[INFO] cloning repository https://github.com/jamescarterbell/AtomicLinkedList
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamescarterbell/AtomicLinkedList" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamescarterbell%2FAtomicLinkedList", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamescarterbell%2FAtomicLinkedList'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb9f13406fb68d0019e78b275e0b3a9d7f89b105
[INFO] testing jamescarterbell/AtomicLinkedList against master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamescarterbell%2FAtomicLinkedList" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jamescarterbell/AtomicLinkedList
[INFO] finished tweaking git repo https://github.com/jamescarterbell/AtomicLinkedList
[INFO] tweaked toml for git repo https://github.com/jamescarterbell/AtomicLinkedList written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jamescarterbell/AtomicLinkedList on toolchain f9988fefd3add01f414f52b414308e7872622fee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jamescarterbell/AtomicLinkedList 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" "+f9988fefd3add01f414f52b414308e7872622fee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/jamescarterbell/AtomicMarkablePtr`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c64612fda410b37156c33d2c4bc9a52b08bb353cdf55eefd5e66cc9f356a3e5d
[INFO] running `Command { std: "docker" "start" "-a" "c64612fda410b37156c33d2c4bc9a52b08bb353cdf55eefd5e66cc9f356a3e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c64612fda410b37156c33d2c4bc9a52b08bb353cdf55eefd5e66cc9f356a3e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64612fda410b37156c33d2c4bc9a52b08bb353cdf55eefd5e66cc9f356a3e5d", kill_on_drop: false }`
[INFO] [stdout] c64612fda410b37156c33d2c4bc9a52b08bb353cdf55eefd5e66cc9f356a3e5d
[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=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" "+f9988fefd3add01f414f52b414308e7872622fee" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14699431f6d0d209d0b63e6164e7acadce528154cd34c3458af4bf5aa7b878b
[INFO] running `Command { std: "docker" "start" "-a" "d14699431f6d0d209d0b63e6164e7acadce528154cd34c3458af4bf5aa7b878b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling atomic-markable-ptr v0.1.0 (https://github.com/jamescarterbell/AtomicMarkablePtr?branch=main#114283e0)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling Assignment3A v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AtomicBool` and `AtomicPtr`
[INFO] [stdout]  --> src/main.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{Ordering, AtomicPtr, AtomicBool};
[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 variable: `i`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for i in 0..25{
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:58:29
[INFO] [stdout]    |
[INFO] [stdout] 58 | ...                   head_clone.delete(&gift);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |                             let _ = head_clone.delete(&gift);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<T>{
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<'_, T>{
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "d14699431f6d0d209d0b63e6164e7acadce528154cd34c3458af4bf5aa7b878b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14699431f6d0d209d0b63e6164e7acadce528154cd34c3458af4bf5aa7b878b", kill_on_drop: false }`
[INFO] [stdout] d14699431f6d0d209d0b63e6164e7acadce528154cd34c3458af4bf5aa7b878b
[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=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" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fa3b2e0d8de678c96686b5501836d88e05e4485465f9f44ac1510c3e94484ff
[INFO] running `Command { std: "docker" "start" "-a" "5fa3b2e0d8de678c96686b5501836d88e05e4485465f9f44ac1510c3e94484ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling Assignment3A v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AtomicBool` and `AtomicPtr`
[INFO] [stdout]  --> src/main.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{Ordering, AtomicPtr, AtomicBool};
[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 variable: `i`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for i in 0..25{
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/main.rs:360:13
[INFO] [stdout]     |
[INFO] [stdout] 360 |         for q in 0..1000{
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/main.rs:404:13
[INFO] [stdout]     |
[INFO] [stdout] 404 |         for q in 0..100{
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:58:29
[INFO] [stdout]    |
[INFO] [stdout] 58 | ...                   head_clone.delete(&gift);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |                             let _ = head_clone.delete(&gift);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<T>{
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<'_, T>{
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |                 thread.join();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 393 |                 let _ = thread.join();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:438:25
[INFO] [stdout]     |
[INFO] [stdout] 438 |                         head_clone.delete(&i);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 438 |                         let _ = head_clone.delete(&i);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:444:17
[INFO] [stdout]     |
[INFO] [stdout] 444 |                 thread.join();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 444 |                 let _ = thread.join();
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "5fa3b2e0d8de678c96686b5501836d88e05e4485465f9f44ac1510c3e94484ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa3b2e0d8de678c96686b5501836d88e05e4485465f9f44ac1510c3e94484ff", kill_on_drop: false }`
[INFO] [stdout] 5fa3b2e0d8de678c96686b5501836d88e05e4485465f9f44ac1510c3e94484ff
[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=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" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e39e6f1c68e925faf2cf32b975e2f15ad06444e2bbb1352786b5635326c2e148
[INFO] running `Command { std: "docker" "start" "-a" "e39e6f1c68e925faf2cf32b975e2f15ad06444e2bbb1352786b5635326c2e148", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `AtomicBool` and `AtomicPtr`
[INFO] [stderr]  --> src/main.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::atomic::{Ordering, AtomicPtr, AtomicBool};
[INFO] [stderr]   |                                   ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in 0..25{
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `q`
[INFO] [stderr]    --> src/main.rs:360:13
[INFO] [stderr]     |
[INFO] [stderr] 360 |         for q in 0..1000{
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `q`
[INFO] [stderr]    --> src/main.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |         for q in 0..100{
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:58:29
[INFO] [stderr]    |
[INFO] [stderr] 58 | ...                   head_clone.delete(&gift);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 58 |                             let _ = head_clone.delete(&gift);
[INFO] [stderr]    |                             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/main.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<T>{
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 268 |     pub fn iter(&self) -> OrderedAtomicListIterator<'_, T>{
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:393:17
[INFO] [stderr]     |
[INFO] [stderr] 393 |                 thread.join();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 393 |                 let _ = thread.join();
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:438:25
[INFO] [stderr]     |
[INFO] [stderr] 438 |                         head_clone.delete(&i);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 438 |                         let _ = head_clone.delete(&i);
[INFO] [stderr]     |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:444:17
[INFO] [stderr]     |
[INFO] [stderr] 444 |                 thread.join();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 444 |                 let _ = thread.join();
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `Assignment3A` (bin "Assignment3A" test) generated 9 warnings (run `cargo fix --bin "Assignment3A" -p Assignment3A --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/Assignment3A-cd3d3c3a30de207f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::insert_first_test_one_thread ... ok
[INFO] [stdout] test tests::insertion_deletion_test_multiple_threads has been running for over 60 seconds
[INFO] [stdout] test tests::insertion_test_multiple_threads has been running for over 60 seconds
[INFO] [stdout] test tests::insertion_deletion_test_multiple_threads ... ok
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e39e6f1c68e925faf2cf32b975e2f15ad06444e2bbb1352786b5635326c2e148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39e6f1c68e925faf2cf32b975e2f15ad06444e2bbb1352786b5635326c2e148", kill_on_drop: false }`
[INFO] [stdout] e39e6f1c68e925faf2cf32b975e2f15ad06444e2bbb1352786b5635326c2e148
