[INFO] cloning repository https://github.com/hobarak/rustdatastructures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hobarak/rustdatastructures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustdatastructures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustdatastructures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c2d49596d650b84b5478d3471d82ba0010ab4de
[INFO] testing hobarak/rustdatastructures against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobarak%2Frustdatastructures" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobarak/rustdatastructures on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hobarak/rustdatastructures
[INFO] finished tweaking git repo https://github.com/hobarak/rustdatastructures
[INFO] tweaked toml for git repo https://github.com/hobarak/rustdatastructures written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hobarak/rustdatastructures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded threadpool v1.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0af59472bb753280ba6fc3f7c12840a5704b58e5640f56811007f5dcf82bf79
[INFO] running `Command { std: "docker" "start" "-a" "e0af59472bb753280ba6fc3f7c12840a5704b58e5640f56811007f5dcf82bf79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0af59472bb753280ba6fc3f7c12840a5704b58e5640f56811007f5dcf82bf79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0af59472bb753280ba6fc3f7c12840a5704b58e5640f56811007f5dcf82bf79", kill_on_drop: false }`
[INFO] [stdout] e0af59472bb753280ba6fc3f7c12840a5704b58e5640f56811007f5dcf82bf79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18cf218ea5373cbf8db526f4f1d332057e5984e798e5fa2ab58c3abbb93f9573
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[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling threadpool v1.8.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling rustdatastructures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `sync::Arc`
[INFO] [stdout]  --> src/artofmultiprocessor/ch2.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 4 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch2.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude::*`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cell::{Cell, RefCell, UnsafeCell},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Cell`, `UnsafeCell`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 |     sync::{Arc, Mutex},
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `realloc`
[INFO] [stdout]  --> src/pointers/simplebox.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::{alloc, dealloc, realloc, Layout};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Display`
[INFO] [stdout]  --> src/pointers/simplebox.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::Display,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `alloc`, `fmt::Display`, `rc::Rc`
[INFO] [stdout]  --> src/pointers/simplerc.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     alloc::{alloc, dealloc, Layout},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 3 |     cell::Cell,
[INFO] [stdout] 4 |     fmt::Display,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]  --> src/pointers/simplerefcell.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, RefCell, UnsafeCell},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/datastructures/conslist.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref, rc::Rc};
[INFO] [stdout]   |                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt::Display`, `iter::FromIterator`, `ops::Deref`
[INFO] [stdout]  --> src/datastructures/stack.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch2::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::artofmultiprocessor::ch2::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch7::*`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::artofmultiprocessor::ch7::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch8::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::artofmultiprocessor::ch8::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch9::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::artofmultiprocessor::ch9::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stdout]  --> src/pointers/simplebox.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     intrinsics::drop_in_place,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stdout]   --> src/pointers/simplebox.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             drop_in_place(self.0.as_ptr());
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |             if self.1.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:96:22
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn new(a: T, size: usize) -> ALock<T> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/artofmultiprocessor/ch9.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let mut rest = list.head.take();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/artofmultiprocessor/ch9.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut vec = vec![];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Cell<usize>; 100]` does not permit being left uninitialized
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:97:52
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut arr: [Cell<usize>; 100] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                    |
[INFO] [stdout]    |                                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mynode` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:160:18
[INFO] [stdout]     |
[INFO] [stdout] 160 |       pub static mynode: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |                  ^^^^^^ help: convert the identifier to upper case: `MYNODE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mypred` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 |       pub static mypred: Cell<&'static AtomicBool> = Cell::new(&falsenode);
[INFO] [stdout]     |                  ^^^^^^ help: convert the identifier to upper case: `MYPRED`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `falsenode` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub static falsenode: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to upper case: `FALSENODE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `sayHello` should have a snake case name
