[INFO] cloning repository https://github.com/willothy/bwtree-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willothy/bwtree-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillothy%2Fbwtree-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillothy%2Fbwtree-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 579e586abdde3b311b5bd3711e5aeae8dc2f385c
[INFO] checking willothy/bwtree-rs against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillothy%2Fbwtree-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/willothy/bwtree-rs
[INFO] finished tweaking git repo https://github.com/willothy/bwtree-rs
[INFO] tweaked toml for git repo https://github.com/willothy/bwtree-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/willothy/bwtree-rs 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/willothy/bwtree-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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f989883ec48e0d219382006f876c5a580a123601aeb2858600b601c52938665c
[INFO] running `Command { std: "docker" "start" "-a" "f989883ec48e0d219382006f876c5a580a123601aeb2858600b601c52938665c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f989883ec48e0d219382006f876c5a580a123601aeb2858600b601c52938665c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f989883ec48e0d219382006f876c5a580a123601aeb2858600b601c52938665c", kill_on_drop: false }`
[INFO] [stdout] f989883ec48e0d219382006f876c5a580a123601aeb2858600b601c52938665c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32895df56f5be994070120ff9e5b0a6b68559a70ec54e260d4fdcf93e24a3da0
[INFO] running `Command { std: "docker" "start" "-a" "32895df56f5be994070120ff9e5b0a6b68559a70ec54e260d4fdcf93e24a3da0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking boxcar v0.2.11
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking bwtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `SplitChild` is never constructed
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Delta<K, V> {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     SplitChild { separator: K, right: PID },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/lib.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn key(&self) -> &'a K {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 | impl<'a, K, V> Deref for Ref<'a, K, V> {
[INFO] [stdout]    | -------------------------------------- trait implemented here
[INFO] [stdout] 48 |     type Target = &'a V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: trait implemented here
[INFO] [stdout]   ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]    |
[INFO] [stdout]    = note: with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/lib.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn value(&self) -> &'a V {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 | impl<'a, K, V> Deref for Ref<'a, K, V> {
[INFO] [stdout]    | -------------------------------------- trait implemented here
[INFO] [stdout] 48 |     type Target = &'a V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: trait implemented here
[INFO] [stdout]   ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]    |
[INFO] [stdout]    = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bwtree` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variant `SplitChild` is never constructed
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Delta<K, V> {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     SplitChild { separator: K, right: PID },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/lib.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn key(&self) -> &'a K {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 | impl<'a, K, V> Deref for Ref<'a, K, V> {
[INFO] [stdout]    | -------------------------------------- trait implemented here
[INFO] [stdout] 48 |     type Target = &'a V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: trait implemented here
[INFO] [stdout]   ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]    |
[INFO] [stdout]    = note: with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/lib.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn value(&self) -> &'a V {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 | impl<'a, K, V> Deref for Ref<'a, K, V> {
[INFO] [stdout]    | -------------------------------------- trait implemented here
[INFO] [stdout] 48 |     type Target = &'a V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:155:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: trait implemented here
[INFO] [stdout]   ::: /rustc/7b3da9103634dffd4f4365cfd8642427c781d99f/library/core/src/ops/deref.rs:156:4
[INFO] [stdout]    |
[INFO] [stdout]    = note: with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bwtree` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "32895df56f5be994070120ff9e5b0a6b68559a70ec54e260d4fdcf93e24a3da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32895df56f5be994070120ff9e5b0a6b68559a70ec54e260d4fdcf93e24a3da0", kill_on_drop: false }`
[INFO] [stdout] 32895df56f5be994070120ff9e5b0a6b68559a70ec54e260d4fdcf93e24a3da0