[INFO] cloning repository https://github.com/Alex6323/pow-preview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alex6323/pow-preview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex6323%2Fpow-preview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex6323%2Fpow-preview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7101567c75636243cbe04e65467564c273ed69a
[INFO] checking Alex6323/pow-preview against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlex6323%2Fpow-preview" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alex6323/pow-preview on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Alex6323/pow-preview
[INFO] finished tweaking git repo https://github.com/Alex6323/pow-preview
[INFO] tweaked toml for git repo https://github.com/Alex6323/pow-preview written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Alex6323/pow-preview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b6ae5118a8195e8d9f8581723952294bb267f7cc79c27fdbd7cbf0c58538a94
[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" "4b6ae5118a8195e8d9f8581723952294bb267f7cc79c27fdbd7cbf0c58538a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b6ae5118a8195e8d9f8581723952294bb267f7cc79c27fdbd7cbf0c58538a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6ae5118a8195e8d9f8581723952294bb267f7cc79c27fdbd7cbf0c58538a94", kill_on_drop: false }`
[INFO] [stdout] 4b6ae5118a8195e8d9f8581723952294bb267f7cc79c27fdbd7cbf0c58538a94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d389c2a799583ca63b7bcec03aa16f76d452ba72533e412af5cc92481819d18
[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" "6d389c2a799583ca63b7bcec03aa16f76d452ba72533e412af5cc92481819d18", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking tokio v0.2.4
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking bee-pow-preview3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::convert`
[INFO] [stdout]    --> src/curl/mod.rs:111:16
[INFO] [stdout]     |
[INFO] [stdout] 111 |     use crate::convert::*;
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                unresolved import
[INFO] [stdout]     |                help: a similar path exists: `core::convert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NONCE_HASH_POS`
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::constants::{CURL_HASH_LENGTH, NONCE_HASH_POS, NONCE_TX_POS, TRANSACTION_LENGTH};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `from_tryte_string` in this scope
[INFO] [stdout]    --> src/curl/mod.rs:119:24
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let tx_trits = from_tryte_string(MAINNET_TRYTES_1);
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `string_from_trytes` in this scope
[INFO] [stdout]    --> src/curl/mod.rs:131:28
[INFO] [stdout]     |
[INFO] [stdout] 131 |         let tryte_string = string_from_trytes(&trytes_from_trits(&hash_trits));
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `trytes_from_trits` in this scope
[INFO] [stdout]    --> src/curl/mod.rs:131:48
[INFO] [stdout]     |
[INFO] [stdout] 131 |         let tryte_string = string_from_trytes(&trytes_from_trits(&hash_trits));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/pearldiver.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NONCE_HASH_POS`
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::constants::{CURL_HASH_LENGTH, NONCE_HASH_POS, NONCE_TX_POS, TRANSACTION_LENGTH};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bee-pow-preview3`
[INFO] [stdout] warning: unused variable: `search`
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let search = pdiver.search_async(&transaction);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_search`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/curl/mod.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(num_rounds: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cancelled`
[INFO] [stdout]   --> src/pearldiver.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Cancelled,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prestate`
[INFO] [stdout]   --> src/pearldiver.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     prestate: Curl64State,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pdiver`
[INFO] [stdout]   --> src/pearldiver.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pdiver: PearlDiver,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cancel`
[INFO] [stdout]    --> src/pearldiver.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn cancel(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6d389c2a799583ca63b7bcec03aa16f76d452ba72533e412af5cc92481819d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d389c2a799583ca63b7bcec03aa16f76d452ba72533e412af5cc92481819d18", kill_on_drop: false }`
[INFO] [stdout] 6d389c2a799583ca63b7bcec03aa16f76d452ba72533e412af5cc92481819d18