[INFO] cloning repository https://github.com/kjsuarez/cryptopals_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kjsuarez/cryptopals_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkjsuarez%2Fcryptopals_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkjsuarez%2Fcryptopals_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a1e24556ae229879d022f78ed3c10cdee6447b3
[INFO] testing kjsuarez/cryptopals_exercises against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkjsuarez%2Fcryptopals_exercises" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kjsuarez/cryptopals_exercises
[INFO] finished tweaking git repo https://github.com/kjsuarez/cryptopals_exercises
[INFO] tweaked toml for git repo https://github.com/kjsuarez/cryptopals_exercises written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kjsuarez/cryptopals_exercises on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kjsuarez/cryptopals_exercises 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f293c9d2c0d519abd6fe89d5f2585fa472dd9318d7204b480a2bd4cfe9250d4
[INFO] running `Command { std: "docker" "start" "-a" "4f293c9d2c0d519abd6fe89d5f2585fa472dd9318d7204b480a2bd4cfe9250d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f293c9d2c0d519abd6fe89d5f2585fa472dd9318d7204b480a2bd4cfe9250d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f293c9d2c0d519abd6fe89d5f2585fa472dd9318d7204b480a2bd4cfe9250d4", kill_on_drop: false }`
[INFO] [stdout] 4f293c9d2c0d519abd6fe89d5f2585fa472dd9318d7204b480a2bd4cfe9250d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 651221cfdc8e032399ce6f3e3181190229f75280f74c44230d8d1ad886b424bf
[INFO] running `Command { std: "docker" "start" "-a" "651221cfdc8e032399ce6f3e3181190229f75280f74c44230d8d1ad886b424bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling cc v1.1.13
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling cryptopals_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/set_3/problem_17.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::black_box`
[INFO] [stdout]  --> src/set_3/problem_17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hint::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> src/set_3/problem_17.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{black_box, encoder, pkcs7};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/set_3/problem_17.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |             for i in (0..255) {
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             for i in (0..255) {
[INFO] [stdout] 73 +             for i in 0..255  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/set_3/problem_17.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |             for i in (0..255) {
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -             for i in (0..255) {
[INFO] [stdout] 92 +             for i in 0..255  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keystream_len`
[INFO] [stdout]   --> src/set_3/problem_17.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let keystream_len = self.keystream.len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keystream_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]    --> src/set_3/problem_17.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let x: usize;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |             x = 1;
[INFO] [stdout]     |             ----- `x` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 169 |             x = 0;
[INFO] [stdout]     |             ^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |             x = 1;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `picked` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:249:22
[INFO] [stdout]     |
[INFO] [stdout] 249 |     let mut picked = choices[rng.gen_range(0..choices.len()-1)];
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 250 |
[INFO] [stdout] 251 |     picked = "MDAwMDA0QnVybmluZyAnZW0sIGlmIHlvdSBhaW4ndCBxdWljayBhbmQgbmltYmxl";
[INFO] [stdout]     |     --------------------------------------------------------------------------- `picked` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.04s
[INFO] running `Command { std: "docker" "inspect" "651221cfdc8e032399ce6f3e3181190229f75280f74c44230d8d1ad886b424bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "651221cfdc8e032399ce6f3e3181190229f75280f74c44230d8d1ad886b424bf", kill_on_drop: false }`
[INFO] [stdout] 651221cfdc8e032399ce6f3e3181190229f75280f74c44230d8d1ad886b424bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e8f837c89a9b35e98bdf7418cfe15b64aa84ab8d01372bd0225f7ae5aeb01d3
[INFO] running `Command { std: "docker" "start" "-a" "1e8f837c89a9b35e98bdf7418cfe15b64aa84ab8d01372bd0225f7ae5aeb01d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cryptopals_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/set_3/problem_17.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hint::black_box`
[INFO] [stdout]  --> src/set_3/problem_17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hint::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> src/set_3/problem_17.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{black_box, encoder, pkcs7};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/set_3/problem_17.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |             for i in (0..255) {
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             for i in (0..255) {
