[INFO] cloning repository https://github.com/ethowitz/cryptopals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethowitz/cryptopals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethowitz%2Fcryptopals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethowitz%2Fcryptopals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0676e4942c044fb40fb3ed2e6a6f74f3ee54dbf9
[INFO] checking ethowitz/cryptopals against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethowitz%2Fcryptopals" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethowitz/cryptopals on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ethowitz/cryptopals
[INFO] finished tweaking git repo https://github.com/ethowitz/cryptopals
[INFO] tweaked toml for git repo https://github.com/ethowitz/cryptopals written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ethowitz/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af0a8c75d25241f47dffe44deb8bfdcc630a9de5fddb2937fe8b684a9c04ac02
[INFO] running `Command { std: "docker" "start" "-a" "af0a8c75d25241f47dffe44deb8bfdcc630a9de5fddb2937fe8b684a9c04ac02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af0a8c75d25241f47dffe44deb8bfdcc630a9de5fddb2937fe8b684a9c04ac02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0a8c75d25241f47dffe44deb8bfdcc630a9de5fddb2937fe8b684a9c04ac02", kill_on_drop: false }`
[INFO] [stdout] af0a8c75d25241f47dffe44deb8bfdcc630a9de5fddb2937fe8b684a9c04ac02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6beaa2280fc99a174d4a590f1c3a8a37cf792a254f879b1fa33e72759221c7
[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" "ce6beaa2280fc99a174d4a590f1c3a8a37cf792a254f879b1fa33e72759221c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/set1/challenge2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Hex`
[INFO] [stdout]  --> src/set1/challenge2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::challenge1::Hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/set1/challenge3.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Hex`
[INFO] [stdout]  --> src/set1/challenge3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::challenge1::Hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Hex`
[INFO] [stdout]  --> src/set1/challenge5.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::challenge1::Hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/set1/challenge6.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/set1/challenge6.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Base64`
[INFO] [stdout]  --> src/set1/challenge6.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::challenge1::Base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/set1/challenge7.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/set1/challenge7.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Base64`
[INFO] [stdout]  --> src/set1/challenge7.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::challenge1::Base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/set1/challenge8.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/set1/challenge8.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `self`
[INFO] [stdout]  --> src/set1/challenge8.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::challenge1::Hex`
[INFO] [stdout]  --> src/set1/challenge8.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::challenge1::Hex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bytes`
[INFO] [stdout]  --> src/set1/challenge1.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn to_bytes(&self) -> Vec<u8> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/set1/challenge1.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn from_bytes(bytes: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_bytes`
[INFO] [stdout]   --> src/set1/challenge1.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn to_bytes(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `xor`
[INFO] [stdout]  --> src/set1/challenge2.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn xor(buffer1: &[u8], buffer2: &[u8]) -> Result<Vec<u8>, &'static str> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_char_distribution`
[INFO] [stdout]  --> src/set1/challenge3.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_char_distribution(buffer: &[u8]) -> HashMap<char, f64> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_score`
[INFO] [stdout]   --> src/set1/challenge3.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn get_score(buffer: &[u8]) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_key`
[INFO] [stdout]   --> src/set1/challenge3.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn find_key(ciphertext: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_plaintext`
[INFO] [stdout]   --> src/set1/challenge3.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn find_plaintext(ciphertext: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_plaintext`
[INFO] [stdout]   --> src/set1/challenge4.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn find_plaintext<P: AsRef<Path>>(filename: P) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeating_key_xor`
[INFO] [stdout]  --> src/set1/challenge5.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn repeating_key_xor(key: &[u8], buffer: &[u8]) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_hamming_distance`
[INFO] [stdout]  --> src/set1/challenge6.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn get_hamming_distance(buffer1: &[u8], buffer2: &[u8]) -> Result<usize, &'static str> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_key`
[INFO] [stdout]   --> src/set1/challenge6.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn find_key(buffer: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_plaintext`
[INFO] [stdout]   --> src/set1/challenge6.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn find_plaintext(buffer: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `aes_decrypt`
[INFO] [stdout]  --> src/set1/challenge7.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn aes_decrypt(key: &[u8], ciphertext: &[u8]) -> Vec<u8> {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `detect_aes_ecb`
[INFO] [stdout]  --> src/set1/challenge8.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn detect_aes_ecb(buffers: &[&[u8]]) -> Option<Vec<u8>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "ce6beaa2280fc99a174d4a590f1c3a8a37cf792a254f879b1fa33e72759221c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6beaa2280fc99a174d4a590f1c3a8a37cf792a254f879b1fa33e72759221c7", kill_on_drop: false }`
[INFO] [stdout] ce6beaa2280fc99a174d4a590f1c3a8a37cf792a254f879b1fa33e72759221c7