Dec 13 19:45:08.068 INFO testing exceptional-lang/exceptional against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 19:45:08.068 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 13 19:45:08.229 INFO [stdout] 2ac944e4734a5b22d57190bb12647626e8a211eacee26b9184161f6feddceb38
Dec 13 19:45:08.235 INFO running `"docker" "start" "-a" "2ac944e4734a5b22d57190bb12647626e8a211eacee26b9184161f6feddceb38"`
Dec 13 19:45:08.778 INFO [stderr] usermod: no changes
Dec 13 19:45:08.892 INFO [stderr]    Compiling peg v0.4.0
Dec 13 19:45:08.892 INFO [stderr]    Compiling fern v0.4.0
Dec 13 19:45:08.892 INFO [stderr]    Compiling num-bigint v0.1.39
Dec 13 19:45:11.139 INFO [stderr]    Compiling num-rational v0.1.38
Dec 13 19:45:12.287 INFO [stderr]    Compiling exceptional v0.1.0 (/source)
Dec 13 19:45:13.798 INFO [stderr]    Compiling num v0.1.39
Dec 13 19:45:15.306 INFO [stderr] warning: unused import: `Shutdown`
Dec 13 19:45:15.306 INFO [stderr]   --> src/native.rs:14:16
Dec 13 19:45:15.306 INFO [stderr]    |
Dec 13 19:45:15.306 INFO [stderr] 14 | use std::net::{Shutdown, TcpListener, TcpStream};
Dec 13 19:45:15.306 INFO [stderr]    |                ^^^^^^^^
Dec 13 19:45:15.306 INFO [stderr]    |
Dec 13 19:45:15.306 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 13 19:45:15.306 INFO [stderr] 
Dec 13 19:45:15.306 INFO [stderr] warning: unused import: `std::fs`
Dec 13 19:45:15.306 INFO [stderr]  --> src/vm.rs:9:5
Dec 13 19:45:15.306 INFO [stderr]   |
Dec 13 19:45:15.306 INFO [stderr] 9 | use std::fs;
Dec 13 19:45:15.306 INFO [stderr]   |     ^^^^^^^
Dec 13 19:45:15.306 INFO [stderr] 
Dec 13 19:45:15.306 INFO [stderr] warning: unused import: `std::fs::File`
Dec 13 19:45:15.306 INFO [stderr]   --> src/vm.rs:10:5
Dec 13 19:45:15.306 INFO [stderr]    |
Dec 13 19:45:15.306 INFO [stderr] 10 | use std::fs::File;
Dec 13 19:45:15.306 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 13 19:45:15.306 INFO [stderr] 
Dec 13 19:45:15.306 INFO [stderr] warning: unused import: `std::io::Write`
Dec 13 19:45:15.306 INFO [stderr]   --> src/vm.rs:11:5
Dec 13 19:45:15.306 INFO [stderr]    |
Dec 13 19:45:15.306 INFO [stderr] 11 | use std::io::Write;
Dec 13 19:45:15.306 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 13 19:45:15.306 INFO [stderr] 
Dec 13 19:45:16.171 INFO [stderr] warning: method is never used: `blank`
Dec 13 19:45:16.171 INFO [stderr]   --> src/closure.rs:20:5
Dec 13 19:45:16.171 INFO [stderr]    |
Dec 13 19:45:16.171 INFO [stderr] 20 |     pub fn blank() -> Closure {
Dec 13 19:45:16.171 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:45:16.171 INFO [stderr]    |
Dec 13 19:45:16.171 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 19:45:16.171 INFO [stderr] 
Dec 13 19:45:16.171 INFO [stderr] warning: variant is never constructed: `File`
Dec 13 19:45:16.171 INFO [stderr]   --> src/native.rs:23:5
Dec 13 19:45:16.171 INFO [stderr]    |
Dec 13 19:45:16.171 INFO [stderr] 23 |     File(File),
Dec 13 19:45:16.171 INFO [stderr]    |     ^^^^^^^^^^
Dec 13 19:45:16.171 INFO [stderr] 
Dec 13 19:45:16.171 INFO [stderr] warning: method is never used: `empty`
Dec 13 19:45:16.171 INFO [stderr]   --> src/vm.rs:60:5
Dec 13 19:45:16.171 INFO [stderr]    |
