[INFO] cloning repository https://github.com/jeremysalwen/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremysalwen/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 537d64c389ddefc1aed1c0ea1f2da48fac91424b
[INFO] testing jeremysalwen/adventofcode2021 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremysalwen%2Fadventofcode2021" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremysalwen/adventofcode2021 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-111/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jeremysalwen/adventofcode2021
[INFO] finished tweaking git repo https://github.com/jeremysalwen/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/jeremysalwen/adventofcode2021 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremysalwen/adventofcode2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b739a3cc7212ef0f13fda3916d7764c8a0af58483eaccd9afbba8b00d66282c6
[INFO] running `Command { std: "docker" "start" "-a" "b739a3cc7212ef0f13fda3916d7764c8a0af58483eaccd9afbba8b00d66282c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b739a3cc7212ef0f13fda3916d7764c8a0af58483eaccd9afbba8b00d66282c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b739a3cc7212ef0f13fda3916d7764c8a0af58483eaccd9afbba8b00d66282c6", kill_on_drop: false }`
[INFO] [stdout] b739a3cc7212ef0f13fda3916d7764c8a0af58483eaccd9afbba8b00d66282c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebd2f934e64069a0016b4feeebbf2fca4cf6a0265c35657bd6e5274e1d63297c
[INFO] running `Command { std: "docker" "start" "-a" "ebd2f934e64069a0016b4feeebbf2fca4cf6a0265c35657bd6e5274e1d63297c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde v1.0.131
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bimap v0.6.1
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling array2d v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling bitreader v0.3.4
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling counter v0.5.2
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling a2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]  --> src/twentyfour.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use z3::ast::Ast;
[INFO] [stdout]   |     ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |         vars: &HashMap<char, z3::ast::BV<'c>>,
[INFO] [stdout]    |                              ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         ctx: &'c z3::Context,
[INFO] [stdout]    |                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ) -> z3::ast::BV<'c> {
[INFO] [stdout]    |          ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Arg::Lit(v) => z3::ast::BV::from_i64(ctx, *v, BIT_WIDTH),
[INFO] [stdout]    |                            ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:69:49
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn apply<'a, 'c: 'a, I: Iterator<Item = &'a z3::ast::BV<'c>>>(
[INFO] [stdout]    |                                                 ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |         vars: &mut HashMap<char, z3::ast::BV<'c>>,
[INFO] [stdout]    |                                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         ctx: &'c z3::Context,
[INFO] [stdout]    |                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:75:20
[INFO] [stdout]    |
[INFO] [stdout] 75 |         optimize: &z3::Optimize,
[INFO] [stdout]    |                    ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:78:30
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let (c, val): (char, z3::ast::BV) = match self {
[INFO] [stdout]    |                              ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:84:43
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 optimize.assert(&den._eq(&z3::ast::BV::from_i64(ctx, 0, BIT_WIDTH)).not());
[INFO] [stdout]    |                                           ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:89:43
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 optimize.assert(&den._eq(&z3::ast::BV::from_i64(ctx, 0, BIT_WIDTH)).not());
[INFO] [stdout]    |                                           ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:95:22
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     &z3::ast::BV::from_i64(ctx, 1, BIT_WIDTH),
[INFO] [stdout]    |                      ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]   --> src/twentyfour.rs:96:22
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     &z3::ast::BV::from_i64(ctx, 0, BIT_WIDTH),
[INFO] [stdout]    |                      ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let var = z3::ast::BV::new_const(ctx, format!("{}{}", c, step), BIT_WIDTH);
[INFO] [stdout]     |                   ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let z3_conf = z3::Config::new();
[INFO] [stdout]     |                   ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let optimize = z3::Optimize::new(&ctx);
[INFO] [stdout]     |                    ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:119:18
[INFO] [stdout]     |
[INFO] [stdout] 119 |         .map(|i| z3::ast::BV::new_const(&ctx, format!("digit_{}", i), BIT_WIDTH))
[INFO] [stdout]     |                  ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:122:39
[INFO] [stdout]     |
[INFO] [stdout] 122 |         optimize.assert(&input.bvslt(&z3::ast::BV::from_i64(&ctx, 10, BIT_WIDTH)));
[INFO] [stdout]     |                                       ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:123:39
[INFO] [stdout]     |
[INFO] [stdout] 123 |         optimize.assert(&input.bvsge(&z3::ast::BV::from_i64(&ctx, 1, BIT_WIDTH)));
[INFO] [stdout]     |                                       ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:126:43
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let mut curr_values = HashMap::<char, z3::ast::BV>::new();
