[INFO] cloning repository https://github.com/andreisilviudragnea/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andreisilviudragnea/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreisilviudragnea%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreisilviudragnea%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2565251f540a2667fad4ced15c747d4d9a72be5b [INFO] checking andreisilviudragnea/learning-rust against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreisilviudragnea%2Flearning-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/andreisilviudragnea/learning-rust [INFO] finished tweaking git repo https://github.com/andreisilviudragnea/learning-rust [INFO] tweaked toml for git repo https://github.com/andreisilviudragnea/learning-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/andreisilviudragnea/learning-rust on toolchain e117153a45c546e883c1f91d82611775fcaeffe0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/andreisilviudragnea/learning-rust 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc3cb4833d016cb7232240ffc6a3b3589e443ae9e641367aabf1fa3cc83aa415 [INFO] running `Command { std: "docker" "start" "-a" "fc3cb4833d016cb7232240ffc6a3b3589e443ae9e641367aabf1fa3cc83aa415", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc3cb4833d016cb7232240ffc6a3b3589e443ae9e641367aabf1fa3cc83aa415", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc3cb4833d016cb7232240ffc6a3b3589e443ae9e641367aabf1fa3cc83aa415", kill_on_drop: false }` [INFO] [stdout] fc3cb4833d016cb7232240ffc6a3b3589e443ae9e641367aabf1fa3cc83aa415 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1cd32af8edf0580a8df821718694d0ce14a5a154c31d09bff7df23772bef9ce [INFO] running `Command { std: "docker" "start" "-a" "f1cd32af8edf0580a8df821718694d0ce14a5a154c31d09bff7df23772bef9ce", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Checking pin-project-lite v0.2.12 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Compiling parking_lot_core v0.9.7 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking socket2 v0.6.1 [INFO] [stderr] Checking mio v1.0.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking learning-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `option_function_first_none_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn option_function_first_none_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_none_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn option_function_first_none_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn option_function_first_some_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn option_function_first_some_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_match_components_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn option_function_first_some_no_match_components_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_match_components_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn option_function_first_some_no_match_components_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused logical operation that must be used [INFO] [stdout] --> src/scope.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | / *t1 && { [INFO] [stdout] 14 | | let t2 = x.borrow_mut(); [INFO] [stdout] 15 | | *t2 [INFO] [stdout] 16 | | } [INFO] [stdout] | |_________^ the logical operation produces a value [INFO] [stdout] | [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] 13 ~ let _ = *t1 && { [INFO] [stdout] 14 | let t2 = x.borrow_mut(); [INFO] [stdout] 15 | *t2 [INFO] [stdout] 16 ~ }; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_none_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn option_function_first_none_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_none_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn option_function_first_none_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn option_function_first_some_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | pub fn option_function_first_some_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_match_components_no_return` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn option_function_first_some_no_match_components_no_return(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `option_function_first_some_no_match_components_no_return_after_fix` is never used [INFO] [stdout] --> src/clippy/question_mark.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn option_function_first_some_no_match_components_no_return_after_fix(input: Option) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused logical operation that must be used [INFO] [stdout] --> src/scope.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | / *t1 && { [INFO] [stdout] 14 | | let t2 = x.borrow_mut(); [INFO] [stdout] 15 | | *t2 [INFO] [stdout] 16 | | } [INFO] [stdout] | |_________^ the logical operation produces a value [INFO] [stdout] | [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] 13 ~ let _ = *t1 && { [INFO] [stdout] 14 | let t2 = x.borrow_mut(); [INFO] [stdout] 15 | *t2 [INFO] [stdout] 16 ~ }; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.96s [INFO] running `Command { std: "docker" "inspect" "f1cd32af8edf0580a8df821718694d0ce14a5a154c31d09bff7df23772bef9ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1cd32af8edf0580a8df821718694d0ce14a5a154c31d09bff7df23772bef9ce", kill_on_drop: false }` [INFO] [stdout] f1cd32af8edf0580a8df821718694d0ce14a5a154c31d09bff7df23772bef9ce