[INFO] cloning repository https://github.com/cpcloud/tracing_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cpcloud/tracing_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Ftracing_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Ftracing_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16e680c39ad46d7c78c8b37a522545395a482f7d
[INFO] testing cpcloud/tracing_example against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcpcloud%2Ftracing_example" "/workspace/builds/worker-82/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-82/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cpcloud/tracing_example on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cpcloud/tracing_example
[INFO] finished tweaking git repo https://github.com/cpcloud/tracing_example
[INFO] tweaked toml for git repo https://github.com/cpcloud/tracing_example written to /workspace/builds/worker-82/source/Cargo.toml
[INFO] crate git repo https://github.com/cpcloud/tracing_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54e0504663d5a414636b1a1a2dac9b4bfd563cb17474b29f5488848d5a455fef
[INFO] running `Command { std: "docker" "start" "-a" "54e0504663d5a414636b1a1a2dac9b4bfd563cb17474b29f5488848d5a455fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54e0504663d5a414636b1a1a2dac9b4bfd563cb17474b29f5488848d5a455fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e0504663d5a414636b1a1a2dac9b4bfd563cb17474b29f5488848d5a455fef", kill_on_drop: false }`
[INFO] [stdout] 54e0504663d5a414636b1a1a2dac9b4bfd563cb17474b29f5488848d5a455fef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ae784202d3344e1511a502fbcb32ffbe302d55bc59fe57f85d4ddafd6436759
[INFO] running `Command { std: "docker" "start" "-a" "3ae784202d3344e1511a502fbcb32ffbe302d55bc59fe57f85d4ddafd6436759", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling rand v0.8.3
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[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-stream-impl v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling async-stream v0.3.1
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling tonic-build v0.4.2
[INFO] [stderr]    Compiling tokio-stream v0.1.6
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling opentelemetry-otlp v0.6.0
[INFO] [stderr]    Compiling opentelemetry v0.13.0
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling tower v0.4.7
[INFO] [stderr]    Compiling tracing-opentelemetry v0.12.0
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.5.0
[INFO] [stderr]    Compiling opentelemetry-jaeger v0.12.1
[INFO] [stderr]    Compiling hyper v0.14.7
[INFO] [stderr]    Compiling tonic v0.4.3
[INFO] [stderr]    Compiling tracing_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.13s
[INFO] running `Command { std: "docker" "inspect" "3ae784202d3344e1511a502fbcb32ffbe302d55bc59fe57f85d4ddafd6436759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae784202d3344e1511a502fbcb32ffbe302d55bc59fe57f85d4ddafd6436759", kill_on_drop: false }`
[INFO] [stdout] 3ae784202d3344e1511a502fbcb32ffbe302d55bc59fe57f85d4ddafd6436759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf8d9a90a2cc319a4b7d7368d7f0c027f482ec5f58c92fcf42b4db99154bac75
[INFO] running `Command { std: "docker" "start" "-a" "bf8d9a90a2cc319a4b7d7368d7f0c027f482ec5f58c92fcf42b4db99154bac75", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "bf8d9a90a2cc319a4b7d7368d7f0c027f482ec5f58c92fcf42b4db99154bac75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8d9a90a2cc319a4b7d7368d7f0c027f482ec5f58c92fcf42b4db99154bac75", kill_on_drop: false }`
[INFO] [stdout] bf8d9a90a2cc319a4b7d7368d7f0c027f482ec5f58c92fcf42b4db99154bac75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f756772e3b6d6b05186d4fede5fd844b1922d37b051436feeb988f4c5ded6d22
[INFO] running `Command { std: "docker" "start" "-a" "f756772e3b6d6b05186d4fede5fd844b1922d37b051436feeb988f4c5ded6d22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.26s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracing_example-90fd76bc013d3b40)
[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" "f756772e3b6d6b05186d4fede5fd844b1922d37b051436feeb988f4c5ded6d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f756772e3b6d6b05186d4fede5fd844b1922d37b051436feeb988f4c5ded6d22", kill_on_drop: false }`
[INFO] [stdout] f756772e3b6d6b05186d4fede5fd844b1922d37b051436feeb988f4c5ded6d22