[INFO] fetching crate tower-opentelemetry 0.2.0...
[INFO] checking tower-opentelemetry-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tower-opentelemetry 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tower-opentelemetry 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-opentelemetry 0.2.0
[INFO] finished tweaking crates.io crate tower-opentelemetry 0.2.0
[INFO] tweaked toml for crates.io crate tower-opentelemetry 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding ntapi v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding opentelemetry v0.17.0 (latest: v0.22.0)
[INFO] [stderr]       Adding opentelemetry-semantic-conventions v0.9.0 (latest: v0.14.0)
[INFO] [stderr]       Adding sysinfo v0.23.13 (latest: v0.30.8)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sysinfo v0.23.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cd901d7b12392378c22c7b7dd785168d71d7805d6577e1caacfd6eef4e4b890
[INFO] running `Command { std: "docker" "start" "-a" "7cd901d7b12392378c22c7b7dd785168d71d7805d6577e1caacfd6eef4e4b890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cd901d7b12392378c22c7b7dd785168d71d7805d6577e1caacfd6eef4e4b890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd901d7b12392378c22c7b7dd785168d71d7805d6577e1caacfd6eef4e4b890", kill_on_drop: false }`
[INFO] [stdout] 7cd901d7b12392378c22c7b7dd785168d71d7805d6577e1caacfd6eef4e4b890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c6d5bc9891b078c0f637a09799202580f7506d3a323abda0b1969d715b75fe6
[INFO] running `Command { std: "docker" "start" "-a" "0c6d5bc9891b078c0f637a09799202580f7506d3a323abda0b1969d715b75fe6", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling sysinfo v0.23.13
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking opentelemetry v0.17.0
[INFO] [stderr]     Checking opentelemetry-semantic-conventions v0.9.0
[INFO] [stderr]     Checking tower-opentelemetry v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "0c6d5bc9891b078c0f637a09799202580f7506d3a323abda0b1969d715b75fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6d5bc9891b078c0f637a09799202580f7506d3a323abda0b1969d715b75fe6", kill_on_drop: false }`
[INFO] [stdout] 0c6d5bc9891b078c0f637a09799202580f7506d3a323abda0b1969d715b75fe6