[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] c90bb1943097dc3e4e8e55ab79f8b22a00452669
[INFO] checking pigeon-project/white_face against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-project%2Fwhite_face" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pigeon-project/white_face on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "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-6/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" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 02c69627546b39652c4c12520e7016534dd5c5394dd4dd7664a7122fa8258518
[INFO] running `"docker" "start" "-a" "02c69627546b39652c4c12520e7016534dd5c5394dd4dd7664a7122fa8258518"`
[INFO] [stderr]     Checking 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: `std::thread`
[INFO] [stderr]  --> src/context.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]  --> src/context.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, RwLock};
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libloading::Library`
[INFO] [stderr]  --> src/context.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use libloading::Library;
[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: consider prefixing 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: consider prefixing with an underscore: `_module_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternString`
[INFO] [stderr]  --> src/utils.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct InternString (pub Rc<String>);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternPool`
[INFO] [stderr]   --> src/utils.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct InternPool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/utils.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `alloc`
[INFO] [stderr]   --> src/utils.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn alloc(&mut self, i: &str) -> InternString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]   --> src/utils.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     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:33:10
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub enum OperType {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GuIr`
[INFO] [stderr]   --> src/guir.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct GuIr (u16, u16, u32);
[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: `ThreadContext`
[INFO] [stderr]   --> src/context.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct ThreadContext {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VMContext`
[INFO] [stderr]   --> src/context.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct VMContext {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/context.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_module`
[INFO] [stderr]   --> src/context.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FuncTypeInfo`
[INFO] [stderr]  --> src/mata_info.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct FuncTypeInfo (pub Vec<TypeInfo>);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TypeInfo`
[INFO] [stderr]  --> src/mata_info.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum TypeInfo {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `PNfI`
[INFO] [stderr]   --> src/mata_info.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | type PNfI = extern "C" fn(u64, * const u64) -> u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FuncInfo`
[INFO] [stderr]   --> src/mata_info.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct FuncInfo {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ModuleInfo`
[INFO] [stderr]   --> src/mata_info.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct ModuleInfo {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[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: `std::thread`
[INFO] [stderr]  --> src/context.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]  --> src/context.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, RwLock};
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libloading::Library`
[INFO] [stderr]  --> src/context.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use libloading::Library;
[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: consider prefixing 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: consider prefixing with an underscore: `_module_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternString`
[INFO] [stderr]  --> src/utils.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct InternString (pub Rc<String>);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InternPool`
[INFO] [stderr]   --> src/utils.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct InternPool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/utils.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `alloc`
[INFO] [stderr]   --> src/utils.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn alloc(&mut self, i: &str) -> InternString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]   --> src/utils.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     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:33:10
[INFO] [stderr]    |
[INFO] [stderr] 33 | 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: `ThreadContext`
[INFO] [stderr]   --> src/context.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct ThreadContext {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VMContext`
[INFO] [stderr]   --> src/context.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct VMContext {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/context.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_module`
[INFO] [stderr]   --> src/context.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_module(&mut self, module_path: &Path) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FuncTypeInfo`
[INFO] [stderr]  --> src/mata_info.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct FuncTypeInfo (pub Vec<TypeInfo>);
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TypeInfo`
[INFO] [stderr]  --> src/mata_info.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum TypeInfo {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `PNfI`
[INFO] [stderr]   --> src/mata_info.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | type PNfI = extern "C" fn(u64, * const u64) -> u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FuncInfo`
[INFO] [stderr]   --> src/mata_info.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct FuncInfo {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ModuleInfo`
[INFO] [stderr]   --> src/mata_info.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct ModuleInfo {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "02c69627546b39652c4c12520e7016534dd5c5394dd4dd7664a7122fa8258518"`
[INFO] running `"docker" "rm" "-f" "02c69627546b39652c4c12520e7016534dd5c5394dd4dd7664a7122fa8258518"`
[INFO] [stdout] 02c69627546b39652c4c12520e7016534dd5c5394dd4dd7664a7122fa8258518