[INFO] cloning repository https://github.com/sibkit/erc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sibkit/erc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibkit%2Ferc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibkit%2Ferc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8cd78c8984c2c53fd904db88d9e13ef1d3f7aeb
[INFO] testing sibkit/erc against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsibkit%2Ferc" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sibkit/erc
[INFO] finished tweaking git repo https://github.com/sibkit/erc
[INFO] tweaked toml for git repo https://github.com/sibkit/erc written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sibkit/erc on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sibkit/erc 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48229e5f3718db1aad3f95aff6f99abe2383af8d0502e48100087d60f008cf78
[INFO] running `Command { std: "docker" "start" "-a" "48229e5f3718db1aad3f95aff6f99abe2383af8d0502e48100087d60f008cf78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48229e5f3718db1aad3f95aff6f99abe2383af8d0502e48100087d60f008cf78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48229e5f3718db1aad3f95aff6f99abe2383af8d0502e48100087d60f008cf78", kill_on_drop: false }`
[INFO] [stdout] 48229e5f3718db1aad3f95aff6f99abe2383af8d0502e48100087d60f008cf78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 100ae06a0db7767b8574abfdc621ba2200df197dc54ee8b49eaedafc5fa34b38
[INFO] running `Command { std: "docker" "start" "-a" "100ae06a0db7767b8574abfdc621ba2200df197dc54ee8b49eaedafc5fa34b38", kill_on_drop: false }`
[INFO] [stderr]    Compiling erc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc::Allocator`
[INFO] [stdout]  --> src/erc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::Allocator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `UnsafeCell`
[INFO] [stdout]  --> src/erc.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::NonNull`
[INFO] [stdout]  --> src/erc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ptr::NonNull;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/erc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnsafeCell`
[INFO] [stdout]  --> src/erc_box.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/ewc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/ewc.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::erc::Erc`
[INFO] [stdout]  --> src/ref_holders.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::erc::Erc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/erc.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut state = &erc_box.borrow_state();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ref_holders.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Erc` is never constructed
[INFO] [stdout]   --> src/erc.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Erc<T:?Sized> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/erc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl <T> Erc<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 21 |     #[inline(always)]
[INFO] [stdout] 22 |     pub fn new(x: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `try_borrow`, `try_borrow_mut`, `get_state`, and `from_erc_box_ptr` are never used
[INFO] [stdout]   --> src/erc.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl <T: ?Sized> Erc<T> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn try_borrow(&self) -> Result<RefHolder<'_, T>, BorrowError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn try_borrow_mut(&self) -> Result<RefMutHolder<'_,T>, BorrowError>{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn get_state(&self) -> &BorrowState{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn from_erc_box_ptr(ptr:  *mut ErcBox<T>) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErcBox` is never constructed
[INFO] [stdout]  --> src/erc_box.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct ErcBox<T:?Sized> {
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/erc_box.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <T> ErcBox<T> {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 13 |     pub fn new(value: T) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_raw_ptr` and `borrow_state` are never used
[INFO] [stdout]   --> src/erc_box.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl <T:?Sized> ErcBox<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 24 |     pub fn get_raw_ptr(&self) -> *mut T {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn borrow_state(&self) -> &BorrowState {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ewc` is never constructed
[INFO] [stdout]  --> src/ewc.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Ewc<T:?Sized> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ewc.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl <T> Ewc<T>{
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     pub const fn new() -> Ewc<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `upgrade` is never used
[INFO] [stdout]   --> src/ewc.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <T:?Sized> Ewc<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 18 |     pub fn upgrade(&self) -> Option<Erc<T>>
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RefHolder` is never constructed
[INFO] [stdout]  --> src/ref_holders.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RefHolder<'a, T:?Sized> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_erc_box` is never used
[INFO] [stdout]   --> src/ref_holders.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl <'a, T:?Sized> RefHolder<'a,T> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 12 |     pub(crate) fn from_erc_box(erc_box: &'a ErcBox<T>)->Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RefMutHolder` is never constructed
[INFO] [stdout]   --> src/ref_holders.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct RefMutHolder<'a,T:?Sized> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_erc_box_ptr` is never used
[INFO] [stdout]   --> src/ref_holders.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl <'a, T:?Sized> RefMutHolder<'a,T> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] 46 |     pub(crate) fn from_erc_box_ptr(erc_box_ptr: *mut ErcBox<T>)->Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowState` is never constructed
