[INFO] fetching crate tracing-rtt 0.1.1...
[INFO] testing tracing-rtt-0.1.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate tracing-rtt 0.1.1 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-rtt 0.1.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63dc7bf9f65c3bb2355ea7845585eebd9c7073d6da2174aeac9f8050716e3d06
[INFO] running `Command { std: "docker" "start" "-a" "63dc7bf9f65c3bb2355ea7845585eebd9c7073d6da2174aeac9f8050716e3d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63dc7bf9f65c3bb2355ea7845585eebd9c7073d6da2174aeac9f8050716e3d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63dc7bf9f65c3bb2355ea7845585eebd9c7073d6da2174aeac9f8050716e3d06", kill_on_drop: false }`
[INFO] [stdout] 63dc7bf9f65c3bb2355ea7845585eebd9c7073d6da2174aeac9f8050716e3d06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2d7fb643d58c28d91de1805cc2e14553701f0f177e99af12c9e5e83baa676a0
[INFO] running `Command { std: "docker" "start" "-a" "a2d7fb643d58c28d91de1805cc2e14553701f0f177e99af12c9e5e83baa676a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling rtt-target v0.5.0
[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 1.78s
[INFO] running `Command { std: "docker" "inspect" "a2d7fb643d58c28d91de1805cc2e14553701f0f177e99af12c9e5e83baa676a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d7fb643d58c28d91de1805cc2e14553701f0f177e99af12c9e5e83baa676a0", kill_on_drop: false }`
[INFO] [stdout] a2d7fb643d58c28d91de1805cc2e14553701f0f177e99af12c9e5e83baa676a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c45e18cb3ea72b2f3acbe0e9f4e29d9334e9c735e95bea398bbc112f83a4aa38
[INFO] running `Command { std: "docker" "start" "-a" "c45e18cb3ea72b2f3acbe0e9f4e29d9334e9c735e95bea398bbc112f83a4aa38", 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 num-conv v0.1.0
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling deranged v0.5.4
[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 25.75s
[INFO] running `Command { std: "docker" "inspect" "c45e18cb3ea72b2f3acbe0e9f4e29d9334e9c735e95bea398bbc112f83a4aa38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c45e18cb3ea72b2f3acbe0e9f4e29d9334e9c735e95bea398bbc112f83a4aa38", kill_on_drop: false }`
[INFO] [stdout] c45e18cb3ea72b2f3acbe0e9f4e29d9334e9c735e95bea398bbc112f83a4aa38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa32c51f2a7da0de26ddc31c0176b2039c8dc1c61b2feec1ac1a8d930789c3f2
[INFO] running `Command { std: "docker" "start" "-a" "aa32c51f2a7da0de26ddc31c0176b2039c8dc1c61b2feec1ac1a8d930789c3f2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_rtt-b663e03d7bca8d42)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing_rtt
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aa32c51f2a7da0de26ddc31c0176b2039c8dc1c61b2feec1ac1a8d930789c3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa32c51f2a7da0de26ddc31c0176b2039c8dc1c61b2feec1ac1a8d930789c3f2", kill_on_drop: false }`
[INFO] [stdout] aa32c51f2a7da0de26ddc31c0176b2039c8dc1c61b2feec1ac1a8d930789c3f2