[INFO] cloning repository https://github.com/tempname-cloud/fucklinkedlists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tempname-cloud/fucklinkedlists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftempname-cloud%2Ffucklinkedlists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftempname-cloud%2Ffucklinkedlists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51f13d851b503db51bc539087ef7da99c585f60b
[INFO] checking tempname-cloud/fucklinkedlists against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftempname-cloud%2Ffucklinkedlists" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tempname-cloud/fucklinkedlists
[INFO] finished tweaking git repo https://github.com/tempname-cloud/fucklinkedlists
[INFO] tweaked toml for git repo https://github.com/tempname-cloud/fucklinkedlists written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tempname-cloud/fucklinkedlists on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tempname-cloud/fucklinkedlists 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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee5aacd3fb9d896ad15c566fd283bdf14c77e4da40d06c3dca3c5069a217d96e
[INFO] running `Command { std: "docker" "start" "-a" "ee5aacd3fb9d896ad15c566fd283bdf14c77e4da40d06c3dca3c5069a217d96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee5aacd3fb9d896ad15c566fd283bdf14c77e4da40d06c3dca3c5069a217d96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5aacd3fb9d896ad15c566fd283bdf14c77e4da40d06c3dca3c5069a217d96e", kill_on_drop: false }`
[INFO] [stdout] ee5aacd3fb9d896ad15c566fd283bdf14c77e4da40d06c3dca3c5069a217d96e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dinherent-method-on-receiver" "-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9ce77e6dda43f104f7ca0e361c644d986745d06be170295630d9be1887691aa
[INFO] running `Command { std: "docker" "start" "-a" "b9ce77e6dda43f104f7ca0e361c644d986745d06be170295630d9be1887691aa", kill_on_drop: false }`
[INFO] [stderr]     Checking fucklinkedlists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Node` is more private than the item `Link::More::0`
[INFO] [stdout]   --> src/first.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout]  9 |     More(Box<Node>)
[INFO] [stdout]    |          ^^^^^^^^^ field `Link::More::0` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/first.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]  --> src/first.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct List {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |     head: Link
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `next` are never read
[INFO] [stdout]   --> src/first.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 13 |     data: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     next: Link
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Node` is more private than the item `Link::More::0`
[INFO] [stdout]   --> src/first.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout]  9 |     More(Box<Node>)
[INFO] [stdout]    |          ^^^^^^^^^ field `Link::More::0` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/first.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `head` is never read
[INFO] [stdout]  --> src/first.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct List {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |     head: Link
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `next` are never read
[INFO] [stdout]   --> src/first.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 13 |     data: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     next: Link
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b9ce77e6dda43f104f7ca0e361c644d986745d06be170295630d9be1887691aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ce77e6dda43f104f7ca0e361c644d986745d06be170295630d9be1887691aa", kill_on_drop: false }`
[INFO] [stdout] b9ce77e6dda43f104f7ca0e361c644d986745d06be170295630d9be1887691aa