[INFO] cloning repository https://github.com/pba5-remote-group-1/aes-modes-activity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pba5-remote-group-1/aes-modes-activity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpba5-remote-group-1%2Faes-modes-activity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpba5-remote-group-1%2Faes-modes-activity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] edb3e9605d458381f81f72d0b8021922b7ac37f2
[INFO] checking pba5-remote-group-1/aes-modes-activity against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpba5-remote-group-1%2Faes-modes-activity" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pba5-remote-group-1/aes-modes-activity
[INFO] finished tweaking git repo https://github.com/pba5-remote-group-1/aes-modes-activity
[INFO] tweaked toml for git repo https://github.com/pba5-remote-group-1/aes-modes-activity written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pba5-remote-group-1/aes-modes-activity on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pba5-remote-group-1/aes-modes-activity 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9018770f1096d546803598d73de7f9aab1967e8c72165d7c27d7c275fb508f8c
[INFO] running `Command { std: "docker" "start" "-a" "9018770f1096d546803598d73de7f9aab1967e8c72165d7c27d7c275fb508f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9018770f1096d546803598d73de7f9aab1967e8c72165d7c27d7c275fb508f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9018770f1096d546803598d73de7f9aab1967e8c72165d7c27d7c275fb508f8c", kill_on_drop: false }`
[INFO] [stdout] 9018770f1096d546803598d73de7f9aab1967e8c72165d7c27d7c275fb508f8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c61a0861a5ca2ef127c7676441baf0a15a9960d7a3a649cdff84b273a598771
[INFO] running `Command { std: "docker" "start" "-a" "9c61a0861a5ca2ef127c7676441baf0a15a9960d7a3a649cdff84b273a598771", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking aes-modes-activity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BlockCipher`
[INFO] [stdout]   --> src/main.rs:15:43
[INFO] [stdout]    |
[INFO] [stdout] 15 |     cipher::{generic_array::GenericArray, BlockCipher, BlockDecrypt, BlockEncrypt, KeyInit},
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]   --> src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn un_group(blocks: Vec<[u8; BLOCK_SIZE]>) -> Vec<u8> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/main.rs:102:11
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn un_pad(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]     |           ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:118:38
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:134:16
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:134:37
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:140:38
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:160:16
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:160:37
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:165:16
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:165:38
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_SIZE` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const BLOCK_SIZE: usize = 16;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aes_encrypt` is never used
[INFO] [stdout]   --> src/main.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn aes_encrypt(data: [u8; BLOCK_SIZE], key: &[u8; BLOCK_SIZE]) -> [u8; BLOCK_SIZE] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aes_decrypt` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn aes_decrypt(data: [u8; BLOCK_SIZE], key: &[u8; BLOCK_SIZE]) -> [u8; BLOCK_SIZE] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pad` is never used
[INFO] [stdout]   --> src/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn pad(mut data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group` is never used
[INFO] [stdout]   --> src/main.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn group(data: Vec<u8>) -> Vec<[u8; BLOCK_SIZE]> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `un_group` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn un_group(blocks: Vec<[u8; BLOCK_SIZE]>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `un_pad` is never used
[INFO] [stdout]    --> src/main.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn un_pad(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ecb_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ecb_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cbc_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cbc_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctr_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctr_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BlockCipher`
[INFO] [stdout]   --> src/main.rs:15:43
[INFO] [stdout]    |
[INFO] [stdout] 15 |     cipher::{generic_array::GenericArray, BlockCipher, BlockDecrypt, BlockEncrypt, KeyInit},
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]   --> src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn un_group(blocks: Vec<[u8; BLOCK_SIZE]>) -> Vec<u8> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/main.rs:102:11
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn un_pad(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]     |           ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:118:38
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:134:16
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:134:37
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:140:38
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plain_text`
[INFO] [stdout]    --> src/main.rs:160:16
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plain_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:160:37
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cipher_text`
[INFO] [stdout]    --> src/main.rs:165:16
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cipher_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:165:38
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_SIZE` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const BLOCK_SIZE: usize = 16;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aes_encrypt` is never used
[INFO] [stdout]   --> src/main.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn aes_encrypt(data: [u8; BLOCK_SIZE], key: &[u8; BLOCK_SIZE]) -> [u8; BLOCK_SIZE] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aes_decrypt` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn aes_decrypt(data: [u8; BLOCK_SIZE], key: &[u8; BLOCK_SIZE]) -> [u8; BLOCK_SIZE] {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pad` is never used
[INFO] [stdout]   --> src/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn pad(mut data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group` is never used
[INFO] [stdout]   --> src/main.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn group(data: Vec<u8>) -> Vec<[u8; BLOCK_SIZE]> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `un_group` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn un_group(blocks: Vec<[u8; BLOCK_SIZE]>) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `un_pad` is never used
[INFO] [stdout]    --> src/main.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn un_pad(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ecb_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn ecb_encrypt(plain_text: Vec<u8>, key: [u8; 16]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ecb_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn ecb_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cbc_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn cbc_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cbc_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn cbc_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctr_encrypt` is never used
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn ctr_encrypt(plain_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctr_decrypt` is never used
[INFO] [stdout]    --> src/main.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn ctr_decrypt(cipher_text: Vec<u8>, key: [u8; BLOCK_SIZE]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `Command { std: "docker" "inspect" "9c61a0861a5ca2ef127c7676441baf0a15a9960d7a3a649cdff84b273a598771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c61a0861a5ca2ef127c7676441baf0a15a9960d7a3a649cdff84b273a598771", kill_on_drop: false }`
[INFO] [stdout] 9c61a0861a5ca2ef127c7676441baf0a15a9960d7a3a649cdff84b273a598771