Nov 28 22:31:26.447 INFO checking little-0.3.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 22:31:26.448 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 22:31:26.790 INFO [stdout] aa29a850abcc637664e4fa4b4046ddb6f677a96de99e436ded90a52cc75f1a3c
Nov 28 22:31:26.791 INFO running `"docker" "start" "-a" "aa29a850abcc637664e4fa4b4046ddb6f677a96de99e436ded90a52cc75f1a3c"`
Nov 28 22:31:27.587 INFO [stderr] usermod: no changes
Nov 28 22:31:27.708 INFO [stderr]     Checking little v0.3.0 (/source)
Nov 28 22:31:28.508 INFO [stderr] warning: unused import: `BuildError`
Nov 28 22:31:28.508 INFO [stderr]  --> src/compiler.rs:9:5
Nov 28 22:31:28.508 INFO [stderr]   |
Nov 28 22:31:28.508 INFO [stderr] 9 |     BuildError,
Nov 28 22:31:28.508 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 22:31:28.508 INFO [stderr]   |
Nov 28 22:31:28.508 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 22:31:28.508 INFO [stderr] 
Nov 28 22:31:28.568 INFO [stderr] warning: unused import: `BuildError`
Nov 28 22:31:28.568 INFO [stderr]  --> src/compiler.rs:9:5
Nov 28 22:31:28.568 INFO [stderr]   |
Nov 28 22:31:28.568 INFO [stderr] 9 |     BuildError,
Nov 28 22:31:28.568 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 22:31:28.568 INFO [stderr]   |
Nov 28 22:31:28.568 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 22:31:28.568 INFO [stderr] 
Nov 28 22:31:28.864 INFO [stderr] warning: unused import: `Write`
Nov 28 22:31:28.865 INFO [stderr]   --> src/lib.rs:14:22
Nov 28 22:31:28.865 INFO [stderr]    |
Nov 28 22:31:28.865 INFO [stderr] 14 | use std::io::{ self, Write };
Nov 28 22:31:28.865 INFO [stderr]    |                      ^^^^^
Nov 28 22:31:28.865 INFO [stderr] 
Nov 28 22:31:28.865 INFO [stderr] warning: unused import: `Read`
Nov 28 22:31:28.866 INFO [stderr]  --> src/interpreter.rs:4:16
Nov 28 22:31:28.866 INFO [stderr]   |
Nov 28 22:31:28.866 INFO [stderr] 4 | use std::io::{ Read, Write };
Nov 28 22:31:28.866 INFO [stderr]   |                ^^^^
Nov 28 22:31:28.866 INFO [stderr] 
Nov 28 22:31:28.898 INFO [stderr] warning: unused variable: `id`
Nov 28 22:31:28.898 INFO [stderr]   --> src/interpreter.rs:64:27
Nov 28 22:31:28.898 INFO [stderr]    |
Nov 28 22:31:28.898 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.898 INFO [stderr]    |                           ^^ help: consider using `_id` instead
Nov 28 22:31:28.899 INFO [stderr]    |
Nov 28 22:31:28.899 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 22:31:28.899 INFO [stderr] 
Nov 28 22:31:28.899 INFO [stderr] warning: unused variable: `env`
Nov 28 22:31:28.899 INFO [stderr]   --> src/interpreter.rs:64:37
Nov 28 22:31:28.899 INFO [stderr]    |
Nov 28 22:31:28.899 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.900 INFO [stderr]    |                                     ^^^ help: consider using `_env` instead
Nov 28 22:31:28.900 INFO [stderr] 
Nov 28 22:31:28.900 INFO [stderr] warning: unused variable: `calls`
Nov 28 22:31:28.900 INFO [stderr]   --> src/interpreter.rs:64:55
Nov 28 22:31:28.900 INFO [stderr]    |
Nov 28 22:31:28.900 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.900 INFO [stderr]    |                                                       ^^^^^ help: consider using `_calls` instead
Nov 28 22:31:28.901 INFO [stderr] 
Nov 28 22:31:28.901 INFO [stderr] warning: unused variable: `name`
Nov 28 22:31:28.901 INFO [stderr]    --> src/interpreter.rs:136:49
Nov 28 22:31:28.901 INFO [stderr]     |
Nov 28 22:31:28.901 INFO [stderr] 136 |                     Instruction::Property { mut name } => {
Nov 28 22:31:28.901 INFO [stderr]     |                                                 ^^^^ help: try ignoring the field: `name: _`
Nov 28 22:31:28.901 INFO [stderr] 
