[INFO] fetching crate rusty_junctions 0.1.0...
[INFO] checking rusty_junctions-0.1.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rusty_junctions 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rusty_junctions 0.1.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e477d581a5361b68c71838374e681b0c59d601a0642cc74269c0248fae59c9ef
[INFO] running `Command { std: "docker" "start" "-a" "e477d581a5361b68c71838374e681b0c59d601a0642cc74269c0248fae59c9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e477d581a5361b68c71838374e681b0c59d601a0642cc74269c0248fae59c9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e477d581a5361b68c71838374e681b0c59d601a0642cc74269c0248fae59c9ef", kill_on_drop: false }`
[INFO] [stdout] e477d581a5361b68c71838374e681b0c59d601a0642cc74269c0248fae59c9ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02824f78ce0230bd0e1e1fb4f4ad732b5e74f6984f78642687cb7b717aa8bbf6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02824f78ce0230bd0e1e1fb4f4ad732b5e74f6984f78642687cb7b717aa8bbf6", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_junctions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `contains_items`
[INFO] [stdout]   --> src/bag.rs:56:19
[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: associated function is never used: `id`
[INFO] [stdout]   --> src/channels.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/channels.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/channels.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_multiple`
[INFO] [stdout]   --> src/inverted_index.rs:49:19
[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] 
[INFO] [stdout] warning: associated function is never used: `peek_first`
[INFO] [stdout]   --> src/inverted_index.rs:65:19
[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 is never read: `junction_id`
[INFO] [stdout]    --> src/patterns.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 768 |         junction_id: ids::JunctionId,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/types.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |         pub(crate) fn new(value: usize) -> ChannelId {
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/channels.rs:36:19
[INFO] [stdout]    |
[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: associated function is never used: `id`
[INFO] [stdout]    --> src/channels.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/channels.rs:238:19
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub(crate) fn id(&self) -> ids::ChannelId {
[INFO] [stdout]     |                   ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `junction_id`
[INFO] [stdout]    --> src/patterns.rs:768:9
[INFO] [stdout]     |
[INFO] [stdout] 768 |         junction_id: ids::JunctionId,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/types.rs:222:23
[INFO] [stdout]     |
[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 [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "02824f78ce0230bd0e1e1fb4f4ad732b5e74f6984f78642687cb7b717aa8bbf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02824f78ce0230bd0e1e1fb4f4ad732b5e74f6984f78642687cb7b717aa8bbf6", kill_on_drop: false }`
[INFO] [stdout] 02824f78ce0230bd0e1e1fb4f4ad732b5e74f6984f78642687cb7b717aa8bbf6