[INFO] fetching crate tracing-setup 0.3.6...
[INFO] checking tracing-setup-0.3.6 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate tracing-setup 0.3.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tracing-setup 0.3.6 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-setup 0.3.6
[INFO] finished tweaking crates.io crate tracing-setup 0.3.6
[INFO] tweaked toml for crates.io crate tracing-setup 0.3.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] [stderr]       Adding matchers v0.1.0 (latest: v0.2.0)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.7)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.4)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded traced-test v0.3.6
[INFO] [stderr]   Downloaded export-magic v0.3.6
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e629cb6d7aefc483f326f39427e7b2a9e5af25496249b855aa3f9dc3a53fefc
[INFO] running `Command { std: "docker" "start" "-a" "9e629cb6d7aefc483f326f39427e7b2a9e5af25496249b855aa3f9dc3a53fefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e629cb6d7aefc483f326f39427e7b2a9e5af25496249b855aa3f9dc3a53fefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e629cb6d7aefc483f326f39427e7b2a9e5af25496249b855aa3f9dc3a53fefc", kill_on_drop: false }`
[INFO] [stdout] 9e629cb6d7aefc483f326f39427e7b2a9e5af25496249b855aa3f9dc3a53fefc
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3622556c7dcbb9b725d6854fa529154fe8c26879cb533bbbdaed7dc1475bc067
[INFO] running `Command { std: "docker" "start" "-a" "3622556c7dcbb9b725d6854fa529154fe8c26879cb533bbbdaed7dc1475bc067", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling export-magic v0.3.6
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling traced-test v0.3.6
[INFO] [stderr]     Checking tracing-setup v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/buffered_layer.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let metadata = event.metadata();
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/buffered_layer.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     let metadata = event.metadata();
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/buffered_layer.rs:104:52
[INFO] [stdout]     |
[INFO] [stdout] 104 |                         fn record_debug(&mut self, field: &tracing::field::Field, value: &dyn std::fmt::Debug) {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]    --> src/buffered_layer.rs:104:52
[INFO] [stdout]     |
[INFO] [stdout] 104 |                         fn record_debug(&mut self, field: &tracing::field::Field, value: &dyn std::fmt::Debug) {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `FullWithHeader` and `LogLineAndContents` are never constructed
[INFO] [stdout]   --> src/buffered_layer.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub enum EventPrintType {
[INFO] [stdout]    |                  -------------- variants in this enum
[INFO] [stdout] 45 |             FullWithHeader,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 46 |             LogLineAndContents,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `FullWithHeader` and `LogLineAndContents` are never constructed
[INFO] [stdout]   --> src/buffered_layer.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub enum EventPrintType {
[INFO] [stdout]    |                  -------------- variants in this enum
[INFO] [stdout] 45 |             FullWithHeader,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 46 |             LogLineAndContents,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "3622556c7dcbb9b725d6854fa529154fe8c26879cb533bbbdaed7dc1475bc067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3622556c7dcbb9b725d6854fa529154fe8c26879cb533bbbdaed7dc1475bc067", kill_on_drop: false }`
[INFO] [stdout] 3622556c7dcbb9b725d6854fa529154fe8c26879cb533bbbdaed7dc1475bc067