[INFO] fetching crate sc-tracing 2.0.0-rc5...
[INFO] checking sc-tracing-2.0.0-rc5 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate sc-tracing 2.0.0-rc5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate sc-tracing 2.0.0-rc5 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sc-tracing 2.0.0-rc5
[INFO] finished tweaking crates.io crate sc-tracing 2.0.0-rc5
[INFO] tweaked toml for crates.io crate sc-tracing 2.0.0-rc5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c864f3d7488d8562c5975255b7cf7ebb4a95e5fa2207bce1779795828545fcd
[INFO] running `Command { std: "docker" "start" "-a" "0c864f3d7488d8562c5975255b7cf7ebb4a95e5fa2207bce1779795828545fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c864f3d7488d8562c5975255b7cf7ebb4a95e5fa2207bce1779795828545fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c864f3d7488d8562c5975255b7cf7ebb4a95e5fa2207bce1779795828545fcd", kill_on_drop: false }`
[INFO] [stdout] 0c864f3d7488d8562c5975255b7cf7ebb4a95e5fa2207bce1779795828545fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edb2be2d720dc478a56d23d5d9e90d213edd1a7b61ecaa4593a8c8129dee11ff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "edb2be2d720dc478a56d23d5d9e90d213edd1a7b61ecaa4593a8c8129dee11ff", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.4.1
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[INFO] [stderr]    Compiling petgraph v0.5.1
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[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tracing-attributes v0.1.10
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling libp2p-core-derive v0.20.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking asn1_der v0.6.3
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[INFO] [stderr]     Checking wasm-bindgen v0.2.67
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[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.17
[INFO] [stderr]    Compiling libp2p-core v0.20.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking futures v0.3.5
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[INFO] [stderr]     Checking rw-stream-sink v0.2.1
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[INFO] [stderr]     Checking async-tls v0.8.0
[INFO] [stderr]     Checking soketto v0.4.1
[INFO] [stderr]     Checking sp-tracing v2.0.0-rc5
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.4
[INFO] [stderr]     Checking parity-multiaddr v0.9.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking libp2p-websocket v0.21.1
[INFO] [stderr]     Checking libp2p-swarm v0.20.1
[INFO] [stderr]     Checking libp2p-wasm-ext v0.20.1
[INFO] [stderr]     Checking libp2p-tcp v0.20.0
[INFO] [stderr]     Checking libp2p-dns v0.20.0
[INFO] [stderr]     Checking libp2p v0.22.0
[INFO] [stderr]     Checking sc-telemetry v2.0.0-rc5
[INFO] [stderr]     Checking sc-tracing v2.0.0-rc5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tracing`
[INFO] [stdout]    --> src/lib.rs:431:14
[INFO] [stdout]     |
[INFO] [stdout] 431 |         let span = tracing::info_span!(target: "test_target", "test_span1");
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared type or module `tracing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tracing`
[INFO] [stdout]    --> src/lib.rs:453:14
[INFO] [stdout]     |
[INFO] [stdout] 453 |         let span = tracing::info_span!(
[INFO] [stdout]     |                    ^^^^^^^ use of undeclared type or module `tracing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tracing`
[INFO] [stdout]    --> src/lib.rs:430:20
[INFO] [stdout]     |
[INFO] [stdout] 430 |         let _sub_guard = tracing::subscriber::set_default(sub);
[INFO] [stdout]     |                          ^^^^^^^ use of undeclared type or module `tracing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tracing`
[INFO] [stdout]    --> src/lib.rs:448:20
[INFO] [stdout]     |
[INFO] [stdout] 448 |         let _sub_guard = tracing::subscriber::set_default(sub);
[INFO] [stdout]     |                          ^^^^^^^ use of undeclared type or module `tracing`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sc-tracing`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "edb2be2d720dc478a56d23d5d9e90d213edd1a7b61ecaa4593a8c8129dee11ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edb2be2d720dc478a56d23d5d9e90d213edd1a7b61ecaa4593a8c8129dee11ff", kill_on_drop: false }`
[INFO] [stdout] edb2be2d720dc478a56d23d5d9e90d213edd1a7b61ecaa4593a8c8129dee11ff