Dec 12 00:31:58.602 INFO checking RussellSprouts/6502-language-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 00:31:58.602 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 00:31:59.178 INFO [stdout] b1f699d1d7b09d727aaa62cfeb9cd10a02bee43cd7551a7cf089f3cf181690fe
Dec 12 00:31:59.186 INFO running `"docker" "start" "-a" "b1f699d1d7b09d727aaa62cfeb9cd10a02bee43cd7551a7cf089f3cf181690fe"`
Dec 12 00:31:59.972 INFO [stderr] usermod: no changes
Dec 12 00:32:00.044 INFO [stderr]    Compiling libc v0.2.39
Dec 12 00:32:00.044 INFO [stderr]    Compiling im v10.0.0
Dec 12 00:32:00.044 INFO [stderr]     Checking regex v0.2.6
Dec 12 00:32:02.872 INFO [stderr]    Compiling memchr v2.0.1
Dec 12 00:32:04.613 INFO [stderr]    Compiling aho-corasick v0.6.4
Dec 12 00:32:18.938 INFO [stderr]    Compiling compiler v0.1.0 (/source)
Dec 12 00:32:22.320 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:32:22.320 INFO [stderr]  --> main.rs:6:1
Dec 12 00:32:22.320 INFO [stderr]   |
Dec 12 00:32:22.320 INFO [stderr] 6 | #[macro_use]
Dec 12 00:32:22.320 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:32:22.320 INFO [stderr]   |
Dec 12 00:32:22.320 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:32:22.320 INFO [stderr] 
Dec 12 00:32:22.401 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:32:22.402 INFO [stderr]  --> main.rs:6:1
Dec 12 00:32:22.402 INFO [stderr]   |
Dec 12 00:32:22.402 INFO [stderr] 6 | #[macro_use]
Dec 12 00:32:22.402 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:32:22.402 INFO [stderr]   |
Dec 12 00:32:22.403 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:32:22.403 INFO [stderr] 
Dec 12 00:32:23.112 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:32:23.112 INFO [stderr]    --> main.rs:327:9
Dec 12 00:32:23.112 INFO [stderr]     |
Dec 12 00:32:23.112 INFO [stderr] 327 |     let mut parsed: &Expression2;
Dec 12 00:32:23.112 INFO [stderr]     |         ----^^^^^^
Dec 12 00:32:23.112 INFO [stderr]     |         |
Dec 12 00:32:23.112 INFO [stderr]     |         help: remove this `mut`
Dec 12 00:32:23.112 INFO [stderr]     |
Dec 12 00:32:23.112 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 00:32:23.112 INFO [stderr] 
Dec 12 00:32:23.488 INFO [stderr] warning: method is never used: `size`
Dec 12 00:32:23.488 INFO [stderr]    --> main.rs:264:5
Dec 12 00:32:23.488 INFO [stderr]     |
Dec 12 00:32:23.488 INFO [stderr] 264 |     fn size(&self) -> u64 {
Dec 12 00:32:23.488 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:32:23.488 INFO [stderr]     |
Dec 12 00:32:23.488 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 00:32:23.488 INFO [stderr] 
Dec 12 00:32:23.488 INFO [stderr] warning: the feature `underscore_lifetimes` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 00:32:23.488 INFO [stderr]  --> main.rs:2:12
Dec 12 00:32:23.488 INFO [stderr]   |
Dec 12 00:32:23.488 INFO [stderr] 2 | #![feature(underscore_lifetimes)]
Dec 12 00:32:23.488 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 12 00:32:23.488 INFO [stderr]   |
Dec 12 00:32:23.488 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 00:32:23.488 INFO [stderr] 
Dec 12 00:32:23.592 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:32:23.592 INFO [stderr]    --> main.rs:327:9
Dec 12 00:32:23.592 INFO [stderr]     |
Dec 12 00:32:23.592 INFO [stderr] 327 |     let mut parsed: &Expression2;
Dec 12 00:32:23.592 INFO [stderr]     |         ----^^^^^^
Dec 12 00:32:23.592 INFO [stderr]     |         |
Dec 12 00:32:23.592 INFO [stderr]     |         help: remove this `mut`
Dec 12 00:32:23.592 INFO [stderr]     |
Dec 12 00:32:23.592 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 00:32:23.592 INFO [stderr] 
Dec 12 00:32:23.858 INFO [stderr] warning: method is never used: `size`
Dec 12 00:32:23.858 INFO [stderr]    --> main.rs:264:5
Dec 12 00:32:23.858 INFO [stderr]     |
Dec 12 00:32:23.858 INFO [stderr] 264 |     fn size(&self) -> u64 {
Dec 12 00:32:23.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:32:23.858 INFO [stderr]     |
Dec 12 00:32:23.858 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 00:32:23.858 INFO [stderr] 
Dec 12 00:32:23.858 INFO [stderr] warning: the feature `underscore_lifetimes` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 00:32:23.858 INFO [stderr]  --> main.rs:2:12
Dec 12 00:32:23.858 INFO [stderr]   |
Dec 12 00:32:23.858 INFO [stderr] 2 | #![feature(underscore_lifetimes)]
Dec 12 00:32:23.858 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Dec 12 00:32:23.858 INFO [stderr]   |
Dec 12 00:32:23.858 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 00:32:23.858 INFO [stderr] 
Dec 12 00:32:23.886 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.90s
Dec 12 00:32:23.890 INFO [stderr] su: No module specific data is present
Dec 12 00:32:24.756 INFO running `"docker" "inspect" "b1f699d1d7b09d727aaa62cfeb9cd10a02bee43cd7551a7cf089f3cf181690fe"`
Dec 12 00:32:25.046 INFO running `"docker" "rm" "-f" "b1f699d1d7b09d727aaa62cfeb9cd10a02bee43cd7551a7cf089f3cf181690fe"`
Dec 12 00:32:25.390 INFO [stdout] b1f699d1d7b09d727aaa62cfeb9cd10a02bee43cd7551a7cf089f3cf181690fe