[INFO] cloning repository https://github.com/rotwatsb/cryptopals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rotwatsb/cryptopals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frotwatsb%2Fcryptopals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frotwatsb%2Fcryptopals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0a78614ae8e6210a5dab3a23057ec77f611b29c
[INFO] checking rotwatsb/cryptopals against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frotwatsb%2Fcryptopals" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rotwatsb/cryptopals on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rotwatsb/cryptopals
[INFO] finished tweaking git repo https://github.com/rotwatsb/cryptopals
[INFO] tweaked toml for git repo https://github.com/rotwatsb/cryptopals written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rotwatsb/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 0ccff117c6dd52d91b7db0885798e89c100bb519aa3f393286327af9a1f46eef
[INFO] running `Command { std: "docker" "start" "-a" "0ccff117c6dd52d91b7db0885798e89c100bb519aa3f393286327af9a1f46eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ccff117c6dd52d91b7db0885798e89c100bb519aa3f393286327af9a1f46eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ccff117c6dd52d91b7db0885798e89c100bb519aa3f393286327af9a1f46eef", kill_on_drop: false }`
[INFO] [stdout] 0ccff117c6dd52d91b7db0885798e89c100bb519aa3f393286327af9a1f46eef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e9a5960e6fb3fed1d92f3b6f2c95e50e1e8b467ea03c765f7532c1fe0db8a71
[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" "3e9a5960e6fb3fed1d92f3b6f2c95e50e1e8b467ea03c765f7532c1fe0db8a71", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking libc v0.2.79
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut boxed_dec: Box<Decryptor> =
[INFO] [stdout]    |                            ^^^^^^^^^ help: use `dyn`: `dyn Decryptor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut boxed_enc: Box<Encryptor> =
[INFO] [stdout]    |                            ^^^^^^^^^ help: use `dyn`: `dyn Encryptor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |             b'0'...b'9' => buf |= byte - b'0',
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             b'A'...b'F' => buf |= byte - b'A' + 10,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |             b'a'...b'f' => buf |= byte - b'a' + 10,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |             b'A'...b'Z' => buf = byte - b'A',
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |             b'a'...b'z' => buf = byte - b'a' + 26,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |             b'0'...b'9' => buf = byte - b'0' + 52,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/set1/prob3.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |             b'a'...b'z' => letter_freqs[(c - b'a') as usize] += 1,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/set1/prob3.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |             b'A'...b'Z' => letter_freqs[(c - b'A') as usize] += 1,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/set1/prob5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/set2/prob11.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u8>) -> Vec<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut boxed_dec: Box<Decryptor> =
[INFO] [stdout]    |                            ^^^^^^^^^ help: use `dyn`: `dyn Decryptor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut boxed_enc: Box<Encryptor> =
[INFO] [stdout]    |                            ^^^^^^^^^ help: use `dyn`: `dyn Encryptor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |             b'0'...b'9' => buf |= byte - b'0',
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             b'A'...b'F' => buf |= byte - b'A' + 10,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |             b'a'...b'f' => buf |= byte - b'a' + 10,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |             b'A'...b'Z' => buf = byte - b'A',
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |             b'a'...b'z' => buf = byte - b'a' + 26,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/set1/prob1.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |             b'0'...b'9' => buf = byte - b'0' + 52,
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/set1/prob3.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |             b'a'...b'z' => letter_freqs[(c - b'a') as usize] += 1,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/set1/prob3.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |             b'A'...b'Z' => letter_freqs[(c - b'A') as usize] += 1,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/set1/prob5.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/set2/prob11.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Vec<u8>) -> Vec<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/utils.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0 .. to_append {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `buf` is never read
[INFO] [stdout]   --> src/set1/prob1.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut buf: u8 = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `buf` is never read
[INFO] [stdout]   --> src/set1/prob1.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut buf: u8 = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `byte_mask` is never read
[INFO] [stdout]    --> src/set1/prob1.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut byte_mask: u8 = 255 << offset + (8 - bpc);
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `first` is never read
[INFO] [stdout]    --> src/set1/prob1.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut first: bool = true;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/set1/prob3.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (decoded_bytes, _, score) = decode_repeating_char_xor(&encoded_bytes);
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `score` is never read
[INFO] [stdout]   --> src/set1/prob3.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut score: i32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/set1/prob3.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     for i in 0 .. 5 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ham_dist` is never read
[INFO] [stdout]   --> src/set1/prob6.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut ham_dist: f64 = 0.0;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `keysize` is never read
