Oct 13 03:07:48.965 INFO checking PaulJuliusMartinez/CoolRustCompiler against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 03:07:48.965 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/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 13 03:07:49.231 INFO blam! 6230e08445458393d3e0d0f3bea541b5005b73fcf5ca82929c7fb8a0f5f7130e
Oct 13 03:07:49.241 INFO running `"docker" "start" "-a" "6230e08445458393d3e0d0f3bea541b5005b73fcf5ca82929c7fb8a0f5f7130e"`
Oct 13 03:07:50.036 INFO kablam! usermod: no changes
Oct 13 03:07:50.067 INFO kablam!     Checking cool v0.1.0 (/source)
Oct 13 03:07:50.634 INFO kablam! warning: unused import: `std::rc::Rc`
Oct 13 03:07:50.634 INFO kablam!  --> src/main.rs:3:5
Oct 13 03:07:50.634 INFO kablam!   |
Oct 13 03:07:50.634 INFO kablam! 3 | use std::rc::Rc;
Oct 13 03:07:50.634 INFO kablam!   |     ^^^^^^^^^^^
Oct 13 03:07:50.634 INFO kablam!   |
Oct 13 03:07:50.634 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:07:50.634 INFO kablam! 
Oct 13 03:07:50.634 INFO kablam! warning: unused import: `std::boxed::Box`
Oct 13 03:07:50.635 INFO kablam!  --> src/main.rs:4:5
Oct 13 03:07:50.635 INFO kablam!   |
Oct 13 03:07:50.635 INFO kablam! 4 | use std::boxed::Box;
Oct 13 03:07:50.635 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 13 03:07:50.635 INFO kablam! 
Oct 13 03:07:50.635 INFO kablam! warning: unused import: `ast::*`
Oct 13 03:07:50.635 INFO kablam!  --> src/main.rs:6:5
Oct 13 03:07:50.635 INFO kablam!   |
Oct 13 03:07:50.635 INFO kablam! 6 | use ast::*;
Oct 13 03:07:50.635 INFO kablam!   |     ^^^^^^
Oct 13 03:07:50.635 INFO kablam! 
Oct 13 03:07:50.635 INFO kablam! warning: unused macro definition
Oct 13 03:07:50.635 INFO kablam!   --> src/parser/mod.rs:53:1
Oct 13 03:07:50.635 INFO kablam!    |
Oct 13 03:07:50.635 INFO kablam! 53 | / macro_rules! match_single_capture {
Oct 13 03:07:50.635 INFO kablam! 54 | |     ($tok:expr, $expected:pat, $states:ident, $new_state:expr, $body:stmt) => {{
Oct 13 03:07:50.635 INFO kablam! 55 | |         match *$tok {
Oct 13 03:07:50.635 INFO kablam! 56 | |             $expected => {
Oct 13 03:07:50.635 INFO kablam! ...  |
Oct 13 03:07:50.635 INFO kablam! 65 | |     }}
Oct 13 03:07:50.635 INFO kablam! 66 | | }
Oct 13 03:07:50.635 INFO kablam!    | |_^
Oct 13 03:07:50.635 INFO kablam!    |
Oct 13 03:07:50.635 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 13 03:07:50.635 INFO kablam! 
Oct 13 03:07:50.820 INFO kablam! warning: unused import: `std::rc::Rc`
Oct 13 03:07:50.820 INFO kablam!  --> src/main.rs:3:5
Oct 13 03:07:50.820 INFO kablam!   |
Oct 13 03:07:50.820 INFO kablam! 3 | use std::rc::Rc;
Oct 13 03:07:50.820 INFO kablam!   |     ^^^^^^^^^^^
Oct 13 03:07:50.820 INFO kablam!   |
Oct 13 03:07:50.820 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:07:50.820 INFO kablam! 
Oct 13 03:07:50.820 INFO kablam! warning: unused import: `std::boxed::Box`
Oct 13 03:07:50.820 INFO kablam!  --> src/main.rs:4:5
Oct 13 03:07:50.820 INFO kablam!   |
Oct 13 03:07:50.820 INFO kablam! 4 | use std::boxed::Box;
Oct 13 03:07:50.820 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 13 03:07:50.820 INFO kablam! 
