[INFO] updating cached repository PaulJuliusMartinez/CoolRustCompiler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PaulJuliusMartinez/CoolRustCompiler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PaulJuliusMartinez/CoolRustCompiler" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/PaulJuliusMartinez/CoolRustCompiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/PaulJuliusMartinez/CoolRustCompiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PaulJuliusMartinez/CoolRustCompiler" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/PaulJuliusMartinez/CoolRustCompiler"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/PaulJuliusMartinez/CoolRustCompiler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f04cebe065f62a2a5b13c54203c28209c5457b5
[INFO] sha for GitHub repo PaulJuliusMartinez/CoolRustCompiler: 9f04cebe065f62a2a5b13c54203c28209c5457b5
[INFO] validating manifest of PaulJuliusMartinez/CoolRustCompiler on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PaulJuliusMartinez/CoolRustCompiler on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PaulJuliusMartinez/CoolRustCompiler
[INFO] finished frobbing PaulJuliusMartinez/CoolRustCompiler
[INFO] frobbed toml for PaulJuliusMartinez/CoolRustCompiler written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/PaulJuliusMartinez/CoolRustCompiler/Cargo.toml
[INFO] started frobbing PaulJuliusMartinez/CoolRustCompiler
[INFO] finished frobbing PaulJuliusMartinez/CoolRustCompiler
[INFO] frobbed toml for PaulJuliusMartinez/CoolRustCompiler written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/PaulJuliusMartinez/CoolRustCompiler/Cargo.toml
[INFO] crate PaulJuliusMartinez/CoolRustCompiler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking PaulJuliusMartinez/CoolRustCompiler against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/PaulJuliusMartinez/CoolRustCompiler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 83d34da0115b5ceb67cb824b6eb4eca530cc645e4a1e1709bd4401b1ba78229a
[INFO] running `"docker" "start" "-a" "83d34da0115b5ceb67cb824b6eb4eca530cc645e4a1e1709bd4401b1ba78229a"`
[INFO] [stderr]     Checking cool v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::boxed::Box`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::boxed::Box;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ast::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser/mod.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | / macro_rules! match_single_capture {
[INFO] [stderr] 54 | |     ($tok:expr, $expected:pat, $states:ident, $new_state:expr, $body:stmt) => {{
[INFO] [stderr] 55 | |         match *$tok {
[INFO] [stderr] 56 | |             $expected => {
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     }}
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::boxed::Box`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::boxed::Box;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ast::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/parser/mod.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | / macro_rules! match_single_capture {
[INFO] [stderr] 54 | |     ($tok:expr, $expected:pat, $states:ident, $new_state:expr, $body:stmt) => {{
[INFO] [stderr] 55 | |         match *$tok {
[INFO] [stderr] 56 | |             $expected => {
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     }}
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `line_no` is assigned to, but never used
[INFO] [stderr]   --> src/lexer/mod.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut line_no = 0;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_line_no` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tabs`
[INFO] [stderr]    --> src/printer/mod.rs:199:28
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn pretty_print(&self, tabs: u32) {
[INFO] [stderr]     |                            ^^^^ help: consider prefixing with an underscore: `_tabs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `line_no` is assigned to, but never used
[INFO] [stderr]   --> src/lexer/mod.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut line_no = 0;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_line_no` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tabs`
[INFO] [stderr]    --> src/printer/mod.rs:199:28
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn pretty_print(&self, tabs: u32) {
[INFO] [stderr]     |                            ^^^^ help: consider prefixing with an underscore: `_tabs`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "83d34da0115b5ceb67cb824b6eb4eca530cc645e4a1e1709bd4401b1ba78229a"`
[INFO] running `"docker" "rm" "-f" "83d34da0115b5ceb67cb824b6eb4eca530cc645e4a1e1709bd4401b1ba78229a"`
[INFO] [stdout] 83d34da0115b5ceb67cb824b6eb4eca530cc645e4a1e1709bd4401b1ba78229a