[INFO] cloning repository https://github.com/wgnwohykmd941/linked-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wgnwohykmd941/linked-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/wgnwohykmd941/linked-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wgnwohykmd941/linked-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 355d1bbea04b36b17472ebbfb6a59513fa61ffbf
[INFO] checking wgnwohykmd941/linked-list against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgnwohykmd941%2Flinked-list" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wgnwohykmd941/linked-list
[INFO] finished tweaking git repo https://github.com/wgnwohykmd941/linked-list
[INFO] tweaked toml for git repo https://github.com/wgnwohykmd941/linked-list written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wgnwohykmd941/linked-list on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wgnwohykmd941/linked-list 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b5ec6901cfbe9273a61b414a9f998af2124cdbc154fa542e62d757c167f9ca
[INFO] running `Command { std: "docker" "start" "-a" "71b5ec6901cfbe9273a61b414a9f998af2124cdbc154fa542e62d757c167f9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b5ec6901cfbe9273a61b414a9f998af2124cdbc154fa542e62d757c167f9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b5ec6901cfbe9273a61b414a9f998af2124cdbc154fa542e62d757c167f9ca", kill_on_drop: false }`
[INFO] [stdout] 71b5ec6901cfbe9273a61b414a9f998af2124cdbc154fa542e62d757c167f9ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc5b73a967e70ac238106496b6d5276030c9cd66f597b2e03c87b82151da2ed0
[INFO] running `Command { std: "docker" "start" "-a" "fc5b73a967e70ac238106496b6d5276030c9cd66f597b2e03c87b82151da2ed0", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct  Node {
[INFO] [stdout]    |         ---- field in this struct
[INFO] [stdout] 33 |     data: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/main.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Some(Node) => self.head = Node.next,
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct  Node {
[INFO] [stdout]    |         ---- field in this struct
[INFO] [stdout] 33 |     data: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/main.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Some(Node) => self.head = Node.next,
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "fc5b73a967e70ac238106496b6d5276030c9cd66f597b2e03c87b82151da2ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc5b73a967e70ac238106496b6d5276030c9cd66f597b2e03c87b82151da2ed0", kill_on_drop: false }`
[INFO] [stdout] fc5b73a967e70ac238106496b6d5276030c9cd66f597b2e03c87b82151da2ed0