[INFO] cloning repository https://github.com/cirerick/Rusty_Pipe_Maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cirerick/Rusty_Pipe_Maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcirerick%2FRusty_Pipe_Maze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcirerick%2FRusty_Pipe_Maze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dca5d198895e718226c66876c3b69d5321faa624
[INFO] testing cirerick/Rusty_Pipe_Maze against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcirerick%2FRusty_Pipe_Maze" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cirerick/Rusty_Pipe_Maze on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cirerick/Rusty_Pipe_Maze
[INFO] finished tweaking git repo https://github.com/cirerick/Rusty_Pipe_Maze
[INFO] tweaked toml for git repo https://github.com/cirerick/Rusty_Pipe_Maze written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cirerick/Rusty_Pipe_Maze 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eeea429c2dc2af528bda0d80b1965592cafda83be8401e606257e4afb5a5f90
[INFO] running `Command { std: "docker" "start" "-a" "2eeea429c2dc2af528bda0d80b1965592cafda83be8401e606257e4afb5a5f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eeea429c2dc2af528bda0d80b1965592cafda83be8401e606257e4afb5a5f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eeea429c2dc2af528bda0d80b1965592cafda83be8401e606257e4afb5a5f90", kill_on_drop: false }`
[INFO] [stdout] 2eeea429c2dc2af528bda0d80b1965592cafda83be8401e606257e4afb5a5f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80e788e07356108c99b94330d572974db33d594c58ca6982d9107d749fa3cc01
[INFO] running `Command { std: "docker" "start" "-a" "80e788e07356108c99b94330d572974db33d594c58ca6982d9107d749fa3cc01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling Rusty_Pipe_Maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc::alloc`
[INFO] [stdout]   --> src/pipes.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::alloc::alloc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::alloc::handle_alloc_error`
[INFO] [stdout]   --> src/pipes.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::alloc::handle_alloc_error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::DerefMut`
[INFO] [stdout]   --> src/pipes.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::DerefMut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]   --> src/pipes.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ptr;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `running`
[INFO] [stdout]   --> src/resu.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn cross(&mut self, running: &mut bool) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_running`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Node<T>` is more private than the item `User::pipe_pos`
[INFO] [stdout]   --> src/resu.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub pipe_pos: *mut Node<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ field `User::pipe_pos` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Node<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/pipes.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Node<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pipes.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 59 |     fn new(data: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "80e788e07356108c99b94330d572974db33d594c58ca6982d9107d749fa3cc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e788e07356108c99b94330d572974db33d594c58ca6982d9107d749fa3cc01", kill_on_drop: false }`
[INFO] [stdout] 80e788e07356108c99b94330d572974db33d594c58ca6982d9107d749fa3cc01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f808d924715cd0db6ca80c0bc330f7c9300e517ea5053ee1c599ef015d449453
[INFO] running `Command { std: "docker" "start" "-a" "f808d924715cd0db6ca80c0bc330f7c9300e517ea5053ee1c599ef015d449453", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rusty_Pipe_Maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc::alloc`
[INFO] [stdout]   --> src/pipes.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::alloc::alloc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::alloc::handle_alloc_error`
[INFO] [stdout]   --> src/pipes.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::alloc::handle_alloc_error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::DerefMut`
[INFO] [stdout]   --> src/pipes.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::DerefMut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]   --> src/pipes.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ptr;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::path;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `running`
[INFO] [stdout]   --> src/resu.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn cross(&mut self, running: &mut bool) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_running`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Node<T>` is more private than the item `User::pipe_pos`
[INFO] [stdout]   --> src/resu.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub pipe_pos: *mut Node<T>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ field `User::pipe_pos` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Node<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/pipes.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Node<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pipes.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 59 |     fn new(data: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "f808d924715cd0db6ca80c0bc330f7c9300e517ea5053ee1c599ef015d449453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f808d924715cd0db6ca80c0bc330f7c9300e517ea5053ee1c599ef015d449453", kill_on_drop: false }`
[INFO] [stdout] f808d924715cd0db6ca80c0bc330f7c9300e517ea5053ee1c599ef015d449453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b8213b3c26a8a2ad8d44ccd484362786e77a2206140f7f38eab888a085cc08b
[INFO] running `Command { std: "docker" "start" "-a" "9b8213b3c26a8a2ad8d44ccd484362786e77a2206140f7f38eab888a085cc08b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::alloc::alloc`
[INFO] [stderr]   --> src/pipes.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::alloc::alloc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::alloc::handle_alloc_error`
[INFO] [stderr]   --> src/pipes.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::alloc::handle_alloc_error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::DerefMut`
[INFO] [stderr]   --> src/pipes.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::ops::DerefMut;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]   --> src/pipes.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::ptr;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::path;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `running`
[INFO] [stderr]   --> src/resu.rs:39:29
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn cross(&mut self, running: &mut bool) {
[INFO] [stderr]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_running`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Node<T>` is more private than the item `User::pipe_pos`
[INFO] [stderr]   --> src/resu.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub pipe_pos: *mut Node<T>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ field `User::pipe_pos` is reachable at visibility `pub(crate)`
[INFO] [stderr]    |
[INFO] [stderr] note: but type `Node<T>` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/pipes.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct Node<T> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/pipes.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | impl<T> Node<T> {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 59 |     fn new(data: T) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `Rusty_Pipe_Maze` (bin "Rusty_Pipe_Maze" test) generated 8 warnings (run `cargo fix --bin "Rusty_Pipe_Maze" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Rusty_Pipe_Maze-6ca2e35fc8b8ee02)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9b8213b3c26a8a2ad8d44ccd484362786e77a2206140f7f38eab888a085cc08b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b8213b3c26a8a2ad8d44ccd484362786e77a2206140f7f38eab888a085cc08b", kill_on_drop: false }`
[INFO] [stdout] 9b8213b3c26a8a2ad8d44ccd484362786e77a2206140f7f38eab888a085cc08b