Oct 12 21:20:18.991 INFO checking g-jackson/rust-learning against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 21:20:18.991 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 21:20:19.348 INFO blam! 0b0a2ba0fc33569030deddc03aa765bf7dcc9c6ee6796a080cd8f34be7cbb7a2
Oct 12 21:20:19.360 INFO running `"docker" "start" "-a" "0b0a2ba0fc33569030deddc03aa765bf7dcc9c6ee6796a080cd8f34be7cbb7a2"`
Oct 12 21:20:20.516 INFO kablam! usermod: no changes
Oct 12 21:20:20.599 INFO kablam!     Checking hello-world v1.1.0 (/source/exercism/hello-world)
Oct 12 21:20:20.600 INFO kablam!     Checking enums v0.1.0 (/source/enums)
Oct 12 21:20:20.600 INFO kablam!     Checking ownership v0.1.0 (/source/ownership)
Oct 12 21:20:20.600 INFO kablam!     Checking hello_cargo v0.1.0 (/source/hello_cargo)
Oct 12 21:20:20.606 INFO kablam!     Checking branches v0.1.0 (/source/branches)
Oct 12 21:20:21.536 INFO kablam! warning: unused variable: `four`
Oct 12 21:20:21.537 INFO kablam!  --> enums/src/main.rs:2:9
Oct 12 21:20:21.537 INFO kablam!   |
Oct 12 21:20:21.537 INFO kablam! 2 |     let four = IpAddrKind::V4;
Oct 12 21:20:21.538 INFO kablam!   |         ^^^^ help: consider using `_four` instead
Oct 12 21:20:21.538 INFO kablam!   |
Oct 12 21:20:21.538 INFO kablam!   = note: #[warn(unused_variables)] on by default
Oct 12 21:20:21.538 INFO kablam! 
Oct 12 21:20:21.539 INFO kablam! warning: unused variable: `six`
Oct 12 21:20:21.539 INFO kablam!  --> enums/src/main.rs:3:9
Oct 12 21:20:21.539 INFO kablam!   |
Oct 12 21:20:21.539 INFO kablam! 3 |     let six = IpAddrKind::V6;
Oct 12 21:20:21.540 INFO kablam!   |         ^^^ help: consider using `_six` instead
Oct 12 21:20:21.540 INFO kablam! 
Oct 12 21:20:21.540 INFO kablam! warning: unused variable: `home`
Oct 12 21:20:21.540 INFO kablam!   --> enums/src/main.rs:17:9
Oct 12 21:20:21.541 INFO kablam!    |
Oct 12 21:20:21.541 INFO kablam! 17 |     let home = IpAddr::V4(String::from("127.0.0.1"));
Oct 12 21:20:21.541 INFO kablam!    |         ^^^^ help: consider using `_home` instead
Oct 12 21:20:21.541 INFO kablam! 
Oct 12 21:20:21.542 INFO kablam! warning: unused variable: `loopback`
Oct 12 21:20:21.542 INFO kablam!   --> enums/src/main.rs:18:9
Oct 12 21:20:21.542 INFO kablam!    |
Oct 12 21:20:21.542 INFO kablam! 18 |     let loopback = IpAddr::V6(String::from("::1"));
Oct 12 21:20:21.543 INFO kablam!    |         ^^^^^^^^ help: consider using `_loopback` instead
Oct 12 21:20:21.543 INFO kablam! 
Oct 12 21:20:21.543 INFO kablam! warning: enum is never used: `Message`
Oct 12 21:20:21.543 INFO kablam!   --> enums/src/main.rs:21:1
Oct 12 21:20:21.544 INFO kablam!    |
Oct 12 21:20:21.544 INFO kablam! 21 | enum Message {
Oct 12 21:20:21.544 INFO kablam!    | ^^^^^^^^^^^^
Oct 12 21:20:21.544 INFO kablam!    |
Oct 12 21:20:21.545 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 21:20:21.545 INFO kablam! 
Oct 12 21:20:21.741 INFO kablam!     Checking functions v0.1.0 (/source/functions)
Oct 12 21:20:22.444 INFO kablam! warning: unused variable: `four`
Oct 12 21:20:22.444 INFO kablam!  --> enums/src/main.rs:2:9
Oct 12 21:20:22.444 INFO kablam!   |
Oct 12 21:20:22.444 INFO kablam! 2 |     let four = IpAddrKind::V4;
Oct 12 21:20:22.444 INFO kablam!   |         ^^^^ help: consider using `_four` instead
Oct 12 21:20:22.444 INFO kablam!   |
Oct 12 21:20:22.444 INFO kablam!   = note: #[warn(unused_variables)] on by default
Oct 12 21:20:22.444 INFO kablam! 
Oct 12 21:20:22.444 INFO kablam! warning: unused variable: `six`
Oct 12 21:20:22.444 INFO kablam!  --> enums/src/main.rs:3:9
Oct 12 21:20:22.444 INFO kablam!   |
Oct 12 21:20:22.444 INFO kablam! 3 |     let six = IpAddrKind::V6;
Oct 12 21:20:22.444 INFO kablam!   |         ^^^ help: consider using `_six` instead
Oct 12 21:20:22.444 INFO kablam! 
Oct 12 21:20:22.444 INFO kablam! warning: unused variable: `home`
Oct 12 21:20:22.444 INFO kablam!   --> enums/src/main.rs:17:9
Oct 12 21:20:22.444 INFO kablam!    |
Oct 12 21:20:22.444 INFO kablam! 17 |     let home = IpAddr::V4(String::from("127.0.0.1"));
Oct 12 21:20:22.444 INFO kablam!    |         ^^^^ help: consider using `_home` instead
Oct 12 21:20:22.444 INFO kablam! 
Oct 12 21:20:22.444 INFO kablam! warning: unused variable: `loopback`
Oct 12 21:20:22.444 INFO kablam!   --> enums/src/main.rs:18:9
Oct 12 21:20:22.444 INFO kablam!    |
Oct 12 21:20:22.444 INFO kablam! 18 |     let loopback = IpAddr::V6(String::from("::1"));
Oct 12 21:20:22.444 INFO kablam!    |         ^^^^^^^^ help: consider using `_loopback` instead
Oct 12 21:20:22.444 INFO kablam! 
Oct 12 21:20:22.460 INFO kablam! warning: enum is never used: `Message`
Oct 12 21:20:22.460 INFO kablam!   --> enums/src/main.rs:21:1
Oct 12 21:20:22.460 INFO kablam!    |
Oct 12 21:20:22.460 INFO kablam! 21 | enum Message {
Oct 12 21:20:22.460 INFO kablam!    | ^^^^^^^^^^^^
Oct 12 21:20:22.460 INFO kablam!    |
Oct 12 21:20:22.460 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 21:20:22.460 INFO kablam! 
Oct 12 21:20:22.520 INFO kablam!     Checking variables v0.1.0 (/source/variables)
Oct 12 21:20:22.952 INFO kablam!     Checking structs v0.1.0 (/source/structs)
Oct 12 21:20:23.849 INFO kablam!     Checking guessing_game v0.1.0 (/source/guessing_game)
Oct 12 21:20:26.273 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.73s
Oct 12 21:20:26.285 INFO kablam! su: No module specific data is present
Oct 12 21:20:27.211 INFO running `"docker" "rm" "-f" "0b0a2ba0fc33569030deddc03aa765bf7dcc9c6ee6796a080cd8f34be7cbb7a2"`
Oct 12 21:20:27.576 INFO blam! 0b0a2ba0fc33569030deddc03aa765bf7dcc9c6ee6796a080cd8f34be7cbb7a2