[INFO] [stdout]   --> src/set1/prob6.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut keysize: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/set1/prob6.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0 .. keysize { transposed_blocks.push(Vec::new()); }
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `best_decode`
[INFO] [stdout]   --> src/set1/prob6.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_best_decode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_score`
[INFO] [stdout]   --> src/set1/prob6.rs:54:41
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/set2/prob12.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/set2/prob12.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `DEBUG`
[INFO] [stdout]  --> src/constants.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub static DEBUG: bool = false;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_decrypt`
[INFO] [stdout]   --> src/utils.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn ecb_decrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_encrypt`
[INFO] [stdout]   --> src/utils.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn ecb_encrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pad_to`
[INFO] [stdout]   --> src/utils.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn pad_to(to_pad: &mut Vec<u8>, block_size: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cbc_encrypt`
[INFO] [stdout]   --> src/utils.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn cbc_encrypt(bin: &mut Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cbc_decrypt`
[INFO] [stdout]   --> src/utils.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn cbc_decrypt(bin: &Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bin_from_b64file`
[INFO] [stdout]   --> src/utils.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn bin_from_b64file(f: &str) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_xor_slice`
[INFO] [stdout]    --> src/utils.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn set_xor_slice(v1: &[u8], v2: &[u8], into: &mut[u8]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `byte_repeats_exist`
[INFO] [stdout]    --> src/utils.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn byte_repeats_exist(data: &Vec<u8>, n: usize) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIN_MAP`
[INFO] [stdout]  --> src/set1/prob1.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const BIN_MAP: [char; 2] = ['0', '1'];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEX_MAP`
[INFO] [stdout]  --> src/set1/prob1.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / pub const HEX_MAP: [char; 16] =
[INFO] [stdout] 4 | |     ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
[INFO] [stdout] 5 | |      'e', 'f'];
[INFO] [stdout]   | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `B64_MAP`
[INFO] [stdout]   --> src/set1/prob1.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | / pub const B64_MAP: [char; 64] =
[INFO] [stdout] 8  | |     ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
[INFO] [stdout] 9  | |      'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
[INFO] [stdout] 10 | |      'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
[INFO] [stdout] 11 | |      'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3',
[INFO] [stdout] 12 | |      '4', '5', '6', '7', '8', '9', '+', '/'];
[INFO] [stdout]    | |_____________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob1`
[INFO] [stdout]   --> src/set1/prob1.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn prob1() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_hex_string`
[INFO] [stdout]   --> src/set1/prob1.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn from_hex_string(hex: &String) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_b64_string`
[INFO] [stdout]   --> src/set1/prob1.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn from_b64_string(b64_str: &String) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_base`
[INFO] [stdout]   --> src/set1/prob1.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn to_base(bin: &Vec<u8>, char_map: &[char]) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mylog2`
[INFO] [stdout]    --> src/set1/prob1.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn mylog2(n: u8) -> u8 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/set1/prob1.rs:142:4
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn test() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob2`
[INFO] [stdout]  --> src/set1/prob2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob2() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `xor_vecs`
[INFO] [stdout]   --> src/set1/prob2.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn xor_vecs(v1: &[u8], v2: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob3`
[INFO] [stdout]  --> src/set1/prob3.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn prob3() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_repeating_char_xor`
[INFO] [stdout]   --> src/set1/prob3.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn decode_repeating_char_xor(encoded_bytes: &Vec<u8>) -> (Vec<u8>, u8, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_vec`
[INFO] [stdout]   --> src/set1/prob3.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn set_vec(src: &Vec<u8>, dest: &mut Vec<u8>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `score_freqs`
[INFO] [stdout]   --> src/set1/prob3.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn score_freqs(freqs: &Vec<u32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calc_freqs`
[INFO] [stdout]   --> src/set1/prob3.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn calc_freqs(chars: &Vec<u8>, letter_freqs: &mut Vec<u32>) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeating_char_xor`
[INFO] [stdout]    --> src/set1/prob3.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn repeating_char_xor(v: &Vec<u8>, result: &mut Vec<u8>, c: &u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob4`
[INFO] [stdout]   --> src/set1/prob4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn prob4() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob5`
[INFO] [stdout]  --> src/set1/prob5.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob5() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeating_seq_xor`
[INFO] [stdout]   --> src/set1/prob5.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn repeating_seq_xor(to_encode: &[u8], result: &mut Vec<u8>, seq: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob6`