[INFO] [stdout]   --> src/pointers/simplerc.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn sayHello(&self);
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to snake case: `say_hello`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.52s
[INFO] running `Command { std: "docker" "inspect" "18cf218ea5373cbf8db526f4f1d332057e5984e798e5fa2ab58c3abbb93f9573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18cf218ea5373cbf8db526f4f1d332057e5984e798e5fa2ab58c3abbb93f9573", kill_on_drop: false }`
[INFO] [stdout] 18cf218ea5373cbf8db526f4f1d332057e5984e798e5fa2ab58c3abbb93f9573
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d6f1f528880e683339ab67286350e4fb1f4824c03dfaf7b78045ef43ca3811
[INFO] running `Command { std: "docker" "start" "-a" "b9d6f1f528880e683339ab67286350e4fb1f4824c03dfaf7b78045ef43ca3811", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustdatastructures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch10.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cell`
[INFO] [stdout]  --> src/artofmultiprocessor/ch2.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::prelude::*`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefCell`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     cell::{Cell, RefCell, UnsafeCell},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch7.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 4 |     sync::Arc,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch8.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::JoinHandle`
[INFO] [stdout]  --> src/artofmultiprocessor/ch9.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/concurrent/mod.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `realloc`
[INFO] [stdout]  --> src/pointers/simplebox.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::{alloc, dealloc, realloc, Layout};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc`
[INFO] [stdout]  --> src/pointers/simplerc.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     alloc::{alloc, dealloc, Layout},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/datastructures/conslist.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref, rc::Rc};
[INFO] [stdout]   |                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt::Display`, `iter::FromIterator`, `ops::Deref`
[INFO] [stdout]  --> src/datastructures/stack.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch2::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::artofmultiprocessor::ch2::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch7::*`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::artofmultiprocessor::ch7::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch8::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::artofmultiprocessor::ch8::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::artofmultiprocessor::ch9::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::artofmultiprocessor::ch9::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stdout]  --> src/pointers/simplebox.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     intrinsics::drop_in_place,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stdout]   --> src/pointers/simplebox.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             drop_in_place(self.0.as_ptr());
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |             if self.1.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:96:22
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn new(a: T, size: usize) -> ALock<T> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/pointers/simplebox.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let c: Box<dyn Display> = k;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/pointers/simplebox.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let c = testhelper(b);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rc2`
[INFO] [stdout]   --> src/pointers/simplerc.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let rc2 = rc.clone();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rc2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]   --> src/pointers/simplerc.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let asd = &*rc;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rc4`
[INFO] [stdout]   --> src/pointers/simplerc.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let rc4: Rc<dyn Display> = rc3;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rc4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/pointers/simplerc.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let k = rc.clone();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/pointers/simplerc.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let a = rc.clone();
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/pointers/simplerc.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let k = SimpleRc::new(A(11));
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/datastructures/conslist.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     if let Some((item, r)) = s1.uncons() {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/artofmultiprocessor/ch9.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let mut rest = list.head.take();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/artofmultiprocessor/ch9.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut vec = vec![];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testPeterson` should have a snake case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch2.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn testPeterson() {
[INFO] [stdout]     |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `test_peterson`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[Cell<usize>; 100]` does not permit being left uninitialized
[INFO] [stdout]   --> src/artofmultiprocessor/ch7.rs:97:52
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut arr: [Cell<usize>; 100] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                    |
[INFO] [stdout]    |                                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mynode` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:160:18
[INFO] [stdout]     |