[INFO] [stdout]     |                                           ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:128:33
[INFO] [stdout]     |
[INFO] [stdout] 128 |         curr_values.insert(var, z3::ast::BV::from_i64(&ctx, 0, BIT_WIDTH));
[INFO] [stdout]     |                                 ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:139:19
[INFO] [stdout]     |
[INFO] [stdout] 139 |             ._eq(&z3::ast::BV::from_i64(&ctx, 0, BIT_WIDTH).into()),
[INFO] [stdout]     |                   ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 |         z3::SatResult::Unsat => println!("UNSAT"),
[INFO] [stdout]     |         ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         z3::SatResult::Unknown => println!("UNKNOWN!"),
[INFO] [stdout]     |         ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         z3::SatResult::Sat => {
[INFO] [stdout]     |         ^^ use of undeclared crate or module `z3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `z3`
[INFO] [stdout]    --> src/twentyfour.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let ctx = &z3::Context::new(&z3_conf);
[INFO] [stdout]     |                    ^^^^^^^ not found in `z3`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::task::Context;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::task::Context;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `counter::Counter`
[INFO] [stdout]  --> src/fourteen.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use counter::Counter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/fourteen.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/fourteen.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::iproduct`
[INFO] [stdout]  --> src/nine.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::iproduct;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/one.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `self`
[INFO] [stdout]  --> src/one.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array2d::Array2D`
[INFO] [stdout]  --> src/thirteen.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use array2d::Array2D;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/thirteen.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/three.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `self`
[INFO] [stdout]  --> src/three.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/two.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/two.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `self`
[INFO] [stdout]  --> src/two.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, BufRead};
[INFO] [stdout]   |               ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_log)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_pattern)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(array_zip)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(int_abs_diff)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_abs_diff` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(int_abs_diff)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for mutable reference `&mut I` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:79:48
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Op::Inp(Arg::Var(c)) => (*c, input.next().unwrap().clone()),
[INFO] [stdout]    |                                                ^^^^ method not found in `&mut I`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `eval` found for reference `&Arg` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:80:67
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Op::Add(Arg::Var(c), val) => (*c, var_as_int(c) + val.eval(vars, ctx)),
[INFO] [stdout]    |                                                                   ^^^^ method not found in `&Arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `eval` found for reference `&Arg` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:81:67
[INFO] [stdout]    |
[INFO] [stdout] 81 |             Op::Mul(Arg::Var(c), val) => (*c, var_as_int(c) * val.eval(vars, ctx)),
[INFO] [stdout]    |                                                                   ^^^^ method not found in `&Arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `eval` found for reference `&Arg` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:83:31
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 let den = val.eval(vars, ctx);
[INFO] [stdout]    |                               ^^^^ method not found in `&Arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `eval` found for reference `&Arg` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:88:31
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let den = val.eval(vars, ctx);
[INFO] [stdout]    |                               ^^^^ method not found in `&Arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `eval` found for reference `&Arg` in the current scope
[INFO] [stdout]   --> src/twentyfour.rs:94:40
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 var_as_int(c)._eq(&val.eval(vars, ctx)).ite(
[INFO] [stdout]    |                                        ^^^^ method not found in `&Arg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]  --> src/twentyfour.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::{Mul, Not};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Not`
[INFO] [stdout]  --> src/twentyfour.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::{Mul, Not};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 37 previous errors; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `a2021` due to 38 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ebd2f934e64069a0016b4feeebbf2fca4cf6a0265c35657bd6e5274e1d63297c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd2f934e64069a0016b4feeebbf2fca4cf6a0265c35657bd6e5274e1d63297c", kill_on_drop: false }`
[INFO] [stdout] ebd2f934e64069a0016b4feeebbf2fca4cf6a0265c35657bd6e5274e1d63297c