[INFO] [stdout]   --> src/set1/prob6.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn prob6() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hamming_distance`
[INFO] [stdout]   --> src/set1/prob6.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn hamming_distance(v1: &[u8], v2: &[u8]) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ham_d`
[INFO] [stdout]   --> src/set1/prob6.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn ham_d(a: u8, b: u8) -> f64 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob7`
[INFO] [stdout]  --> src/set1/prob7.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob7() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob8`
[INFO] [stdout]  --> src/set1/prob8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn prob8() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob9`
[INFO] [stdout]  --> src/set2/prob9.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob9() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob10`
[INFO] [stdout]  --> src/set2/prob10.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob10() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob11`
[INFO] [stdout]  --> src/set2/prob11.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob11() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_or_cbc_oracle`
[INFO] [stdout]  --> src/set2/prob11.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rand_encrypt_ecb_or_cbc`
[INFO] [stdout]   --> src/set2/prob11.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn rand_encrypt_ecb_or_cbc(bin: &mut Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob12`
[INFO] [stdout]  --> src/set2/prob12.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob12() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set1`
[INFO] [stdout]   --> src/main.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn set1() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set2`
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn set2() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/utils.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0 .. to_append {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     (*boxed_dec).decrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `buf` is never read
[INFO] [stdout]   --> src/set1/prob1.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut buf: u8 = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `buf` is never read
[INFO] [stdout]   --> src/set1/prob1.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut buf: u8 = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `byte_mask` is never read
[INFO] [stdout]    --> src/set1/prob1.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut byte_mask: u8 = 255 << offset + (8 - bpc);
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `first` is never read
[INFO] [stdout]    --> src/set1/prob1.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut first: bool = true;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/set1/prob3.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (decoded_bytes, _, score) = decode_repeating_char_xor(&encoded_bytes);
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `score` is never read
[INFO] [stdout]   --> src/set1/prob3.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut score: i32 = 0;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/set1/prob3.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     for i in 0 .. 5 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ham_dist` is never read
[INFO] [stdout]   --> src/set1/prob6.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut ham_dist: f64 = 0.0;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `keysize` is never read
[INFO] [stdout]   --> src/set1/prob6.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut keysize: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     (*boxed_enc).encrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/set1/prob6.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0 .. keysize { transposed_blocks.push(Vec::new()); }
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `best_decode`
[INFO] [stdout]   --> src/set1/prob6.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_best_decode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_score`
[INFO] [stdout]   --> src/set1/prob6.rs:54:41
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/set2/prob12.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 71 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/set2/prob12.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `DEBUG`
[INFO] [stdout]  --> src/constants.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub static DEBUG: bool = false;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_decrypt`
[INFO] [stdout]   --> src/utils.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn ecb_decrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_encrypt`
[INFO] [stdout]   --> src/utils.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn ecb_encrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pad_to`
[INFO] [stdout]   --> src/utils.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn pad_to(to_pad: &mut Vec<u8>, block_size: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cbc_encrypt`
[INFO] [stdout]   --> src/utils.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn cbc_encrypt(bin: &mut Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cbc_decrypt`
[INFO] [stdout]   --> src/utils.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn cbc_decrypt(bin: &Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bin_from_b64file`
[INFO] [stdout]   --> src/utils.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn bin_from_b64file(f: &str) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_xor_slice`
[INFO] [stdout]    --> src/utils.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn set_xor_slice(v1: &[u8], v2: &[u8], into: &mut[u8]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `byte_repeats_exist`
[INFO] [stdout]    --> src/utils.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn byte_repeats_exist(data: &Vec<u8>, n: usize) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIN_MAP`
[INFO] [stdout]  --> src/set1/prob1.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const BIN_MAP: [char; 2] = ['0', '1'];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HEX_MAP`
[INFO] [stdout]  --> src/set1/prob1.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / pub const HEX_MAP: [char; 16] =
