[INFO] fetching crate flize 0.0.0...
[INFO] checking flize-0.0.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate flize 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate flize 0.0.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flize 0.0.0
[INFO] finished tweaking crates.io crate flize 0.0.0
[INFO] tweaked toml for crates.io crate flize 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cab95a76259615e542d7c20c7191c1865dee826f29a280493fbad398802c7119
[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" "cab95a76259615e542d7c20c7191c1865dee826f29a280493fbad398802c7119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cab95a76259615e542d7c20c7191c1865dee826f29a280493fbad398802c7119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab95a76259615e542d7c20c7191c1865dee826f29a280493fbad398802c7119", kill_on_drop: false }`
[INFO] [stdout] cab95a76259615e542d7c20c7191c1865dee826f29a280493fbad398802c7119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fcf8a3cbb03abf57e8580042f33f6ed220cfa82ab1623168a77a66a81982772
[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" "8fcf8a3cbb03abf57e8580042f33f6ed220cfa82ab1623168a77a66a81982772", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking flize v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `NUMS_0`
[INFO] [stdout]  --> src/fastrng.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | const NUMS_0: u64 = 2654435840;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_1`
[INFO] [stdout]  --> src/fastrng.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | const NUMS_1: u64 = 6364136223846793005;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_2`
[INFO] [stdout]  --> src/fastrng.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NUMS_2: u64 = 0xa0761d6478bd642f;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_3`
[INFO] [stdout]  --> src/fastrng.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const NUMS_3: u64 = 0xe7037ed1a0b428db;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FastRng`
[INFO] [stdout]   --> src/fastrng.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FastRng {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/fastrng.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(seed: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]   --> src/fastrng.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn generate(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter`
[INFO] [stdout]   --> src/thread_local/mod.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn iter(&self) -> impl Iterator<Item = &T> + '_ {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_0`
[INFO] [stdout]  --> src/fastrng.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | const NUMS_0: u64 = 2654435840;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_1`
[INFO] [stdout]  --> src/fastrng.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | const NUMS_1: u64 = 6364136223846793005;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_2`
[INFO] [stdout]  --> src/fastrng.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | const NUMS_2: u64 = 0xa0761d6478bd642f;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUMS_3`
[INFO] [stdout]  --> src/fastrng.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const NUMS_3: u64 = 0xe7037ed1a0b428db;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FastRng`
[INFO] [stdout]   --> src/fastrng.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct FastRng {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/fastrng.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(seed: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]   --> src/fastrng.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn generate(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/thread_local/priority_queue.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/thread_local/table.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(max: usize, previous: Option<Box<Self>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init_empty_buckets`
[INFO] [stdout]   --> src/thread_local/table.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         fn init_empty_buckets<T>(amount: usize) -> Box<[AtomicPtr<T>]> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_as_owner`
[INFO] [stdout]   --> src/thread_local/table.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub unsafe fn get_as_owner(&self, key: usize) -> Option<*mut T> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/thread_local/table.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub unsafe fn set(&self, key: usize, ptr: *mut T) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `limit`
[INFO] [stdout]   --> src/thread_local/thread_id.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     limit: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `allocate`
[INFO] [stdout]   --> src/thread_local/thread_id.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn allocate(&mut self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/thread_local/thread_id.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get`
[INFO] [stdout]   --> src/thread_local/thread_id.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn get() -> u32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/thread_local/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/thread_local/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn get<F>(&self, create: F) -> &T
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter`
[INFO] [stdout]   --> src/thread_local/mod.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn iter(&self) -> impl Iterator<Item = &T> + '_ {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `table`
[INFO] [stdout]   --> src/thread_local/mod.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn table(&self, order: Ordering) -> &Table<T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_fast`
[INFO] [stdout]   --> src/thread_local/mod.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_fast(&self, key: usize) -> Option<&T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_slow`
[INFO] [stdout]   --> src/thread_local/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn get_slow(&self, key: usize) -> Option<&T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/thread_local/mod.rs:85:15
[INFO] [stdout]    |
[INFO] [stdout] 85 |     unsafe fn insert(&self, key: usize, data: *mut T) -> &T {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "8fcf8a3cbb03abf57e8580042f33f6ed220cfa82ab1623168a77a66a81982772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fcf8a3cbb03abf57e8580042f33f6ed220cfa82ab1623168a77a66a81982772", kill_on_drop: false }`
[INFO] [stdout] 8fcf8a3cbb03abf57e8580042f33f6ed220cfa82ab1623168a77a66a81982772