Nov 28 22:31:28.902 INFO [stderr] warning: unused variable: `name`
Nov 28 22:31:28.902 INFO [stderr]    --> src/interpreter.rs:267:30
Nov 28 22:31:28.902 INFO [stderr]     |
Nov 28 22:31:28.902 INFO [stderr] 267 |             Mem::Parameter { name } => {
Nov 28 22:31:28.902 INFO [stderr]     |                              ^^^^ help: try ignoring the field: `name: _`
Nov 28 22:31:28.902 INFO [stderr] 
Nov 28 22:31:28.902 INFO [stderr] warning: unused variable: `id`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:36:27
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.903 INFO [stderr]    |                           ^^ help: consider using `_id` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.903 INFO [stderr] warning: unused variable: `env`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:36:37
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.903 INFO [stderr]    |                                     ^^^ help: consider using `_env` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.903 INFO [stderr] warning: unused variable: `calls`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:36:55
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:28.903 INFO [stderr]    |                                                       ^^^^^ help: consider using `_calls` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.903 INFO [stderr] warning: unused variable: `buf`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:68:24
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 68 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
Nov 28 22:31:28.903 INFO [stderr]    |                        ^^^ help: consider using `_buf` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.903 INFO [stderr] warning: unused variable: `input`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:80:29
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:28.903 INFO [stderr]    |                             ^^^^^ help: consider using `_input` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.903 INFO [stderr] warning: unused variable: `output`
Nov 28 22:31:28.903 INFO [stderr]   --> src/compiler.rs:80:44
Nov 28 22:31:28.903 INFO [stderr]    |
Nov 28 22:31:28.903 INFO [stderr] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:28.903 INFO [stderr]    |                                            ^^^^^^ help: consider using `_output` instead
Nov 28 22:31:28.903 INFO [stderr] 
Nov 28 22:31:28.971 INFO [stderr] warning: unused import: `Write`
Nov 28 22:31:28.972 INFO [stderr]   --> src/lib.rs:14:22
Nov 28 22:31:28.972 INFO [stderr]    |
Nov 28 22:31:28.972 INFO [stderr] 14 | use std::io::{ self, Write };
Nov 28 22:31:28.972 INFO [stderr]    |                      ^^^^^
Nov 28 22:31:28.972 INFO [stderr] 
Nov 28 22:31:28.972 INFO [stderr] warning: unused import: `Read`
Nov 28 22:31:28.973 INFO [stderr]  --> src/interpreter.rs:4:16
Nov 28 22:31:28.973 INFO [stderr]   |
Nov 28 22:31:28.973 INFO [stderr] 4 | use std::io::{ Read, Write };
Nov 28 22:31:28.973 INFO [stderr]   |                ^^^^
Nov 28 22:31:28.973 INFO [stderr] 
Nov 28 22:31:29.040 INFO [stderr] warning: unused variable: `id`
Nov 28 22:31:29.040 INFO [stderr]   --> src/interpreter.rs:64:27
Nov 28 22:31:29.040 INFO [stderr]    |
Nov 28 22:31:29.040 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.040 INFO [stderr]    |                           ^^ help: consider using `_id` instead
Nov 28 22:31:29.040 INFO [stderr]    |
Nov 28 22:31:29.040 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 22:31:29.040 INFO [stderr] 
Nov 28 22:31:29.040 INFO [stderr] warning: unused variable: `env`
Nov 28 22:31:29.040 INFO [stderr]   --> src/interpreter.rs:64:37
Nov 28 22:31:29.040 INFO [stderr]    |
