[INFO] cloning repository https://github.com/gbrls/kurl [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gbrls/kurl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbrls%2Fkurl", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbrls%2Fkurl'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dda4e8583a0a448879e3f4d7c8aaec705059ae01 [INFO] testing gbrls/kurl against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbrls%2Fkurl" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/gbrls/kurl [INFO] finished tweaking git repo https://github.com/gbrls/kurl [INFO] tweaked toml for git repo https://github.com/gbrls/kurl written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/gbrls/kurl on toolchain 1.99.0-beta.8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/gbrls/kurl 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thiserror-impl v1.0.39 [INFO] [stderr] Downloaded thiserror v1.0.39 [INFO] [stderr] Downloaded unicode-ident v1.0.6 [INFO] [stderr] Downloaded fastrand v1.8.0 [INFO] [stderr] Downloaded openssl-macros v0.1.0 [INFO] [stderr] Downloaded xml-rs v0.8.4 [INFO] [stderr] Downloaded strip-ansi-escapes v0.1.1 [INFO] [stderr] Downloaded futures-sink v0.3.25 [INFO] [stderr] Downloaded vte_generate_state_changes v0.1.1 [INFO] [stderr] Downloaded is-terminal v0.4.2 [INFO] [stderr] Downloaded itoa v1.0.5 [INFO] [stderr] Downloaded futures-io v0.3.25 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.4.33 [INFO] [stderr] Downloaded clap_lex v0.3.1 [INFO] [stderr] Downloaded futures-core v0.3.25 [INFO] [stderr] Downloaded tempfile v3.3.0 [INFO] [stderr] Downloaded futures-task v0.3.25 [INFO] [stderr] Downloaded vte v0.10.1 [INFO] [stderr] Downloaded slab v0.4.7 [INFO] [stderr] Downloaded clap_derive v4.1.0 [INFO] [stderr] Downloaded quote v1.0.23 [INFO] [stderr] Downloaded futures-channel v0.3.25 [INFO] [stderr] Downloaded snailquote v0.3.1 [INFO] [stderr] Downloaded socket2 v0.4.7 [INFO] [stderr] Downloaded proc-macro2 v1.0.50 [INFO] [stderr] Downloaded ipnet v2.7.1 [INFO] [stderr] Downloaded unicode-bidi v0.3.10 [INFO] [stderr] Downloaded io-lifetimes v1.0.4 [INFO] [stderr] Downloaded ryu v1.0.12 [INFO] [stderr] Downloaded openssl-sys v0.9.80 [INFO] [stderr] Downloaded cc v1.0.78 [INFO] [stderr] Downloaded bytes v1.3.0 [INFO] [stderr] Downloaded indexmap v1.9.2 [INFO] [stderr] Downloaded tokio-util v0.7.4 [INFO] [stderr] Downloaded security-framework v2.8.1 [INFO] [stderr] Downloaded mio v0.8.5 [INFO] [stderr] Downloaded serde v1.0.152 [INFO] [stderr] Downloaded http v0.2.8 [INFO] [stderr] Downloaded serde_json v1.0.91 [INFO] [stderr] Downloaded reqwest v0.11.14 [INFO] [stderr] Downloaded h2 v0.3.15 [INFO] [stderr] Downloaded futures-util v0.3.25 [INFO] [stderr] Downloaded hyper v0.14.23 [INFO] [stderr] Downloaded clap v4.1.4 [INFO] [stderr] Downloaded syn v1.0.107 [INFO] [stderr] Downloaded openssl v0.10.45 [INFO] [stderr] Downloaded rustix v0.36.7 [INFO] [stderr] Downloaded windows_aarch64_gnullvm v0.42.1 [INFO] [stderr] Downloaded windows_x86_64_gnullvm v0.42.1 [INFO] [stderr] Downloaded tokio v1.24.2 [INFO] [stderr] Downloaded windows_aarch64_msvc v0.42.1 [INFO] [stderr] Downloaded windows_x86_64_msvc v0.42.1 [INFO] [stderr] Downloaded windows_x86_64_gnu v0.42.1 [INFO] [stderr] Downloaded web-sys v0.3.60 [INFO] [stderr] Downloaded windows_i686_msvc v0.42.1 [INFO] [stderr] Downloaded windows_i686_gnu v0.42.1 [INFO] [stderr] Downloaded encoding_rs v0.8.31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c [INFO] running `Command { std: "docker" "start" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", 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" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling proc-macro2 v1.0.50 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling once_cell v1.17.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling cc v1.0.78 [INFO] [stderr] Compiling bytes v1.3.0 [INFO] [stderr] Compiling futures-core v0.3.25 [INFO] [stderr] Compiling itoa v1.0.5 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling futures-task v0.3.25 [INFO] [stderr] Compiling openssl v0.10.45 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling futures-io v0.3.25 [INFO] [stderr] Compiling tracing-core v0.1.30 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Compiling io-lifetimes v1.0.4 [INFO] [stderr] Compiling futures-sink v0.3.25 [INFO] [stderr] Compiling tinyvec v1.6.0 [INFO] [stderr] Compiling tokio v1.24.2 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling rustix v0.36.7 [INFO] [stderr] Compiling percent-encoding v2.2.0 [INFO] [stderr] Compiling try-lock v0.2.4 [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] Compiling form_urlencoded v1.1.0 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling http v0.2.8 [INFO] [stderr] Compiling encoding_rs v0.8.31 [INFO] [stderr] Compiling tower-service v0.3.2 [INFO] [stderr] Compiling unicode-bidi v0.3.10 [INFO] [stderr] Compiling ryu v1.0.12 [INFO] [stderr] Compiling httpdate v1.0.2 [INFO] [stderr] Compiling linux-raw-sys v0.1.4 [INFO] [stderr] Compiling thiserror v1.0.39 [INFO] [stderr] Compiling tracing v0.1.37 [INFO] [stderr] Compiling openssl-sys v0.9.80 [INFO] [stderr] Compiling os_str_bytes v6.4.1 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling anyhow v1.0.70 [INFO] [stderr] Compiling clap_lex v0.3.1 [INFO] [stderr] Compiling vte_generate_state_changes v0.1.1 [INFO] [stderr] Compiling num_cpus v1.15.0 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling unicode-normalization v0.1.22 [INFO] [stderr] Compiling vte v0.10.