[INFO] fetching crate tracing-opentelemetry 0.12.0...
[INFO] checking tracing-opentelemetry-0.12.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate tracing-opentelemetry 0.12.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tracing-opentelemetry 0.12.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-opentelemetry 0.12.0
[INFO] finished tweaking crates.io crate tracing-opentelemetry 0.12.0
[INFO] tweaked toml for crates.io crate tracing-opentelemetry 0.12.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opentelemetry v0.13.0
[INFO] [stderr]   Downloaded integer-encoding v1.1.7
[INFO] [stderr]   Downloaded opentelemetry-jaeger v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61eb61c8d21e19c5b7850b0bfbb116df7bf58382a8469304dc1cbd6e58df0554
[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" "61eb61c8d21e19c5b7850b0bfbb116df7bf58382a8469304dc1cbd6e58df0554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61eb61c8d21e19c5b7850b0bfbb116df7bf58382a8469304dc1cbd6e58df0554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61eb61c8d21e19c5b7850b0bfbb116df7bf58382a8469304dc1cbd6e58df0554", kill_on_drop: false }`
[INFO] [stdout] 61eb61c8d21e19c5b7850b0bfbb116df7bf58382a8469304dc1cbd6e58df0554
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] cd47f25623a73facc8e4c7311c414a9eaafa1dae550ad5aabd08c186260acf59
[INFO] running `Command { std: "docker" "start" "-a" "cd47f25623a73facc8e4c7311c414a9eaafa1dae550ad5aabd08c186260acf59", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking thrift v0.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking opentelemetry v0.13.0
[INFO] [stderr]     Checking opentelemetry-jaeger v0.12.1
[INFO] [stderr]     Checking tracing-opentelemetry v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.23s
[INFO] running `Command { std: "docker" "inspect" "cd47f25623a73facc8e4c7311c414a9eaafa1dae550ad5aabd08c186260acf59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd47f25623a73facc8e4c7311c414a9eaafa1dae550ad5aabd08c186260acf59", kill_on_drop: false }`
[INFO] [stdout] cd47f25623a73facc8e4c7311c414a9eaafa1dae550ad5aabd08c186260acf59