[INFO] fetching crate mutcrab 0.1.1...
[INFO] checking mutcrab-0.1.1 against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] extracting crate mutcrab 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mutcrab 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mutcrab 0.1.1
[INFO] tweaked toml for crates.io crate mutcrab 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutcrab 0.1.1 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 crates.io crate mutcrab 0.1.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dae6567361b491ca1c62d30233a31a41fcd7df2dc838e8e78399519916337d3e
[INFO] running `Command { std: "docker" "start" "-a" "dae6567361b491ca1c62d30233a31a41fcd7df2dc838e8e78399519916337d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dae6567361b491ca1c62d30233a31a41fcd7df2dc838e8e78399519916337d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae6567361b491ca1c62d30233a31a41fcd7df2dc838e8e78399519916337d3e", kill_on_drop: false }`
[INFO] [stdout] dae6567361b491ca1c62d30233a31a41fcd7df2dc838e8e78399519916337d3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f0c8b3b106cbb10329024ccd498891332fd23a9021ddc2833dc2759d8209b58a
[INFO] running `Command { std: "docker" "start" "-a" "f0c8b3b106cbb10329024ccd498891332fd23a9021ddc2833dc2759d8209b58a", kill_on_drop: false }`
[INFO] [stderr]     Checking mutcrab v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `edgeMap` and `rootMap` are never read
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ImmutableGraph<N> {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 7 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout] 8 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     rootMap: HashMap<NodeIndex<N>, bool>
[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 `index`, `nodeMap`, `edgeMap`, and `rootMap` are never read
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Builder<N> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 31 |     index: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 32 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 34 |     rootMap: HashMap<NodeIndex<N>, bool>
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_node`, `add_edge`, and `build` are never used
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | / impl <N> Builder<N>
[INFO] [stdout] 38 | | where
[INFO] [stdout] 39 | |     N: Eq + Hash
[INFO] [stdout]    | |________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |       fn add_node(&mut self, value: N) -> NodeIndex<N>
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |       fn add_edge(&mut self, src: NodeIndex<N>, dst: NodeIndex<N>) -> &mut Builder<N> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |       fn build(self) -> ImmutableGraph<N> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/mutcrab/base/ptrbox.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn is_null(&self) -> bool {
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<T> Deref for PtrBox<T> {
[INFO] [stdout]    | --------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = T;
[INFO] [stdout]    |     ----------- 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/mutcrab/base/ptrbox.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn as_box(&self) -> Box<T> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<T> Deref for PtrBox<T> {
[INFO] [stdout]    | --------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `node_map`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `edgeMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `edge_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `rootMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     rootMap: HashMap<NodeIndex<N>, bool>
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `root_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `node_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `edgeMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `edge_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `rootMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     rootMap: HashMap<NodeIndex<N>, bool>
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `root_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mutcrab` (lib) due to 2 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `mut_readwrite_test` is never used
[INFO] [stdout]    --> src/mutcrab/collection/list/lock_free_queue.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |     fn mut_readwrite_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/mutcrab/collection/list/lock_free_queue.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `edgeMap` and `rootMap` are never read
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ImmutableGraph<N> {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 7 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout] 8 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     rootMap: HashMap<NodeIndex<N>, bool>
[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/mutcrab/base/ptrbox.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn is_null(&self) -> bool {
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<T> Deref for PtrBox<T> {
[INFO] [stdout]    | --------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = T;
[INFO] [stdout]    |     ----------- 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/mutcrab/base/ptrbox.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn as_box(&self) -> Box<T> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<T> Deref for PtrBox<T> {
[INFO] [stdout]    | --------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = T;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `node_map`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `edgeMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `edge_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `rootMap` should have a snake case name
[INFO] [stdout]  --> src/mutcrab/collection/graph/immutable_graph.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     rootMap: HashMap<NodeIndex<N>, bool>
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `root_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     nodeMap: HashMap<N, NodeIndex<N>>,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `node_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `edgeMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     edgeMap: HashMap<NodeIndex<N>, LinkedList<NodeIndex<N>>>,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `edge_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `rootMap` should have a snake case name
[INFO] [stdout]   --> src/mutcrab/collection/graph/immutable_graph.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     rootMap: HashMap<NodeIndex<N>, bool>
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `root_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mutcrab` (lib test) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f0c8b3b106cbb10329024ccd498891332fd23a9021ddc2833dc2759d8209b58a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c8b3b106cbb10329024ccd498891332fd23a9021ddc2833dc2759d8209b58a", kill_on_drop: false }`
[INFO] [stdout] f0c8b3b106cbb10329024ccd498891332fd23a9021ddc2833dc2759d8209b58a
