[INFO] cloning repository https://github.com/yukimemi/gsr-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yukimemi/gsr-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 245cae1f9f03afab8c523ecb40abe96ca094a33d [INFO] checking yukimemi/gsr-rs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs" "/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/yukimemi/gsr-rs [INFO] finished tweaking git repo https://github.com/yukimemi/gsr-rs [INFO] tweaked toml for git repo https://github.com/yukimemi/gsr-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/yukimemi/gsr-rs on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/yukimemi/gsr-rs 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a0f0b29928ceaa736048c07ee6e10fa4197887f4eece3687ee644581fe1c853 [INFO] running `Command { std: "docker" "start" "-a" "0a0f0b29928ceaa736048c07ee6e10fa4197887f4eece3687ee644581fe1c853", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a0f0b29928ceaa736048c07ee6e10fa4197887f4eece3687ee644581fe1c853", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a0f0b29928ceaa736048c07ee6e10fa4197887f4eece3687ee644581fe1c853", kill_on_drop: false }` [INFO] [stdout] 0a0f0b29928ceaa736048c07ee6e10fa4197887f4eece3687ee644581fe1c853 [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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d9e49b6d14ea603ec8b77ce6a04f0c0ab5aa1fd7927e2663c5d985b881832c1 [INFO] running `Command { std: "docker" "start" "-a" "1d9e49b6d14ea603ec8b77ce6a04f0c0ab5aa1fd7927e2663c5d985b881832c1", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking libc v0.2.33 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking lazy_static v0.2.9 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking same-file v1.0.0 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking walkdir v2.0.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking atty v0.2.3 [INFO] [stderr] Checking num_cpus v1.7.0 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking threadpool v1.7.1 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Compiling structopt-derive v0.1.4 [INFO] [stderr] Checking structopt v0.1.4 [INFO] [stderr] Checking gsr v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | / lazy_static! { [INFO] [stdout] 175 | | static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap(); [INFO] [stdout] 176 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | / lazy_static! { [INFO] [stdout] 175 | | static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap(); [INFO] [stdout] 176 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | / lazy_static! { [INFO] [stdout] 188 | | static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap(); [INFO] [stdout] 189 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | / lazy_static! { [INFO] [stdout] 188 | | static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap(); [INFO] [stdout] 189 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(attr_literals)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right`: superseded by `trim_end` [INFO] [stdout] --> src/main.rs:61:74 [INFO] [stdout] | [INFO] [stdout] 61 | return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_right()).max_depth(4); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 61 - return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_right()).max_depth(4); [INFO] [stdout] 61 + return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_end()).max_depth(4); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | / lazy_static! { [INFO] [stdout] 175 | | static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap(); [INFO] [stdout] 176 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | / lazy_static! { [INFO] [stdout] 175 | | static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap(); [INFO] [stdout] 176 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | / lazy_static! { [INFO] [stdout] 188 | | static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap(); [INFO] [stdout] 189 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred [INFO] [stdout] --> src/main.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | / lazy_static! { [INFO] [stdout] 188 | | static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap(); [INFO] [stdout] 189 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(attr_literals)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | `Opt` is not local [INFO] [stdout] | `StructOpt` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_STRUCTOPT_FOR_Opt` [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `StructOpt` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `StructOpt` may come from an old version of the `structopt_derive` crate, try updating your dependency with `cargo update -p structopt_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | `Opt` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_STRUCTOPT_FOR_Opt` [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `StructOpt` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `StructOpt` may come from an old version of the `structopt_derive` crate, try updating your dependency with `cargo update -p structopt_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | / walk_dir [INFO] [stdout] 74 | | .into_iter() [INFO] [stdout] 75 | | .map(|e| match e { [INFO] [stdout] 76 | | Ok(e) => { [INFO] [stdout] ... | [INFO] [stdout] 95 | | }) [INFO] [stdout] 96 | | .collect::>(); [INFO] [stdout] | |________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [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] 73 | let _ = walk_dir [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:218:5 [INFO] [stdout] | [INFO] [stdout] 218 | / gsrs.into_iter() [INFO] [stdout] 219 | | .map(|gsr| { [INFO] [stdout] 220 | | if opt.all { [INFO] [stdout] 221 | | print_gsr(&gsr, &opt); [INFO] [stdout] ... | [INFO] [stdout] 231 | | }) [INFO] [stdout] 232 | | .collect::>(); [INFO] [stdout] | |____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 218 | let _ = gsrs.into_iter() [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `gsr` (bin "gsr" test) due to 1 previous error; 10 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right`: superseded by `trim_end` [INFO] [stdout] --> src/main.rs:61:74 [INFO] [stdout] | [INFO] [stdout] 61 | return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_right()).max_depth(4); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 61 - return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_right()).max_depth(4); [INFO] [stdout] 61 + return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_end()).max_depth(4); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | `Opt` is not local [INFO] [stdout] | `StructOpt` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_STRUCTOPT_FOR_Opt` [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `StructOpt` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `StructOpt` may come from an old version of the `structopt_derive` crate, try updating your dependency with `cargo update -p structopt_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/main.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | #[derive(StructOpt, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | `Opt` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_STRUCTOPT_FOR_Opt` [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `StructOpt` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `StructOpt` may come from an old version of the `structopt_derive` crate, try updating your dependency with `cargo update -p structopt_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | / walk_dir [INFO] [stdout] 74 | | .into_iter() [INFO] [stdout] 75 | | .map(|e| match e { [INFO] [stdout] 76 | | Ok(e) => { [INFO] [stdout] ... | [INFO] [stdout] 95 | | }) [INFO] [stdout] 96 | | .collect::>(); [INFO] [stdout] | |________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [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] 73 | let _ = walk_dir [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/main.rs:218:5 [INFO] [stdout] | [INFO] [stdout] 218 | / gsrs.into_iter() [INFO] [stdout] 219 | | .map(|gsr| { [INFO] [stdout] 220 | | if opt.all { [INFO] [stdout] 221 | | print_gsr(&gsr, &opt); [INFO] [stdout] ... | [INFO] [stdout] 231 | | }) [INFO] [stdout] 232 | | .collect::>(); [INFO] [stdout] | |____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 218 | let _ = gsrs.into_iter() [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `gsr` (bin "gsr") due to 1 previous error; 10 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1d9e49b6d14ea603ec8b77ce6a04f0c0ab5aa1fd7927e2663c5d985b881832c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d9e49b6d14ea603ec8b77ce6a04f0c0ab5aa1fd7927e2663c5d985b881832c1", kill_on_drop: false }` [INFO] [stdout] 1d9e49b6d14ea603ec8b77ce6a04f0c0ab5aa1fd7927e2663c5d985b881832c1