[INFO] [stdout]  --> src/borrow_state.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BorrowState {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/borrow_state.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl BorrowState {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 11 |     #[inline(always)]
[INFO] [stdout] 12 |     pub fn unused() -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn is_writing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn is_reading(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn is_unused(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn can_read(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn inc_reading(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn dec_reading(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn inc_writing(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn dec_writing(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowError` is never constructed
[INFO] [stdout]  --> src/borrow_error.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BorrowError;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "100ae06a0db7767b8574abfdc621ba2200df197dc54ee8b49eaedafc5fa34b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100ae06a0db7767b8574abfdc621ba2200df197dc54ee8b49eaedafc5fa34b38", kill_on_drop: false }`
[INFO] [stdout] 100ae06a0db7767b8574abfdc621ba2200df197dc54ee8b49eaedafc5fa34b38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3292745485d8ba6fa23d7aead43140ac6a2be661251f39aad5a8f213cfbf19c
[INFO] running `Command { std: "docker" "start" "-a" "e3292745485d8ba6fa23d7aead43140ac6a2be661251f39aad5a8f213cfbf19c", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::alloc::Allocator`
[INFO] [stdout]  --> src/erc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::Allocator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `UnsafeCell`
[INFO] [stdout]  --> src/erc.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::NonNull`
[INFO] [stdout]  --> src/erc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ptr::NonNull;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/erc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnsafeCell`
[INFO] [stdout]  --> src/erc_box.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/ewc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/ewc.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::erc::Erc`
[INFO] [stdout]  --> src/ref_holders.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::erc::Erc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/erc.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut state = &erc_box.borrow_state();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ref_holders.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Erc` is never constructed
[INFO] [stdout]   --> src/erc.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Erc<T:?Sized> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/erc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl <T> Erc<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 21 |     #[inline(always)]
[INFO] [stdout] 22 |     pub fn new(x: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `try_borrow`, `try_borrow_mut`, `get_state`, and `from_erc_box_ptr` are never used
[INFO] [stdout]   --> src/erc.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl <T: ?Sized> Erc<T> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn try_borrow(&self) -> Result<RefHolder<'_, T>, BorrowError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn try_borrow_mut(&self) -> Result<RefMutHolder<'_,T>, BorrowError>{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn get_state(&self) -> &BorrowState{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn from_erc_box_ptr(ptr:  *mut ErcBox<T>) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErcBox` is never constructed
[INFO] [stdout]  --> src/erc_box.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct ErcBox<T:?Sized> {
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/erc_box.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <T> ErcBox<T> {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 13 |     pub fn new(value: T) -> Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_raw_ptr` and `borrow_state` are never used
[INFO] [stdout]   --> src/erc_box.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl <T:?Sized> ErcBox<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 24 |     pub fn get_raw_ptr(&self) -> *mut T {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn borrow_state(&self) -> &BorrowState {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ewc` is never constructed
[INFO] [stdout]  --> src/ewc.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Ewc<T:?Sized> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ewc.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl <T> Ewc<T>{
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     pub const fn new() -> Ewc<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `upgrade` is never used
[INFO] [stdout]   --> src/ewc.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <T:?Sized> Ewc<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 18 |     pub fn upgrade(&self) -> Option<Erc<T>>
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RefHolder` is never constructed
[INFO] [stdout]  --> src/ref_holders.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RefHolder<'a, T:?Sized> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_erc_box` is never used
[INFO] [stdout]   --> src/ref_holders.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl <'a, T:?Sized> RefHolder<'a,T> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 12 |     pub(crate) fn from_erc_box(erc_box: &'a ErcBox<T>)->Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RefMutHolder` is never constructed
[INFO] [stdout]   --> src/ref_holders.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct RefMutHolder<'a,T:?Sized> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_erc_box_ptr` is never used
[INFO] [stdout]   --> src/ref_holders.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl <'a, T:?Sized> RefMutHolder<'a,T> {
