Dec 18 08:21:59.924 INFO checking BookOwl/stack-machine-rs against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:21:59.924 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/BookOwl/stack-machine-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:22:00.337 INFO [stdout] f7febb0f07041dbbddaa9a8f0037c6bae04661869bf0fbf6c7a992ee02a85a42
Dec 18 08:22:00.344 INFO running `"docker" "start" "-a" "f7febb0f07041dbbddaa9a8f0037c6bae04661869bf0fbf6c7a992ee02a85a42"`
Dec 18 08:22:01.880 INFO [stderr]     Checking stack-machine v0.1.0 (/opt/crater/workdir)
Dec 18 08:22:02.383 INFO [stderr] warning: unused variable: `ipstack`
Dec 18 08:22:02.383 INFO [stderr]    --> src/main.rs:106:13
Dec 18 08:22:02.383 INFO [stderr]     |
Dec 18 08:22:02.383 INFO [stderr] 106 |     let mut ipstack: Vec<usize>  = Vec::new();
Dec 18 08:22:02.383 INFO [stderr]     |             ^^^^^^^ help: consider using `_ipstack` instead
Dec 18 08:22:02.383 INFO [stderr]     |
Dec 18 08:22:02.383 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 08:22:02.383 INFO [stderr] 
Dec 18 08:22:02.383 INFO [stderr] warning: unused variable: `callstack`
Dec 18 08:22:02.383 INFO [stderr]    --> src/main.rs:107:13
Dec 18 08:22:02.383 INFO [stderr]     |
Dec 18 08:22:02.383 INFO [stderr] 107 |     let mut callstack: CallStack = Vec::new();
Dec 18 08:22:02.383 INFO [stderr]     |             ^^^^^^^^^ help: consider using `_callstack` instead
Dec 18 08:22:02.383 INFO [stderr] 
Dec 18 08:22:02.423 INFO [stderr] warning: unused variable: `ipstack`
Dec 18 08:22:02.423 INFO [stderr]    --> src/main.rs:106:13
Dec 18 08:22:02.423 INFO [stderr]     |
Dec 18 08:22:02.423 INFO [stderr] 106 |     let mut ipstack: Vec<usize>  = Vec::new();
Dec 18 08:22:02.423 INFO [stderr]     |             ^^^^^^^ help: consider using `_ipstack` instead
Dec 18 08:22:02.423 INFO [stderr]     |
Dec 18 08:22:02.423 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 08:22:02.423 INFO [stderr] 
Dec 18 08:22:02.423 INFO [stderr] warning: unused variable: `callstack`
Dec 18 08:22:02.423 INFO [stderr]    --> src/main.rs:107:13
Dec 18 08:22:02.423 INFO [stderr]     |
Dec 18 08:22:02.423 INFO [stderr] 107 |     let mut callstack: CallStack = Vec::new();
Dec 18 08:22:02.423 INFO [stderr]     |             ^^^^^^^^^ help: consider using `_callstack` instead
Dec 18 08:22:02.423 INFO [stderr] 
Dec 18 08:22:02.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.429 INFO [stderr]    --> src/main.rs:106:9
Dec 18 08:22:02.429 INFO [stderr]     |
Dec 18 08:22:02.429 INFO [stderr] 106 |     let mut ipstack: Vec<usize>  = Vec::new();
Dec 18 08:22:02.429 INFO [stderr]     |         ----^^^^^^^
Dec 18 08:22:02.429 INFO [stderr]     |         |
Dec 18 08:22:02.429 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.429 INFO [stderr]     |
Dec 18 08:22:02.429 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 08:22:02.429 INFO [stderr] 
Dec 18 08:22:02.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.429 INFO [stderr]    --> src/main.rs:107:9
Dec 18 08:22:02.429 INFO [stderr]     |
Dec 18 08:22:02.429 INFO [stderr] 107 |     let mut callstack: CallStack = Vec::new();
Dec 18 08:22:02.429 INFO [stderr]     |         ----^^^^^^^^^
Dec 18 08:22:02.429 INFO [stderr]     |         |
Dec 18 08:22:02.429 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.430 INFO [stderr] 
Dec 18 08:22:02.430 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.430 INFO [stderr]    --> src/main.rs:110:9
Dec 18 08:22:02.430 INFO [stderr]     |
Dec 18 08:22:02.430 INFO [stderr] 110 |     let mut current_frame = program.frame_info.get("main").ok_or(Error::NoMain)?;
Dec 18 08:22:02.430 INFO [stderr]     |         ----^^^^^^^^^^^^^
Dec 18 08:22:02.430 INFO [stderr]     |         |
Dec 18 08:22:02.430 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.430 INFO [stderr] 
Dec 18 08:22:02.431 INFO [stderr] warning: variant is never constructed: `Add`
Dec 18 08:22:02.431 INFO [stderr]   --> src/main.rs:19:5
Dec 18 08:22:02.431 INFO [stderr]    |
Dec 18 08:22:02.432 INFO [stderr] 19 |     Add,
Dec 18 08:22:02.432 INFO [stderr]    |     ^^^
Dec 18 08:22:02.432 INFO [stderr]    |
Dec 18 08:22:02.432 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 08:22:02.433 INFO [stderr] 
Dec 18 08:22:02.433 INFO [stderr] warning: variant is never constructed: `Mul`
Dec 18 08:22:02.433 INFO [stderr]   --> src/main.rs:21:5
Dec 18 08:22:02.433 INFO [stderr]    |
Dec 18 08:22:02.433 INFO [stderr] 21 |     Mul,
Dec 18 08:22:02.433 INFO [stderr]    |     ^^^
Dec 18 08:22:02.433 INFO [stderr] 
