[INFO] fetching crate servant-log 0.1.0... [INFO] checking servant-log-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate servant-log 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate servant-log 0.1.0 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 servant-log 0.1.0 [INFO] finished tweaking crates.io crate servant-log 0.1.0 [INFO] tweaked toml for crates.io crate servant-log 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate servant-log 0.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6309ea2cd3e576032c876ca94106596b54754ce48067139f430be78028556da6 [INFO] running `Command { std: "docker" "start" "-a" "6309ea2cd3e576032c876ca94106596b54754ce48067139f430be78028556da6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6309ea2cd3e576032c876ca94106596b54754ce48067139f430be78028556da6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6309ea2cd3e576032c876ca94106596b54754ce48067139f430be78028556da6", kill_on_drop: false }` [INFO] [stdout] 6309ea2cd3e576032c876ca94106596b54754ce48067139f430be78028556da6 [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 -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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fa66285823ee6e24afcf48247d705aa15f0c2e1d7ab9d2248f1b2db83113aa1 [INFO] running `Command { std: "docker" "start" "-a" "5fa66285823ee6e24afcf48247d705aa15f0c2e1d7ab9d2248f1b2db83113aa1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling derivative v1.0.3 [INFO] [stderr] Checking ring-channel v0.7.0 [INFO] [stderr] Checking servant-log v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/ring_logger/logger.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | assert!(SENDER.is_none()); [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/ring_logger/logger.rs:94:40 [INFO] [stdout] | [INFO] [stdout] 94 | if let Some(tx) = unsafe { SENDER.as_mut() } { [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 shared reference to mutable static is discouraged [INFO] [stdout] --> src/ring_logger/logger.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | assert!(SENDER.is_none()); [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/ring_logger/logger.rs:94:40 [INFO] [stdout] | [INFO] [stdout] 94 | if let Some(tx) = unsafe { SENDER.as_mut() } { [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s [INFO] running `Command { std: "docker" "inspect" "5fa66285823ee6e24afcf48247d705aa15f0c2e1d7ab9d2248f1b2db83113aa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fa66285823ee6e24afcf48247d705aa15f0c2e1d7ab9d2248f1b2db83113aa1", kill_on_drop: false }` [INFO] [stdout] 5fa66285823ee6e24afcf48247d705aa15f0c2e1d7ab9d2248f1b2db83113aa1