[INFO] [stdout] 160 |       pub static mynode: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |                  ^^^^^^ help: convert the identifier to upper case: `MYNODE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `mypred` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 |       pub static mypred: Cell<&'static AtomicBool> = Cell::new(&falsenode);
[INFO] [stdout]     |                  ^^^^^^ help: convert the identifier to upper case: `MYPRED`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `falsenode` should have an upper case name
[INFO] [stdout]    --> src/artofmultiprocessor/ch7.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub static falsenode: AtomicBool = AtomicBool::new(false);
[INFO] [stdout]     |            ^^^^^^^^^ help: convert the identifier to upper case: `FALSENODE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `sayHello` should have a snake case name
[INFO] [stdout]   --> src/pointers/simplerc.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn sayHello(&self);
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to snake case: `say_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "b9d6f1f528880e683339ab67286350e4fb1f4824c03dfaf7b78045ef43ca3811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d6f1f528880e683339ab67286350e4fb1f4824c03dfaf7b78045ef43ca3811", kill_on_drop: false }`
[INFO] [stdout] b9d6f1f528880e683339ab67286350e4fb1f4824c03dfaf7b78045ef43ca3811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d722560a2f1afdee12f557919e0911245d544ea7b24a017d2516b5dc568240c
[INFO] running `Command { std: "docker" "start" "-a" "2d722560a2f1afdee12f557919e0911245d544ea7b24a017d2516b5dc568240c", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stderr]  --> src/artofmultiprocessor/ch10.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stderr]  --> src/artofmultiprocessor/ch10.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stderr]   |            ^^^^  ^^^^^^^^^^
[INFO] [stderr] 4 |     sync::Arc,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread::JoinHandle`
[INFO] [stderr]  --> src/artofmultiprocessor/ch10.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use thread::JoinHandle;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cell`
[INFO] [stderr]  --> src/artofmultiprocessor/ch2.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `chrono::prelude::*`
[INFO] [stderr]  --> src/artofmultiprocessor/ch7.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use chrono::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RefCell`
[INFO] [stderr]  --> src/artofmultiprocessor/ch7.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 |     cell::{Cell, RefCell, UnsafeCell},
[INFO] [stderr]   |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread::JoinHandle`
[INFO] [stderr]  --> src/artofmultiprocessor/ch7.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use thread::JoinHandle;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stderr]  --> src/artofmultiprocessor/ch8.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell`, `UnsafeCell`, `sync::Arc`
[INFO] [stderr]  --> src/artofmultiprocessor/ch8.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stderr]   |            ^^^^  ^^^^^^^^^^
[INFO] [stderr] 4 |     sync::Arc,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread::JoinHandle`
[INFO] [stderr]  --> src/artofmultiprocessor/ch8.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use thread::JoinHandle;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `AtomicUsize`, `Ordering`
[INFO] [stderr]  --> src/artofmultiprocessor/ch9.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell`, `UnsafeCell`
[INFO] [stderr]  --> src/artofmultiprocessor/ch9.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     cell::{Cell, UnsafeCell},
[INFO] [stderr]   |            ^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `thread::JoinHandle`
[INFO] [stderr]  --> src/artofmultiprocessor/ch9.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use thread::JoinHandle;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/concurrent/mod.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `realloc`
[INFO] [stderr]  --> src/pointers/simplebox.rs:1:34
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::alloc::{alloc, dealloc, realloc, Layout};
[INFO] [stderr]   |                                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `alloc`
[INFO] [stderr]  --> src/pointers/simplerc.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 |     alloc::{alloc, dealloc, Layout},
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ops::Deref`
[INFO] [stderr]  --> src/datastructures/conslist.rs:1:45
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref, rc::Rc};
[INFO] [stderr]   |                                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fmt::Display`, `iter::FromIterator`, `ops::Deref`
[INFO] [stderr]  --> src/datastructures/stack.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fmt::Display, iter::FromIterator, ops::Deref};
[INFO] [stderr]   |           ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::artofmultiprocessor::ch2::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::artofmultiprocessor::ch2::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::artofmultiprocessor::ch7::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::artofmultiprocessor::ch7::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::artofmultiprocessor::ch8::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::artofmultiprocessor::ch8::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::artofmultiprocessor::ch9::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::artofmultiprocessor::ch9::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stderr]  --> src/pointers/simplebox.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 |     intrinsics::drop_in_place,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::intrinsics::drop_in_place`: no longer an intrinsic - use `ptr::drop_in_place` directly
[INFO] [stderr]   --> src/pointers/simplebox.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             drop_in_place(self.0.as_ptr());