Dec 18 08:22:02.433 INFO [stderr] warning: variant is never constructed: `IntDiv`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:22:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 22 |     IntDiv,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: variant is never constructed: `Equal`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:24:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 24 |     Equal,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: variant is never constructed: `Less`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:25:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 25 |     Less,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: variant is never constructed: `Greater`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:26:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 26 |     Greater,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: variant is never constructed: `LessEq`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:27:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 27 |     LessEq,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: variant is never constructed: `GreaterEq`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:28:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 28 |     GreaterEq,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.434 INFO [stderr] warning: field is never used: `num_bindings`
Dec 18 08:22:02.434 INFO [stderr]   --> src/main.rs:52:5
Dec 18 08:22:02.434 INFO [stderr]    |
Dec 18 08:22:02.434 INFO [stderr] 52 |     num_bindings: usize,
Dec 18 08:22:02.434 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 08:22:02.434 INFO [stderr] 
Dec 18 08:22:02.536 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.536 INFO [stderr]    --> src/main.rs:106:9
Dec 18 08:22:02.537 INFO [stderr]     |
Dec 18 08:22:02.537 INFO [stderr] 106 |     let mut ipstack: Vec<usize>  = Vec::new();
Dec 18 08:22:02.537 INFO [stderr]     |         ----^^^^^^^
Dec 18 08:22:02.537 INFO [stderr]     |         |
Dec 18 08:22:02.537 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.537 INFO [stderr]     |
Dec 18 08:22:02.537 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.537 INFO [stderr]    --> src/main.rs:107:9
Dec 18 08:22:02.537 INFO [stderr]     |
Dec 18 08:22:02.537 INFO [stderr] 107 |     let mut callstack: CallStack = Vec::new();
Dec 18 08:22:02.537 INFO [stderr]     |         ----^^^^^^^^^
Dec 18 08:22:02.537 INFO [stderr]     |         |
Dec 18 08:22:02.537 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:22:02.537 INFO [stderr]    --> src/main.rs:110:9
Dec 18 08:22:02.537 INFO [stderr]     |
Dec 18 08:22:02.537 INFO [stderr] 110 |     let mut current_frame = program.frame_info.get("main").ok_or(Error::NoMain)?;
Dec 18 08:22:02.537 INFO [stderr]     |         ----^^^^^^^^^^^^^
Dec 18 08:22:02.537 INFO [stderr]     |         |
Dec 18 08:22:02.537 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `Add`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:19:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 19 |     Add,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `Mul`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:21:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 21 |     Mul,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `IntDiv`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:22:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 22 |     IntDiv,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `Equal`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:24:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 24 |     Equal,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `Less`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:25:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 25 |     Less,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `Greater`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:26:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 26 |     Greater,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `LessEq`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:27:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 27 |     LessEq,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: variant is never constructed: `GreaterEq`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:28:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 28 |     GreaterEq,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.537 INFO [stderr] warning: field is never used: `num_bindings`
Dec 18 08:22:02.537 INFO [stderr]   --> src/main.rs:52:5
Dec 18 08:22:02.537 INFO [stderr]    |
Dec 18 08:22:02.537 INFO [stderr] 52 |     num_bindings: usize,
Dec 18 08:22:02.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 08:22:02.537 INFO [stderr] 
Dec 18 08:22:02.608 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 18 08:22:03.034 INFO running `"docker" "inspect" "f7febb0f07041dbbddaa9a8f0037c6bae04661869bf0fbf6c7a992ee02a85a42"`
Dec 18 08:22:03.138 INFO running `"docker" "rm" "-f" "f7febb0f07041dbbddaa9a8f0037c6bae04661869bf0fbf6c7a992ee02a85a42"`
Dec 18 08:22:03.278 INFO [stdout] f7febb0f07041dbbddaa9a8f0037c6bae04661869bf0fbf6c7a992ee02a85a42