[INFO] cloning repository https://github.com/koonopek/crypto-pals-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koonopek/crypto-pals-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoonopek%2Fcrypto-pals-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoonopek%2Fcrypto-pals-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04f52464b52c708498eb237208d37259fd9ec9aa
[INFO] checking koonopek/crypto-pals-rust against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoonopek%2Fcrypto-pals-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/koonopek/crypto-pals-rust on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/koonopek/crypto-pals-rust
[INFO] finished tweaking git repo https://github.com/koonopek/crypto-pals-rust
[INFO] tweaked toml for git repo https://github.com/koonopek/crypto-pals-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/koonopek/crypto-pals-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80e57ad5d6f55a0b598b769d63e24c8541db0b8174fcdb5b962b98812419d405
[INFO] running `Command { std: "docker" "start" "-a" "80e57ad5d6f55a0b598b769d63e24c8541db0b8174fcdb5b962b98812419d405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80e57ad5d6f55a0b598b769d63e24c8541db0b8174fcdb5b962b98812419d405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e57ad5d6f55a0b598b769d63e24c8541db0b8174fcdb5b962b98812419d405", kill_on_drop: false }`
[INFO] [stdout] 80e57ad5d6f55a0b598b769d63e24c8541db0b8174fcdb5b962b98812419d405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd21bff1705822bb39961aa44b9e0ea0674f29e583dbadcf01265d2c4c7ece5
[INFO] running `Command { std: "docker" "start" "-a" "4cd21bff1705822bb39961aa44b9e0ea0674f29e583dbadcf01265d2c4c7ece5", kill_on_drop: false }`
[INFO] [stderr]     Checking crypto-pals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/bytes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `decode_hex` and `str_to_bytes`
[INFO] [stdout]  --> src/xor_cipher.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::bytes::{bytes_to_str, decode_hex, str_to_bytes, Bytes};
[INFO] [stdout]   |                                  ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enc_letter`
[INFO] [stdout]    --> src/xor_cipher.rs:122:15
[INFO] [stdout]     |
[INFO] [stdout] 122 |     for (key, enc_letter, n) in keys {
[INFO] [stdout]     |               ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enc_letter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/xor_cipher.rs:122:27
[INFO] [stdout]     |
[INFO] [stdout] 122 |     for (key, enc_letter, n) in keys {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Bytes` is never used
[INFO] [stdout]  --> src/bytes.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type Bytes = Vec<u8>;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE64_CHARS` is never used
[INFO] [stdout]  --> src/bytes.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const BASE64_CHARS: [u8; 63] = [
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_a` is never used
[INFO] [stdout]   --> src/bytes.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ASCII_a: u8 = 97;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_f` is never used
[INFO] [stdout]   --> src/bytes.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ASCII_f: u8 = 102;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_0` is never used
[INFO] [stdout]   --> src/bytes.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const ASCII_0: u8 = 48;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_9` is never used
[INFO] [stdout]   --> src/bytes.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const ASCII_9: u8 = 57;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_bytes` is never used
[INFO] [stdout]   --> src/bytes.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn str_to_bytes(str: String) -> Bytes {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bytes_to_str` is never used
[INFO] [stdout]   --> src/bytes.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn bytes_to_str(bytes: &Bytes) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bytes3_to_base64` is never used
[INFO] [stdout]   --> src/bytes.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn bytes3_to_base64(a: &u8, b: &u8, c: &u8) -> [u8; 4] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hex_to_base64` is never used
[INFO] [stdout]   --> src/bytes.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn hex_to_base64(hex: &Bytes) -> Bytes {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_hex` is never used
[INFO] [stdout]   --> src/bytes.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn decode_hex(bytes: Bytes) -> Bytes {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENG_FREQ_CHARS` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const ENG_FREQ_CHARS: [u8; 6] = [101, 116, 97, 105, 111, 110];
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENG_FREQ_CHARS_WITH_SCORE` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ENG_FREQ_CHARS_WITH_SCORE: [(u8, u8); 6] =
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xor` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn xor(a: &Bytes, b: &Bytes) -> Bytes {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hist_bytes` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn hist_bytes(bytes: &Bytes) -> HashMap<u8, u64> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_possible_keys` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn get_possible_keys(letters: Vec<u8>, hist_bytes: &HashMap<u8, u64>, n: u8) -> Vec<(u8, u8, u64)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_english_text` is never used
[INFO] [stdout]   --> src/xor_cipher.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn score_english_text(text: &Bytes) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrypt_xor_by_freq_letters` is never used
[INFO] [stdout]    --> src/xor_cipher.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn decrypt_xor_by_freq_letters(cipher_text: &Bytes) -> (String, i64) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]    --> src/xor_cipher.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 | fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_a` should have an upper case name
[INFO] [stdout]   --> src/bytes.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ASCII_a: u8 = 97;
[INFO] [stdout]    |       ^^^^^^^ help: convert the identifier to upper case: `ASCII_A`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_f` should have an upper case name
[INFO] [stdout]   --> src/bytes.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ASCII_f: u8 = 102;
[INFO] [stdout]    |       ^^^^^^^ help: convert the identifier to upper case (notice the capitalization): `ASCII_F`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enc_letter`
[INFO] [stdout]    --> src/xor_cipher.rs:122:15
[INFO] [stdout]     |
[INFO] [stdout] 122 |     for (key, enc_letter, n) in keys {
[INFO] [stdout]     |               ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enc_letter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/xor_cipher.rs:122:27
[INFO] [stdout]     |
[INFO] [stdout] 122 |     for (key, enc_letter, n) in keys {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_a` should have an upper case name
[INFO] [stdout]   --> src/bytes.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ASCII_a: u8 = 97;
[INFO] [stdout]    |       ^^^^^^^ help: convert the identifier to upper case: `ASCII_A`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ASCII_f` should have an upper case name
[INFO] [stdout]   --> src/bytes.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const ASCII_f: u8 = 102;
[INFO] [stdout]    |       ^^^^^^^ help: convert the identifier to upper case (notice the capitalization): `ASCII_F`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "4cd21bff1705822bb39961aa44b9e0ea0674f29e583dbadcf01265d2c4c7ece5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd21bff1705822bb39961aa44b9e0ea0674f29e583dbadcf01265d2c4c7ece5", kill_on_drop: false }`
[INFO] [stdout] 4cd21bff1705822bb39961aa44b9e0ea0674f29e583dbadcf01265d2c4c7ece5