[INFO] fetching crate bitcoinleveldb-arena 0.1.16-alpha.0...
[INFO] checking bitcoinleveldb-arena-0.1.16-alpha.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate bitcoinleveldb-arena 0.1.16-alpha.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d18c9f1b9bf51aa337b59997418f8a02ec9959c8245fe34ef7692ce88eb22896
[INFO] running `Command { std: "docker" "start" "-a" "d18c9f1b9bf51aa337b59997418f8a02ec9959c8245fe34ef7692ce88eb22896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d18c9f1b9bf51aa337b59997418f8a02ec9959c8245fe34ef7692ce88eb22896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18c9f1b9bf51aa337b59997418f8a02ec9959c8245fe34ef7692ce88eb22896", kill_on_drop: false }`
[INFO] [stdout] d18c9f1b9bf51aa337b59997418f8a02ec9959c8245fe34ef7692ce88eb22896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4dc91f14c8f9bc310d9b1344a9610d2e68c3ec1f4db54abbae278f8d33bec71
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-arena v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/arena_test.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/arena_test.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:81:42
[INFO] [stdout]    |
[INFO] [stdout] 81 |     #[inline] pub fn allocate(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn allocate_fallback(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/arena.rs:126:40
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn allocate_aligned(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_bytes`
[INFO] [stdout]    --> src/arena.rs:150:42
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn allocate_new_block(&mut self, block_bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArenaTest` is never constructed
[INFO] [stdout]  --> src/arena_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct ArenaTest {}
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testarena_test_main` is never used
[INFO] [stdout]   --> src/arena_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn testarena_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `alloc_ptr`, `alloc_bytes_remaining`, `blocks`, and `memory_usage` are never read
[INFO] [stdout]   --> src/arena.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Arena {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     alloc_ptr:             *mut u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     alloc_bytes_remaining: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     blocks:                Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     memory_usage:          AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/arena_test.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/arena_test.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:81:42
[INFO] [stdout]    |
[INFO] [stdout] 81 |     #[inline] pub fn allocate(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn allocate_fallback(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/arena.rs:126:40
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn allocate_aligned(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_bytes`
[INFO] [stdout]    --> src/arena.rs:150:42
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn allocate_new_block(&mut self, block_bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArenaTest` is never constructed
[INFO] [stdout]  --> src/arena_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct ArenaTest {}
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testarena_test_main` is never used
[INFO] [stdout]   --> src/arena_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn testarena_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `alloc_ptr`, `alloc_bytes_remaining`, `blocks`, and `memory_usage` are never read
[INFO] [stdout]   --> src/arena.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Arena {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     alloc_ptr:             *mut u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     alloc_bytes_remaining: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     blocks:                Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     memory_usage:          AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 38s
[INFO] running `Command { std: "docker" "inspect" "c4dc91f14c8f9bc310d9b1344a9610d2e68c3ec1f4db54abbae278f8d33bec71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4dc91f14c8f9bc310d9b1344a9610d2e68c3ec1f4db54abbae278f8d33bec71", kill_on_drop: false }`
[INFO] [stdout] c4dc91f14c8f9bc310d9b1344a9610d2e68c3ec1f4db54abbae278f8d33bec71
[INFO] checking bitcoinleveldb-arena-0.1.16-alpha.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate bitcoinleveldb-arena 0.1.16-alpha.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoinleveldb-arena 0.1.16-alpha.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 1f1aa9eddd9060f8ac86992e24fd23ddfb62dc108f0ce2983066ad1511e20b2a
[INFO] running `Command { std: "docker" "start" "-a" "1f1aa9eddd9060f8ac86992e24fd23ddfb62dc108f0ce2983066ad1511e20b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f1aa9eddd9060f8ac86992e24fd23ddfb62dc108f0ce2983066ad1511e20b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1aa9eddd9060f8ac86992e24fd23ddfb62dc108f0ce2983066ad1511e20b2a", kill_on_drop: false }`
[INFO] [stdout] 1f1aa9eddd9060f8ac86992e24fd23ddfb62dc108f0ce2983066ad1511e20b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d29756fac0ccd6932bd9bf430fc95fe840b0d1ed3131c5a6f501401b7cee6958
[INFO] running `Command { std: "docker" "start" "-a" "d29756fac0ccd6932bd9bf430fc95fe840b0d1ed3131c5a6f501401b7cee6958", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-cfg v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoin-derive v0.1.16-alpha.0
[INFO] [stderr]    Compiling bitcoinleveldb-arena v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/arena_test.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/arena_test.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:81:42
[INFO] [stdout]    |
[INFO] [stdout] 81 |     #[inline] pub fn allocate(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn allocate_fallback(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/arena.rs:126:40
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn allocate_aligned(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_bytes`
[INFO] [stdout]    --> src/arena.rs:150:42
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn allocate_new_block(&mut self, block_bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArenaTest` is never constructed
[INFO] [stdout]  --> src/arena_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct ArenaTest {}
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testarena_test_main` is never used
[INFO] [stdout]   --> src/arena_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn testarena_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `alloc_ptr`, `alloc_bytes_remaining`, `blocks`, and `memory_usage` are never read
[INFO] [stdout]   --> src/arena.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Arena {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     alloc_ptr:             *mut u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     alloc_bytes_remaining: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     blocks:                Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     memory_usage:          AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argc`
[INFO] [stdout]   --> src/arena_test.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         argc: i32,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argv`
[INFO] [stdout]   --> src/arena_test.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         argv: *mut *mut u8) -> i32 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_argv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:81:42
[INFO] [stdout]    |
[INFO] [stdout] 81 |     #[inline] pub fn allocate(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/arena.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn allocate_fallback(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/arena.rs:126:40
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn allocate_aligned(&mut self, bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_bytes`
[INFO] [stdout]    --> src/arena.rs:150:42
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn allocate_new_block(&mut self, block_bytes: usize) -> *mut u8 {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArenaTest` is never constructed
[INFO] [stdout]  --> src/arena_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct ArenaTest {}
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testarena_test_main` is never used
[INFO] [stdout]   --> src/arena_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn testarena_test_main (
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `alloc_ptr`, `alloc_bytes_remaining`, `blocks`, and `memory_usage` are never read
[INFO] [stdout]   --> src/arena.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Arena {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     alloc_ptr:             *mut u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     alloc_bytes_remaining: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     blocks:                Vec<*mut u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     memory_usage:          AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[INFO] running `Command { std: "docker" "inspect" "d29756fac0ccd6932bd9bf430fc95fe840b0d1ed3131c5a6f501401b7cee6958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29756fac0ccd6932bd9bf430fc95fe840b0d1ed3131c5a6f501401b7cee6958", kill_on_drop: false }`
[INFO] [stdout] d29756fac0ccd6932bd9bf430fc95fe840b0d1ed3131c5a6f501401b7cee6958
