[INFO] fetching crate libhoney-rust 0.1.6...
[INFO] testing libhoney-rust-0.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate libhoney-rust 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libhoney-rust 0.1.6 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libhoney-rust 0.1.6
[INFO] finished tweaking crates.io crate libhoney-rust 0.1.6
[INFO] tweaked toml for crates.io crate libhoney-rust 0.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libhoney-rust 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d646aef58adaef6d9a4a1d9422e4d950ac4e5fd534a974d4273e3cdc91ce3e4d
[INFO] running `Command { std: "docker" "start" "-a" "d646aef58adaef6d9a4a1d9422e4d950ac4e5fd534a974d4273e3cdc91ce3e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d646aef58adaef6d9a4a1d9422e4d950ac4e5fd534a974d4273e3cdc91ce3e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d646aef58adaef6d9a4a1d9422e4d950ac4e5fd534a974d4273e3cdc91ce3e4d", kill_on_drop: false }`
[INFO] [stdout] d646aef58adaef6d9a4a1d9422e4d950ac4e5fd534a974d4273e3cdc91ce3e4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e53a24a8e9afda89846dfe7a19feda3acb0188a0e23106b11e024f69e7fd7ef2
[INFO] running `Command { std: "docker" "start" "-a" "e53a24a8e9afda89846dfe7a19feda3acb0188a0e23106b11e024f69e7fd7ef2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.19.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tokio-rustls v0.14.1
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling hyper-rustls v0.21.0
[INFO] [stderr]    Compiling reqwest v0.10.8
[INFO] [stderr]    Compiling libhoney-rust v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.85s
[INFO] running `Command { std: "docker" "inspect" "e53a24a8e9afda89846dfe7a19feda3acb0188a0e23106b11e024f69e7fd7ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53a24a8e9afda89846dfe7a19feda3acb0188a0e23106b11e024f69e7fd7ef2", kill_on_drop: false }`
[INFO] [stdout] e53a24a8e9afda89846dfe7a19feda3acb0188a0e23106b11e024f69e7fd7ef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7be0c800c4157ce91aded5ba024fb5a105696db1ac1c75d6de255dcd14074e7e
[INFO] running `Command { std: "docker" "start" "-a" "7be0c800c4157ce91aded5ba024fb5a105696db1ac1c75d6de255dcd14074e7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling assert-json-diff v1.1.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling env_logger v0.8.1
[INFO] [stderr]    Compiling mockito v0.28.0
[INFO] [stderr]    Compiling libhoney-rust v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.92s
[INFO] running `Command { std: "docker" "inspect" "7be0c800c4157ce91aded5ba024fb5a105696db1ac1c75d6de255dcd14074e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be0c800c4157ce91aded5ba024fb5a105696db1ac1c75d6de255dcd14074e7e", kill_on_drop: false }`
[INFO] [stdout] 7be0c800c4157ce91aded5ba024fb5a105696db1ac1c75d6de255dcd14074e7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca8e26761393f8cbe2574b4ecaf63f5311e69c8e95a365d8628b104a006a0b8d
[INFO] running `Command { std: "docker" "start" "-a" "ca8e26761393f8cbe2574b4ecaf63f5311e69c8e95a365d8628b104a006a0b8d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libhoney-75abea38ac5b4f0d)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test builder::tests::test_builder_add ... ok
[INFO] [stdout] test builder::tests::test_builder_add_conflict ... ok
[INFO] [stdout] test event::tests::test_add ... ok
[INFO] [stdout] test tests::test_init ... ok
[INFO] [stdout] test transmission::tests::test_defaults ... ok
[INFO] [stdout] test client::tests::test_send_without_api_key ... ok
[INFO] [stdout] test transmission::tests::test_modifiable_defaults ... ok
[INFO] [stdout] test client::tests::test_init ... ok
[INFO] [stdout] test client::tests::test_flush ... ok
[INFO] [stdout] test event::tests::test_empty ... ok
[INFO] [stdout] test event::tests::test_send ... ok
[INFO] [stdout] test transmission::tests::test_bad_response ... ok
[INFO] [stdout] test transmission::tests::test_multiple_batches ... ok
[INFO] [stdout] test transmission::tests::test_metadata ... ok
[INFO] [stdout] test transmission::tests::test_responses ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libhoney
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/lib.rs - (line 105) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca8e26761393f8cbe2574b4ecaf63f5311e69c8e95a365d8628b104a006a0b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8e26761393f8cbe2574b4ecaf63f5311e69c8e95a365d8628b104a006a0b8d", kill_on_drop: false }`
[INFO] [stdout] ca8e26761393f8cbe2574b4ecaf63f5311e69c8e95a365d8628b104a006a0b8d