[INFO] updating cached repository https://github.com/pigeon-project/white_face
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f6f40492bc12e8d7a37647ab8c590c29210e702
[INFO] testing pigeon-project/white_face against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-project%2Fwhite_face" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pigeon-project/white_face on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pigeon-project/white_face
[INFO] finished tweaking git repo https://github.com/pigeon-project/white_face
[INFO] tweaked toml for git repo https://github.com/pigeon-project/white_face written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/pigeon-project/white_face already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b143cebf1c776747b4a56a15c602595c879f4e20fd6eb827896d5e3f310845f
[INFO] running `"docker" "start" "-a" "1b143cebf1c776747b4a56a15c602595c879f4e20fd6eb827896d5e3f310845f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling white_face v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Hash`, `Hasher`
[INFO] [stderr]  --> src/utils.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/utils.rs:2:33
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::NonNull`
[INFO] [stderr]  --> src/utils.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ptr::NonNull;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/utils.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Mutex`
[INFO] [stderr]  --> src/context.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, RwLock, Mutex, Weak};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InternString`
[INFO] [stderr]  --> src/context.rs:9:32
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::utils::{InternPool, InternString};
[INFO] [stderr]   |                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TypeInfo`
[INFO] [stderr]   --> src/context.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::mata_info::{TypeInfo, FuncInfo, ModuleInfo};
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `guir::GuIr`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use guir::GuIr;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem::size_of`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::mem::size_of;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let s = std::thread::Builder::new().name("c1".to_string()).spawn(||{});
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module_path`
[INFO] [stderr]   --> src/context.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternPool`
[INFO] [stderr]   --> src/utils.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct InternPool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/utils.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `alloc`
[INFO] [stderr]   --> src/utils.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn alloc(&mut self, i: &str) -> InternString {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from`
[INFO] [stderr]   --> src/utils.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn from(handle: &mut InternPool, i: &str) -> Self {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `GuIrCode`
[INFO] [stderr]  --> src/guir.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum GuIrCode {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `OperType`
[INFO] [stderr]   --> src/guir.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum OperType {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Frame`
[INFO] [stderr]   --> src/context.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Frame {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ProcessContext`
[INFO] [stderr]   --> src/context.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct ProcessContext {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VMContext`
[INFO] [stderr]   --> src/context.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct VMContext {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/context.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `load_module`
[INFO] [stderr]   --> src/context.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U8`
[INFO] [stderr]   --> src/mata_info.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     U8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I8`
[INFO] [stderr]   --> src/mata_info.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     I8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U16`
[INFO] [stderr]   --> src/mata_info.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     U16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I16`
[INFO] [stderr]   --> src/mata_info.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     I16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U32`
[INFO] [stderr]   --> src/mata_info.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     U32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I32`
[INFO] [stderr]   --> src/mata_info.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     I32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U64`
[INFO] [stderr]   --> src/mata_info.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     U64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I64`
[INFO] [stderr]   --> src/mata_info.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     I64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float32`
[INFO] [stderr]   --> src/mata_info.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Float32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float64`
[INFO] [stderr]   --> src/mata_info.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Float64,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Struct`
[INFO] [stderr]   --> src/mata_info.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Struct(Arc<TypeStruct>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Reference`
[INFO] [stderr]   --> src/mata_info.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Reference(Option<Arc<TypeInfo>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceError`
[INFO] [stderr]  --> src/exec_engine.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type WhiteFaceError = (u16, String);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceResult`
[INFO] [stderr]   --> src/exec_engine.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | type WhiteFaceResult = Result<Option<u64>, WhiteFaceError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_stack_frame`
