[INFO] cloning repository https://github.com/keriwarr/cryptopals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keriwarr/cryptopals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeriwarr%2Fcryptopals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeriwarr%2Fcryptopals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02b47662db7489b7ae65c74af37ca4ea2af46c6e
[INFO] testing keriwarr/cryptopals against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeriwarr%2Fcryptopals" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keriwarr/cryptopals on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keriwarr/cryptopals
[INFO] finished tweaking git repo https://github.com/keriwarr/cryptopals
[INFO] tweaked toml for git repo https://github.com/keriwarr/cryptopals written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/keriwarr/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 169fe69b310ba41661f1e31279ad94e2c29b267078fe9b7e9bb3f6575bfce8f4
[INFO] running `Command { std: "docker" "start" "-a" "169fe69b310ba41661f1e31279ad94e2c29b267078fe9b7e9bb3f6575bfce8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "169fe69b310ba41661f1e31279ad94e2c29b267078fe9b7e9bb3f6575bfce8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169fe69b310ba41661f1e31279ad94e2c29b267078fe9b7e9bb3f6575bfce8f4", kill_on_drop: false }`
[INFO] [stdout] 169fe69b310ba41661f1e31279ad94e2c29b267078fe9b7e9bb3f6575bfce8f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af17280be88e5028725d68732087b739a0d7ba8c69f2e053c81eb848eb7e0cb9
[INFO] running `Command { std: "docker" "start" "-a" "af17280be88e5028725d68732087b739a0d7ba8c69f2e053c81eb848eb7e0cb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cryptopals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/byte_stream.rs:654:5
[INFO] [stdout]     |
[INFO] [stdout] 654 |     (if c >= 'A' && c <= 'Z' {
[INFO] [stdout]     |     ^
[INFO] [stdout] ...
[INFO] [stdout] 666 |     })
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 654 ~     if c >= 'A' && c <= 'Z' {
[INFO] [stdout] 655 |         Some(c as u8 - 65)
[INFO] [stdout] 656 |     } else if c >= 'a' && c <= 'z' {
[INFO] [stdout] 657 |         Some(c as u8 - 71)
[INFO] [stdout] 658 |     } else if c >= '0' && c <= '9' {
[INFO] [stdout] 659 |         Some(c as u8 + 4)
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/byte_stream.rs:300:13
[INFO] [stdout]     |
[INFO] [stdout] 300 |         let mut s = String::from_utf8_lossy(&self.data).into_owned();
[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: field is never read: `string`
[INFO] [stdout]   --> src/byte_stream.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     string: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `FromHexError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/byte_stream.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]   --> src/byte_stream.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     string: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `FromB64Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/byte_stream.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]   --> src/byte_stream.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     string: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `FromAsciiError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/byte_stream.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(str_escape)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `str_escape` has been stable since 1.34.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(str_escape)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cryptopals` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "af17280be88e5028725d68732087b739a0d7ba8c69f2e053c81eb848eb7e0cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af17280be88e5028725d68732087b739a0d7ba8c69f2e053c81eb848eb7e0cb9", kill_on_drop: false }`
[INFO] [stdout] af17280be88e5028725d68732087b739a0d7ba8c69f2e053c81eb848eb7e0cb9