[INFO] cloning repository https://github.com/JubrilKolade/100-days-of-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JubrilKolade/100-days-of-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJubrilKolade%2F100-days-of-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJubrilKolade%2F100-days-of-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a88892e67928288b83328c8f7f4f027eeb025520
[INFO] checking JubrilKolade/100-days-of-rust/a88892e67928288b83328c8f7f4f027eeb025520 against nightly-2024-10-25 for legacyreceiver_rename
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJubrilKolade%2F100-days-of-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JubrilKolade/100-days-of-rust on toolchain nightly-2024-10-25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JubrilKolade/100-days-of-rust
[INFO] finished tweaking git repo https://github.com/JubrilKolade/100-days-of-rust
[INFO] tweaked toml for git repo https://github.com/JubrilKolade/100-days-of-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JubrilKolade/100-days-of-rust 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" "+nightly-2024-10-25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-25" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e31a8e641187fccb604b32feba2c7b2b67a6340e5f72ddba279a36d4413de019
[INFO] running `Command { std: "docker" "start" "-a" "e31a8e641187fccb604b32feba2c7b2b67a6340e5f72ddba279a36d4413de019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31a8e641187fccb604b32feba2c7b2b67a6340e5f72ddba279a36d4413de019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31a8e641187fccb604b32feba2c7b2b67a6340e5f72ddba279a36d4413de019", kill_on_drop: false }`
[INFO] [stdout] e31a8e641187fccb604b32feba2c7b2b67a6340e5f72ddba279a36d4413de019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-25" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f59cb9bac8ada08ca8167f800500f0f52603fbc1b7946494107baa5859ca4d
[INFO] running `Command { std: "docker" "start" "-a" "12f59cb9bac8ada08ca8167f800500f0f52603fbc1b7946494107baa5859ca4d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-100 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     y = 15; // reassigns value to y
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x += 3;
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]    --> src/main.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout] 108 |      y = x;
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     y = 15; // reassigns value to y
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x += 3;
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]    --> src/main.rs:108:6
[INFO] [stdout]     |
[INFO] [stdout] 108 |      y = x;
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `define_x` is never used
[INFO] [stdout]   --> src/main.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn define_x() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `explicitly_ret_unit` is never used
[INFO] [stdout]    --> src/main.rs:270:8
[INFO] [stdout]     |
[INFO] [stdout] 270 |     fn explicitly_ret_unit() -> () {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_option` is never used
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |     fn get_option(tp: u8) -> Option<i32> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return_fn` is never used
[INFO] [stdout]    --> src/main.rs:388:8
[INFO] [stdout]     |
[INFO] [stdout] 388 |     fn never_return_fn() -> ! {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `typeOf` should have a snake case name
[INFO] [stdout]    --> src/main.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn typeOf<T>(_: &T) -> String {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `type_of`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `typeOf` should have a snake case name
[INFO] [stdout]    --> src/main.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn typeOf<T>(_: &T) -> String {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `type_of`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/main.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         2 * x;
[INFO] [stdout]     |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |         let _ = 2 * x;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sumM` should have a snake case name
[INFO] [stdout]    --> src/main.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn sumM(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^^ help: convert the identifier to snake case: `sum_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/main.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         2 * x;
[INFO] [stdout]     |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |         let _ = 2 * x;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sumM` should have a snake case name
[INFO] [stdout]    --> src/main.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn sumM(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^^ help: convert the identifier to snake case: `sum_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "12f59cb9bac8ada08ca8167f800500f0f52603fbc1b7946494107baa5859ca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f59cb9bac8ada08ca8167f800500f0f52603fbc1b7946494107baa5859ca4d", kill_on_drop: false }`
[INFO] [stdout] 12f59cb9bac8ada08ca8167f800500f0f52603fbc1b7946494107baa5859ca4d