[INFO] cloning repository https://github.com/data-niklas/cash
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/data-niklas/cash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-niklas%2Fcash", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-niklas%2Fcash'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a31d9dadbe9bfe9d07cb52a4355945b4d964d505
[INFO] checking data-niklas/cash against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-niklas%2Fcash" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/data-niklas/cash
[INFO] finished tweaking git repo https://github.com/data-niklas/cash
[INFO] tweaked toml for git repo https://github.com/data-niklas/cash written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/data-niklas/cash on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/data-niklas/cash 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03cab36e8ec8c7f2d1e19717b2869db4d8b8ea59724ef3c3f1c968a58a77a549
[INFO] running `Command { std: "docker" "start" "-a" "03cab36e8ec8c7f2d1e19717b2869db4d8b8ea59724ef3c3f1c968a58a77a549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03cab36e8ec8c7f2d1e19717b2869db4d8b8ea59724ef3c3f1c968a58a77a549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03cab36e8ec8c7f2d1e19717b2869db4d8b8ea59724ef3c3f1c968a58a77a549", kill_on_drop: false }`
[INFO] [stdout] 03cab36e8ec8c7f2d1e19717b2869db4d8b8ea59724ef3c3f1c968a58a77a549
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab663c5f5dd9d1786c6663064abf6fa8f4b6e4dd1cda58d042a643036bdbd6c9
[INFO] running `Command { std: "docker" "start" "-a" "ab663c5f5dd9d1786c6663064abf6fa8f4b6e4dd1cda58d042a643036bdbd6c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking mortal v0.2.2
[INFO] [stderr]     Checking linefeed v0.6.0
[INFO] [stderr]     Checking cash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/lang/functions.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter`
[INFO] [stdout]  --> src/lang/functions.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Child`
[INFO] [stdout]  --> src/lang/system.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::{Child, Command};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/lang/functions.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter`
[INFO] [stdout]  --> src/lang/functions.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Child`
[INFO] [stdout]  --> src/lang/system.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::{Child, Command};
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lang/math.rs:392:33
[INFO] [stdout]     |
[INFO] [stdout] 392 |     } else if let Result::Array(mut a1) = lhs {
[INFO] [stdout]     |                                 ----^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]    --> src/lang/type.rs:118:48
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn join(array: Result, joinstring: Result, runtime: Arc<Runtime>, ctx: Arc<Context>) -> Result {
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lang/type.rs:118:71
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn join(array: Result, joinstring: Result, runtime: Arc<Runtime>, ctx: Arc<Context>) -> Result {
[INFO] [stdout]     |                                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/lang/eval.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let node = pair.clone();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newruntime`
[INFO] [stdout]    --> src/lang/eval.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let newruntime = Arc::clone(&runtime);
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newruntime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newctx`
[INFO] [stdout]    --> src/lang/eval.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let newctx = Arc::new(Context::from_parent(&*ctx, ctx.node));
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_newctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lang/math.rs:392:33
[INFO] [stdout]     |
[INFO] [stdout] 392 |     } else if let Result::Array(mut a1) = lhs {
[INFO] [stdout]     |                                 ----^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runtime`
[INFO] [stdout]    --> src/lang/type.rs:118:48
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn join(array: Result, joinstring: Result, runtime: Arc<Runtime>, ctx: Arc<Context>) -> Result {
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_runtime`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/lang/type.rs:118:71
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn join(array: Result, joinstring: Result, runtime: Arc<Runtime>, ctx: Arc<Context>) -> Result {
[INFO] [stdout]     |                                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/lang/eval.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let node = pair.clone();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newruntime`
[INFO] [stdout]    --> src/lang/eval.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |         let newruntime = Arc::clone(&runtime);
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newruntime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newctx`
[INFO] [stdout]    --> src/lang/eval.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let newctx = Arc::new(Context::from_parent(&*ctx, ctx.node));
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_newctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_call` is never used
[INFO] [stdout]    --> src/lang/eval.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_call(unary_expr: &Node) -> anyhow::Result<&Node> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/context.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 93 |         name: &str,
[INFO] [stdout] 94 |     ) -> Option<MutexGuardRefMut<HashMap<String, Result>, Result>> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 94 |     ) -> Option<MutexGuardRefMut<'_, HashMap<String, Result>, Result>> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             self.interface.load_history(path);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |             let _ = self.interface.load_history(path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             self.interface.save_history(path);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let _ = self.interface.save_history(path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 self.include_file(path.as_path());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let _ = self.include_file(path.as_path());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/runtime.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         std::env::set_current_dir(std::fs::canonicalize(path.parent().unwrap()).unwrap());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let _ = std::env::set_current_dir(std::fs::canonicalize(path.parent().unwrap()).unwrap());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/runtime.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 |         std::env::set_current_dir(cd);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let _ = std::env::set_current_dir(cd);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lang/functions.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             std::env::set_current_dir(&std::path::Path::new(&path));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let _ = std::env::set_current_dir(&std::path::Path::new(&path));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/lang/system.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Command::new(file).args(args).stdin(Stdio::inherit()).stdout(Stdio::inherit()).spawn().unwrap().wait();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = Command::new(file).args(args).stdin(Stdio::inherit()).stdout(Stdio::inherit()).spawn().unwrap().wait();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_call` is never used
[INFO] [stdout]    --> src/lang/eval.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_call(unary_expr: &Node) -> anyhow::Result<&Node> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/context.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 93 |         name: &str,
[INFO] [stdout] 94 |     ) -> Option<MutexGuardRefMut<HashMap<String, Result>, Result>> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 94 |     ) -> Option<MutexGuardRefMut<'_, HashMap<String, Result>, Result>> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |             self.interface.load_history(path);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |             let _ = self.interface.load_history(path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             self.interface.save_history(path);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let _ = self.interface.save_history(path);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 self.include_file(path.as_path());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let _ = self.include_file(path.as_path());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/runtime.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         std::env::set_current_dir(std::fs::canonicalize(path.parent().unwrap()).unwrap());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let _ = std::env::set_current_dir(std::fs::canonicalize(path.parent().unwrap()).unwrap());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/runtime.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 |         std::env::set_current_dir(cd);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let _ = std::env::set_current_dir(cd);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lang/functions.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             std::env::set_current_dir(&std::path::Path::new(&path));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let _ = std::env::set_current_dir(&std::path::Path::new(&path));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/lang/system.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Command::new(file).args(args).stdin(Stdio::inherit()).stdout(Stdio::inherit()).spawn().unwrap().wait();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = Command::new(file).args(args).stdin(Stdio::inherit()).stdout(Stdio::inherit()).spawn().unwrap().wait();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.97s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, terminfo v0.7.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "ab663c5f5dd9d1786c6663064abf6fa8f4b6e4dd1cda58d042a643036bdbd6c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab663c5f5dd9d1786c6663064abf6fa8f4b6e4dd1cda58d042a643036bdbd6c9", kill_on_drop: false }`
[INFO] [stdout] ab663c5f5dd9d1786c6663064abf6fa8f4b6e4dd1cda58d042a643036bdbd6c9
