Nov 17 03:14:42.837 INFO testing exceptional-lang/exceptional against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 03:14:42.837 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 03:14:43.061 INFO [stdout] 561a68af8c155330c6754576cd14ee1ac6b004f6783394b6289b20b900bcaa2c
Nov 17 03:14:43.068 INFO running `"docker" "start" "-a" "561a68af8c155330c6754576cd14ee1ac6b004f6783394b6289b20b900bcaa2c"`
Nov 17 03:14:43.806 INFO [stderr] usermod: no changes
Nov 17 03:14:43.907 INFO [stderr]    Compiling peg v0.4.0
Nov 17 03:14:43.907 INFO [stderr]    Compiling fern v0.4.0
Nov 17 03:14:46.394 INFO [stderr]    Compiling exceptional v0.1.0 (/source)
Nov 17 03:14:48.020 INFO [stderr] warning: unused import: `Shutdown`
Nov 17 03:14:48.020 INFO [stderr]   --> src/native.rs:14:16
Nov 17 03:14:48.020 INFO [stderr]    |
Nov 17 03:14:48.020 INFO [stderr] 14 | use std::net::{Shutdown, TcpListener, TcpStream};
Nov 17 03:14:48.020 INFO [stderr]    |                ^^^^^^^^
Nov 17 03:14:48.020 INFO [stderr]    |
Nov 17 03:14:48.020 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 17 03:14:48.020 INFO [stderr] 
Nov 17 03:14:48.021 INFO [stderr] warning: unused import: `std::fs`
Nov 17 03:14:48.021 INFO [stderr]  --> src/vm.rs:9:5
Nov 17 03:14:48.021 INFO [stderr]   |
Nov 17 03:14:48.021 INFO [stderr] 9 | use std::fs;
Nov 17 03:14:48.021 INFO [stderr]   |     ^^^^^^^
Nov 17 03:14:48.021 INFO [stderr] 
Nov 17 03:14:48.021 INFO [stderr] warning: unused import: `std::fs::File`
Nov 17 03:14:48.021 INFO [stderr]   --> src/vm.rs:10:5
Nov 17 03:14:48.021 INFO [stderr]    |
Nov 17 03:14:48.021 INFO [stderr] 10 | use std::fs::File;
Nov 17 03:14:48.021 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 17 03:14:48.021 INFO [stderr] 
Nov 17 03:14:48.021 INFO [stderr] warning: unused import: `std::io::Write`
Nov 17 03:14:48.021 INFO [stderr]   --> src/vm.rs:11:5
Nov 17 03:14:48.021 INFO [stderr]    |
Nov 17 03:14:48.021 INFO [stderr] 11 | use std::io::Write;
Nov 17 03:14:48.022 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 03:14:48.022 INFO [stderr] 
Nov 17 03:14:48.992 INFO [stderr] warning: method is never used: `blank`
Nov 17 03:14:48.992 INFO [stderr]   --> src/closure.rs:20:5
Nov 17 03:14:48.992 INFO [stderr]    |
Nov 17 03:14:48.992 INFO [stderr] 20 |     pub fn blank() -> Closure {
Nov 17 03:14:48.992 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 03:14:48.992 INFO [stderr]    |
Nov 17 03:14:48.992 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 03:14:48.992 INFO [stderr] 
Nov 17 03:14:48.993 INFO [stderr] warning: variant is never constructed: `File`
Nov 17 03:14:48.993 INFO [stderr]   --> src/native.rs:23:5
Nov 17 03:14:48.993 INFO [stderr]    |
Nov 17 03:14:48.993 INFO [stderr] 23 |     File(File),
Nov 17 03:14:48.993 INFO [stderr]    |     ^^^^^^^^^^
Nov 17 03:14:48.993 INFO [stderr] 
Nov 17 03:14:48.993 INFO [stderr] warning: method is never used: `empty`
Nov 17 03:14:48.993 INFO [stderr]   --> src/vm.rs:60:5
Nov 17 03:14:48.993 INFO [stderr]    |
Nov 17 03:14:48.993 INFO [stderr] 60 |     pub fn empty() -> Vm {
