Dec 11 18:43:10.027 INFO checking exceptional-lang/exceptional against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 18:43:10.027 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 18:43:10.333 INFO [stdout] dde5bcc6ffd4edb547a73d50c80b429a4d235bb978d465da403c701064d784bf
Dec 11 18:43:10.342 INFO running `"docker" "start" "-a" "dde5bcc6ffd4edb547a73d50c80b429a4d235bb978d465da403c701064d784bf"`
Dec 11 18:43:10.802 INFO [stderr] usermod: no changes
Dec 11 18:43:10.904 INFO [stderr]    Compiling peg v0.4.0
Dec 11 18:43:10.904 INFO [stderr]     Checking fern v0.4.0
Dec 11 18:43:10.904 INFO [stderr]     Checking num-bigint v0.1.39
Dec 11 18:43:12.040 INFO [stderr]     Checking num-rational v0.1.38
Dec 11 18:43:13.521 INFO [stderr]    Compiling exceptional v0.1.0 (/source)
Dec 11 18:43:13.832 INFO [stderr]     Checking num v0.1.39
Dec 11 18:43:15.569 INFO [stderr] warning: unused import: `Shutdown`
Dec 11 18:43:15.569 INFO [stderr]   --> src/native.rs:14:16
Dec 11 18:43:15.569 INFO [stderr]    |
Dec 11 18:43:15.569 INFO [stderr] 14 | use std::net::{Shutdown, TcpListener, TcpStream};
Dec 11 18:43:15.569 INFO [stderr]    |                ^^^^^^^^
Dec 11 18:43:15.569 INFO [stderr]    |
Dec 11 18:43:15.569 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 18:43:15.569 INFO [stderr] 
Dec 11 18:43:15.576 INFO [stderr] warning: unused import: `std::fs`
Dec 11 18:43:15.576 INFO [stderr]  --> src/vm.rs:9:5
Dec 11 18:43:15.576 INFO [stderr]   |
Dec 11 18:43:15.576 INFO [stderr] 9 | use std::fs;
Dec 11 18:43:15.576 INFO [stderr]   |     ^^^^^^^
Dec 11 18:43:15.576 INFO [stderr] 
Dec 11 18:43:15.576 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 18:43:15.576 INFO [stderr]   --> src/vm.rs:10:5
Dec 11 18:43:15.576 INFO [stderr]    |
Dec 11 18:43:15.576 INFO [stderr] 10 | use std::fs::File;
Dec 11 18:43:15.576 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 18:43:15.576 INFO [stderr] 
Dec 11 18:43:15.576 INFO [stderr] warning: unused import: `std::io::Write`
Dec 11 18:43:15.576 INFO [stderr]   --> src/vm.rs:11:5
Dec 11 18:43:15.576 INFO [stderr]    |
Dec 11 18:43:15.576 INFO [stderr] 11 | use std::io::Write;
Dec 11 18:43:15.576 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 11 18:43:15.576 INFO [stderr] 
Dec 11 18:43:15.803 INFO [stderr] warning: unused import: `std::io::Write`
Dec 11 18:43:15.803 INFO [stderr]   --> src/vm.rs:11:5
Dec 11 18:43:15.803 INFO [stderr]    |
Dec 11 18:43:15.803 INFO [stderr] 11 | use std::io::Write;
Dec 11 18:43:15.803 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 11 18:43:15.816 INFO [stderr]    |
Dec 11 18:43:15.816 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 18:43:15.816 INFO [stderr] 
Dec 11 18:43:16.597 INFO [stderr] warning: method is never used: `blank`
Dec 11 18:43:16.597 INFO [stderr]   --> src/closure.rs:20:5
Dec 11 18:43:16.597 INFO [stderr]    |
Dec 11 18:43:16.597 INFO [stderr] 20 |     pub fn blank() -> Closure {
Dec 11 18:43:16.597 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:43:16.597 INFO [stderr]    |
Dec 11 18:43:16.597 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:43:16.597 INFO [stderr] 
Dec 11 18:43:16.601 INFO [stderr] warning: variant is never constructed: `File`
Dec 11 18:43:16.601 INFO [stderr]   --> src/native.rs:23:5
Dec 11 18:43:16.601 INFO [stderr]    |
Dec 11 18:43:16.601 INFO [stderr] 23 |     File(File),
Dec 11 18:43:16.601 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 18:43:16.601 INFO [stderr] 
Dec 11 18:43:16.601 INFO [stderr] warning: method is never used: `empty`
Dec 11 18:43:16.601 INFO [stderr]   --> src/vm.rs:60:5
Dec 11 18:43:16.601 INFO [stderr]    |
Dec 11 18:43:16.601 INFO [stderr] 60 |     pub fn empty() -> Vm {
Dec 11 18:43:16.601 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 18:43:16.601 INFO [stderr] 
Dec 11 18:43:16.601 INFO [stderr] warning: method is never used: `pop`
Dec 11 18:43:16.601 INFO [stderr]    --> src/vm.rs:251:5
Dec 11 18:43:16.601 INFO [stderr]     |
Dec 11 18:43:16.601 INFO [stderr] 251 |     pub fn pop(&mut self) -> Option<Value> {
Dec 11 18:43:16.601 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:43:16.601 INFO [stderr] 
Dec 11 18:43:16.601 INFO [stderr] warning: method is never used: `local_assign`
Dec 11 18:43:16.602 INFO [stderr]    --> src/vm.rs:259:5
Dec 11 18:43:16.602 INFO [stderr]     |
Dec 11 18:43:16.602 INFO [stderr] 259 |     pub fn local_assign(&mut self, name: &String, value: Value) {
Dec 11 18:43:16.602 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:43:16.602 INFO [stderr] 
Dec 11 18:43:17.752 INFO [stderr] warning: variant is never constructed: `File`
Dec 11 18:43:17.752 INFO [stderr]   --> src/native.rs:23:5
Dec 11 18:43:17.752 INFO [stderr]    |
Dec 11 18:43:17.752 INFO [stderr] 23 |     File(File),
Dec 11 18:43:17.752 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 18:43:17.752 INFO [stderr]    |
Dec 11 18:43:17.752 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:43:17.752 INFO [stderr] 
Dec 11 18:43:17.865 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.04s
Dec 11 18:43:17.870 INFO [stderr] su: No module specific data is present
Dec 11 18:43:18.780 INFO running `"docker" "inspect" "dde5bcc6ffd4edb547a73d50c80b429a4d235bb978d465da403c701064d784bf"`
Dec 11 18:43:19.038 INFO running `"docker" "rm" "-f" "dde5bcc6ffd4edb547a73d50c80b429a4d235bb978d465da403c701064d784bf"`
Dec 11 18:43:19.242 INFO [stdout] dde5bcc6ffd4edb547a73d50c80b429a4d235bb978d465da403c701064d784bf