Dec 13 19:45:16.171 INFO [stderr] 60 |     pub fn empty() -> Vm {
Dec 13 19:45:16.171 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 19:45:16.171 INFO [stderr] 
Dec 13 19:45:16.175 INFO [stderr] warning: method is never used: `pop`
Dec 13 19:45:16.175 INFO [stderr]    --> src/vm.rs:251:5
Dec 13 19:45:16.175 INFO [stderr]     |
Dec 13 19:45:16.175 INFO [stderr] 251 |     pub fn pop(&mut self) -> Option<Value> {
Dec 13 19:45:16.175 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:45:16.175 INFO [stderr] 
Dec 13 19:45:16.175 INFO [stderr] warning: method is never used: `local_assign`
Dec 13 19:45:16.175 INFO [stderr]    --> src/vm.rs:259:5
Dec 13 19:45:16.175 INFO [stderr]     |
Dec 13 19:45:16.175 INFO [stderr] 259 |     pub fn local_assign(&mut self, name: &String, value: Value) {
Dec 13 19:45:16.175 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:45:16.175 INFO [stderr] 
Dec 13 19:45:19.216 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.41s
Dec 13 19:45:19.221 INFO [stderr] su: No module specific data is present
Dec 13 19:45:19.560 INFO running `"docker" "inspect" "2ac944e4734a5b22d57190bb12647626e8a211eacee26b9184161f6feddceb38"`
Dec 13 19:45:19.631 INFO running `"docker" "rm" "-f" "2ac944e4734a5b22d57190bb12647626e8a211eacee26b9184161f6feddceb38"`
Dec 13 19:45:19.702 INFO [stdout] 2ac944e4734a5b22d57190bb12647626e8a211eacee26b9184161f6feddceb38
Dec 13 19:45:19.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 13 19:45:19.909 INFO [stdout] fb118f7856cc97e29c4f94c4879cd32604dd7ca0fc2ebec31ac12a0db3404e31
Dec 13 19:45:19.912 INFO running `"docker" "start" "-a" "fb118f7856cc97e29c4f94c4879cd32604dd7ca0fc2ebec31ac12a0db3404e31"`
Dec 13 19:45:20.337 INFO [stderr] usermod: no changes
Dec 13 19:45:20.410 INFO [stderr]    Compiling exceptional v0.1.0 (/source)
Dec 13 19:45:21.647 INFO [stderr] warning: unused import: `std::io::Write`
Dec 13 19:45:21.647 INFO [stderr]   --> src/vm.rs:11:5
Dec 13 19:45:21.647 INFO [stderr]    |
Dec 13 19:45:21.647 INFO [stderr] 11 | use std::io::Write;
Dec 13 19:45:21.647 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 13 19:45:21.647 INFO [stderr]    |
Dec 13 19:45:21.647 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 13 19:45:21.647 INFO [stderr] 
Dec 13 19:45:23.407 INFO [stderr] warning: variant is never constructed: `File`
Dec 13 19:45:23.408 INFO [stderr]   --> src/native.rs:23:5
Dec 13 19:45:23.408 INFO [stderr]    |
Dec 13 19:45:23.408 INFO [stderr] 23 |     File(File),
Dec 13 19:45:23.408 INFO [stderr]    |     ^^^^^^^^^^
Dec 13 19:45:23.408 INFO [stderr]    |
Dec 13 19:45:23.408 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 19:45:23.408 INFO [stderr] 
Dec 13 19:45:27.812 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.45s
Dec 13 19:45:27.818 INFO [stderr] su: No module specific data is present
Dec 13 19:45:28.383 INFO running `"docker" "inspect" "fb118f7856cc97e29c4f94c4879cd32604dd7ca0fc2ebec31ac12a0db3404e31"`
Dec 13 19:45:28.785 INFO running `"docker" "rm" "-f" "fb118f7856cc97e29c4f94c4879cd32604dd7ca0fc2ebec31ac12a0db3404e31"`
Dec 13 19:45:29.015 INFO [stdout] fb118f7856cc97e29c4f94c4879cd32604dd7ca0fc2ebec31ac12a0db3404e31