[INFO] cloning repository https://github.com/awoimbee-42/computor-v1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awoimbee-42/computor-v1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee-42%2Fcomputor-v1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee-42%2Fcomputor-v1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb2aae71922c2c09afe05eb7fff0bc11628a75d8
[INFO] checking awoimbee-42/computor-v1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee-42%2Fcomputor-v1" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/awoimbee-42/computor-v1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/awoimbee-42/computor-v1
[INFO] finished tweaking git repo https://github.com/awoimbee-42/computor-v1
[INFO] tweaked toml for git repo https://github.com/awoimbee-42/computor-v1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/awoimbee-42/computor-v1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs-next v1.0.1
[INFO] [stderr]   Downloaded rustyline v6.2.0
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f3507698faa2f2da9dcc7ae1e604d13a35afaecfd077220b6b80a3d62bd4eff
[INFO] running `Command { std: "docker" "start" "-a" "2f3507698faa2f2da9dcc7ae1e604d13a35afaecfd077220b6b80a3d62bd4eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f3507698faa2f2da9dcc7ae1e604d13a35afaecfd077220b6b80a3d62bd4eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3507698faa2f2da9dcc7ae1e604d13a35afaecfd077220b6b80a3d62bd4eff", kill_on_drop: false }`
[INFO] [stdout] 2f3507698faa2f2da9dcc7ae1e604d13a35afaecfd077220b6b80a3d62bd4eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ffe6256f13b34c5e6fbe8540e8ef808bcd32193ec1b3b63ec0904b5c6ee9bb
[INFO] running `Command { std: "docker" "start" "-a" "47ffe6256f13b34c5e6fbe8540e8ef808bcd32193ec1b3b63ec0904b5c6ee9bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]     Checking computor-v1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:20
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Var` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:25
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Var` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/parsing/lexer.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/float.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/real.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 8 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Num;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Num` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Value` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cmp` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `cmp` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout] 5 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops`
[INFO] [stdout]  --> src/types/value/var.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:20
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Var` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:25
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Var` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/float.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/real.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 8 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Num;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Num` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Value` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cmp` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `cmp` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout] 5 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops`
[INFO] [stdout]  --> src/types/value/var.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:203:27
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn try_mul(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:209:27
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn try_mul(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:215:27
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn try_mul(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:234:27
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn try_div(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn try_div(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:246:27
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn try_div(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:265:27
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn try_pow(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:271:27
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn try_pow(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:277:27
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn try_pow(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:203:27
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn try_mul(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:209:27
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn try_mul(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:215:27
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn try_mul(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:234:27
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn try_div(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn try_div(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:246:27
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn try_div(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:265:27
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn try_pow(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:271:27
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn try_pow(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:277:27
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn try_pow(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vars` and `funs` are never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Computor {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 13 |     vars: HashMap<String, Num>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     funs: HashMap<String, Expr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_TXT` is never used
[INFO] [stdout]   --> src/parsing/lexer.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 |     const TEST_TXT: &str = "this is a test string";
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `simplify` is never used
[INFO] [stdout]   --> src/types/value/var.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Var {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn simplify(self) -> Value {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vars` and `funs` are never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Computor {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 13 |     vars: HashMap<String, Num>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     funs: HashMap<String, Expr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `simplify` is never used
[INFO] [stdout]   --> src/types/value/var.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Var {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn simplify(self) -> Value {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "47ffe6256f13b34c5e6fbe8540e8ef808bcd32193ec1b3b63ec0904b5c6ee9bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ffe6256f13b34c5e6fbe8540e8ef808bcd32193ec1b3b63ec0904b5c6ee9bb", kill_on_drop: false }`
[INFO] [stdout] 47ffe6256f13b34c5e6fbe8540e8ef808bcd32193ec1b3b63ec0904b5c6ee9bb