Nov 28 22:31:29.040 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.040 INFO [stderr]    |                                     ^^^ help: consider using `_env` instead
Nov 28 22:31:29.040 INFO [stderr] 
Nov 28 22:31:29.040 INFO [stderr] warning: unused variable: `calls`
Nov 28 22:31:29.040 INFO [stderr]   --> src/interpreter.rs:64:55
Nov 28 22:31:29.040 INFO [stderr]    |
Nov 28 22:31:29.040 INFO [stderr] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.040 INFO [stderr]    |                                                       ^^^^^ help: consider using `_calls` instead
Nov 28 22:31:29.040 INFO [stderr] 
Nov 28 22:31:29.040 INFO [stderr] warning: unused variable: `name`
Nov 28 22:31:29.040 INFO [stderr]    --> src/interpreter.rs:136:49
Nov 28 22:31:29.040 INFO [stderr]     |
Nov 28 22:31:29.040 INFO [stderr] 136 |                     Instruction::Property { mut name } => {
Nov 28 22:31:29.040 INFO [stderr]     |                                                 ^^^^ help: try ignoring the field: `name: _`
Nov 28 22:31:29.040 INFO [stderr] 
Nov 28 22:31:29.040 INFO [stderr] warning: unused variable: `name`
Nov 28 22:31:29.040 INFO [stderr]    --> src/interpreter.rs:267:30
Nov 28 22:31:29.040 INFO [stderr]     |
Nov 28 22:31:29.040 INFO [stderr] 267 |             Mem::Parameter { name } => {
Nov 28 22:31:29.040 INFO [stderr]     |                              ^^^^ help: try ignoring the field: `name: _`
Nov 28 22:31:29.041 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `id`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:36:27
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.044 INFO [stderr]    |                           ^^ help: consider using `_id` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `env`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:36:37
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.044 INFO [stderr]    |                                     ^^^ help: consider using `_env` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `calls`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:36:55
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
Nov 28 22:31:29.044 INFO [stderr]    |                                                       ^^^^^ help: consider using `_calls` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `buf`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:68:24
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 68 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
Nov 28 22:31:29.044 INFO [stderr]    |                        ^^^ help: consider using `_buf` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `input`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:80:29
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:29.044 INFO [stderr]    |                             ^^^^^ help: consider using `_input` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.044 INFO [stderr] warning: unused variable: `output`
Nov 28 22:31:29.044 INFO [stderr]   --> src/compiler.rs:80:44
Nov 28 22:31:29.044 INFO [stderr]    |
Nov 28 22:31:29.044 INFO [stderr] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:29.044 INFO [stderr]    |                                            ^^^^^^ help: consider using `_output` instead
Nov 28 22:31:29.044 INFO [stderr] 
Nov 28 22:31:29.160 INFO [stderr] warning: struct is never constructed: `template_ooo`
Nov 28 22:31:29.160 INFO [stderr]   --> src/compiler.rs:77:5
Nov 28 22:31:29.160 INFO [stderr]    |
Nov 28 22:31:29.160 INFO [stderr] 77 |     pub struct template_ooo;
Nov 28 22:31:29.160 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 22:31:29.160 INFO [stderr]    |
Nov 28 22:31:29.160 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 22:31:29.160 INFO [stderr] 