[INFO] [stdout]    | -------------------------------------- associated function in this implementation
[INFO] [stdout] 46 |     pub(crate) fn from_erc_box_ptr(erc_box_ptr: *mut ErcBox<T>)->Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowState` is never constructed
[INFO] [stdout]  --> src/borrow_state.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BorrowState {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/borrow_state.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl BorrowState {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 11 |     #[inline(always)]
[INFO] [stdout] 12 |     pub fn unused() -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn is_writing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn is_reading(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn is_unused(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn can_read(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn inc_reading(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn dec_reading(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn inc_writing(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn dec_writing(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BorrowError` is never constructed
[INFO] [stdout]  --> src/borrow_error.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct BorrowError;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling erc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc::Allocator`
[INFO] [stdout]  --> src/erc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::Allocator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `UnsafeCell`
[INFO] [stdout]  --> src/erc.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::NonNull`
[INFO] [stdout]  --> src/erc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ptr::NonNull;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/erc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnsafeCell`
[INFO] [stdout]  --> src/erc_box.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{Cell, UnsafeCell};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/ewc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rc` and `Weak`
[INFO] [stdout]  --> src/ewc.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::{Rc, Weak};
[INFO] [stdout]   |               ^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::erc::Erc`
[INFO] [stdout]  --> src/ref_holders.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::erc::Erc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use std::cell::RefCell;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::borrow_error::BorrowError`
[INFO] [stdout]   --> src/lib.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use crate::borrow_error::BorrowError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/erc.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut state = &erc_box.borrow_state();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ref_holders.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/lib.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let g = Gadget::new("Ola".to_string());
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rc`
[INFO] [stdout]   --> src/lib.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let rc = Rc::new(String::from("Astra")) as Rc<dyn Any>;
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_rc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `erc`
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let erc = Erc::new(String::from("Astra")) as Erc<dyn Any>;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_erc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_erc_box_ptr` is never used
[INFO] [stdout]   --> src/erc.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl <T: ?Sized> Erc<T> {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn from_erc_box_ptr(ptr:  *mut ErcBox<T>) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `strong` and `weak` are never read
[INFO] [stdout]  --> src/erc_box.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct ErcBox<T:?Sized> {
[INFO] [stdout]   |                   ------ fields in this struct
[INFO] [stdout] 6 |     pub(crate) strong: Cell<usize>,
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 7 |     pub(crate) weak: Cell<usize>,
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_raw_ptr` is never used
[INFO] [stdout]   --> src/erc_box.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl <T:?Sized> ErcBox<T> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] 24 |     pub fn get_raw_ptr(&self) -> *mut T {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ewc` is never constructed
[INFO] [stdout]  --> src/ewc.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Ewc<T:?Sized> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ewc.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl <T> Ewc<T>{
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     pub const fn new() -> Ewc<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `upgrade` is never used
[INFO] [stdout]   --> src/ewc.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <T:?Sized> Ewc<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 18 |     pub fn upgrade(&self) -> Option<Erc<T>>
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_writing` and `is_reading` are never used
[INFO] [stdout]   --> src/borrow_state.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl BorrowState {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn is_writing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn is_reading(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `me2` are never read
[INFO] [stdout]   --> src/lib.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         struct Gadget {
[INFO] [stdout]    |                ------ fields in this struct
[INFO] [stdout] 53 |             name: String,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 54 |             me2: Weak<Gadget>,
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `me` is never used
[INFO] [stdout]   --> src/lib.rs:70:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         impl Gadget {
[INFO] [stdout]    |         ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 70 |             fn me(&self) -> Rc<Self> {
