Dec 19 13:47:56.958 INFO checking lbcdec/lbcdec against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:47:56.958 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/lbcdec/lbcdec:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:47:57.121 INFO [stdout] 4e7534f6a00ff0036553439f4d3f8268ca42cbe3fdaee77dd192e4566b7ef25f
Dec 19 13:47:57.123 INFO running `"docker" "start" "-a" "4e7534f6a00ff0036553439f4d3f8268ca42cbe3fdaee77dd192e4566b7ef25f"`
Dec 19 13:47:57.805 INFO [stderr]     Checking obstack v0.1.3
Dec 19 13:47:57.807 INFO [stderr]     Checking rand v0.5.4
Dec 19 13:47:57.807 INFO [stderr]     Checking clap v2.32.0
Dec 19 13:47:57.807 INFO [stderr]     Checking rayon-core v1.4.1
Dec 19 13:47:57.807 INFO [stderr]     Checking env_logger v0.5.10
Dec 19 13:47:58.606 INFO [stderr]     Checking rayon v1.0.2
Dec 19 13:48:00.680 INFO [stderr]     Checking tempfile v3.0.3
Dec 19 13:48:04.648 INFO [stderr]     Checking lbcdec v0.1.0 (/opt/crater/workdir)
Dec 19 13:48:05.468 INFO [stderr] warning: unused import: `obstack`
Dec 19 13:48:05.468 INFO [stderr]  --> src/ast/mod.rs:6:5
Dec 19 13:48:05.468 INFO [stderr]   |
Dec 19 13:48:05.468 INFO [stderr] 6 | use obstack;
Dec 19 13:48:05.468 INFO [stderr]   |     ^^^^^^^
Dec 19 13:48:05.468 INFO [stderr]   |
Dec 19 13:48:05.468 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:48:05.468 INFO [stderr] 
Dec 19 13:48:05.604 INFO [stderr] warning: unused import: `obstack`
Dec 19 13:48:05.604 INFO [stderr]  --> src/ast/mod.rs:6:5
Dec 19 13:48:05.604 INFO [stderr]   |
Dec 19 13:48:05.604 INFO [stderr] 6 | use obstack;
Dec 19 13:48:05.604 INFO [stderr]   |     ^^^^^^^
Dec 19 13:48:05.604 INFO [stderr]   |
Dec 19 13:48:05.604 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:48:05.604 INFO [stderr] 
Dec 19 13:48:07.328 INFO [stderr] warning: private type `ast::Block<'ctx>` in public interface (error E0446)
Dec 19 13:48:07.328 INFO [stderr]   --> src/ast/mod.rs:65:10
Dec 19 13:48:07.328 INFO [stderr]    |
Dec 19 13:48:07.328 INFO [stderr] 65 |     Do { block: Block<'ctx> }
Dec 19 13:48:07.328 INFO [stderr]    |          ^^^^^^^^^^^^^^^^^^
Dec 19 13:48:07.328 INFO [stderr]    |
Dec 19 13:48:07.328 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 19 13:48:07.328 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:48:07.328 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:48:07.328 INFO [stderr] 
Dec 19 13:48:07.344 INFO [stderr] warning: unreachable pattern
Dec 19 13:48:07.344 INFO [stderr]     --> src/view_context/mod.rs:1408:29
Dec 19 13:48:07.344 INFO [stderr]      |
Dec 19 13:48:07.344 INFO [stderr] 1408 |                 ref instr @ _ => panic!("Unimplemented instruction: {:?}", instr),
Dec 19 13:48:07.344 INFO [stderr]      |                             ^
Dec 19 13:48:07.344 INFO [stderr]      |
Dec 19 13:48:07.344 INFO [stderr]      = note: #[warn(unreachable_patterns)] on by default
Dec 19 13:48:07.344 INFO [stderr] 
Dec 19 13:48:07.448 INFO [stderr] warning: private type `ast::Block<'ctx>` in public interface (error E0446)
Dec 19 13:48:07.448 INFO [stderr]   --> src/ast/mod.rs:65:10
Dec 19 13:48:07.448 INFO [stderr]    |
Dec 19 13:48:07.448 INFO [stderr] 65 |     Do { block: Block<'ctx> }
Dec 19 13:48:07.448 INFO [stderr]    |          ^^^^^^^^^^^^^^^^^^
Dec 19 13:48:07.448 INFO [stderr]    |
Dec 19 13:48:07.448 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 19 13:48:07.448 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:48:07.448 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:48:07.448 INFO [stderr] 
Dec 19 13:48:07.476 INFO [stderr] warning: unreachable pattern
Dec 19 13:48:07.476 INFO [stderr]     --> src/view_context/mod.rs:1408:29
Dec 19 13:48:07.476 INFO [stderr]      |
Dec 19 13:48:07.476 INFO [stderr] 1408 |                 ref instr @ _ => panic!("Unimplemented instruction: {:?}", instr),
Dec 19 13:48:07.476 INFO [stderr]      |                             ^
Dec 19 13:48:07.476 INFO [stderr]      |
Dec 19 13:48:07.476 INFO [stderr]      = note: #[warn(unreachable_patterns)] on by default
