[INFO] fetching crate priority-queue-rs 0.1.26...
[INFO] testing priority-queue-rs-0.1.26 against 1.91.0 for beta-1.92-2
[INFO] extracting crate priority-queue-rs 0.1.26 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate priority-queue-rs 0.1.26
[INFO] finished tweaking crates.io crate priority-queue-rs 0.1.26
[INFO] tweaked toml for crates.io crate priority-queue-rs 0.1.26 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate priority-queue-rs 0.1.26 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3db3d1e5043e51d0a979602e9f726245f6295d9d096f9cfc52c28865deb8dbab
[INFO] running `Command { std: "docker" "start" "-a" "3db3d1e5043e51d0a979602e9f726245f6295d9d096f9cfc52c28865deb8dbab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3db3d1e5043e51d0a979602e9f726245f6295d9d096f9cfc52c28865deb8dbab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db3d1e5043e51d0a979602e9f726245f6295d9d096f9cfc52c28865deb8dbab", kill_on_drop: false }`
[INFO] [stdout] 3db3d1e5043e51d0a979602e9f726245f6295d9d096f9cfc52c28865deb8dbab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ce7094e59c7f5ab7aed9bef9f6be75e9578f6014734341903d4fb7694c0aad4
[INFO] running `Command { std: "docker" "start" "-a" "0ce7094e59c7f5ab7aed9bef9f6be75e9578f6014734341903d4fb7694c0aad4", kill_on_drop: false }`
[INFO] [stderr]    Compiling priority-queue-rs v0.1.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PriorityQueueNode` is never constructed
[INFO] [stdout]  --> src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct PriorityQueueNode<T> where T: Sized {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> PriorityQueueNode<T> {
[INFO] [stdout]   | ---------------------------- associated function in this implementation
[INFO] [stdout] 7 |     pub fn new(priority: u32, value: T) -> PriorityQueueNode<T> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PriorityQueue` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct PriorityQueue<T> where T: Sized {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `pop`, `peek`, and `push` are never used
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<T> PriorityQueue<T> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 27 |     pub fn new() -> PriorityQueue<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn peek(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn push(&mut self, priority: u32, value: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "0ce7094e59c7f5ab7aed9bef9f6be75e9578f6014734341903d4fb7694c0aad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce7094e59c7f5ab7aed9bef9f6be75e9578f6014734341903d4fb7694c0aad4", kill_on_drop: false }`
[INFO] [stdout] 0ce7094e59c7f5ab7aed9bef9f6be75e9578f6014734341903d4fb7694c0aad4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ce0af5d17286a3e5e37efce3ccbcfb09bdade0f8760512c092ff1e5a4a86f9
[INFO] running `Command { std: "docker" "start" "-a" "69ce0af5d17286a3e5e37efce3ccbcfb09bdade0f8760512c092ff1e5a4a86f9", kill_on_drop: false }`
[INFO] [stdout] warning: struct `PriorityQueueNode` is never constructed
[INFO] [stdout]  --> src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct PriorityQueueNode<T> where T: Sized {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling priority-queue-rs v0.1.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> PriorityQueueNode<T> {
[INFO] [stdout]   | ---------------------------- associated function in this implementation
[INFO] [stdout] 7 |     pub fn new(priority: u32, value: T) -> PriorityQueueNode<T> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PriorityQueue` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct PriorityQueue<T> where T: Sized {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `pop`, `peek`, and `push` are never used
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<T> PriorityQueue<T> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 27 |     pub fn new() -> PriorityQueue<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn peek(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn push(&mut self, priority: u32, value: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `priority`
[INFO] [stdout]    --> src/lib.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         for priority in 0..10 {
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_priority`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "69ce0af5d17286a3e5e37efce3ccbcfb09bdade0f8760512c092ff1e5a4a86f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ce0af5d17286a3e5e37efce3ccbcfb09bdade0f8760512c092ff1e5a4a86f9", kill_on_drop: false }`
[INFO] [stdout] 69ce0af5d17286a3e5e37efce3ccbcfb09bdade0f8760512c092ff1e5a4a86f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb23457cba05a1c3044358f84ea631ee100ae7230e2b02d8ea4ae0405f03c473
[INFO] running `Command { std: "docker" "start" "-a" "eb23457cba05a1c3044358f84ea631ee100ae7230e2b02d8ea4ae0405f03c473", kill_on_drop: false }`
[INFO] [stderr] warning: struct `PriorityQueueNode` is never constructed
[INFO] [stderr]  --> src/lib.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct PriorityQueueNode<T> where T: Sized {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/lib.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<T> PriorityQueueNode<T> {
[INFO] [stderr]   | ---------------------------- associated function in this implementation
[INFO] [stderr] 7 |     pub fn new(priority: u32, value: T) -> PriorityQueueNode<T> {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PriorityQueue` is never constructed
[INFO] [stderr]   --> src/lib.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct PriorityQueue<T> where T: Sized {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `pop`, `peek`, and `push` are never used
[INFO] [stderr]   --> src/lib.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl<T> PriorityQueue<T> {
[INFO] [stderr]    | ------------------------ associated items in this implementation
[INFO] [stderr] 27 |     pub fn new() -> PriorityQueue<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |     pub fn peek(&mut self) -> Option<&mut T> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 96 |     pub fn push(&mut self, priority: u32, value: T) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `priority-queue-rs` (lib) generated 4 warnings
[INFO] [stderr] warning: unused variable: `priority`
[INFO] [stderr]    --> src/lib.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         for priority in 0..10 {
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_priority`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `priority-queue-rs` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/priority_queue_rs-7f98ea532eae1b21)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests priority_queue_rs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb23457cba05a1c3044358f84ea631ee100ae7230e2b02d8ea4ae0405f03c473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb23457cba05a1c3044358f84ea631ee100ae7230e2b02d8ea4ae0405f03c473", kill_on_drop: false }`
[INFO] [stdout] eb23457cba05a1c3044358f84ea631ee100ae7230e2b02d8ea4ae0405f03c473