[INFO] [stderr]   --> src/exec_engine.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn apply_stack_frame(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exec`
[INFO] [stderr]   --> src/exec_engine.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn exec(context: Arc<ProcessContext>, ir: GuIr) -> WhiteFaceResult {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `"docker" "inspect" "1b143cebf1c776747b4a56a15c602595c879f4e20fd6eb827896d5e3f310845f"`
[INFO] running `"docker" "rm" "-f" "1b143cebf1c776747b4a56a15c602595c879f4e20fd6eb827896d5e3f310845f"`
[INFO] [stdout] 1b143cebf1c776747b4a56a15c602595c879f4e20fd6eb827896d5e3f310845f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b962b630be9988040cc1e3fdb0660f309774f596b909e43b9eda46e43757eaa4
[INFO] running `"docker" "start" "-a" "b962b630be9988040cc1e3fdb0660f309774f596b909e43b9eda46e43757eaa4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling white_face v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Hash`, `Hasher`
[INFO] [stderr]  --> src/utils.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/utils.rs:2:33
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::NonNull`
[INFO] [stderr]  --> src/utils.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ptr::NonNull;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/utils.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Mutex`
[INFO] [stderr]  --> src/context.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, RwLock, Mutex, Weak};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InternString`
[INFO] [stderr]  --> src/context.rs:9:32
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::utils::{InternPool, InternString};
[INFO] [stderr]   |                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TypeInfo`
[INFO] [stderr]   --> src/context.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::mata_info::{TypeInfo, FuncInfo, ModuleInfo};
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let s = std::thread::Builder::new().name("c1".to_string()).spawn(||{});
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module_path`
[INFO] [stderr]   --> src/context.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternPool`
[INFO] [stderr]   --> src/utils.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct InternPool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/utils.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `alloc`
[INFO] [stderr]   --> src/utils.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn alloc(&mut self, i: &str) -> InternString {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from`
[INFO] [stderr]   --> src/utils.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn from(handle: &mut InternPool, i: &str) -> Self {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `GuIrCode`
[INFO] [stderr]  --> src/guir.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum GuIrCode {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `OperType`
[INFO] [stderr]   --> src/guir.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum OperType {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Frame`
[INFO] [stderr]   --> src/context.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Frame {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ProcessContext`
[INFO] [stderr]   --> src/context.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct ProcessContext {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VMContext`
[INFO] [stderr]   --> src/context.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct VMContext {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/context.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `load_module`
[INFO] [stderr]   --> src/context.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U8`
[INFO] [stderr]   --> src/mata_info.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     U8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I8`
[INFO] [stderr]   --> src/mata_info.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     I8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U16`
[INFO] [stderr]   --> src/mata_info.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     U16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I16`
[INFO] [stderr]   --> src/mata_info.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     I16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U32`
[INFO] [stderr]   --> src/mata_info.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     U32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I32`
[INFO] [stderr]   --> src/mata_info.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     I32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U64`
[INFO] [stderr]   --> src/mata_info.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     U64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I64`
[INFO] [stderr]   --> src/mata_info.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     I64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float32`
[INFO] [stderr]   --> src/mata_info.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Float32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float64`
[INFO] [stderr]   --> src/mata_info.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Float64,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Struct`
[INFO] [stderr]   --> src/mata_info.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Struct(Arc<TypeStruct>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Reference`
[INFO] [stderr]   --> src/mata_info.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Reference(Option<Arc<TypeInfo>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceError`
[INFO] [stderr]  --> src/exec_engine.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type WhiteFaceError = (u16, String);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceResult`
[INFO] [stderr]   --> src/exec_engine.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | type WhiteFaceResult = Result<Option<u64>, WhiteFaceError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_stack_frame`
[INFO] [stderr]   --> src/exec_engine.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn apply_stack_frame(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exec`
[INFO] [stderr]   --> src/exec_engine.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn exec(context: Arc<ProcessContext>, ir: GuIr) -> WhiteFaceResult {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "b962b630be9988040cc1e3fdb0660f309774f596b909e43b9eda46e43757eaa4"`
