[INFO] fetching crate bitcoin-cuckoo-cache 0.1.16-alpha.0...
[INFO] checking bitcoin-cuckoo-cache-0.1.16-alpha.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate bitcoin-cuckoo-cache 0.1.16-alpha.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate bitcoin-cuckoo-cache 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 bitcoin-cuckoo-cache 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoin-cuckoo-cache 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoin-cuckoo-cache 0.1.16-alpha.0 written to /workspace/builds/worker-0-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] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e8b45d52b3643a36859916c11a7257c4b651f7e1501332020b1fcc854f8b5ddf
[INFO] running `Command { std: "docker" "start" "-a" "e8b45d52b3643a36859916c11a7257c4b651f7e1501332020b1fcc854f8b5ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8b45d52b3643a36859916c11a7257c4b651f7e1501332020b1fcc854f8b5ddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b45d52b3643a36859916c11a7257c4b651f7e1501332020b1fcc854f8b5ddf", kill_on_drop: false }`
[INFO] [stdout] e8b45d52b3643a36859916c11a7257c4b651f7e1501332020b1fcc854f8b5ddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b475f84e88297f8adf224181e0af33d0c1640eba4b10082cf9bab7d024413f99
[INFO] running `Command { std: "docker" "start" "-a" "b475f84e88297f8adf224181e0af33d0c1640eba4b10082cf9bab7d024413f99", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bitset v0.1.2
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[INFO] [stderr]    Compiling float-ord v0.3.2
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[INFO] [stderr]    Compiling cfg_aliases v0.1.1
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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-cuckoo-cache v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:266:44
[INFO] [stdout]     |
[INFO] [stdout] 266 |     #[inline] pub fn compute_hashes(&self, e: &Element) -> [u32; 8] {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:312:41
[INFO] [stdout]     |
[INFO] [stdout] 312 |     #[inline] pub fn allow_erase(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:333:41
[INFO] [stdout]     |
[INFO] [stdout] 333 |     #[inline] pub fn please_keep(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_size`
[INFO] [stdout]    --> src/cuckoocache.rs:411:29
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn setup(&mut self, new_size: u32) -> u32 {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/cuckoocache.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn setup_bytes(&mut self, bytes: usize) -> u32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:496:40
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[inline] pub fn insert(&mut self, e: Element)  {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 |         e:     &Element,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `erase`
[INFO] [stdout]    --> src/cuckoocache.rs:594:9
[INFO] [stdout]     |
[INFO] [stdout] 594 |         erase: bool) -> bool {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_erase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:78:39
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[inline] pub fn setup(&mut self, b: u32)  {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[inline] pub fn bit_set(&mut self, s: u32)  {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 |     #[inline] pub fn bit_unset(&mut self, s: u32)  {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[inline] pub fn bit_is_set(&self, s: u32) -> bool {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/cuckoocache.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 80  | pub struct Cache<Element,Hash> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 86  |     table:                   Vec<Element>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93  |     size:                    u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     collection_flags:        RefCell<BitPackedAtomicFlags>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     epoch_flags:             RefCell<Vec<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     epoch_heuristic_counter: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     epoch_size:              u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     depth_limit:             u8,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     hash_function:           Hash,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BitPackedAtomicFlags {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] 27 |     mem: Box<Rc<[AtomicU8]>>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:266:44
[INFO] [stdout]     |
[INFO] [stdout] 266 |     #[inline] pub fn compute_hashes(&self, e: &Element) -> [u32; 8] {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:312:41
[INFO] [stdout]     |
[INFO] [stdout] 312 |     #[inline] pub fn allow_erase(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:333:41
[INFO] [stdout]     |
[INFO] [stdout] 333 |     #[inline] pub fn please_keep(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_size`
[INFO] [stdout]    --> src/cuckoocache.rs:411:29
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn setup(&mut self, new_size: u32) -> u32 {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/cuckoocache.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn setup_bytes(&mut self, bytes: usize) -> u32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:496:40
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[inline] pub fn insert(&mut self, e: Element)  {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 |         e:     &Element,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `erase`
[INFO] [stdout]    --> src/cuckoocache.rs:594:9
[INFO] [stdout]     |
[INFO] [stdout] 594 |         erase: bool) -> bool {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_erase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:78:39
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[inline] pub fn setup(&mut self, b: u32)  {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[inline] pub fn bit_set(&mut self, s: u32)  {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 |     #[inline] pub fn bit_unset(&mut self, s: u32)  {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[inline] pub fn bit_is_set(&self, s: u32) -> bool {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/cuckoocache.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 80  | pub struct Cache<Element,Hash> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 86  |     table:                   Vec<Element>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93  |     size:                    u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     collection_flags:        RefCell<BitPackedAtomicFlags>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     epoch_flags:             RefCell<Vec<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     epoch_heuristic_counter: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     epoch_size:              u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     depth_limit:             u8,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     hash_function:           Hash,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BitPackedAtomicFlags {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] 27 |     mem: Box<Rc<[AtomicU8]>>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] running `Command { std: "docker" "inspect" "b475f84e88297f8adf224181e0af33d0c1640eba4b10082cf9bab7d024413f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b475f84e88297f8adf224181e0af33d0c1640eba4b10082cf9bab7d024413f99", kill_on_drop: false }`
[INFO] [stdout] b475f84e88297f8adf224181e0af33d0c1640eba4b10082cf9bab7d024413f99
[INFO] checking bitcoin-cuckoo-cache-0.1.16-alpha.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate bitcoin-cuckoo-cache 0.1.16-alpha.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate bitcoin-cuckoo-cache 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 bitcoin-cuckoo-cache 0.1.16-alpha.0
