[INFO] cloning repository https://github.com/azaleacolburn/drumindor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/azaleacolburn/drumindor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fdrumindor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fdrumindor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55902cd99b3a4e7413960a080f30f64daf3382a9
[INFO] checking azaleacolburn/drumindor against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fdrumindor" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/azaleacolburn/drumindor
[INFO] finished tweaking git repo https://github.com/azaleacolburn/drumindor
[INFO] tweaked toml for git repo https://github.com/azaleacolburn/drumindor written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/azaleacolburn/drumindor on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/azaleacolburn/drumindor 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd3edc00d1e75e73a0a864450e12681880b51fa6444e3450bb50a14485199c40
[INFO] running `Command { std: "docker" "start" "-a" "dd3edc00d1e75e73a0a864450e12681880b51fa6444e3450bb50a14485199c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd3edc00d1e75e73a0a864450e12681880b51fa6444e3450bb50a14485199c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3edc00d1e75e73a0a864450e12681880b51fa6444e3450bb50a14485199c40", kill_on_drop: false }`
[INFO] [stdout] dd3edc00d1e75e73a0a864450e12681880b51fa6444e3450bb50a14485199c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2546bc2e9b15bea0e776ecd478124d654423c5af5a42a93f6ee3afd663e621ff
[INFO] running `Command { std: "docker" "start" "-a" "2546bc2e9b15bea0e776ecd478124d654423c5af5a42a93f6ee3afd663e621ff", kill_on_drop: false }`
[INFO] [stderr]     Checking drumindor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/linked_list.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 None => return panic!("Index exceeds size of linked list"),
[INFO] [stdout]    |                         ^^^^^^^-------------------------------------------
[INFO] [stdout]    |                         |      |
[INFO] [stdout]    |                         |      any code following this expression is unreachable
[INFO] [stdout]    |                         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/linked_list.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |             None => return panic!("Index exceeds size of linked list"),
[INFO] [stdout]    |                     ^^^^^^^-------------------------------------------
[INFO] [stdout]    |                     |      |
[INFO] [stdout]    |                     |      any code following this expression is unreachable
[INFO] [stdout]    |                     unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to `before_node.next`, as `before_node` is not declared as mutable
[INFO] [stdout]   --> src/linked_list.rs:52:35
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Some(next) => before_node.next = Some(next),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut before_node = unsafe { ptr.read() };
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to `before_node.next`, as `before_node` is not declared as mutable
[INFO] [stdout]   --> src/linked_list.rs:53:29
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     None => before_node.next = None,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut before_node = unsafe { ptr.read() };
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0594`.
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/linked_list.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 None => return panic!("Index exceeds size of linked list"),
[INFO] [stdout]    |                         ^^^^^^^-------------------------------------------
[INFO] [stdout]    |                         |      |
[INFO] [stdout]    |                         |      any code following this expression is unreachable
[INFO] [stdout]    |                         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/linked_list.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |             None => return panic!("Index exceeds size of linked list"),
[INFO] [stdout]    |                     ^^^^^^^-------------------------------------------
[INFO] [stdout]    |                     |      |
[INFO] [stdout]    |                     |      any code following this expression is unreachable
[INFO] [stdout]    |                     unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drumindor` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0594]: cannot assign to `before_node.next`, as `before_node` is not declared as mutable
[INFO] [stdout]   --> src/linked_list.rs:52:35
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     Some(next) => before_node.next = Some(next),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut before_node = unsafe { ptr.read() };
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to `before_node.next`, as `before_node` is not declared as mutable
[INFO] [stdout]   --> src/linked_list.rs:53:29
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     None => before_node.next = None,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut before_node = unsafe { ptr.read() };
[INFO] [stdout]    |             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0594`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drumindor` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2546bc2e9b15bea0e776ecd478124d654423c5af5a42a93f6ee3afd663e621ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2546bc2e9b15bea0e776ecd478124d654423c5af5a42a93f6ee3afd663e621ff", kill_on_drop: false }`
[INFO] [stdout] 2546bc2e9b15bea0e776ecd478124d654423c5af5a42a93f6ee3afd663e621ff