Oct 13 03:07:50.820 INFO kablam! warning: unused import: `ast::*`
Oct 13 03:07:50.820 INFO kablam!  --> src/main.rs:6:5
Oct 13 03:07:50.820 INFO kablam!   |
Oct 13 03:07:50.820 INFO kablam! 6 | use ast::*;
Oct 13 03:07:50.820 INFO kablam!   |     ^^^^^^
Oct 13 03:07:50.820 INFO kablam! 
Oct 13 03:07:50.820 INFO kablam! warning: unused macro definition
Oct 13 03:07:50.820 INFO kablam!   --> src/parser/mod.rs:53:1
Oct 13 03:07:50.821 INFO kablam!    |
Oct 13 03:07:50.821 INFO kablam! 53 | / macro_rules! match_single_capture {
Oct 13 03:07:50.821 INFO kablam! 54 | |     ($tok:expr, $expected:pat, $states:ident, $new_state:expr, $body:stmt) => {{
Oct 13 03:07:50.821 INFO kablam! 55 | |         match *$tok {
Oct 13 03:07:50.821 INFO kablam! 56 | |             $expected => {
Oct 13 03:07:50.821 INFO kablam! ...  |
Oct 13 03:07:50.821 INFO kablam! 65 | |     }}
Oct 13 03:07:50.821 INFO kablam! 66 | | }
Oct 13 03:07:50.821 INFO kablam!    | |_^
Oct 13 03:07:50.821 INFO kablam!    |
Oct 13 03:07:50.821 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 13 03:07:50.836 INFO kablam! 
Oct 13 03:07:51.580 INFO kablam! warning: variable `line_no` is assigned to, but never used
Oct 13 03:07:51.580 INFO kablam!   --> src/lexer/mod.rs:71:13
Oct 13 03:07:51.580 INFO kablam!    |
Oct 13 03:07:51.580 INFO kablam! 71 |     let mut line_no = 0;
Oct 13 03:07:51.580 INFO kablam!    |             ^^^^^^^
Oct 13 03:07:51.580 INFO kablam!    |
Oct 13 03:07:51.580 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:07:51.580 INFO kablam!    = note: consider using `_line_no` instead
Oct 13 03:07:51.580 INFO kablam! 
Oct 13 03:07:51.580 INFO kablam! warning: unused variable: `tabs`
Oct 13 03:07:51.580 INFO kablam!    --> src/printer/mod.rs:199:28
Oct 13 03:07:51.580 INFO kablam!     |
Oct 13 03:07:51.580 INFO kablam! 199 |     fn pretty_print(&self, tabs: u32) {
Oct 13 03:07:51.580 INFO kablam!     |                            ^^^^ help: consider using `_tabs` instead
Oct 13 03:07:51.580 INFO kablam! 
Oct 13 03:07:51.816 INFO kablam! warning: variable `line_no` is assigned to, but never used
Oct 13 03:07:51.817 INFO kablam!   --> src/lexer/mod.rs:71:13
Oct 13 03:07:51.817 INFO kablam!    |
Oct 13 03:07:51.817 INFO kablam! 71 |     let mut line_no = 0;
Oct 13 03:07:51.817 INFO kablam!    |             ^^^^^^^
Oct 13 03:07:51.817 INFO kablam!    |
Oct 13 03:07:51.817 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:07:51.817 INFO kablam!    = note: consider using `_line_no` instead
Oct 13 03:07:51.817 INFO kablam! 
Oct 13 03:07:51.817 INFO kablam! warning: unused variable: `tabs`
Oct 13 03:07:51.817 INFO kablam!    --> src/printer/mod.rs:199:28
Oct 13 03:07:51.817 INFO kablam!     |
Oct 13 03:07:51.817 INFO kablam! 199 |     fn pretty_print(&self, tabs: u32) {
Oct 13 03:07:51.817 INFO kablam!     |                            ^^^^ help: consider using `_tabs` instead
Oct 13 03:07:51.817 INFO kablam! 
Oct 13 03:07:52.328 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
Oct 13 03:07:52.332 INFO kablam! su: No module specific data is present
Oct 13 03:07:53.026 INFO running `"docker" "rm" "-f" "6230e08445458393d3e0d0f3bea541b5005b73fcf5ca82929c7fb8a0f5f7130e"`
Oct 13 03:07:53.384 INFO blam! 6230e08445458393d3e0d0f3bea541b5005b73fcf5ca82929c7fb8a0f5f7130e