[INFO] checking awoimbee-42/computor-v1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee-42%2Fcomputor-v1" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/awoimbee-42/computor-v1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/awoimbee-42/computor-v1
[INFO] finished tweaking git repo https://github.com/awoimbee-42/computor-v1
[INFO] tweaked toml for git repo https://github.com/awoimbee-42/computor-v1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/awoimbee-42/computor-v1 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb802e2d66fb8ae0d0519db46306eebe21c2384ee938bffa754fe4debe8903ad
[INFO] running `Command { std: "docker" "start" "-a" "fb802e2d66fb8ae0d0519db46306eebe21c2384ee938bffa754fe4debe8903ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb802e2d66fb8ae0d0519db46306eebe21c2384ee938bffa754fe4debe8903ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb802e2d66fb8ae0d0519db46306eebe21c2384ee938bffa754fe4debe8903ad", kill_on_drop: false }`
[INFO] [stdout] fb802e2d66fb8ae0d0519db46306eebe21c2384ee938bffa754fe4debe8903ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5b732718689f567304c97d9354e67792decfc72bb3b5b03ffbdb696eed3e85c
[INFO] running `Command { std: "docker" "start" "-a" "c5b732718689f567304c97d9354e67792decfc72bb3b5b03ffbdb696eed3e85c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]     Checking computor-v1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:20
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Var` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:25
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Var` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:20
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Num` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Var` is imported redundantly
[INFO] [stdout]   --> src/parsing/mod.rs:3:25
[INFO] [stdout]    |
[INFO] [stdout] 3  | use crate::types::{Num, Var};
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 | use super::types::*;
[INFO] [stdout]    |     --------------- the item `Var` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/parsing/lexer.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/float.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/real.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/float.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 8 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/real.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Num;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Num` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/num/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 8 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Value` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Num` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Num;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Num` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Value` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cmp` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `cmp` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cmp` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `cmp` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout] 5 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/types/value/var.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `fmt` is already imported here
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout] 5 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops`
[INFO] [stdout]  --> src/types/value/var.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops`
[INFO] [stdout]  --> src/types/value/var.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:203:27
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn try_mul(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:209:27
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn try_mul(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:215:27
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn try_mul(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:234:27
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn try_div(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn try_div(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:246:27
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn try_div(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:265:27
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn try_pow(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:271:27
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn try_pow(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:277:27
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn try_pow(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:203:27
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn try_mul(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:209:27
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn try_mul(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:215:27
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn try_mul(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:234:27
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn try_div(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:240:27
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn try_div(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:246:27
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn try_div(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:265:27
[INFO] [stdout]     |
[INFO] [stdout] 265 |     fn try_pow(&mut self, rhs: &mut Expr) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:271:27
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn try_pow(&mut self, rhs: &mut Var) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/types/expr.rs:277:27
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn try_pow(&mut self, rhs: &mut Num) -> Option<Self::Output> {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vars` and `funs` are never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Computor {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 13 |     vars: HashMap<String, Num>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     funs: HashMap<String, Expr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEST_TXT` is never used
[INFO] [stdout]   --> src/parsing/lexer.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 |     const TEST_TXT: &str = "this is a test string";
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `simplify` is never used
[INFO] [stdout]   --> src/types/value/var.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Var {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn simplify(self) -> Value {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vars` and `funs` are never read
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Computor {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 13 |     vars: HashMap<String, Num>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     funs: HashMap<String, Expr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `simplify` is never used
[INFO] [stdout]   --> src/types/value/var.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Var {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn simplify(self) -> Value {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.42s
[INFO] running `Command { std: "docker" "inspect" "c5b732718689f567304c97d9354e67792decfc72bb3b5b03ffbdb696eed3e85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b732718689f567304c97d9354e67792decfc72bb3b5b03ffbdb696eed3e85c", kill_on_drop: false }`
[INFO] [stdout] c5b732718689f567304c97d9354e67792decfc72bb3b5b03ffbdb696eed3e85c