[INFO] [stdout]    |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "e3292745485d8ba6fa23d7aead43140ac6a2be661251f39aad5a8f213cfbf19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3292745485d8ba6fa23d7aead43140ac6a2be661251f39aad5a8f213cfbf19c", kill_on_drop: false }`
[INFO] [stdout] e3292745485d8ba6fa23d7aead43140ac6a2be661251f39aad5a8f213cfbf19c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ecb5f7f9d5fcde0034b54879050c3eb92ee21c0dd999fa2c58d59ca55dc62435
[INFO] running `Command { std: "docker" "start" "-a" "ecb5f7f9d5fcde0034b54879050c3eb92ee21c0dd999fa2c58d59ca55dc62435", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::alloc::Allocator`
[INFO] [stderr]  --> src/erc.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::alloc::Allocator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell` and `UnsafeCell`
[INFO] [stderr]  --> src/erc.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cell::{Cell, UnsafeCell};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::NonNull`
[INFO] [stderr]  --> src/erc.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ptr::NonNull;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/erc.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UnsafeCell`
[INFO] [stderr]  --> src/erc_box.rs:1:23
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cell::{Cell, UnsafeCell};
[INFO] [stderr]   |                       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/ewc.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rc` and `Weak`
[INFO] [stderr]  --> src/ewc.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::rc::{Rc, Weak};
[INFO] [stderr]   |               ^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::erc::Erc`
[INFO] [stderr]  --> src/ref_holders.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::erc::Erc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/erc.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut state = &erc_box.borrow_state();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ref_holders.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Erc` is never constructed
[INFO] [stderr]   --> src/erc.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Erc<T:?Sized> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/erc.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl <T> Erc<T> {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 21 |     #[inline(always)]
[INFO] [stderr] 22 |     pub fn new(x: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `try_borrow`, `try_borrow_mut`, `get_state`, and `from_erc_box_ptr` are never used
[INFO] [stderr]   --> src/erc.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl <T: ?Sized> Erc<T> {
[INFO] [stderr]    | ----------------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn try_borrow(&self) -> Result<RefHolder<'_, T>, BorrowError> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     pub fn try_borrow_mut(&self) -> Result<RefMutHolder<'_,T>, BorrowError>{
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 |     pub fn get_state(&self) -> &BorrowState{
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     pub(crate) fn from_erc_box_ptr(ptr:  *mut ErcBox<T>) -> Self {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ErcBox` is never constructed
[INFO] [stderr]  --> src/erc_box.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub(crate) struct ErcBox<T:?Sized> {
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/erc_box.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl <T> ErcBox<T> {
[INFO] [stderr]    | ------------------ associated function in this implementation
[INFO] [stderr] 13 |     pub fn new(value: T) -> Self{
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `get_raw_ptr` and `borrow_state` are never used
[INFO] [stderr]   --> src/erc_box.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl <T:?Sized> ErcBox<T> {
[INFO] [stderr]    | ------------------------- methods in this implementation
[INFO] [stderr] 24 |     pub fn get_raw_ptr(&self) -> *mut T {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn borrow_state(&self) -> &BorrowState {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Ewc` is never constructed
[INFO] [stderr]  --> src/ewc.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Ewc<T:?Sized> {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ewc.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl <T> Ewc<T>{
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 11 |     #[inline]
[INFO] [stderr] 12 |     pub const fn new() -> Ewc<T> {
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `upgrade` is never used
[INFO] [stderr]   --> src/ewc.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <T:?Sized> Ewc<T> {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] 18 |     pub fn upgrade(&self) -> Option<Erc<T>>
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RefHolder` is never constructed
[INFO] [stderr]  --> src/ref_holders.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct RefHolder<'a, T:?Sized> {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_erc_box` is never used
[INFO] [stderr]   --> src/ref_holders.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl <'a, T:?Sized> RefHolder<'a,T> {
[INFO] [stderr]    | ----------------------------------- associated function in this implementation
[INFO] [stderr] 12 |     pub(crate) fn from_erc_box(erc_box: &'a ErcBox<T>)->Self {
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RefMutHolder` is never constructed
[INFO] [stderr]   --> src/ref_holders.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct RefMutHolder<'a,T:?Sized> {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_erc_box_ptr` is never used
[INFO] [stderr]   --> src/ref_holders.rs:46:19
[INFO] [stderr]    |
[INFO] [stderr] 45 | impl <'a, T:?Sized> RefMutHolder<'a,T> {
[INFO] [stderr]    | -------------------------------------- associated function in this implementation
[INFO] [stderr] 46 |     pub(crate) fn from_erc_box_ptr(erc_box_ptr: *mut ErcBox<T>)->Self {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BorrowState` is never constructed
