[INFO] fetching crate lookbusy 0.2.6... [INFO] checking lookbusy-0.2.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lookbusy 0.2.6 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate lookbusy 0.2.6 [INFO] finished tweaking crates.io crate lookbusy 0.2.6 [INFO] tweaked toml for crates.io crate lookbusy 0.2.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lookbusy 0.2.6 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 crates.io crate lookbusy 0.2.6 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 14a36b7c49cdfea6c74514ae66e5c6827b176043069bade5a32be353bc89c193 [INFO] running `Command { std: "docker" "start" "-a" "14a36b7c49cdfea6c74514ae66e5c6827b176043069bade5a32be353bc89c193", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14a36b7c49cdfea6c74514ae66e5c6827b176043069bade5a32be353bc89c193", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14a36b7c49cdfea6c74514ae66e5c6827b176043069bade5a32be353bc89c193", kill_on_drop: false }` [INFO] [stdout] 14a36b7c49cdfea6c74514ae66e5c6827b176043069bade5a32be353bc89c193 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 863b84a41807461da837b52d73e5b012f781e5cec1e71f4d8d095ed82912fe50 [INFO] running `Command { std: "docker" "start" "-a" "863b84a41807461da837b52d73e5b012f781e5cec1e71f4d8d095ed82912fe50", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking bitflags v2.4.2 [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking textwrap v0.16.1 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking nix v0.27.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking core_affinity v0.8.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rayon v1.9.0 [INFO] [stderr] Checking ctrlc v3.4.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling clap_derive v3.2.25 [INFO] [stderr] Checking sysinfo v0.27.8 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking lookbusy v0.2.6 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | log_path: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lookbusy` (bin "lookbusy" test) due to 2 previous errors; 6 warnings emitted [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | config: Option [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:82:13 [INFO] [stdout] | [INFO] [stdout] 82 | HANDLES.push(handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | HANDLES.push(handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | EAT_MEM.resize(target_size_bit.try_into().unwrap(), 1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:185:9 [INFO] [stdout] | [INFO] [stdout] 185 | HANDLES.push(processing_handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:188:34 [INFO] [stdout] | [INFO] [stdout] 188 | while let Some(handle) = HANDLES.pop() { [INFO] [stdout] | ^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:205:34 [INFO] [stdout] | [INFO] [stdout] 205 | while let Some(handle) = HANDLES.pop() { [INFO] [stdout] | ^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | log_path: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | config: Option [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:82:13 [INFO] [stdout] | [INFO] [stdout] 82 | HANDLES.push(handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | HANDLES.push(handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | EAT_MEM.resize(target_size_bit.try_into().unwrap(), 1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:185:9 [INFO] [stdout] | [INFO] [stdout] 185 | HANDLES.push(processing_handle); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static [INFO] [stdout] --> src/main.rs:188:34 [INFO] [stdout] | [INFO] [stdout] 188 | while let Some(handle) = HANDLES.pop() { [INFO] [stdout] | ^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lookbusy` (bin "lookbusy") due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "863b84a41807461da837b52d73e5b012f781e5cec1e71f4d8d095ed82912fe50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "863b84a41807461da837b52d73e5b012f781e5cec1e71f4d8d095ed82912fe50", kill_on_drop: false }` [INFO] [stdout] 863b84a41807461da837b52d73e5b012f781e5cec1e71f4d8d095ed82912fe50