Nov 30 11:05:28.823 INFO checking FlatBartender/flow against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 11:05:28.823 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 11:05:29.238 INFO [stdout] a8730f002b65f4e070746eece9ce82b892d4c336cb774059c6446674dc73d00e
Nov 30 11:05:29.240 INFO running `"docker" "start" "-a" "a8730f002b65f4e070746eece9ce82b892d4c336cb774059c6446674dc73d00e"`
Nov 30 11:05:30.707 INFO [stderr] usermod: no changes
Nov 30 11:05:30.772 INFO [stderr]     Checking flow v0.1.0 (/source)
Nov 30 11:05:31.421 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.421 INFO [stderr]  --> src/main.rs:9:9
Nov 30 11:05:31.421 INFO [stderr]   |
Nov 30 11:05:31.421 INFO [stderr] 9 |     let mut sine     = Sine::new(Node::float(1.0));
Nov 30 11:05:31.421 INFO [stderr]   |         ----^^^^
Nov 30 11:05:31.421 INFO [stderr]   |         |
Nov 30 11:05:31.421 INFO [stderr]   |         help: remove this `mut`
Nov 30 11:05:31.421 INFO [stderr]   |
Nov 30 11:05:31.421 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 30 11:05:31.421 INFO [stderr] 
Nov 30 11:05:31.421 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.421 INFO [stderr]   --> src/main.rs:10:9
Nov 30 11:05:31.421 INFO [stderr]    |
Nov 30 11:05:31.421 INFO [stderr] 10 |     let mut freq     = sine * 440.0 + 880.0;
Nov 30 11:05:31.422 INFO [stderr]    |         ----^^^^
Nov 30 11:05:31.422 INFO [stderr]    |         |
Nov 30 11:05:31.422 INFO [stderr]    |         help: remove this `mut`
Nov 30 11:05:31.422 INFO [stderr] 
Nov 30 11:05:31.422 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.422 INFO [stderr]   --> src/main.rs:11:9
Nov 30 11:05:31.422 INFO [stderr]    |
Nov 30 11:05:31.422 INFO [stderr] 11 |     let mut saw      = Saw::new(freq);
Nov 30 11:05:31.422 INFO [stderr]    |         ----^^^
Nov 30 11:05:31.422 INFO [stderr]    |         |
Nov 30 11:05:31.422 INFO [stderr]    |         help: remove this `mut`
Nov 30 11:05:31.422 INFO [stderr] 
Nov 30 11:05:31.432 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.432 INFO [stderr]   --> src/node/square.rs:12:5
Nov 30 11:05:31.432 INFO [stderr]    |
Nov 30 11:05:31.432 INFO [stderr] 12 |     pub fn new(frequency: Box<Node>, duty: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.432 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.432 INFO [stderr]    |
Nov 30 11:05:31.432 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:05:31.432 INFO [stderr] 
Nov 30 11:05:31.432 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.432 INFO [stderr]   --> src/node/add.rs:11:5
Nov 30 11:05:31.432 INFO [stderr]    |
Nov 30 11:05:31.432 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.432 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.432 INFO [stderr] 
Nov 30 11:05:31.432 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.432 INFO [stderr]   --> src/node/mul.rs:11:5
Nov 30 11:05:31.432 INFO [stderr]    |
Nov 30 11:05:31.432 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.432 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.433 INFO [stderr] 
Nov 30 11:05:31.668 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.668 INFO [stderr]  --> src/main.rs:9:9
Nov 30 11:05:31.668 INFO [stderr]   |
Nov 30 11:05:31.668 INFO [stderr] 9 |     let mut sine     = Sine::new(Node::float(1.0));
Nov 30 11:05:31.668 INFO [stderr]   |         ----^^^^
Nov 30 11:05:31.668 INFO [stderr]   |         |
Nov 30 11:05:31.668 INFO [stderr]   |         help: remove this `mut`
Nov 30 11:05:31.668 INFO [stderr]   |
Nov 30 11:05:31.668 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 30 11:05:31.668 INFO [stderr] 
Nov 30 11:05:31.668 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.668 INFO [stderr]   --> src/main.rs:10:9
Nov 30 11:05:31.668 INFO [stderr]    |
Nov 30 11:05:31.669 INFO [stderr] 10 |     let mut freq     = sine * 440.0 + 880.0;
Nov 30 11:05:31.669 INFO [stderr]    |         ----^^^^
Nov 30 11:05:31.669 INFO [stderr]    |         |
Nov 30 11:05:31.669 INFO [stderr]    |         help: remove this `mut`
Nov 30 11:05:31.669 INFO [stderr] 
Nov 30 11:05:31.669 INFO [stderr] warning: variable does not need to be mutable
Nov 30 11:05:31.669 INFO [stderr]   --> src/main.rs:11:9
Nov 30 11:05:31.669 INFO [stderr]    |
Nov 30 11:05:31.669 INFO [stderr] 11 |     let mut saw      = Saw::new(freq);
Nov 30 11:05:31.669 INFO [stderr]    |         ----^^^
Nov 30 11:05:31.669 INFO [stderr]    |         |
Nov 30 11:05:31.669 INFO [stderr]    |         help: remove this `mut`
Nov 30 11:05:31.669 INFO [stderr] 
Nov 30 11:05:31.676 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.676 INFO [stderr]   --> src/node/square.rs:12:5
Nov 30 11:05:31.676 INFO [stderr]    |
Nov 30 11:05:31.676 INFO [stderr] 12 |     pub fn new(frequency: Box<Node>, duty: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.676 INFO [stderr]    |
Nov 30 11:05:31.676 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 11:05:31.676 INFO [stderr] 
Nov 30 11:05:31.676 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.676 INFO [stderr]   --> src/node/add.rs:11:5
Nov 30 11:05:31.676 INFO [stderr]    |
Nov 30 11:05:31.676 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.676 INFO [stderr] 
Nov 30 11:05:31.676 INFO [stderr] warning: method is never used: `new`
Nov 30 11:05:31.676 INFO [stderr]   --> src/node/mul.rs:11:5
Nov 30 11:05:31.676 INFO [stderr]    |
Nov 30 11:05:31.677 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Nov 30 11:05:31.677 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 11:05:31.677 INFO [stderr] 
Nov 30 11:05:31.732 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Nov 30 11:05:31.732 INFO [stderr] su: No module specific data is present
Nov 30 11:05:32.474 INFO running `"docker" "inspect" "a8730f002b65f4e070746eece9ce82b892d4c336cb774059c6446674dc73d00e"`
Nov 30 11:05:32.736 INFO running `"docker" "rm" "-f" "a8730f002b65f4e070746eece9ce82b892d4c336cb774059c6446674dc73d00e"`
Nov 30 11:05:33.012 INFO [stdout] a8730f002b65f4e070746eece9ce82b892d4c336cb774059c6446674dc73d00e