[INFO] fetching crate klogger 0.0.16... [INFO] checking klogger-0.0.16 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate klogger 0.0.16 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate klogger 0.0.16 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate klogger 0.0.16 [INFO] finished tweaking crates.io crate klogger 0.0.16 [INFO] tweaked toml for crates.io crate klogger 0.0.16 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 41 packages to latest compatible versions [INFO] [stderr] Adding aligned v0.3.5 (available: v0.4.2) [INFO] [stderr] Adding as-slice v0.1.5 (available: v0.2.1) [INFO] [stderr] Adding bare-metal v0.2.5 (available: v1.0.0) [INFO] [stderr] Adding bitfield v0.13.2 (available: v0.17.0) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding cortex-m v0.6.7 (available: v0.7.7) [INFO] [stderr] Adding embedded-hal v0.2.7 (available: v1.0.0) [INFO] [stderr] Adding generic-array v0.12.4 (available: v1.1.0) [INFO] [stderr] Adding generic-array v0.13.3 (available: v1.1.0) [INFO] [stderr] Adding generic-array v0.14.7 (available: v1.1.0) [INFO] [stderr] Adding hash32 v0.2.1 (available: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (available: v0.8.0) [INFO] [stderr] Adding nb v0.1.3 (available: v1.1.0) [INFO] [stderr] Adding raw-cpuid v10.7.0 (available: v11.1.0) [INFO] [stderr] Adding rustc_version v0.2.3 (available: v0.4.1) [INFO] [stderr] Adding semver v0.9.0 (available: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (available: v0.10.2) [INFO] [stderr] Adding spin v0.5.2 (available: v0.9.8) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51a6034b2f69e7723fad53f363fc7e2a9aec4894f571fd74938cf2b97ffab767 [INFO] running `Command { std: "docker" "start" "-a" "51a6034b2f69e7723fad53f363fc7e2a9aec4894f571fd74938cf2b97ffab767", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51a6034b2f69e7723fad53f363fc7e2a9aec4894f571fd74938cf2b97ffab767", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51a6034b2f69e7723fad53f363fc7e2a9aec4894f571fd74938cf2b97ffab767", kill_on_drop: false }` [INFO] [stdout] 51a6034b2f69e7723fad53f363fc7e2a9aec4894f571fd74938cf2b97ffab767 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e56e1801ba39628195003e62cd1aed18ec76cbf505f34ce1d2ccc0604b2e4ec6 [INFO] running `Command { std: "docker" "start" "-a" "e56e1801ba39628195003e62cd1aed18ec76cbf505f34ce1d2ccc0604b2e4ec6", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling x86 v0.52.0 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking bit_field v0.10.2 [INFO] [stderr] Checking hash32 v0.2.1 [INFO] [stderr] Checking raw-cpuid v10.7.0 [INFO] [stderr] Checking termcodes v0.0.1 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking klogger v0.0.16 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:275:20 [INFO] [stdout] | [INFO] [stdout] 275 | parse_args(&mut LOGGER.filter, args); [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)]` on by default [INFO] [stdout] help: use `&raw mut` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 275 | parse_args(&raw mut LOGGER.filter, args); [INFO] [stdout] | ~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:25 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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] help: use `&raw const` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&raw const LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [INFO] [stdout] | ~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:62 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:275:20 [INFO] [stdout] | [INFO] [stdout] 275 | parse_args(&mut LOGGER.filter, args); [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)]` on by default [INFO] [stdout] help: use `&raw mut` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 275 | parse_args(&raw mut LOGGER.filter, args); [INFO] [stdout] | ~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:25 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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] help: use `&raw const` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&raw const LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [INFO] [stdout] | ~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:62 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s [INFO] running `Command { std: "docker" "inspect" "e56e1801ba39628195003e62cd1aed18ec76cbf505f34ce1d2ccc0604b2e4ec6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e56e1801ba39628195003e62cd1aed18ec76cbf505f34ce1d2ccc0604b2e4ec6", kill_on_drop: false }` [INFO] [stdout] e56e1801ba39628195003e62cd1aed18ec76cbf505f34ce1d2ccc0604b2e4ec6