[INFO] cloning repository https://github.com/LyonSyonII/linkedlist.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LyonSyonII/linkedlist.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2Flinkedlist.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2Flinkedlist.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef6c321872bb2a0333b98a3e7ae5d68315cbf7a3
[INFO] building LyonSyonII/linkedlist.rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2Flinkedlist.rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LyonSyonII/linkedlist.rs on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LyonSyonII/linkedlist.rs
[INFO] finished tweaking git repo https://github.com/LyonSyonII/linkedlist.rs
[INFO] tweaked toml for git repo https://github.com/LyonSyonII/linkedlist.rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LyonSyonII/linkedlist.rs 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ab5afe4993a4ced4fa78ea7f97bc8fc03bd00fbdf8de2eb1131dbf277ef791c
[INFO] running `Command { std: "docker" "start" "-a" "1ab5afe4993a4ced4fa78ea7f97bc8fc03bd00fbdf8de2eb1131dbf277ef791c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ab5afe4993a4ced4fa78ea7f97bc8fc03bd00fbdf8de2eb1131dbf277ef791c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ab5afe4993a4ced4fa78ea7f97bc8fc03bd00fbdf8de2eb1131dbf277ef791c", kill_on_drop: false }`
[INFO] [stdout] 1ab5afe4993a4ced4fa78ea7f97bc8fc03bd00fbdf8de2eb1131dbf277ef791c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84306e70085d0475a56bb8378bea78c6dcafe7a87b0448b435c3c076b6678019
[INFO] running `Command { std: "docker" "start" "-a" "84306e70085d0475a56bb8378bea78c6dcafe7a87b0448b435c3c076b6678019", kill_on_drop: false }`
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `marker::PhantomData`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{alloc::{Layout, alloc, dealloc}, ptr::NonNull, marker::PhantomData};
[INFO] [stdout]   |                                                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next_mut` and `to_end` are never used
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn next_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn to_end(&mut self) -> &mut 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 0.23s
[INFO] running `Command { std: "docker" "inspect" "84306e70085d0475a56bb8378bea78c6dcafe7a87b0448b435c3c076b6678019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84306e70085d0475a56bb8378bea78c6dcafe7a87b0448b435c3c076b6678019", kill_on_drop: false }`
[INFO] [stdout] 84306e70085d0475a56bb8378bea78c6dcafe7a87b0448b435c3c076b6678019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9576ef427e785d4e31c4978ec5ed01e41e5f69f13b7b03a9f8cf7402e2589920
[INFO] running `Command { std: "docker" "start" "-a" "9576ef427e785d4e31c4978ec5ed01e41e5f69f13b7b03a9f8cf7402e2589920", kill_on_drop: false }`
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `marker::PhantomData`
[INFO] [stdout]  --> src/main.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{alloc::{Layout, alloc, dealloc}, ptr::NonNull, marker::PhantomData};
[INFO] [stdout]   |                                                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next_mut` and `to_end` are never used
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn next_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn to_end(&mut self) -> &mut 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "9576ef427e785d4e31c4978ec5ed01e41e5f69f13b7b03a9f8cf7402e2589920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9576ef427e785d4e31c4978ec5ed01e41e5f69f13b7b03a9f8cf7402e2589920", kill_on_drop: false }`
[INFO] [stdout] 9576ef427e785d4e31c4978ec5ed01e41e5f69f13b7b03a9f8cf7402e2589920