[INFO] [stdout] 4 | |     ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
[INFO] [stdout] 5 | |      'e', 'f'];
[INFO] [stdout]   | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `B64_MAP`
[INFO] [stdout]   --> src/set1/prob1.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | / pub const B64_MAP: [char; 64] =
[INFO] [stdout] 8  | |     ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
[INFO] [stdout] 9  | |      'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
[INFO] [stdout] 10 | |      'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
[INFO] [stdout] 11 | |      'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3',
[INFO] [stdout] 12 | |      '4', '5', '6', '7', '8', '9', '+', '/'];
[INFO] [stdout]    | |_____________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob1`
[INFO] [stdout]   --> src/set1/prob1.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn prob1() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_hex_string`
[INFO] [stdout]   --> src/set1/prob1.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn from_hex_string(hex: &String) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_b64_string`
[INFO] [stdout]   --> src/set1/prob1.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn from_b64_string(b64_str: &String) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_base`
[INFO] [stdout]   --> src/set1/prob1.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn to_base(bin: &Vec<u8>, char_map: &[char]) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mylog2`
[INFO] [stdout]    --> src/set1/prob1.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub fn mylog2(n: u8) -> u8 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]    --> src/set1/prob1.rs:142:4
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn test() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob2`
[INFO] [stdout]  --> src/set1/prob2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob2() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `xor_vecs`
[INFO] [stdout]   --> src/set1/prob2.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn xor_vecs(v1: &[u8], v2: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob3`
[INFO] [stdout]  --> src/set1/prob3.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn prob3() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_repeating_char_xor`
[INFO] [stdout]   --> src/set1/prob3.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn decode_repeating_char_xor(encoded_bytes: &Vec<u8>) -> (Vec<u8>, u8, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_vec`
[INFO] [stdout]   --> src/set1/prob3.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn set_vec(src: &Vec<u8>, dest: &mut Vec<u8>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `score_freqs`
[INFO] [stdout]   --> src/set1/prob3.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn score_freqs(freqs: &Vec<u32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calc_freqs`
[INFO] [stdout]   --> src/set1/prob3.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn calc_freqs(chars: &Vec<u8>, letter_freqs: &mut Vec<u32>) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeating_char_xor`
[INFO] [stdout]    --> src/set1/prob3.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn repeating_char_xor(v: &Vec<u8>, result: &mut Vec<u8>, c: &u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob4`
[INFO] [stdout]   --> src/set1/prob4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn prob4() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob5`
[INFO] [stdout]  --> src/set1/prob5.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob5() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repeating_seq_xor`
[INFO] [stdout]   --> src/set1/prob5.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn repeating_seq_xor(to_encode: &[u8], result: &mut Vec<u8>, seq: &[u8]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob6`
[INFO] [stdout]   --> src/set1/prob6.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn prob6() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hamming_distance`
[INFO] [stdout]   --> src/set1/prob6.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn hamming_distance(v1: &[u8], v2: &[u8]) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ham_d`
[INFO] [stdout]   --> src/set1/prob6.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn ham_d(a: u8, b: u8) -> f64 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob7`
[INFO] [stdout]  --> src/set1/prob7.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob7() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob8`
[INFO] [stdout]  --> src/set1/prob8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn prob8() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob9`
[INFO] [stdout]  --> src/set2/prob9.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob9() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob10`
[INFO] [stdout]  --> src/set2/prob10.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob10() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob11`
[INFO] [stdout]  --> src/set2/prob11.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn prob11() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ecb_or_cbc_oracle`
[INFO] [stdout]  --> src/set2/prob11.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rand_encrypt_ecb_or_cbc`
[INFO] [stdout]   --> src/set2/prob11.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn rand_encrypt_ecb_or_cbc(bin: &mut Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prob12`
[INFO] [stdout]  --> src/set2/prob12.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn prob12() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set1`
[INFO] [stdout]   --> src/main.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn set1() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set2`
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn set2() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     (*boxed_dec).decrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     (*boxed_enc).encrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 71 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "3e9a5960e6fb3fed1d92f3b6f2c95e50e1e8b467ea03c765f7532c1fe0db8a71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9a5960e6fb3fed1d92f3b6f2c95e50e1e8b467ea03c765f7532c1fe0db8a71", kill_on_drop: false }`
[INFO] [stdout] 3e9a5960e6fb3fed1d92f3b6f2c95e50e1e8b467ea03c765f7532c1fe0db8a71