[INFO] fetching crate traceparent 0.0.3...
[INFO] testing traceparent-0.0.3 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate traceparent 0.0.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate traceparent 0.0.3
[INFO] finished tweaking crates.io crate traceparent 0.0.3
[INFO] tweaked toml for crates.io crate traceparent 0.0.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate traceparent 0.0.3 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding fastrand v1.9.0 (available: v2.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4937b6d8f0ec08c3991c2469ad601cecc50d2798e46cc567be3a276d0d323979
[INFO] running `Command { std: "docker" "start" "-a" "4937b6d8f0ec08c3991c2469ad601cecc50d2798e46cc567be3a276d0d323979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4937b6d8f0ec08c3991c2469ad601cecc50d2798e46cc567be3a276d0d323979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4937b6d8f0ec08c3991c2469ad601cecc50d2798e46cc567be3a276d0d323979", kill_on_drop: false }`
[INFO] [stdout] 4937b6d8f0ec08c3991c2469ad601cecc50d2798e46cc567be3a276d0d323979
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b5b77ff7a06de1f87f525f8ea9454278aee0407329088f5b8f1d1cfa12a93d1
[INFO] running `Command { std: "docker" "start" "-a" "8b5b77ff7a06de1f87f525f8ea9454278aee0407329088f5b8f1d1cfa12a93d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling traceparent v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `soft_unstable` has been removed: the general soft-unstable mechanism has been removed
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     soft_unstable
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "8b5b77ff7a06de1f87f525f8ea9454278aee0407329088f5b8f1d1cfa12a93d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5b77ff7a06de1f87f525f8ea9454278aee0407329088f5b8f1d1cfa12a93d1", kill_on_drop: false }`
[INFO] [stdout] 8b5b77ff7a06de1f87f525f8ea9454278aee0407329088f5b8f1d1cfa12a93d1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27a31edcbf6de044b44932b7d8de6e411818efe9a4a762afd4b700cbde3a7405
[INFO] running `Command { std: "docker" "start" "-a" "27a31edcbf6de044b44932b7d8de6e411818efe9a4a762afd4b700cbde3a7405", kill_on_drop: false }`
[INFO] [stdout] warning: lint `soft_unstable` has been removed: the general soft-unstable mechanism has been removed
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     soft_unstable
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling traceparent v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `soft_unstable` has been removed: the general soft-unstable mechanism has been removed
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     soft_unstable
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "27a31edcbf6de044b44932b7d8de6e411818efe9a4a762afd4b700cbde3a7405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a31edcbf6de044b44932b7d8de6e411818efe9a4a762afd4b700cbde3a7405", kill_on_drop: false }`
[INFO] [stdout] 27a31edcbf6de044b44932b7d8de6e411818efe9a4a762afd4b700cbde3a7405
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79952a61d22c5ac566c28a7d79d8f8ddc02b9ab8eb9cb4312ae12a6d9222b52f
[INFO] running `Command { std: "docker" "start" "-a" "79952a61d22c5ac566c28a7d79d8f8ddc02b9ab8eb9cb4312ae12a6d9222b52f", kill_on_drop: false }`
[INFO] [stderr] warning: lint `soft_unstable` has been removed: the general soft-unstable mechanism has been removed
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stdout] running 5 tests
[INFO] [stderr]    |
[INFO] [stdout] test test::can_parse ... ok
[INFO] [stderr] 11 |     soft_unstable
[INFO] [stdout] test test::child_create ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stdout] test test::child_sampled_passing ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test::child_sample_wont_affect_parent ... ok
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] test test::sampled ... ok
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `traceparent` (lib) generated 1 warning
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: `traceparent` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/traceparent-6b76746d1f082995)
[INFO] [stderr]    Doc-tests traceparent
[INFO] [stderr] warning: lint `soft_unstable` has been removed: the general soft-unstable mechanism has been removed
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     soft_unstable
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "79952a61d22c5ac566c28a7d79d8f8ddc02b9ab8eb9cb4312ae12a6d9222b52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79952a61d22c5ac566c28a7d79d8f8ddc02b9ab8eb9cb4312ae12a6d9222b52f", kill_on_drop: false }`
[INFO] [stdout] 79952a61d22c5ac566c28a7d79d8f8ddc02b9ab8eb9cb4312ae12a6d9222b52f