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling http-body v0.4.5 [INFO] [stderr] Compiling base64 v0.21.0 [INFO] [stderr] Compiling unicode_categories v0.1.1 [INFO] [stderr] Compiling idna v0.3.0 [INFO] [stderr] Compiling xml-rs v0.8.4 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling is-terminal v0.4.2 [INFO] [stderr] Compiling ipnet v2.7.1 [INFO] [stderr] Compiling either v1.8.1 [INFO] [stderr] Compiling termcolor v1.2.0 [INFO] [stderr] Compiling colored v2.0.0 [INFO] [stderr] Compiling url v2.3.1 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling strip-ansi-escapes v0.1.1 [INFO] [stderr] Compiling threadpool v1.8.1 [INFO] [stderr] Compiling xmltree v0.10.3 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling openssl-macros v0.1.0 [INFO] [stderr] Compiling thiserror-impl v1.0.39 [INFO] [stderr] Compiling clap_derive v4.1.0 [INFO] [stderr] Compiling snailquote v0.3.1 [INFO] [stderr] Compiling clap v4.1.4 [INFO] [stderr] Compiling tokio-util v0.7.4 [INFO] [stderr] Compiling h2 v0.3.15 [INFO] [stderr] Compiling tokio-native-tls v0.3.0 [INFO] [stderr] Compiling hyper v0.14.23 [INFO] [stderr] Compiling hyper-tls v0.5.0 [INFO] [stderr] Compiling reqwest v0.11.14 [INFO] [stderr] Compiling kurl v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/print.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let mut ret_str = String::new(); [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: `headers` [INFO] [stdout] --> src/print.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let headers = resp.headers().clone(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_headers` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ret_str` [INFO] [stdout] --> src/print.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let mut ret_str = String::new(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ret_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `data` is never read [INFO] [stdout] --> src/print.rs:82:36 [INFO] [stdout] | [INFO] [stdout] 82 | let mut data: Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] ... [INFO] [stdout] 91 | data = Some(resp.text()?); [INFO] [stdout] | ---- `data` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run_scripts` is never used [INFO] [stdout] --> src/main.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn run_scripts(_scripts: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `release` profile [optimized] target(s) in 1m 18s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.45 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }` [INFO] [stderr] Compiling kurl v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::*` [INFO] [stdout] --> src/tests.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/print.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let mut ret_str = String::new(); [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: `headers` [INFO] [stdout] --> src/print.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let headers = resp.headers().clone(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_headers` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ret_str` [INFO] [stdout] --> src/print.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let mut ret_str = String::new(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ret_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `data` is never read [INFO] [stdout] --> src/print.rs:82:36 [INFO] [stdout] | [INFO] [stdout] 82 | let mut data: Option = None; [INFO] [stdout] | ^^^^ this value is reassigned later and never used [INFO] [stdout] ... [INFO] [stdout] 91 | data = Some(resp.text()?); [INFO] [stdout] | ---- `data` is overwritten here before the previous value is read [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run_scripts` is never used [INFO] [stdout] --> src/main.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn run_scripts(_scripts: &[String]) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `release` profile [optimized] target(s) in 0.79s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.45 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `crate::*` [INFO] [stderr] --> src/tests.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | use crate::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/print.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | let mut ret_str = String::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `headers` [INFO] [stderr] --> src/print.rs:65:9 [INFO] [stderr] | [INFO] [stderr] 65 | let headers = resp.headers().clone(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_headers` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ret_str` [INFO] [stderr] --> src/print.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | let mut ret_str = String::new(); [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ret_str` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `data` is never read [INFO] [stderr] --> src/print.rs:82:36 [INFO] [stderr] | [INFO] [stderr] 82 | let mut data: Option = None; [INFO] [stderr] | ^^^^ this value is reassigned later and never used [INFO] [stderr] ... [INFO] [stderr] 91 | data = Some(resp.text()?); [INFO] [stderr] | ---- `data` is overwritten here before the previous value is read [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `run_scripts` is never used [INFO] [stderr] --> src/main.rs:105:4 [INFO] [stderr] | [INFO] [stderr] 105 | fn run_scripts(_scripts: &[String]) -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `kurl` (bin "kurl" test) generated 6 warnings (run `cargo fix --bin "kurl" -p kurl --tests` to apply 4 suggestions) [INFO] [stderr] Finished `release` profile [optimized] target(s) in 0.14s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.45 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/release/deps/kurl-c9a5223f9f27d369) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::tests::a ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c", kill_on_drop: false }` [INFO] [stdout] 58d398be7fc01af992d064ee580bec0d73a24135eca633f2efffc4bf51c2030c