Nov 17 03:14:48.993 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 17 03:14:48.993 INFO [stderr] 
Nov 17 03:14:48.993 INFO [stderr] warning: method is never used: `pop`
Nov 17 03:14:48.993 INFO [stderr]    --> src/vm.rs:251:5
Nov 17 03:14:48.993 INFO [stderr]     |
Nov 17 03:14:48.993 INFO [stderr] 251 |     pub fn pop(&mut self) -> Option<Value> {
Nov 17 03:14:48.993 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 03:14:48.993 INFO [stderr] 
Nov 17 03:14:48.993 INFO [stderr] warning: method is never used: `local_assign`
Nov 17 03:14:48.993 INFO [stderr]    --> src/vm.rs:259:5
Nov 17 03:14:48.993 INFO [stderr]     |
Nov 17 03:14:48.993 INFO [stderr] 259 |     pub fn local_assign(&mut self, name: &String, value: Value) {
Nov 17 03:14:48.993 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 03:14:48.993 INFO [stderr] 
Nov 17 03:14:52.329 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.52s
Nov 17 03:14:52.335 INFO [stderr] su: No module specific data is present
Nov 17 03:14:52.701 INFO running `"docker" "inspect" "561a68af8c155330c6754576cd14ee1ac6b004f6783394b6289b20b900bcaa2c"`
Nov 17 03:14:52.817 INFO running `"docker" "rm" "-f" "561a68af8c155330c6754576cd14ee1ac6b004f6783394b6289b20b900bcaa2c"`
Nov 17 03:14:52.977 INFO [stdout] 561a68af8c155330c6754576cd14ee1ac6b004f6783394b6289b20b900bcaa2c
Nov 17 03:14:52.979 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 03:14:53.407 INFO [stdout] 49e79bff16547028284b92bcdd66fd456d8f31dce9fa514736c741ad45170fe6
Nov 17 03:14:53.409 INFO running `"docker" "start" "-a" "49e79bff16547028284b92bcdd66fd456d8f31dce9fa514736c741ad45170fe6"`
Nov 17 03:14:54.369 INFO [stderr] usermod: no changes
Nov 17 03:14:54.465 INFO [stderr]    Compiling exceptional v0.1.0 (/source)
Nov 17 03:14:55.463 INFO [stderr] warning: unused import: `std::io::Write`
Nov 17 03:14:55.463 INFO [stderr]   --> src/vm.rs:11:5
Nov 17 03:14:55.463 INFO [stderr]    |
Nov 17 03:14:55.463 INFO [stderr] 11 | use std::io::Write;
Nov 17 03:14:55.463 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 03:14:55.463 INFO [stderr]    |
Nov 17 03:14:55.463 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 17 03:14:55.463 INFO [stderr] 
Nov 17 03:14:57.560 INFO [stderr] warning: variant is never constructed: `File`
Nov 17 03:14:57.560 INFO [stderr]   --> src/native.rs:23:5
Nov 17 03:14:57.560 INFO [stderr]    |
Nov 17 03:14:57.561 INFO [stderr] 23 |     File(File),
Nov 17 03:14:57.561 INFO [stderr]    |     ^^^^^^^^^^
Nov 17 03:14:57.561 INFO [stderr]    |
Nov 17 03:14:57.561 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 03:14:57.562 INFO [stderr] 
Nov 17 03:15:02.606 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
Nov 17 03:15:02.618 INFO [stderr] su: No module specific data is present
Nov 17 03:15:03.411 INFO running `"docker" "inspect" "49e79bff16547028284b92bcdd66fd456d8f31dce9fa514736c741ad45170fe6"`
Nov 17 03:15:03.725 INFO running `"docker" "rm" "-f" "49e79bff16547028284b92bcdd66fd456d8f31dce9fa514736c741ad45170fe6"`
Nov 17 03:15:03.978 INFO [stdout] 49e79bff16547028284b92bcdd66fd456d8f31dce9fa514736c741ad45170fe6