Dec 19 13:48:07.476 INFO [stderr] 
Dec 19 13:48:08.153 INFO [stderr] warning: struct is never constructed: `ASTContext`
Dec 19 13:48:08.153 INFO [stderr]  --> src/ast/mod.rs:9:1
Dec 19 13:48:08.153 INFO [stderr]   |
Dec 19 13:48:08.153 INFO [stderr] 9 | struct ASTContext {
Dec 19 13:48:08.153 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.153 INFO [stderr]   |
Dec 19 13:48:08.153 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 13:48:08.153 INFO [stderr] 
Dec 19 13:48:08.153 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 19 13:48:08.153 INFO [stderr]   --> src/ast/mod.rs:16:1
Dec 19 13:48:08.153 INFO [stderr]    |
Dec 19 13:48:08.153 INFO [stderr] 16 | struct Scope<'parent, 'ctx: 'parent> {
Dec 19 13:48:08.153 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.153 INFO [stderr] 
Dec 19 13:48:08.153 INFO [stderr] warning: struct is never constructed: `Block`
Dec 19 13:48:08.153 INFO [stderr]   --> src/ast/mod.rs:23:1
Dec 19 13:48:08.153 INFO [stderr]    |
Dec 19 13:48:08.153 INFO [stderr] 23 | struct Block<'ctx> {
Dec 19 13:48:08.153 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.153 INFO [stderr] 
Dec 19 13:48:08.153 INFO [stderr] warning: struct is never constructed: `Node`
Dec 19 13:48:08.153 INFO [stderr]   --> src/ast/mod.rs:30:1
Dec 19 13:48:08.153 INFO [stderr]    |
Dec 19 13:48:08.153 INFO [stderr] 30 | struct Node<T: Sized> {
Dec 19 13:48:08.153 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.153 INFO [stderr] 
Dec 19 13:48:08.153 INFO [stderr] warning: struct is never constructed: `StatementNode`
Dec 19 13:48:08.154 INFO [stderr]   --> src/ast/mod.rs:37:1
Dec 19 13:48:08.154 INFO [stderr]    |
Dec 19 13:48:08.154 INFO [stderr] 37 | struct StatementNode<'ctx, T: Sized> {
Dec 19 13:48:08.154 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.154 INFO [stderr] 
Dec 19 13:48:08.154 INFO [stderr] warning: struct is never constructed: `StatLocalDecl`
Dec 19 13:48:08.154 INFO [stderr]   --> src/ast/mod.rs:49:1
Dec 19 13:48:08.154 INFO [stderr]    |
Dec 19 13:48:08.154 INFO [stderr] 49 | pub struct StatLocalDecl { // <'ctx> {
Dec 19 13:48:08.154 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.155 INFO [stderr] 
Dec 19 13:48:08.155 INFO [stderr] warning: enum is never used: `Statement`
Dec 19 13:48:08.155 INFO [stderr]   --> src/ast/mod.rs:63:1
Dec 19 13:48:08.155 INFO [stderr]    |
Dec 19 13:48:08.156 INFO [stderr] 63 | pub enum Statement<'ctx> {
Dec 19 13:48:08.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.156 INFO [stderr] 
Dec 19 13:48:08.157 INFO [stderr] warning: associated const is never used: `VARARGS`
Dec 19 13:48:08.157 INFO [stderr]   --> src/instruction_definitions.rs:90:5
Dec 19 13:48:08.157 INFO [stderr]    |
Dec 19 13:48:08.157 INFO [stderr] 90 |     pub const VARARGS: Count = Count(0);
Dec 19 13:48:08.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.158 INFO [stderr] 
Dec 19 13:48:08.158 INFO [stderr] warning: associated const is never used: `EMPTY`
Dec 19 13:48:08.158 INFO [stderr]   --> src/instruction_definitions.rs:91:5
Dec 19 13:48:08.158 INFO [stderr]    |
Dec 19 13:48:08.158 INFO [stderr] 91 |     pub const EMPTY: Count = Count(1);
Dec 19 13:48:08.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.158 INFO [stderr] 
Dec 19 13:48:08.159 INFO [stderr] warning: field is never used: `a`
Dec 19 13:48:08.159 INFO [stderr]   --> src/instruction_decoder.rs:75:5
Dec 19 13:48:08.159 INFO [stderr]    |
Dec 19 13:48:08.159 INFO [stderr] 75 |     a: u8,
Dec 19 13:48:08.159 INFO [stderr]    |     ^^^^^
Dec 19 13:48:08.159 INFO [stderr] 
Dec 19 13:48:08.160 INFO [stderr] warning: field is never used: `a`
Dec 19 13:48:08.160 INFO [stderr]   --> src/instruction_decoder.rs:89:5
Dec 19 13:48:08.160 INFO [stderr]    |
Dec 19 13:48:08.160 INFO [stderr] 89 |     a: u8,
Dec 19 13:48:08.160 INFO [stderr]    |     ^^^^^
Dec 19 13:48:08.160 INFO [stderr] 
Dec 19 13:48:08.161 INFO [stderr] warning: struct is never constructed: `SetUpvalueViewData`
Dec 19 13:48:08.161 INFO [stderr]   --> src/view/view_data.rs:55:1