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/artofmultiprocessor/ch7.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 |             if self.1.compare_and_swap(false, true, Ordering::SeqCst) {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/artofmultiprocessor/ch7.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn new(a: T, size: usize) -> ALock<T> {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/pointers/simplebox.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let c: Box<dyn Display> = k;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/pointers/simplebox.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let c = testhelper(b);
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc2`
[INFO] [stderr]   --> src/pointers/simplerc.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let rc2 = rc.clone();
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rc2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `asd`
[INFO] [stderr]   --> src/pointers/simplerc.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let asd = &*rc;
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc4`
[INFO] [stderr]   --> src/pointers/simplerc.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let rc4: Rc<dyn Display> = rc3;
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rc4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/pointers/simplerc.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let k = rc.clone();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/pointers/simplerc.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |     let a = rc.clone();
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/pointers/simplerc.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     let k = SimpleRc::new(A(11));
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]   --> src/datastructures/conslist.rs:70:18
[INFO] [stderr]    |
[INFO] [stderr] 70 |     if let Some((item, r)) = s1.uncons() {
[INFO] [stderr]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/artofmultiprocessor/ch9.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let mut rest = list.head.take();
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/artofmultiprocessor/ch9.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let mut vec = vec![];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `testPeterson` should have a snake case name
[INFO] [stderr]    --> src/artofmultiprocessor/ch2.rs:155:4
[INFO] [stderr]     |
[INFO] [stderr] 155 | fn testPeterson() {
[INFO] [stderr]     |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `test_peterson`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[Cell<usize>; 100]` does not permit being left uninitialized
[INFO] [stderr]   --> src/artofmultiprocessor/ch7.rs:97:52
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let mut arr: [Cell<usize>; 100] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                                    |
[INFO] [stderr]    |                                                    this code causes undefined behavior when executed
[INFO] [stderr]    |                                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: integers must be initialized
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `mynode` should have an upper case name
[INFO] [stderr]    --> src/artofmultiprocessor/ch7.rs:160:18
[INFO] [stderr]     |
[INFO] [stderr] 160 |       pub static mynode: AtomicBool = AtomicBool::new(false);
[INFO] [stderr]     |                  ^^^^^^ help: convert the identifier to upper case: `MYNODE`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `mypred` should have an upper case name
[INFO] [stderr]    --> src/artofmultiprocessor/ch7.rs:161:18
[INFO] [stderr]     |
[INFO] [stderr] 161 |       pub static mypred: Cell<&'static AtomicBool> = Cell::new(&falsenode);
[INFO] [stderr]     |                  ^^^^^^ help: convert the identifier to upper case: `MYPRED`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `falsenode` should have an upper case name
[INFO] [stderr]    --> src/artofmultiprocessor/ch7.rs:164:12
[INFO] [stderr]     |
[INFO] [stderr] 164 | pub static falsenode: AtomicBool = AtomicBool::new(false);
[INFO] [stderr]     |            ^^^^^^^^^ help: convert the identifier to upper case: `FALSENODE`
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `sayHello` should have a snake case name
[INFO] [stderr]   --> src/pointers/simplerc.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn sayHello(&self);
[INFO] [stderr]    |        ^^^^^^^^ help: convert the identifier to snake case: `say_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: `rustdatastructures` (bin "rustdatastructures" test) generated 44 warnings (run `cargo fix --bin "rustdatastructures" --tests` to apply 34 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustdatastructures-502db7001bac51e8)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test datastructures::vector::vecexample ... ok
[INFO] [stdout] test datastructures::stack::create ... ok
[INFO] [stdout] test pointers::simplebox::mytest ... ok
[INFO] [stdout] test datastructures::deque::testdeque ... ok
[INFO] [stdout] test artofmultiprocessor::ch2::test ... ok
[INFO] [stdout] test datastructures::conslist::create ... ok
[INFO] [stdout] test pointers::simplerefcell::test ... ok
[INFO] [stdout] test pointers::simplerc::test ... ok
[INFO] [stdout] test pointers::simplerc::mytest ... ok
[INFO] [stdout] test pointers::simplerefcell::simpletest ... ok
[INFO] [stdout] test concurrent::mytest ... ok
[INFO] [stdout] test artofmultiprocessor::ch9::coarse_test ... ok
[INFO] [stdout] test artofmultiprocessor::ch2::testPeterson ... FAILED
[INFO] [stdout] test artofmultiprocessor::ch7::tt ... ok
[INFO] [stdout] test artofmultiprocessor::ch2::test_bakery ... FAILED
[INFO] [stdout] test artofmultiprocessor::ch2::test_filter_lock ... FAILED
[INFO] [stdout] test artofmultiprocessor::ch7::at ... ok
[INFO] [stdout] test artofmultiprocessor::ch2::testlock2 has been running for over 60 seconds
[INFO] [stdout] test artofmultiprocessor::ch7::clh has been running for over 60 seconds
[INFO] [stdout] test artofmultiprocessor::ch9::fine_test has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "2d722560a2f1afdee12f557919e0911245d544ea7b24a017d2516b5dc568240c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d722560a2f1afdee12f557919e0911245d544ea7b24a017d2516b5dc568240c", kill_on_drop: false }`
[INFO] [stdout] 2d722560a2f1afdee12f557919e0911245d544ea7b24a017d2516b5dc568240c