[INFO] running `"docker" "rm" "-f" "b962b630be9988040cc1e3fdb0660f309774f596b909e43b9eda46e43757eaa4"`
[INFO] [stdout] b962b630be9988040cc1e3fdb0660f309774f596b909e43b9eda46e43757eaa4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1cbb06d1df40ef9c197985e9df2adfd38897573ae1ecb3e0f2f2a3b89efe523d
[INFO] running `"docker" "start" "-a" "1cbb06d1df40ef9c197985e9df2adfd38897573ae1ecb3e0f2f2a3b89efe523d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused imports: `Hash`, `Hasher`
[INFO] [stderr]  --> src/utils.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/utils.rs:2:33
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::NonNull`
[INFO] [stderr]  --> src/utils.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ptr::NonNull;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/utils.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Mutex`
[INFO] [stderr]  --> src/context.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, RwLock, Mutex, Weak};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InternString`
[INFO] [stderr]  --> src/context.rs:9:32
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::utils::{InternPool, InternString};
[INFO] [stderr]   |                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TypeInfo`
[INFO] [stderr]   --> src/context.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::mata_info::{TypeInfo, FuncInfo, ModuleInfo};
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let s = std::thread::Builder::new().name("c1".to_string()).spawn(||{});
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `module_path`
[INFO] [stderr]   --> src/context.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_module_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternPool`
[INFO] [stderr]   --> src/utils.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct InternPool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/utils.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `alloc`
[INFO] [stderr]   --> src/utils.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn alloc(&mut self, i: &str) -> InternString {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from`
[INFO] [stderr]   --> src/utils.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn from(handle: &mut InternPool, i: &str) -> Self {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `GuIrCode`
[INFO] [stderr]  --> src/guir.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum GuIrCode {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `OperType`
[INFO] [stderr]   --> src/guir.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum OperType {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Frame`
[INFO] [stderr]   --> src/context.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Frame {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ProcessContext`
[INFO] [stderr]   --> src/context.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct ProcessContext {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VMContext`
[INFO] [stderr]   --> src/context.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct VMContext {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/context.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `load_module`
[INFO] [stderr]   --> src/context.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U8`
[INFO] [stderr]   --> src/mata_info.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     U8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I8`
[INFO] [stderr]   --> src/mata_info.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     I8,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U16`
[INFO] [stderr]   --> src/mata_info.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     U16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I16`
[INFO] [stderr]   --> src/mata_info.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     I16,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U32`
[INFO] [stderr]   --> src/mata_info.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     U32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I32`
[INFO] [stderr]   --> src/mata_info.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     I32,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U64`
[INFO] [stderr]   --> src/mata_info.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     U64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `I64`
[INFO] [stderr]   --> src/mata_info.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     I64,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float32`
[INFO] [stderr]   --> src/mata_info.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Float32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float64`
[INFO] [stderr]   --> src/mata_info.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Float64,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Struct`
[INFO] [stderr]   --> src/mata_info.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Struct(Arc<TypeStruct>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Reference`
[INFO] [stderr]   --> src/mata_info.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Reference(Option<Arc<TypeInfo>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceError`
[INFO] [stderr]  --> src/exec_engine.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type WhiteFaceError = (u16, String);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `WhiteFaceResult`
[INFO] [stderr]   --> src/exec_engine.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | type WhiteFaceResult = Result<Option<u64>, WhiteFaceError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `apply_stack_frame`
[INFO] [stderr]   --> src/exec_engine.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn apply_stack_frame(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `exec`
[INFO] [stderr]   --> src/exec_engine.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn exec(context: Arc<ProcessContext>, ir: GuIr) -> WhiteFaceResult {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/white_face-1b1363e1be5a2fa7
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test print_debug_info ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1cbb06d1df40ef9c197985e9df2adfd38897573ae1ecb3e0f2f2a3b89efe523d"`
[INFO] running `"docker" "rm" "-f" "1cbb06d1df40ef9c197985e9df2adfd38897573ae1ecb3e0f2f2a3b89efe523d"`
[INFO] [stdout] 1cbb06d1df40ef9c197985e9df2adfd38897573ae1ecb3e0f2f2a3b89efe523d