[INFO] updating cached repository bantic/cryptopals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bantic/cryptopals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bantic/cryptopals" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/bantic/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/bantic/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bantic/cryptopals" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/bantic/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/bantic/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0958d66e32c4ca18ace0e3c208066514b769e6c
[INFO] sha for GitHub repo bantic/cryptopals: f0958d66e32c4ca18ace0e3c208066514b769e6c
[INFO] validating manifest of bantic/cryptopals on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bantic/cryptopals on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bantic/cryptopals
[INFO] finished frobbing bantic/cryptopals
[INFO] frobbed toml for bantic/cryptopals written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/bantic/cryptopals/Cargo.toml
[INFO] started frobbing bantic/cryptopals
[INFO] finished frobbing bantic/cryptopals
[INFO] frobbed toml for bantic/cryptopals written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/bantic/cryptopals/Cargo.toml
[INFO] crate bantic/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bantic/cryptopals against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/bantic/cryptopals:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1270e89df2734e93be8e4fbfe931a9c56b48041e0eb882906672f2b9ddddba75
[INFO] running `"docker" "start" "-a" "1270e89df2734e93be8e4fbfe931a9c56b48041e0eb882906672f2b9ddddba75"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/crypto/xor.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     if (score > best_score) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/crypto/xor.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     if (score > best_score) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `xor`
[INFO] [stderr]  --> src/lib.rs:6:38
[INFO] [stderr]   |
[INFO] [stderr] 6 |   use crate::crypto::{hex_to_base64, xor, xor_hex};
[INFO] [stderr]   |                                      ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `letter_counts` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/crypto/xor.rs:76:7
[INFO] [stderr]    |
[INFO] [stderr] 75 |       let v = letter_counts.get(&c).unwrap();
[INFO] [stderr]    |               ------------- immutable borrow occurs here
[INFO] [stderr] 76 |       letter_counts.insert(c, v + 1);
[INFO] [stderr]    |       ^^^^^^^^^^^^^           - immutable borrow later used here
[INFO] [stderr]    |       |
[INFO] [stderr]    |       mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_base64`
[INFO] [stderr]  --> src/crypto/hex_to_base64.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn hex_to_base64(hex: &str) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pad_bits`
[INFO] [stderr]   --> src/crypto/hex_to_base64.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn pad_bits(bits: Vec<bool>) -> Vec<bool> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bits_to_base64`
[INFO] [stderr]   --> src/crypto/hex_to_base64.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bits_to_base64(bits: Vec<bool>) -> char {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor`
[INFO] [stderr]  --> src/crypto/xor.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn xor(hexed_input: &str, c: char) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode_fixed_xor`
[INFO] [stderr]   --> src/crypto/xor.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn decode_fixed_xor(hexed_input: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_char_freq`
[INFO] [stderr]   --> src/crypto/xor.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn get_char_freq(c: char) -> f32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `freq_score`
[INFO] [stderr]   --> src/crypto/xor.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn freq_score(str: &str) -> f32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor_hex`
[INFO] [stderr]  --> src/crypto/xor_hex.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn xor_hex(a: &str, b: &str) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_vecu8`
[INFO] [stderr]  --> src/crypto/mod.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   pub fn hex_to_vecu8(hex: &str) -> Vec<u8> {
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_u8`
[INFO] [stderr]   --> src/crypto/mod.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   fn hex_to_u8(hex: &str) -> u8 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_decimal`
[INFO] [stderr]   --> src/crypto/mod.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   pub fn hex_to_decimal(hex: &str) -> i32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decimal_to_bits`
[INFO] [stderr]   --> src/crypto/mod.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn decimal_to_bits(d: i32) -> Vec<bool> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_bits`
[INFO] [stderr]   --> src/crypto/mod.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   pub fn hex_to_bits(hex: &str) -> Vec<bool> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bits_to_hex`
[INFO] [stderr]   --> src/crypto/mod.rs:53:3
[INFO] [stderr]    |
[INFO] [stderr] 53 |   pub fn bits_to_hex(bits: Vec<bool>) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bits_to_decimal`
[INFO] [stderr]   --> src/crypto/mod.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   pub fn bits_to_decimal(bits: Vec<bool>) -> i32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `letter_counts` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/crypto/xor.rs:76:7
[INFO] [stderr]    |
[INFO] [stderr] 75 |       let v = letter_counts.get(&c).unwrap();
[INFO] [stderr]    |               ------------- immutable borrow occurs here
[INFO] [stderr] 76 |       letter_counts.insert(c, v + 1);
[INFO] [stderr]    |       ^^^^^^^^^^^^^           - immutable borrow later used here
[INFO] [stderr]    |       |
[INFO] [stderr]    |       mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "1270e89df2734e93be8e4fbfe931a9c56b48041e0eb882906672f2b9ddddba75"`
[INFO] running `"docker" "rm" "-f" "1270e89df2734e93be8e4fbfe931a9c56b48041e0eb882906672f2b9ddddba75"`
[INFO] [stdout] 1270e89df2734e93be8e4fbfe931a9c56b48041e0eb882906672f2b9ddddba75