[INFO] fetching crate rusty_junctions 0.1.0...
[INFO] checking rusty_junctions-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rusty_junctions 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rusty_junctions 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty_junctions 0.1.0
[INFO] finished tweaking crates.io crate rusty_junctions 0.1.0
[INFO] tweaked toml for crates.io crate rusty_junctions 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0c8eae68da6e17a2d8330d60cf574987c146b18ca9b6298333f2bb0277c911b
[INFO] running `Command { std: "docker" "start" "-a" "a0c8eae68da6e17a2d8330d60cf574987c146b18ca9b6298333f2bb0277c911b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0c8eae68da6e17a2d8330d60cf574987c146b18ca9b6298333f2bb0277c911b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0c8eae68da6e17a2d8330d60cf574987c146b18ca9b6298333f2bb0277c911b", kill_on_drop: false }`
[INFO] [stdout] a0c8eae68da6e17a2d8330d60cf574987c146b18ca9b6298333f2bb0277c911b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7daa247e8356a0fc24c8513eff23c4453b7f59c12cb3a59d49338376ef58dab3
[INFO] running `Command { std: "docker" "start" "-a" "7daa247e8356a0fc24c8513eff23c4453b7f59c12cb3a59d49338376ef58dab3", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_junctions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `contains_items` is never used
[INFO] [stdout]   --> src/bag.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl<K, V> Bag<K, V>
[INFO] [stdout] 19 | | where
[INFO] [stdout] 20 | |     K: Hash + Eq,
[INFO] [stdout]    | |_________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |       pub(crate) fn contains_items(&self, key: &K) -> bool {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]   --> src/channels.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> SendChannel<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 35 |     /// Return the channel's ID.
[INFO] [stdout] 36 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/channels.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl<R> RecvChannel<R> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] 126 |     /// Return the channel's ID.
[INFO] [stdout] 127 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/channels.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl<T, R> BidirChannel<T, R> {
[INFO] [stdout]     | ----------------------------- method in this implementation
[INFO] [stdout] 237 |     /// Return the channel's ID.
[INFO] [stdout] 238 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert_multiple` and `peek_first` are never used
[INFO] [stdout]   --> src/inverted_index.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | / impl<K, V> InvertedIndex<K, V>
[INFO] [stdout] 17 | | where
[INFO] [stdout] 18 | |     K: Hash + Eq,
[INFO] [stdout]    | |_________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |       pub(crate) fn insert_multiple(&mut self, key: K, values: impl IntoIterator<Item = V>) {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |       pub(crate) fn peek_first(&self, key: &K) -> Option<&V> {
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `junction_id` is never read
[INFO] [stdout]    --> src/patterns.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 767 |     pub struct SendPartialPattern<T, U, V> {
[INFO] [stdout]     |                ------------------ field in this struct
[INFO] [stdout] 768 |         junction_id: ids::JunctionId,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/types.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 221 |     impl ChannelId {
[INFO] [stdout]     |     -------------- associated function in this implementation
[INFO] [stdout] 222 |         pub(crate) fn new(value: usize) -> ChannelId {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]   --> src/channels.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> SendChannel<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 35 |     /// Return the channel's ID.
[INFO] [stdout] 36 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]    |                   ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/channels.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl<R> RecvChannel<R> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] 126 |     /// Return the channel's ID.
[INFO] [stdout] 127 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/channels.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl<T, R> BidirChannel<T, R> {
[INFO] [stdout]     | ----------------------------- method in this implementation
[INFO] [stdout] 237 |     /// Return the channel's ID.
[INFO] [stdout] 238 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `junction_id` is never read
[INFO] [stdout]    --> src/patterns.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 767 |     pub struct SendPartialPattern<T, U, V> {
[INFO] [stdout]     |                ------------------ field in this struct
[INFO] [stdout] 768 |         junction_id: ids::JunctionId,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/types.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 221 |     impl ChannelId {
[INFO] [stdout]     |     -------------- associated function in this implementation
[INFO] [stdout] 222 |         pub(crate) fn new(value: usize) -> ChannelId {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "7daa247e8356a0fc24c8513eff23c4453b7f59c12cb3a59d49338376ef58dab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7daa247e8356a0fc24c8513eff23c4453b7f59c12cb3a59d49338376ef58dab3", kill_on_drop: false }`
[INFO] [stdout] 7daa247e8356a0fc24c8513eff23c4453b7f59c12cb3a59d49338376ef58dab3