_idx: usize = 0;
[INFO] [stdout]    |                            ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 68 |             r_idx = idx + 1;
[INFO] [stdout]    |             --------------- `r_idx` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_step`
[INFO] [stdout]    --> src/main.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     for my_step in 0..steps {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_step`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_step`
[INFO] [stdout]    --> src/main.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     for my_step in 0..steps {
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_step`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/main.rs:55:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let idx: usize = my_idx.into();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 55 -         let idx: usize = my_idx.into();
[INFO] [stdout] 55 +         let idx: usize = my_idx;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 55 -         let idx: usize = my_idx.into();
[INFO] [stdout] 55 +         let idx: usize = <usize as Into<_>>::into(my_idx);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/main.rs:253:38
[INFO] [stdout]     |
[INFO] [stdout] 253 |     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 253 -     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout] 253 +     let mut world: Vec<u8> = vec![0; world_size];
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 253 -     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout] 253 +     let mut world: Vec<u8> = vec![0; <usize as Into<_>>::into(world_size)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/main.rs:254:30
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 254 -     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout] 254 +     let halfway_idx: usize = (world_size / 2);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 254 -     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout] 254 +     let halfway_idx: usize = <usize as Into<_>>::into((world_size / 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]   --> src/main.rs:55:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let idx: usize = my_idx.into();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 55 -         let idx: usize = my_idx.into();
[INFO] [stdout] 55 +         let idx: usize = my_idx;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 55 -         let idx: usize = my_idx.into();
[INFO] [stdout] 55 +         let idx: usize = <usize as Into<_>>::into(my_idx);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/main.rs:253:38
[INFO] [stdout]     |
[INFO] [stdout] 253 |     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 253 -     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout] 253 +     let mut world: Vec<u8> = vec![0; world_size];
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 253 -     let mut world: Vec<u8> = vec![0; world_size.into()];
[INFO] [stdout] 253 +     let mut world: Vec<u8> = vec![0; <usize as Into<_>>::into(world_size)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/main.rs:254:30
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 254 -     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout] 254 +     let halfway_idx: usize = (world_size / 2);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 254 -     let halfway_idx: usize = (world_size / 2).into();
[INFO] [stdout] 254 +     let halfway_idx: usize = <usize as Into<_>>::into((world_size / 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `clica` (bin "clica" test) due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `clica` (bin "clica") due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db", kill_on_drop: false }`
[INFO] [stdout] e3e6d9ca7ba7bde69301b7718c6574c9c2b212cf19bc65a72492864c253a04db