Dec 19 13:48:08.161 INFO [stderr]    |
Dec 19 13:48:08.161 INFO [stderr] 55 | pub struct SetUpvalueViewData(pub AssignmentInfo);
Dec 19 13:48:08.161 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.161 INFO [stderr] 
Dec 19 13:48:08.244 INFO [stderr] warning: struct is never constructed: `ASTContext`
Dec 19 13:48:08.244 INFO [stderr]  --> src/ast/mod.rs:9:1
Dec 19 13:48:08.244 INFO [stderr]   |
Dec 19 13:48:08.244 INFO [stderr] 9 | struct ASTContext {
Dec 19 13:48:08.244 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.244 INFO [stderr]   |
Dec 19 13:48:08.244 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 13:48:08.244 INFO [stderr] 
Dec 19 13:48:08.244 INFO [stderr] warning: struct is never constructed: `Scope`
Dec 19 13:48:08.244 INFO [stderr]   --> src/ast/mod.rs:16:1
Dec 19 13:48:08.244 INFO [stderr]    |
Dec 19 13:48:08.244 INFO [stderr] 16 | struct Scope<'parent, 'ctx: 'parent> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: struct is never constructed: `Block`
Dec 19 13:48:08.245 INFO [stderr]   --> src/ast/mod.rs:23:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 23 | struct Block<'ctx> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: struct is never constructed: `Node`
Dec 19 13:48:08.245 INFO [stderr]   --> src/ast/mod.rs:30:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 30 | struct Node<T: Sized> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: struct is never constructed: `StatementNode`
Dec 19 13:48:08.245 INFO [stderr]   --> src/ast/mod.rs:37:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 37 | struct StatementNode<'ctx, T: Sized> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: struct is never constructed: `StatLocalDecl`
Dec 19 13:48:08.245 INFO [stderr]   --> src/ast/mod.rs:49:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 49 | pub struct StatLocalDecl { // <'ctx> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: enum is never used: `Statement`
Dec 19 13:48:08.245 INFO [stderr]   --> src/ast/mod.rs:63:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 63 | pub enum Statement<'ctx> {
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: associated const is never used: `VARARGS`
Dec 19 13:48:08.245 INFO [stderr]   --> src/instruction_definitions.rs:90:5
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 90 |     pub const VARARGS: Count = Count(0);
Dec 19 13:48:08.245 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: associated const is never used: `EMPTY`
Dec 19 13:48:08.245 INFO [stderr]   --> src/instruction_definitions.rs:91:5
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 91 |     pub const EMPTY: Count = Count(1);
Dec 19 13:48:08.245 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: field is never used: `a`
Dec 19 13:48:08.245 INFO [stderr]   --> src/instruction_decoder.rs:75:5
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 75 |     a: u8,
Dec 19 13:48:08.245 INFO [stderr]    |     ^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: field is never used: `a`
Dec 19 13:48:08.245 INFO [stderr]   --> src/instruction_decoder.rs:89:5
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 89 |     a: u8,
Dec 19 13:48:08.245 INFO [stderr]    |     ^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.245 INFO [stderr] warning: struct is never constructed: `SetUpvalueViewData`
Dec 19 13:48:08.245 INFO [stderr]   --> src/view/view_data.rs:55:1
Dec 19 13:48:08.245 INFO [stderr]    |
Dec 19 13:48:08.245 INFO [stderr] 55 | pub struct SetUpvalueViewData(pub AssignmentInfo);
Dec 19 13:48:08.245 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:48:08.245 INFO [stderr] 
Dec 19 13:48:08.340 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.65s
Dec 19 13:48:09.757 INFO running `"docker" "inspect" "4e7534f6a00ff0036553439f4d3f8268ca42cbe3fdaee77dd192e4566b7ef25f"`
Dec 19 13:48:10.012 INFO running `"docker" "rm" "-f" "4e7534f6a00ff0036553439f4d3f8268ca42cbe3fdaee77dd192e4566b7ef25f"`
Dec 19 13:48:10.320 INFO [stdout] 4e7534f6a00ff0036553439f4d3f8268ca42cbe3fdaee77dd192e4566b7ef25f