[INFO] cloning repository https://github.com/brock-ff/kafka-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brock-ff/kafka-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrock-ff%2Fkafka-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrock-ff%2Fkafka-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 712baeed43cf9e43f52b95369291cce1e653c80b
[INFO] checking brock-ff/kafka-async against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrock-ff%2Fkafka-async" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brock-ff/kafka-async 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 git repo https://github.com/brock-ff/kafka-async
[INFO] finished tweaking git repo https://github.com/brock-ff/kafka-async
[INFO] tweaked toml for git repo https://github.com/brock-ff/kafka-async written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/brock-ff/kafka-async already has a lockfile, it will not be regenerated
[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 proc-macro-crate v0.1.4
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.16
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded pin-project-internal v0.4.22
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded pin-project v0.4.22
[INFO] [stderr]   Downloaded rdkafka v0.23.1
[INFO] [stderr]   Downloaded tokio v0.2.21
[INFO] [stderr]   Downloaded rdkafka-sys v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 57959ac21fa29c2bd0de675a52b692914e3cbf3b491cc4ff4d8fe02e4ddcb013
[INFO] running `Command { std: "docker" "start" "-a" "57959ac21fa29c2bd0de675a52b692914e3cbf3b491cc4ff4d8fe02e4ddcb013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57959ac21fa29c2bd0de675a52b692914e3cbf3b491cc4ff4d8fe02e4ddcb013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57959ac21fa29c2bd0de675a52b692914e3cbf3b491cc4ff4d8fe02e4ddcb013", kill_on_drop: false }`
[INFO] [stdout] 57959ac21fa29c2bd0de675a52b692914e3cbf3b491cc4ff4d8fe02e4ddcb013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f02a79ab980c570ecc977f1331ea47b36ad3d0a62349667ef1dfe8d9c6a92676
[INFO] running `Command { std: "docker" "start" "-a" "f02a79ab980c570ecc977f1331ea47b36ad3d0a62349667ef1dfe8d9c6a92676", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rdkafka-sys v1.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking rdkafka v0.23.1
[INFO] [stderr]     Checking kafka-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.00s
[INFO] running `Command { std: "docker" "inspect" "f02a79ab980c570ecc977f1331ea47b36ad3d0a62349667ef1dfe8d9c6a92676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02a79ab980c570ecc977f1331ea47b36ad3d0a62349667ef1dfe8d9c6a92676", kill_on_drop: false }`
[INFO] [stdout] f02a79ab980c570ecc977f1331ea47b36ad3d0a62349667ef1dfe8d9c6a92676
[INFO] checking brock-ff/kafka-async against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrock-ff%2Fkafka-async" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brock-ff/kafka-async on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brock-ff/kafka-async
[INFO] finished tweaking git repo https://github.com/brock-ff/kafka-async
[INFO] tweaked toml for git repo https://github.com/brock-ff/kafka-async written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/brock-ff/kafka-async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f55d68d3f19b2ccaa3d71463a8347d04129bacbe8c5bf8681683c663bcd4a85f
[INFO] running `Command { std: "docker" "start" "-a" "f55d68d3f19b2ccaa3d71463a8347d04129bacbe8c5bf8681683c663bcd4a85f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f55d68d3f19b2ccaa3d71463a8347d04129bacbe8c5bf8681683c663bcd4a85f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55d68d3f19b2ccaa3d71463a8347d04129bacbe8c5bf8681683c663bcd4a85f", kill_on_drop: false }`
[INFO] [stdout] f55d68d3f19b2ccaa3d71463a8347d04129bacbe8c5bf8681683c663bcd4a85f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a8518c86b39dd9221c0644698ae399dea1ff29bab0c8c4f4450071276554c3b
[INFO] running `Command { std: "docker" "start" "-a" "0a8518c86b39dd9221c0644698ae399dea1ff29bab0c8c4f4450071276554c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling rdkafka-sys v1.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking rdkafka v0.23.1
[INFO] [stderr]     Checking kafka-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.19s
[INFO] running `Command { std: "docker" "inspect" "0a8518c86b39dd9221c0644698ae399dea1ff29bab0c8c4f4450071276554c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8518c86b39dd9221c0644698ae399dea1ff29bab0c8c4f4450071276554c3b", kill_on_drop: false }`
[INFO] [stdout] 0a8518c86b39dd9221c0644698ae399dea1ff29bab0c8c4f4450071276554c3b