[INFO] cloning repository https://github.com/TimoFreiberg/cryptopals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimoFreiberg/cryptopals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimoFreiberg%2Fcryptopals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimoFreiberg%2Fcryptopals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f75245922addd7ec81424b5582c7ed18c50f1da8
[INFO] testing TimoFreiberg/cryptopals against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimoFreiberg%2Fcryptopals" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TimoFreiberg/cryptopals on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TimoFreiberg/cryptopals
[INFO] finished tweaking git repo https://github.com/TimoFreiberg/cryptopals
[INFO] tweaked toml for git repo https://github.com/TimoFreiberg/cryptopals written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/TimoFreiberg/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e055c9fedc3891192edf043a7c39bf55a912ef8b6586f898307cebf642e3029
[INFO] running `Command { std: "docker" "start" "-a" "1e055c9fedc3891192edf043a7c39bf55a912ef8b6586f898307cebf642e3029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e055c9fedc3891192edf043a7c39bf55a912ef8b6586f898307cebf642e3029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e055c9fedc3891192edf043a7c39bf55a912ef8b6586f898307cebf642e3029", kill_on_drop: false }`
[INFO] [stdout] 1e055c9fedc3891192edf043a7c39bf55a912ef8b6586f898307cebf642e3029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f57090724fa759cc69a9fe1eaf2dfdae43281b1dd5e30f0c42f627c644026879
[INFO] running `Command { std: "docker" "start" "-a" "f57090724fa759cc69a9fe1eaf2dfdae43281b1dd5e30f0c42f627c644026879", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `xor`
[INFO] [stdout]   --> src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn xor(&mut self, key: &[u8]) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_ascii`
[INFO] [stdout]   --> src/lib.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn to_ascii(&self) -> Result<&str, Utf8Error> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `char_score`
[INFO] [stdout]    --> src/lib.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn char_score(s: &str) -> Option<u32> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_cypher`
[INFO] [stdout]    --> src/lib.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn find_cypher(hex: &Hex) -> Option<(u8, u32, Hex)> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "f57090724fa759cc69a9fe1eaf2dfdae43281b1dd5e30f0c42f627c644026879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57090724fa759cc69a9fe1eaf2dfdae43281b1dd5e30f0c42f627c644026879", kill_on_drop: false }`
[INFO] [stdout] f57090724fa759cc69a9fe1eaf2dfdae43281b1dd5e30f0c42f627c644026879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd0c0c6a35485bda3e484ed9679743af233fb49ab037bbe4581ff202c564bb60
[INFO] running `Command { std: "docker" "start" "-a" "bd0c0c6a35485bda3e484ed9679743af233fb49ab037bbe4581ff202c564bb60", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: associated function is never used: `xor`
[INFO] [stdout]   --> src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn xor(&mut self, key: &[u8]) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_ascii`
[INFO] [stdout]   --> src/lib.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn to_ascii(&self) -> Result<&str, Utf8Error> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `char_score`
[INFO] [stdout]    --> src/lib.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn char_score(s: &str) -> Option<u32> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_cypher`
[INFO] [stdout]    --> src/lib.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn find_cypher(hex: &Hex) -> Option<(u8, u32, Hex)> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "bd0c0c6a35485bda3e484ed9679743af233fb49ab037bbe4581ff202c564bb60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0c0c6a35485bda3e484ed9679743af233fb49ab037bbe4581ff202c564bb60", kill_on_drop: false }`
[INFO] [stdout] bd0c0c6a35485bda3e484ed9679743af233fb49ab037bbe4581ff202c564bb60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6916f8e54e33c4ce6b26ab5b80e38109a6c621a2d6d622a87247b5b63ff770c0
[INFO] running `Command { std: "docker" "start" "-a" "6916f8e54e33c4ce6b26ab5b80e38109a6c621a2d6d622a87247b5b63ff770c0", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `xor`
[INFO] [stdout] running 5 tests
[INFO] [stderr]   --> src/lib.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn xor(&mut self, key: &[u8]) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_ascii`
[INFO] [stderr]   --> src/lib.rs:63:12
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn to_ascii(&self) -> Result<&str, Utf8Error> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `char_score`
[INFO] [stderr]    --> src/lib.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn char_score(s: &str) -> Option<u32> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_cypher`
[INFO] [stderr]    --> src/lib.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn find_cypher(hex: &Hex) -> Option<(u8, u32, Hex)> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cryptopals` (lib) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cryptopals-9648cc9f4337d885)
[INFO] [stdout] test tests::challenge_3_single_byte_xor_cipher ... ok
[INFO] [stdout] test tests::challenge_1_hex_to_base64 ... ok
[INFO] [stdout] test tests::challenge_2_xor ... ok
[INFO] [stdout] test tests::challenge_5_repeating_key_xor ... ok
[INFO] [stdout] test tests::challenge_4_find_single_xor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cryptopals-a1b3e63f562434bb)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cryptopals
[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] [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" "6916f8e54e33c4ce6b26ab5b80e38109a6c621a2d6d622a87247b5b63ff770c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6916f8e54e33c4ce6b26ab5b80e38109a6c621a2d6d622a87247b5b63ff770c0", kill_on_drop: false }`
[INFO] [stdout] 6916f8e54e33c4ce6b26ab5b80e38109a6c621a2d6d622a87247b5b63ff770c0