[INFO] [stdout] 73 +             for i in 0..255  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/set_3/problem_17.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |             for i in (0..255) {
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -             for i in (0..255) {
[INFO] [stdout] 92 +             for i in 0..255  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keystream_len`
[INFO] [stdout]   --> src/set_3/problem_17.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let keystream_len = self.keystream.len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keystream_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]    --> src/set_3/problem_17.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         let x: usize;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |             x = 1;
[INFO] [stdout]     |             ----- `x` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 169 |             x = 0;
[INFO] [stdout]     |             ^^^^^ this value is reassigned later and never used
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 166 |             x = 1;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `picked` is never read
[INFO] [stdout]    --> src/set_3/problem_17.rs:249:22
[INFO] [stdout]     |
[INFO] [stdout] 249 |     let mut picked = choices[rng.gen_range(0..choices.len()-1)];
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 250 |
[INFO] [stdout] 251 |     picked = "MDAwMDA0QnVybmluZyAnZW0sIGlmIHlvdSBhaW4ndCBxdWljayBhbmQgbmltYmxl";
[INFO] [stdout]     |     --------------------------------------------------------------------------- `picked` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "1e8f837c89a9b35e98bdf7418cfe15b64aa84ab8d01372bd0225f7ae5aeb01d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8f837c89a9b35e98bdf7418cfe15b64aa84ab8d01372bd0225f7ae5aeb01d3", kill_on_drop: false }`
[INFO] [stdout] 1e8f837c89a9b35e98bdf7418cfe15b64aa84ab8d01372bd0225f7ae5aeb01d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87d419cee7a1723b97f4afb58448faae78a257da14b3699e566941414af3be7a
[INFO] running `Command { std: "docker" "start" "-a" "87d419cee7a1723b97f4afb58448faae78a257da14b3699e566941414af3be7a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/set_3/problem_17.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hint::black_box`
[INFO] [stderr]  --> src/set_3/problem_17.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::hint::black_box;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `black_box`
[INFO] [stderr]  --> src/set_3/problem_17.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::{black_box, encoder, pkcs7};
[INFO] [stderr]   |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/set_3/problem_17.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             for i in (0..255) {
[INFO] [stderr]    |                      ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 73 -             for i in (0..255) {
[INFO] [stderr] 73 +             for i in 0..255  {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/set_3/problem_17.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |             for i in (0..255) {
[INFO] [stderr]    |                      ^      ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 92 -             for i in (0..255) {
[INFO] [stderr] 92 +             for i in 0..255  {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keystream_len`
[INFO] [stderr]   --> src/set_3/problem_17.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let keystream_len = self.keystream.len();
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keystream_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]    --> src/set_3/problem_17.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |         let x: usize;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/set_3/problem_17.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |             x = 1;
[INFO] [stderr]     |             ----- `x` is overwritten here before the previous value is read
[INFO] [stderr] ...
[INFO] [stderr] 169 |             x = 0;
[INFO] [stderr]     |             ^^^^^ this value is reassigned later and never used
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]    --> src/set_3/problem_17.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |             x = 1;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `picked` is never read
[INFO] [stderr]    --> src/set_3/problem_17.rs:249:22
[INFO] [stderr]     |
[INFO] [stderr] 249 |     let mut picked = choices[rng.gen_range(0..choices.len()-1)];
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stderr] 250 |
[INFO] [stderr] 251 |     picked = "MDAwMDA0QnVybmluZyAnZW0sIGlmIHlvdSBhaW4ndCBxdWljayBhbmQgbmltYmxl";
[INFO] [stderr]     |     --------------------------------------------------------------------------- `picked` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: `cryptopals_exercises` (bin "cryptopals_exercises" test) generated 10 warnings (run `cargo fix --bin "cryptopals_exercises" -p cryptopals_exercises --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cryptopals_exercises-2acdc1c53a3220fe)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "87d419cee7a1723b97f4afb58448faae78a257da14b3699e566941414af3be7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87d419cee7a1723b97f4afb58448faae78a257da14b3699e566941414af3be7a", kill_on_drop: false }`
[INFO] [stdout] 87d419cee7a1723b97f4afb58448faae78a257da14b3699e566941414af3be7a