[INFO] fetching crate tracing-core 0.1.34...
[INFO] building tracing-core-0.1.34 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate tracing-core 0.1.34 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tracing-core 0.1.34
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-core 0.1.34
[INFO] tweaked toml for crates.io crate tracing-core 0.1.34 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-core 0.1.34 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-core 0.1.34 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e97c87fe8dd76d9dedff1ecf4fae3fd68a664ddc0d7f261587c7e044260fa582
[INFO] running `Command { std: "docker" "start" "-a" "e97c87fe8dd76d9dedff1ecf4fae3fd68a664ddc0d7f261587c7e044260fa582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97c87fe8dd76d9dedff1ecf4fae3fd68a664ddc0d7f261587c7e044260fa582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97c87fe8dd76d9dedff1ecf4fae3fd68a664ddc0d7f261587c7e044260fa582", kill_on_drop: false }`
[INFO] [stdout] e97c87fe8dd76d9dedff1ecf4fae3fd68a664ddc0d7f261587c7e044260fa582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ef2025061f13196e365f696d8421524b8001274561868c633cc81e1d4d8d9d74
[INFO] running `Command { std: "docker" "start" "-a" "ef2025061f13196e365f696d8421524b8001274561868c633cc81e1d4d8d9d74", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.34 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ef2025061f13196e365f696d8421524b8001274561868c633cc81e1d4d8d9d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef2025061f13196e365f696d8421524b8001274561868c633cc81e1d4d8d9d74", kill_on_drop: false }`
[INFO] [stdout] ef2025061f13196e365f696d8421524b8001274561868c633cc81e1d4d8d9d74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d4227078b20cea186e67226674e252bfb56931eede3404955ec36ecddd9db642
[INFO] running `Command { std: "docker" "start" "-a" "d4227078b20cea186e67226674e252bfb56931eede3404955ec36ecddd9db642", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.34 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/field.rs:1238:63
[INFO] [stdout]      |
[INFO] [stdout] 1238 |             fn record_debug(&mut self, field: &Field, _: &dyn (crate::stdlib::fmt::Debug)) {
[INFO] [stdout]      |                                                               ^                         ^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:144:5
[INFO] [stdout]      |
[INFO] [stdout]  144 |     unused_parens,
[INFO] [stdout]      |     ^^^^^^^^^^^^^
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1238 -             fn record_debug(&mut self, field: &Field, _: &dyn (crate::stdlib::fmt::Debug)) {
[INFO] [stdout] 1238 +             fn record_debug(&mut self, field: &Field, _: &dyn crate::stdlib::fmt::Debug) {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/field.rs:1257:63
[INFO] [stdout]      |
[INFO] [stdout] 1257 |             fn record_debug(&mut self, field: &Field, _: &dyn (crate::stdlib::fmt::Debug)) {
[INFO] [stdout]      |                                                               ^                         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1257 -             fn record_debug(&mut self, field: &Field, _: &dyn (crate::stdlib::fmt::Debug)) {
[INFO] [stdout] 1257 +             fn record_debug(&mut self, field: &Field, _: &dyn crate::stdlib::fmt::Debug) {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "d4227078b20cea186e67226674e252bfb56931eede3404955ec36ecddd9db642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4227078b20cea186e67226674e252bfb56931eede3404955ec36ecddd9db642", kill_on_drop: false }`
[INFO] [stdout] d4227078b20cea186e67226674e252bfb56931eede3404955ec36ecddd9db642