[INFO] fetching crate tracing-rtt 0.1.1...
[INFO] building tracing-rtt-0.1.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate tracing-rtt 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tracing-rtt 0.1.1
[INFO] finished tweaking crates.io crate tracing-rtt 0.1.1
[INFO] tweaked toml for crates.io crate tracing-rtt 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-rtt 0.1.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding heapless v0.8.0 (available: v0.9.1)
[INFO] [stderr]       Adding rtt-target v0.5.0 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded rtt-target v0.5.0
[INFO] [stderr]   Downloaded heapless v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1442858769b82f220c66417bc44e129c074a7f0a1829c2d202e1a22e0137fa2
[INFO] running `Command { std: "docker" "start" "-a" "f1442858769b82f220c66417bc44e129c074a7f0a1829c2d202e1a22e0137fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1442858769b82f220c66417bc44e129c074a7f0a1829c2d202e1a22e0137fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1442858769b82f220c66417bc44e129c074a7f0a1829c2d202e1a22e0137fa2", kill_on_drop: false }`
[INFO] [stdout] f1442858769b82f220c66417bc44e129c074a7f0a1829c2d202e1a22e0137fa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcf1aa9e1f1f921969b8fe89c788d71e95fd0e52440498918ecf18ed460428f0
[INFO] running `Command { std: "docker" "start" "-a" "dcf1aa9e1f1f921969b8fe89c788d71e95fd0e52440498918ecf18ed460428f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling rtt-target v0.5.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-rtt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "dcf1aa9e1f1f921969b8fe89c788d71e95fd0e52440498918ecf18ed460428f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf1aa9e1f1f921969b8fe89c788d71e95fd0e52440498918ecf18ed460428f0", kill_on_drop: false }`
[INFO] [stdout] dcf1aa9e1f1f921969b8fe89c788d71e95fd0e52440498918ecf18ed460428f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 073a3af0323aa965a34d4bc58e51ae37b0d6fdb7b1fa9cd9a6a3dd2bb07bef34
[INFO] running `Command { std: "docker" "start" "-a" "073a3af0323aa965a34d4bc58e51ae37b0d6fdb7b1fa9cd9a6a3dd2bb07bef34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling tracing-rtt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "073a3af0323aa965a34d4bc58e51ae37b0d6fdb7b1fa9cd9a6a3dd2bb07bef34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073a3af0323aa965a34d4bc58e51ae37b0d6fdb7b1fa9cd9a6a3dd2bb07bef34", kill_on_drop: false }`
[INFO] [stdout] 073a3af0323aa965a34d4bc58e51ae37b0d6fdb7b1fa9cd9a6a3dd2bb07bef34