Nov 28 22:31:29.160 INFO [stderr] warning: method is never used: `output`
Nov 28 22:31:29.160 INFO [stderr]   --> src/compiler.rs:80:9
Nov 28 22:31:29.160 INFO [stderr]    |
Nov 28 22:31:29.160 INFO [stderr] 80 | /         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:29.160 INFO [stderr] 81 | |             -> Result<usize, io::Error>
Nov 28 22:31:29.160 INFO [stderr] 82 | |         where
Nov 28 22:31:29.160 INFO [stderr] 83 | |             I: io::Read + io::Seek, O: io::Write
Nov 28 22:31:29.160 INFO [stderr] ...  |
Nov 28 22:31:29.160 INFO [stderr] 86 | |             Ok(0)
Nov 28 22:31:29.160 INFO [stderr] 87 | |         }
Nov 28 22:31:29.160 INFO [stderr]    | |_________^
Nov 28 22:31:29.160 INFO [stderr] 
Nov 28 22:31:29.272 INFO [stderr] warning: struct is never constructed: `template_ooo`
Nov 28 22:31:29.272 INFO [stderr]   --> src/compiler.rs:77:5
Nov 28 22:31:29.272 INFO [stderr]    |
Nov 28 22:31:29.272 INFO [stderr] 77 |     pub struct template_ooo;
Nov 28 22:31:29.272 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 22:31:29.272 INFO [stderr]    |
Nov 28 22:31:29.272 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 22:31:29.272 INFO [stderr] 
Nov 28 22:31:29.272 INFO [stderr] warning: method is never used: `output`
Nov 28 22:31:29.272 INFO [stderr]   --> src/compiler.rs:80:9
Nov 28 22:31:29.272 INFO [stderr]    |
Nov 28 22:31:29.272 INFO [stderr] 80 | /         pub fn output<I, O>(input: &mut I, output: &mut O)
Nov 28 22:31:29.272 INFO [stderr] 81 | |             -> Result<usize, io::Error>
Nov 28 22:31:29.272 INFO [stderr] 82 | |         where
Nov 28 22:31:29.272 INFO [stderr] 83 | |             I: io::Read + io::Seek, O: io::Write
Nov 28 22:31:29.272 INFO [stderr] ...  |
Nov 28 22:31:29.272 INFO [stderr] 86 | |             Ok(0)
Nov 28 22:31:29.272 INFO [stderr] 87 | |         }
Nov 28 22:31:29.273 INFO [stderr]    | |_________^
Nov 28 22:31:29.273 INFO [stderr] 
Nov 28 22:31:30.968 INFO [stderr] warning: unused import: `Write`
Nov 28 22:31:30.968 INFO [stderr]  --> examples/hello_world.rs:4:22
Nov 28 22:31:30.968 INFO [stderr]   |
Nov 28 22:31:30.968 INFO [stderr] 4 | use std::io::{ Read, Write };
Nov 28 22:31:30.968 INFO [stderr]   |                      ^^^^^
Nov 28 22:31:30.968 INFO [stderr]   |
Nov 28 22:31:30.968 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 22:31:30.968 INFO [stderr] 
Nov 28 22:31:31.808 INFO [stderr] warning: unused `#[macro_use]` import
Nov 28 22:31:31.808 INFO [stderr]  --> tests/compiler.rs:2:1
Nov 28 22:31:31.808 INFO [stderr]   |
Nov 28 22:31:31.808 INFO [stderr] 2 | #[macro_use] extern crate log;
Nov 28 22:31:31.808 INFO [stderr]   | ^^^^^^^^^^^^
Nov 28 22:31:31.808 INFO [stderr]   |
Nov 28 22:31:31.808 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 22:31:31.808 INFO [stderr] 
Nov 28 22:31:31.928 INFO [stderr] warning: function is never used: `output_param`
Nov 28 22:31:31.928 INFO [stderr]   --> tests/compiler.rs:16:1
Nov 28 22:31:31.928 INFO [stderr]    |
Nov 28 22:31:31.928 INFO [stderr] 16 | fn output_param() {
Nov 28 22:31:31.928 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Nov 28 22:31:31.928 INFO [stderr]    |
Nov 28 22:31:31.928 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 22:31:31.928 INFO [stderr] 
Nov 28 22:31:31.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
Nov 28 22:31:31.964 INFO [stderr] su: No module specific data is present
Nov 28 22:31:32.499 INFO running `"docker" "inspect" "aa29a850abcc637664e4fa4b4046ddb6f677a96de99e436ded90a52cc75f1a3c"`
Nov 28 22:31:32.793 INFO running `"docker" "rm" "-f" "aa29a850abcc637664e4fa4b4046ddb6f677a96de99e436ded90a52cc75f1a3c"`
Nov 28 22:31:33.064 INFO [stdout] aa29a850abcc637664e4fa4b4046ddb6f677a96de99e436ded90a52cc75f1a3c