[INFO] fetching crate tracing-allocations 0.1.0... [INFO] building tracing-allocations-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate tracing-allocations 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate tracing-allocations 0.1.0 [INFO] finished tweaking crates.io crate tracing-allocations 0.1.0 [INFO] tweaked toml for crates.io crate tracing-allocations 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate tracing-allocations 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate tracing-allocations 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded smallvec v1.8.0 [INFO] [stderr] Downloaded tracing-core v0.1.22 [INFO] [stderr] Downloaded tracing-attributes v0.1.19 [INFO] [stderr] Downloaded tracing-log v0.1.2 [INFO] [stderr] Downloaded thread_local v1.1.4 [INFO] [stderr] Downloaded redox_syscall v0.2.11 [INFO] [stderr] Downloaded lock_api v0.4.6 [INFO] [stderr] Downloaded parking_lot_core v0.9.1 [INFO] [stderr] Downloaded pin-project-lite v0.2.8 [INFO] [stderr] Downloaded mio v0.8.0 [INFO] [stderr] Downloaded parking_lot v0.12.0 [INFO] [stderr] Downloaded tracing v0.1.31 [INFO] [stderr] Downloaded ntapi v0.3.7 [INFO] [stderr] Downloaded tracing-subscriber v0.3.9 [INFO] [stderr] Downloaded once_cell v1.10.0 [INFO] [stderr] Downloaded libc v0.2.119 [INFO] [stderr] Downloaded tokio v1.17.0 [INFO] [stderr] Downloaded windows_i686_gnu v0.32.0 [INFO] [stderr] Downloaded windows_x86_64_gnu v0.32.0 [INFO] [stderr] Downloaded windows_aarch64_msvc v0.32.0 [INFO] [stderr] Downloaded windows_i686_msvc v0.32.0 [INFO] [stderr] Downloaded windows_x86_64_msvc v0.32.0 [INFO] [stderr] Downloaded windows-sys v0.32.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1bbe5a8ea1aef46efb359015cd128b4c829139813de7948223b27bb5fd20af60 [INFO] running `Command { std: "docker" "start" "-a" "1bbe5a8ea1aef46efb359015cd128b4c829139813de7948223b27bb5fd20af60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1bbe5a8ea1aef46efb359015cd128b4c829139813de7948223b27bb5fd20af60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1bbe5a8ea1aef46efb359015cd128b4c829139813de7948223b27bb5fd20af60", kill_on_drop: false }` [INFO] [stdout] 1bbe5a8ea1aef46efb359015cd128b4c829139813de7948223b27bb5fd20af60 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0ea4853e2c889cf198163551b85241471452ac8a52dc5ef4579eefe7f6d247ef [INFO] running `Command { std: "docker" "start" "-a" "0ea4853e2c889cf198163551b85241471452ac8a52dc5ef4579eefe7f6d247ef", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling pin-project-lite v0.2.8 [INFO] [stderr] Compiling tracing-core v0.1.22 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Compiling tracing-attributes v0.1.19 [INFO] [stderr] Compiling tracing v0.1.31 [INFO] [stderr] Compiling tracing-allocations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.47s [INFO] running `Command { std: "docker" "inspect" "0ea4853e2c889cf198163551b85241471452ac8a52dc5ef4579eefe7f6d247ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ea4853e2c889cf198163551b85241471452ac8a52dc5ef4579eefe7f6d247ef", kill_on_drop: false }` [INFO] [stdout] 0ea4853e2c889cf198163551b85241471452ac8a52dc5ef4579eefe7f6d247ef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 307f95622efd82e50db92aaa779917cf3ac2ce5ad30c2e65992292a23789871c [INFO] running `Command { std: "docker" "start" "-a" "307f95622efd82e50db92aaa779917cf3ac2ce5ad30c2e65992292a23789871c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling tracing-core v0.1.22 [INFO] [stderr] Compiling lock_api v0.4.6 [INFO] [stderr] Compiling sharded-slab v0.1.4 [INFO] [stderr] Compiling thread_local v1.1.4 [INFO] [stderr] Compiling tracing-log v0.1.2 [INFO] [stderr] Compiling tracing-subscriber v0.3.9 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling socket2 v0.4.4 [INFO] [stderr] Compiling mio v0.8.0 [INFO] [stderr] Compiling parking_lot v0.12.0 [INFO] [stderr] Compiling tracing-attributes v0.1.19 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Compiling tokio v1.17.0 [INFO] [stderr] Compiling tracing v0.1.31 [INFO] [stderr] Compiling tracing-allocations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Instrument` and `trace_span` [INFO] [stdout] --> examples/simple.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use tracing::{trace_span, Instrument}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 16.04s [INFO] running `Command { std: "docker" "inspect" "307f95622efd82e50db92aaa779917cf3ac2ce5ad30c2e65992292a23789871c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "307f95622efd82e50db92aaa779917cf3ac2ce5ad30c2e65992292a23789871c", kill_on_drop: false }` [INFO] [stdout] 307f95622efd82e50db92aaa779917cf3ac2ce5ad30c2e65992292a23789871c