[INFO] cloning repository https://github.com/anlumo/syncasync [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anlumo/syncasync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fsyncasync", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fsyncasync'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 886452d2eafdcc361a7fed7882757bbb2e7c63d1 [INFO] checking anlumo/syncasync against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fsyncasync" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/anlumo/syncasync 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/anlumo/syncasync [INFO] finished tweaking git repo https://github.com/anlumo/syncasync [INFO] tweaked toml for git repo https://github.com/anlumo/syncasync written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/anlumo/syncasync 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 tokio-sync v0.1.5 [INFO] [stderr] Downloaded tokio-trace-core v0.1.0 [INFO] [stderr] Downloaded tokio v0.1.19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fc740fc632615a0b4a340f6f1947967559a4cebd2cda905f208d593ca211415e [INFO] running `Command { std: "docker" "start" "-a" "fc740fc632615a0b4a340f6f1947967559a4cebd2cda905f208d593ca211415e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc740fc632615a0b4a340f6f1947967559a4cebd2cda905f208d593ca211415e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc740fc632615a0b4a340f6f1947967559a4cebd2cda905f208d593ca211415e", kill_on_drop: false }` [INFO] [stdout] fc740fc632615a0b4a340f6f1947967559a4cebd2cda905f208d593ca211415e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 225801881e3dd2c17ce147ca107dda66c0ce5012daf0a5734d2e2ffb68639245 [INFO] running `Command { std: "docker" "start" "-a" "225801881e3dd2c17ce147ca107dda66c0ce5012daf0a5734d2e2ffb68639245", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking futures v0.1.27 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking tokio-trace-core v0.1.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-sync v0.1.5 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio v0.1.19 [INFO] [stderr] Checking syncasync v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.68s [INFO] running `Command { std: "docker" "inspect" "225801881e3dd2c17ce147ca107dda66c0ce5012daf0a5734d2e2ffb68639245", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "225801881e3dd2c17ce147ca107dda66c0ce5012daf0a5734d2e2ffb68639245", kill_on_drop: false }` [INFO] [stdout] 225801881e3dd2c17ce147ca107dda66c0ce5012daf0a5734d2e2ffb68639245 [INFO] checking anlumo/syncasync against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fsyncasync" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/anlumo/syncasync 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/anlumo/syncasync [INFO] finished tweaking git repo https://github.com/anlumo/syncasync [INFO] tweaked toml for git repo https://github.com/anlumo/syncasync written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/anlumo/syncasync 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] da47da292c694fb645fbeaf3a60a9af8c7511ee1f512cf575fc7f946451fd176 [INFO] running `Command { std: "docker" "start" "-a" "da47da292c694fb645fbeaf3a60a9af8c7511ee1f512cf575fc7f946451fd176", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da47da292c694fb645fbeaf3a60a9af8c7511ee1f512cf575fc7f946451fd176", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da47da292c694fb645fbeaf3a60a9af8c7511ee1f512cf575fc7f946451fd176", kill_on_drop: false }` [INFO] [stdout] da47da292c694fb645fbeaf3a60a9af8c7511ee1f512cf575fc7f946451fd176 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a401e8559edfc95cf7cbe5fe8bc3d64ee6fce7f0b861a9b4a10ba1dec646858d [INFO] running `Command { std: "docker" "start" "-a" "a401e8559edfc95cf7cbe5fe8bc3d64ee6fce7f0b861a9b4a10ba1dec646858d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.55 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking futures v0.1.27 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking tokio-trace-core v0.1.0 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-sync v0.1.5 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio v0.1.19 [INFO] [stderr] Checking syncasync v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.67s [INFO] running `Command { std: "docker" "inspect" "a401e8559edfc95cf7cbe5fe8bc3d64ee6fce7f0b861a9b4a10ba1dec646858d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a401e8559edfc95cf7cbe5fe8bc3d64ee6fce7f0b861a9b4a10ba1dec646858d", kill_on_drop: false }` [INFO] [stdout] a401e8559edfc95cf7cbe5fe8bc3d64ee6fce7f0b861a9b4a10ba1dec646858d