[INFO] fetching crate carboncopy-tokio 0.1.4...
[INFO] testing carboncopy-tokio-0.1.4 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate carboncopy-tokio 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate carboncopy-tokio 0.1.4 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] finished tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] tweaked toml for crates.io crate carboncopy-tokio 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dec0e4e4c010af45311689ba1e7475f460da8ec881fae0edde6333e256492bd2
[INFO] running `Command { std: "docker" "start" "-a" "dec0e4e4c010af45311689ba1e7475f460da8ec881fae0edde6333e256492bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dec0e4e4c010af45311689ba1e7475f460da8ec881fae0edde6333e256492bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec0e4e4c010af45311689ba1e7475f460da8ec881fae0edde6333e256492bd2", kill_on_drop: false }`
[INFO] [stdout] dec0e4e4c010af45311689ba1e7475f460da8ec881fae0edde6333e256492bd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d707a734f35ac900bdc50bd18b5f40b73c44a1cf324814f30dde4e3b8019cf9d
[INFO] running `Command { std: "docker" "start" "-a" "d707a734f35ac900bdc50bd18b5f40b73c44a1cf324814f30dde4e3b8019cf9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling carboncopy v0.3.0
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.01s
[INFO] running `Command { std: "docker" "inspect" "d707a734f35ac900bdc50bd18b5f40b73c44a1cf324814f30dde4e3b8019cf9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d707a734f35ac900bdc50bd18b5f40b73c44a1cf324814f30dde4e3b8019cf9d", kill_on_drop: false }`
[INFO] [stdout] d707a734f35ac900bdc50bd18b5f40b73c44a1cf324814f30dde4e3b8019cf9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e4b2e1bf0942fb6cb085b5f4f19a6ce59f80fda612ed68e34878b7b86f2c942
[INFO] running `Command { std: "docker" "start" "-a" "6e4b2e1bf0942fb6cb085b5f4f19a6ce59f80fda612ed68e34878b7b86f2c942", kill_on_drop: false }`
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "6e4b2e1bf0942fb6cb085b5f4f19a6ce59f80fda612ed68e34878b7b86f2c942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4b2e1bf0942fb6cb085b5f4f19a6ce59f80fda612ed68e34878b7b86f2c942", kill_on_drop: false }`
[INFO] [stdout] 6e4b2e1bf0942fb6cb085b5f4f19a6ce59f80fda612ed68e34878b7b86f2c942
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fc42a1f65ca3ec6ad0442fc7a83f2ea334bdf0747fcf5e02ae923b0a57d6079
[INFO] running `Command { std: "docker" "start" "-a" "2fc42a1f65ca3ec6ad0442fc7a83f2ea334bdf0747fcf5e02ae923b0a57d6079", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/carboncopy_tokio-5ec0b48631d70204)
[INFO] [stdout] test tests::overflow_threshold ... ok
[INFO] [stdout] test tests::default_options_dont_panic ... ok
[INFO] [stdout] test tests::no_buffer ... ok
[INFO] [stdout] test tests::flush_err ... ok
[INFO] [stdout] test tests::overflow_flush ... ok
[INFO] [stdout] test tests::timeout_flush ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests carboncopy-tokio
[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" "2fc42a1f65ca3ec6ad0442fc7a83f2ea334bdf0747fcf5e02ae923b0a57d6079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc42a1f65ca3ec6ad0442fc7a83f2ea334bdf0747fcf5e02ae923b0a57d6079", kill_on_drop: false }`
[INFO] [stdout] 2fc42a1f65ca3ec6ad0442fc7a83f2ea334bdf0747fcf5e02ae923b0a57d6079