[INFO] finished tweaking crates.io crate bitcoin-cuckoo-cache 0.1.16-alpha.0
[INFO] tweaked toml for crates.io crate bitcoin-cuckoo-cache 0.1.16-alpha.0 written to /workspace/builds/worker-0-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 }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_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" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db1b6336b2f4a33818a994d6075efb11c1287894ed2de01509899b964bfa8864
[INFO] running `Command { std: "docker" "start" "-a" "db1b6336b2f4a33818a994d6075efb11c1287894ed2de01509899b964bfa8864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db1b6336b2f4a33818a994d6075efb11c1287894ed2de01509899b964bfa8864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db1b6336b2f4a33818a994d6075efb11c1287894ed2de01509899b964bfa8864", kill_on_drop: false }`
[INFO] [stdout] db1b6336b2f4a33818a994d6075efb11c1287894ed2de01509899b964bfa8864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d0aa2d8c8021e8e9a37a63218bd7ae61aba509b6a18f2212907cd20d5dc19bdf
[INFO] running `Command { std: "docker" "start" "-a" "d0aa2d8c8021e8e9a37a63218bd7ae61aba509b6a18f2212907cd20d5dc19bdf", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitcoin-imports v0.1.16-alpha.0
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[INFO] [stderr]    Compiling bitcoin-cuckoo-cache v0.1.16-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:266:44
[INFO] [stdout]     |
[INFO] [stdout] 266 |     #[inline] pub fn compute_hashes(&self, e: &Element) -> [u32; 8] {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:312:41
[INFO] [stdout]     |
[INFO] [stdout] 312 |     #[inline] pub fn allow_erase(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:333:41
[INFO] [stdout]     |
[INFO] [stdout] 333 |     #[inline] pub fn please_keep(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_size`
[INFO] [stdout]    --> src/cuckoocache.rs:411:29
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn setup(&mut self, new_size: u32) -> u32 {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/cuckoocache.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn setup_bytes(&mut self, bytes: usize) -> u32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:496:40
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[inline] pub fn insert(&mut self, e: Element)  {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 |         e:     &Element,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `erase`
[INFO] [stdout]    --> src/cuckoocache.rs:594:9
[INFO] [stdout]     |
[INFO] [stdout] 594 |         erase: bool) -> bool {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_erase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:78:39
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[inline] pub fn setup(&mut self, b: u32)  {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[inline] pub fn bit_set(&mut self, s: u32)  {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 |     #[inline] pub fn bit_unset(&mut self, s: u32)  {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[inline] pub fn bit_is_set(&self, s: u32) -> bool {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/cuckoocache.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 80  | pub struct Cache<Element,Hash> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 86  |     table:                   Vec<Element>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93  |     size:                    u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     collection_flags:        RefCell<BitPackedAtomicFlags>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     epoch_flags:             RefCell<Vec<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     epoch_heuristic_counter: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     epoch_size:              u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     depth_limit:             u8,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     hash_function:           Hash,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BitPackedAtomicFlags {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] 27 |     mem: Box<Rc<[AtomicU8]>>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:266:44
[INFO] [stdout]     |
[INFO] [stdout] 266 |     #[inline] pub fn compute_hashes(&self, e: &Element) -> [u32; 8] {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:312:41
[INFO] [stdout]     |
[INFO] [stdout] 312 |     #[inline] pub fn allow_erase(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/cuckoocache.rs:333:41
[INFO] [stdout]     |
[INFO] [stdout] 333 |     #[inline] pub fn please_keep(&self, n: u32)  {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_size`
[INFO] [stdout]    --> src/cuckoocache.rs:411:29
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn setup(&mut self, new_size: u32) -> u32 {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]    --> src/cuckoocache.rs:456:35
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn setup_bytes(&mut self, bytes: usize) -> u32 {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:496:40
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[inline] pub fn insert(&mut self, e: Element)  {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/cuckoocache.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 |         e:     &Element,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `erase`
[INFO] [stdout]    --> src/cuckoocache.rs:594:9
[INFO] [stdout]     |
[INFO] [stdout] 594 |         erase: bool) -> bool {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_erase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new(size: u32) -> Self {
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:78:39
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[inline] pub fn setup(&mut self, b: u32)  {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |     #[inline] pub fn bit_set(&mut self, s: u32)  {
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:120:43
[INFO] [stdout]     |
[INFO] [stdout] 120 |     #[inline] pub fn bit_unset(&mut self, s: u32)  {
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/bit_packed_atomic_flags.rs:144:40
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[inline] pub fn bit_is_set(&self, s: u32) -> bool {
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> src/cuckoocache.rs:86:5
[INFO] [stdout]     |
[INFO] [stdout] 80  | pub struct Cache<Element,Hash> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 86  |     table:                   Vec<Element>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93  |     size:                    u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     collection_flags:        RefCell<BitPackedAtomicFlags>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     epoch_flags:             RefCell<Vec<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     epoch_heuristic_counter: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     epoch_size:              u32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     depth_limit:             u8,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     hash_function:           Hash,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/bit_packed_atomic_flags.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BitPackedAtomicFlags {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] 27 |     mem: Box<Rc<[AtomicU8]>>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 51s
[INFO] running `Command { std: "docker" "inspect" "d0aa2d8c8021e8e9a37a63218bd7ae61aba509b6a18f2212907cd20d5dc19bdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0aa2d8c8021e8e9a37a63218bd7ae61aba509b6a18f2212907cd20d5dc19bdf", kill_on_drop: false }`
[INFO] [stdout] d0aa2d8c8021e8e9a37a63218bd7ae61aba509b6a18f2212907cd20d5dc19bdf