[INFO] [stderr]  --> src/borrow_state.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct BorrowState {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/borrow_state.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl BorrowState {
[INFO] [stderr]    | ---------------- associated items in this implementation
[INFO] [stderr] 11 |     #[inline(always)]
[INFO] [stderr] 12 |     pub fn unused() -> Self {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn is_writing(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn is_reading(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn is_unused(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 30 |     pub fn can_read(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn inc_reading(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     pub fn dec_reading(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     pub fn inc_writing(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 |     pub fn dec_writing(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BorrowError` is never constructed
[INFO] [stderr]  --> src/borrow_error.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct BorrowError;
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `erc` (lib) generated 26 warnings (run `cargo fix --lib -p erc` to apply 10 suggestions)
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/lib.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     use std::cell::RefCell;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::borrow_error::BorrowError`
[INFO] [stderr]   --> src/lib.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     use crate::borrow_error::BorrowError;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lib.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/lib.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let g = Gadget::new("Ola".to_string());
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rc`
[INFO] [stderr]   --> src/lib.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let rc = Rc::new(String::from("Astra")) as Rc<dyn Any>;
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_rc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `erc`
[INFO] [stderr]   --> src/lib.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let erc = Erc::new(String::from("Astra")) as Erc<dyn Any>;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_erc`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_erc_box_ptr` is never used
[INFO] [stderr]   --> src/erc.rs:61:19
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl <T: ?Sized> Erc<T> {
[INFO] [stderr]    | ----------------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 61 |     pub(crate) fn from_erc_box_ptr(ptr:  *mut ErcBox<T>) -> Self {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `strong` and `weak` are never read
[INFO] [stderr]  --> src/erc_box.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub(crate) struct ErcBox<T:?Sized> {
[INFO] [stderr]   |                   ------ fields in this struct
[INFO] [stderr] 6 |     pub(crate) strong: Cell<usize>,
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr] 7 |     pub(crate) weak: Cell<usize>,
[INFO] [stderr]   |                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_raw_ptr` is never used
[INFO] [stderr]   --> src/erc_box.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl <T:?Sized> ErcBox<T> {
[INFO] [stderr]    | ------------------------- method in this implementation
[INFO] [stderr] 24 |     pub fn get_raw_ptr(&self) -> *mut T {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `is_writing` and `is_reading` are never used
[INFO] [stderr]   --> src/borrow_state.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl BorrowState {
[INFO] [stderr]    | ---------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn is_writing(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn is_reading(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `me2` are never read
[INFO] [stderr]   --> src/lib.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |         struct Gadget {
[INFO] [stderr]    |                ------ fields in this struct
[INFO] [stderr] 53 |             name: String,
[INFO] [stderr]    |             ^^^^
[INFO] [stderr] 54 |             me2: Weak<Gadget>,
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `me` is never used
[INFO] [stderr]   --> src/lib.rs:70:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |         impl Gadget {
[INFO] [stderr]    |         ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 70 |             fn me(&self) -> Rc<Self> {
[INFO] [stderr]    |                ^^
[INFO] [stderr] 
[INFO] [stderr] warning: `erc` (lib test) generated 25 warnings (13 duplicates) (run `cargo fix --lib -p erc --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/erc-5f7a04aff914d93e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::erc_borrow_test ... ok
[INFO] [stdout] test tests::new_cyclic_test ... ok
[INFO] [stdout] test tests::erc_dyn_test ... ok
[INFO] [stdout] test tests::addr_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests erc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/ewc.rs - ewc::Ewc<T>::clone (line 38) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/ewc.rs - ewc::Ewc<T>::clone (line 38) stdout ----
[INFO] [stdout] error[E0432]: unresolved imports `erc::Erc`, `erc::Ewc`
[INFO] [stdout]   --> src/ewc.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | use erc::{Erc, Ewc};
[INFO] [stdout]    |           ^^^  ^^^ no `Ewc` in the root
[INFO] [stdout]    |           |
[INFO] [stdout]    |           no `Erc` in the root
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 40 - use erc::{Erc, Ewc};
[INFO] [stdout] 40 + use erc::{erc, Ewc};
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 40 - use erc::{Erc, Ewc};
[INFO] [stdout] 40 + use erc::{Erc, ewc};
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/ewc.rs - ewc::Ewc<T>::clone (line 38)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "ecb5f7f9d5fcde0034b54879050c3eb92ee21c0dd999fa2c58d59ca55dc62435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb5f7f9d5fcde0034b54879050c3eb92ee21c0dd999fa2c58d59ca55dc62435", kill_on_drop: false }`
[INFO] [stdout] ecb5f7f9d5fcde0034b54879050c3eb92ee21c0dd999fa2c58d59ca55dc62435
