[INFO] cloning repository https://github.com/artoriaschan/rust-practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/artoriaschan/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartoriaschan%2Frust-practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartoriaschan%2Frust-practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2d144d49dce9f6b352aacfea60fd0acfd25cde5a [INFO] checking artoriaschan/rust-practice 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%2Fartoriaschan%2Frust-practice" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/artoriaschan/rust-practice [INFO] finished tweaking git repo https://github.com/artoriaschan/rust-practice [INFO] tweaked toml for git repo https://github.com/artoriaschan/rust-practice written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/artoriaschan/rust-practice 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/artoriaschan/rust-practice 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: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /workspace/builds/worker-7-tc2/source/practice/Cargo.toml [INFO] [stderr] workspace: /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /workspace/builds/worker-7-tc2/source/minigrep/Cargo.toml [INFO] [stderr] workspace: /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 90a07fc8c96add1ffbddac2041d90b0cd891fa01bd31dd0db51352aab782b735 [INFO] running `Command { std: "docker" "start" "-a" "90a07fc8c96add1ffbddac2041d90b0cd891fa01bd31dd0db51352aab782b735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "90a07fc8c96add1ffbddac2041d90b0cd891fa01bd31dd0db51352aab782b735", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90a07fc8c96add1ffbddac2041d90b0cd891fa01bd31dd0db51352aab782b735", kill_on_drop: false }` [INFO] [stdout] 90a07fc8c96add1ffbddac2041d90b0cd891fa01bd31dd0db51352aab782b735 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a18740ea04f14e5e79de7a5bc7d477891c31326ebea05e939aa78e8a227bf8f0 [INFO] running `Command { std: "docker" "start" "-a" "a18740ea04f14e5e79de7a5bc7d477891c31326ebea05e939aa78e8a227bf8f0", kill_on_drop: false }` [INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /opt/rustwide/workdir/practice/Cargo.toml [INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml [INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root: [INFO] [stderr] package: /opt/rustwide/workdir/minigrep/Cargo.toml [INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking art v0.1.0 (/opt/rustwide/workdir/art) [INFO] [stderr] Checking hello_macro v0.1.0 (/opt/rustwide/workdir/practice/hello_macro) [INFO] [stderr] Checking web-server v0.1.0 (/opt/rustwide/workdir/web-server) [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking hello_macro_derive v0.1.0 (/opt/rustwide/workdir/practice/hello_macro/hello_macro_derive) [INFO] [stderr] Checking practice v0.1.0 (/opt/rustwide/workdir/practice) [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> practice/src/advanced_features/unsafe_rust.rs:92:32 [INFO] [stdout] | [INFO] [stdout] 92 | println!("COUNTER = {}", COUNTER); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> practice/src/generics_trait.rs:138:18 [INFO] [stdout] | [INFO] [stdout] 138 | let b_ = b.try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> practice/src/smart_pointer/_refcell.rs:22:27 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn new(messenger: &T, max: usize) -> LimitTracker { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 22 | pub fn new(messenger: &T, max: usize) -> LimitTracker<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `practice` (bin "practice") due to 1 previous error; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> practice/src/advanced_features/unsafe_rust.rs:92:32 [INFO] [stdout] | [INFO] [stdout] 92 | println!("COUNTER = {}", COUNTER); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> practice/src/generics_trait.rs:138:18 [INFO] [stdout] | [INFO] [stdout] 138 | let b_ = b.try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> practice/src/smart_pointer/_refcell.rs:22:27 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn new(messenger: &T, max: usize) -> LimitTracker { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 22 | pub fn new(messenger: &T, max: usize) -> LimitTracker<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `practice` (bin "practice" test) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a18740ea04f14e5e79de7a5bc7d477891c31326ebea05e939aa78e8a227bf8f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a18740ea04f14e5e79de7a5bc7d477891c31326ebea05e939aa78e8a227bf8f0", kill_on_drop: false }` [INFO] [stdout] a18740ea04f14e5e79de7a5bc7d477891c31326ebea05e939aa78e8a227bf8f0