Dec 12 02:49:53.027 INFO checking FlatBartender/flow against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 02:49:53.027 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 12 02:49:53.438 INFO [stdout] 8b0c5f447c4d604892ca6f64bde753ea36c825eaf00c780b9ca9174b3ad177c2
Dec 12 02:49:53.446 INFO running `"docker" "start" "-a" "8b0c5f447c4d604892ca6f64bde753ea36c825eaf00c780b9ca9174b3ad177c2"`
Dec 12 02:49:54.816 INFO [stderr] usermod: no changes
Dec 12 02:49:54.876 INFO [stderr]     Checking flow v0.1.0 (/source)
Dec 12 02:49:55.540 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.540 INFO [stderr]  --> src/main.rs:9:9
Dec 12 02:49:55.540 INFO [stderr]   |
Dec 12 02:49:55.540 INFO [stderr] 9 |     let mut sine     = Sine::new(Node::float(1.0));
Dec 12 02:49:55.540 INFO [stderr]   |         ----^^^^
Dec 12 02:49:55.540 INFO [stderr]   |         |
Dec 12 02:49:55.540 INFO [stderr]   |         help: remove this `mut`
Dec 12 02:49:55.540 INFO [stderr]   |
Dec 12 02:49:55.540 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 12 02:49:55.540 INFO [stderr] 
Dec 12 02:49:55.540 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.540 INFO [stderr]   --> src/main.rs:10:9
Dec 12 02:49:55.540 INFO [stderr]    |
Dec 12 02:49:55.540 INFO [stderr] 10 |     let mut freq     = sine * 440.0 + 880.0;
Dec 12 02:49:55.540 INFO [stderr]    |         ----^^^^
Dec 12 02:49:55.540 INFO [stderr]    |         |
Dec 12 02:49:55.540 INFO [stderr]    |         help: remove this `mut`
Dec 12 02:49:55.540 INFO [stderr] 
Dec 12 02:49:55.540 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.540 INFO [stderr]   --> src/main.rs:11:9
Dec 12 02:49:55.540 INFO [stderr]    |
Dec 12 02:49:55.540 INFO [stderr] 11 |     let mut saw      = Saw::new(freq);
Dec 12 02:49:55.540 INFO [stderr]    |         ----^^^
Dec 12 02:49:55.540 INFO [stderr]    |         |
Dec 12 02:49:55.540 INFO [stderr]    |         help: remove this `mut`
Dec 12 02:49:55.540 INFO [stderr] 
Dec 12 02:49:55.552 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.552 INFO [stderr]   --> src/node/square.rs:12:5
Dec 12 02:49:55.552 INFO [stderr]    |
Dec 12 02:49:55.552 INFO [stderr] 12 |     pub fn new(frequency: Box<Node>, duty: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.552 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.552 INFO [stderr]    |
Dec 12 02:49:55.552 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 02:49:55.552 INFO [stderr] 
Dec 12 02:49:55.552 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.552 INFO [stderr]   --> src/node/add.rs:11:5
Dec 12 02:49:55.552 INFO [stderr]    |
Dec 12 02:49:55.552 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.552 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.552 INFO [stderr] 
Dec 12 02:49:55.552 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.552 INFO [stderr]   --> src/node/mul.rs:11:5
Dec 12 02:49:55.552 INFO [stderr]    |
Dec 12 02:49:55.552 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.552 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.552 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.908 INFO [stderr]  --> src/main.rs:9:9
Dec 12 02:49:55.908 INFO [stderr]   |
Dec 12 02:49:55.908 INFO [stderr] 9 |     let mut sine     = Sine::new(Node::float(1.0));
Dec 12 02:49:55.908 INFO [stderr]   |         ----^^^^
Dec 12 02:49:55.908 INFO [stderr]   |         |
Dec 12 02:49:55.908 INFO [stderr]   |         help: remove this `mut`
Dec 12 02:49:55.908 INFO [stderr]   |
Dec 12 02:49:55.908 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.908 INFO [stderr]   --> src/main.rs:10:9
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr] 10 |     let mut freq     = sine * 440.0 + 880.0;
Dec 12 02:49:55.908 INFO [stderr]    |         ----^^^^
Dec 12 02:49:55.908 INFO [stderr]    |         |
Dec 12 02:49:55.908 INFO [stderr]    |         help: remove this `mut`
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: variable does not need to be mutable
Dec 12 02:49:55.908 INFO [stderr]   --> src/main.rs:11:9
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr] 11 |     let mut saw      = Saw::new(freq);
Dec 12 02:49:55.908 INFO [stderr]    |         ----^^^
Dec 12 02:49:55.908 INFO [stderr]    |         |
Dec 12 02:49:55.908 INFO [stderr]    |         help: remove this `mut`
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.908 INFO [stderr]   --> src/node/square.rs:12:5
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr] 12 |     pub fn new(frequency: Box<Node>, duty: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.908 INFO [stderr]   --> src/node/add.rs:11:5
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.908 INFO [stderr] warning: method is never used: `new`
Dec 12 02:49:55.908 INFO [stderr]   --> src/node/mul.rs:11:5
Dec 12 02:49:55.908 INFO [stderr]    |
Dec 12 02:49:55.908 INFO [stderr] 11 |     pub fn new(term_a: Box<Node>, term_b: Box<Node>) -> Box<Node> {
Dec 12 02:49:55.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:49:55.908 INFO [stderr] 
Dec 12 02:49:55.956 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Dec 12 02:49:55.956 INFO [stderr] su: No module specific data is present
Dec 12 02:49:56.720 INFO running `"docker" "inspect" "8b0c5f447c4d604892ca6f64bde753ea36c825eaf00c780b9ca9174b3ad177c2"`
Dec 12 02:49:56.955 INFO running `"docker" "rm" "-f" "8b0c5f447c4d604892ca6f64bde753ea36c825eaf00c780b9ca9174b3ad177c2"`
Dec 12 02:49:57.343 INFO [stdout] 8b0c5f447c4d604892ca6f64bde753ea36c825eaf00c780b9ca9174b3ad177c2