[INFO] cloning repository https://github.com/PawsomeOS/ewesfullib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PawsomeOS/ewesfullib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPawsomeOS%2Fewesfullib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPawsomeOS%2Fewesfullib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f88116a7d54a82ba6be98305a348d3c82727d95b
[INFO] checking PawsomeOS/ewesfullib against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPawsomeOS%2Fewesfullib" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/PawsomeOS/ewesfullib
[INFO] finished tweaking git repo https://github.com/PawsomeOS/ewesfullib
[INFO] tweaked toml for git repo https://github.com/PawsomeOS/ewesfullib written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PawsomeOS/ewesfullib on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PawsomeOS/ewesfullib 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a16173ac1c9035d8010a4c65d956210915ef5002cbd69af078d7a216cae8cfc7
[INFO] running `Command { std: "docker" "start" "-a" "a16173ac1c9035d8010a4c65d956210915ef5002cbd69af078d7a216cae8cfc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a16173ac1c9035d8010a4c65d956210915ef5002cbd69af078d7a216cae8cfc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a16173ac1c9035d8010a4c65d956210915ef5002cbd69af078d7a216cae8cfc7", kill_on_drop: false }`
[INFO] [stdout] a16173ac1c9035d8010a4c65d956210915ef5002cbd69af078d7a216cae8cfc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d451519256df29ca91de24cc1efce2e73105de37e8906a08d55f763ad0553e1
[INFO] running `Command { std: "docker" "start" "-a" "1d451519256df29ca91de24cc1efce2e73105de37e8906a08d55f763ad0553e1", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking ewesfullib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             (*write_cursor > *read_cursor)
[INFO] [stdout]    |             ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -             (*write_cursor > *read_cursor)
[INFO] [stdout] 37 +             *write_cursor > *read_cursor 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::buffers::Buffer`
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{collections::buffers::Buffer, prelude::*};
[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 import: `MutexGuard`
[INFO] [stdout]  --> src/prelude.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use spin::{RwLock, Mutex, MutexGuard};
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             (*write_cursor > *read_cursor)
[INFO] [stdout]    |             ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -             (*write_cursor > *read_cursor)
[INFO] [stdout] 37 +             *write_cursor > *read_cursor 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::buffers::Buffer`
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{collections::buffers::Buffer, prelude::*};
[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 import: `MutexGuard`
[INFO] [stdout]  --> src/prelude.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use spin::{RwLock, Mutex, MutexGuard};
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut buffer = self.buffer.lock();
[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: `value`
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from(value: Box<[u8]>) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn from(value: Vec<u8>) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut buffer = self.buffer.lock();
[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: fields `branch_size` and `nodes` are never read
[INFO] [stdout]  --> src/collections/tree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Tree<T> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 4 |     branch_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 5 |     nodes: Vec<Entry<T>>
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Leaf` and `Branch` are never constructed
[INFO] [stdout]   --> src/collections/tree.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Entry<T> {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout]  9 |     Leaf(Box<T>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Branch(Vec<Box<Entry<T>>>)   
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `read_cursor` are never read
[INFO] [stdout]  --> src/collections/buffers/fixedbuffer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FixedBuffer<T> {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 5 |     buffer: Box<Arc<Mutex<[T]>>>,
[INFO] [stdout] 6 |     size: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     read_cursor: Mutex<usize>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `VarLenBuffer` is never constructed
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VarLenBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VarLenBuffer {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     buffer: Box<Arc<RwLock<Vec<u8>>>>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from(value: Box<[u8]>) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/collections/buffers/fixedbuffer.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn from(value: Vec<u8>) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ewesfullib` (lib) due to 1 previous error; 10 warnings emitted
[INFO] [stdout] warning: fields `branch_size` and `nodes` are never read
[INFO] [stdout]  --> src/collections/tree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Tree<T> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 4 |     branch_size: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 5 |     nodes: Vec<Entry<T>>
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variants `Leaf` and `Branch` are never constructed
[INFO] [stdout]   --> src/collections/tree.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Entry<T> {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout]  9 |     Leaf(Box<T>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Branch(Vec<Box<Entry<T>>>)   
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `size` and `read_cursor` are never read
[INFO] [stdout]  --> src/collections/buffers/fixedbuffer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FixedBuffer<T> {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 5 |     buffer: Box<Arc<Mutex<[T]>>>,
[INFO] [stdout] 6 |     size: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     read_cursor: Mutex<usize>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `VarLenBuffer` is never constructed
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VarLenBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]  --> src/collections/buffers/varlenbuffer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct VarLenBuffer {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     buffer: Box<Arc<RwLock<Vec<u8>>>>
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ewesfullib` (lib test) due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1d451519256df29ca91de24cc1efce2e73105de37e8906a08d55f763ad0553e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d451519256df29ca91de24cc1efce2e73105de37e8906a08d55f763ad0553e1", kill_on_drop: false }`
[INFO] [stdout] 1d451519256df29ca91de24cc1efce2e73105de37e8906a08d55f763ad0553e1
