[INFO] cloning repository https://github.com/p-davide/cwim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/p-davide/cwim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-davide%2Fcwim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-davide%2Fcwim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46316064a2ba38a51e8f68e83a04f87231aa5883
[INFO] checking p-davide/cwim against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp-davide%2Fcwim" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/p-davide/cwim
[INFO] finished tweaking git repo https://github.com/p-davide/cwim
[INFO] tweaked toml for git repo https://github.com/p-davide/cwim written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/p-davide/cwim on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/p-davide/cwim 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8parse v0.2.1
[INFO] [stderr]   Downloaded rustyline v15.0.0
[INFO] [stderr]   Downloaded fd-lock v4.0.2
[INFO] [stderr]   Downloaded num v0.4.3
[INFO] [stderr]   Downloaded error-code v3.2.0
[INFO] [stderr]   Downloaded smallvec v1.11.2
[INFO] [stderr]   Downloaded clipboard-win v5.3.1
[INFO] [stderr]   Downloaded memchr v2.7.2
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.1
[INFO] [stderr]   Downloaded num-bigint v0.4.5
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d
[INFO] running `Command { std: "docker" "start" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.5
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking rustyline v15.0.0
[INFO] [stderr]     Checking cwim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:114:43
[INFO] [stdout]     |
[INFO] [stdout] 114 |         self.to_f64().unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]    --> src/number.rs:191:67
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 Number::Flt(x.powi(y.to_i32().unwrap_or(std::i32::MIN)))
[INFO] [stdout]     |                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:194:67
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 Number::Flt(x.powf(y.to_f64().unwrap_or(std::f64::NAN)))
[INFO] [stdout]     |                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:199:42
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     .unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:200:58
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     .powf(y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:209:42
[INFO] [stdout]     |
[INFO] [stdout] 209 |                     .unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:210:58
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     .powf(y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:228:83
[INFO] [stdout]     |
[INFO] [stdout] 228 |             (Number::Flt(x), y) => Number::Flt(x % y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:229:79
[INFO] [stdout]     |
[INFO] [stdout] 229 |             (x, Number::Flt(y)) => Number::Flt(x.to_f64().unwrap_or(std::f64::NAN) % y),
[INFO] [stdout]     |                                                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:114:43
[INFO] [stdout]     |
[INFO] [stdout] 114 |         self.to_f64().unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]    --> src/number.rs:191:67
[INFO] [stdout]     |
[INFO] [stdout] 191 |                 Number::Flt(x.powi(y.to_i32().unwrap_or(std::i32::MIN)))
[INFO] [stdout]     |                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:194:67
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 Number::Flt(x.powf(y.to_f64().unwrap_or(std::f64::NAN)))
[INFO] [stdout]     |                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:199:42
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     .unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:200:58
[INFO] [stdout]     |
[INFO] [stdout] 200 |                     .powf(y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:209:42
[INFO] [stdout]     |
[INFO] [stdout] 209 |                     .unwrap_or(std::f64::NAN)
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:210:58
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     .powf(y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:228:83
[INFO] [stdout]     |
[INFO] [stdout] 228 |             (Number::Flt(x), y) => Number::Flt(x % y.to_f64().unwrap_or(std::f64::NAN)),
[INFO] [stdout]     |                                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/number.rs:229:79
[INFO] [stdout]     |
[INFO] [stdout] 229 |             (x, Number::Flt(y)) => Number::Flt(x.to_f64().unwrap_or(std::f64::NAN) % y),
[INFO] [stdout]     |                                                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/env.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn get(&self, l: &str) -> Option<&Variable> {
[INFO] [stdout]    |                ^^^^^                     ^^^^^^^^^
[INFO] [stdout]    |                |                         ||
[INFO] [stdout]    |                |                         |the same lifetime is hidden here
[INFO] [stdout]    |                |                         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided 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] 98 |     pub fn get(&self, l: &str) -> Option<&Variable<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn find_value(&self, l: &str) -> Parsed<Expr> {
[INFO] [stdout]     |                       ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn find_value(&self, l: &str) -> Parsed<Expr<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:114:23
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn find_unary(&self, l: &str) -> Parsed<Function> {
[INFO] [stdout]     |                       ^^^^^                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn find_unary(&self, l: &str) -> Parsed<Function<'_>> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:125:24
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn find_binary(&self, l: &str) -> Parsed<Function> {
[INFO] [stdout]     |                        ^^^^^                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn find_binary(&self, l: &str) -> Parsed<Function<'_>> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:136:19
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn assign(&mut self, lhs: String, rhs: &Number) -> Option<Variable> {
[INFO] [stdout]     |                   ^^^^^^^^^ the lifetime is elided here           ^^^^^^^^ 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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn assign(&mut self, lhs: String, rhs: &Number) -> Option<Variable<'_>> {
[INFO] [stdout]     |                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/env.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn get(&self, l: &str) -> Option<&Variable> {
[INFO] [stdout]    |                ^^^^^                     ^^^^^^^^^
[INFO] [stdout]    |                |                         ||
[INFO] [stdout]    |                |                         |the same lifetime is hidden here
[INFO] [stdout]    |                |                         the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided 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] 98 |     pub fn get(&self, l: &str) -> Option<&Variable<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn find_value(&self, l: &str) -> Parsed<Expr> {
[INFO] [stdout]     |                       ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn find_value(&self, l: &str) -> Parsed<Expr<'_>> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:114:23
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn find_unary(&self, l: &str) -> Parsed<Function> {
[INFO] [stdout]     |                       ^^^^^                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn find_unary(&self, l: &str) -> Parsed<Function<'_>> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:125:24
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn find_binary(&self, l: &str) -> Parsed<Function> {
[INFO] [stdout]     |                        ^^^^^                     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn find_binary(&self, l: &str) -> Parsed<Function<'_>> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/env.rs:136:19
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn assign(&mut self, lhs: String, rhs: &Number) -> Option<Variable> {
[INFO] [stdout]     |                   ^^^^^^^^^ the lifetime is elided here           ^^^^^^^^ 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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn assign(&mut self, lhs: String, rhs: &Number) -> Option<Variable<'_>> {
[INFO] [stdout]     |                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d", kill_on_drop: false }`
[INFO] [stdout] 0e1840b0a17fd9c5c511ec852e16567beffac5d0829630c117fd66d5d2e00e0d
