[INFO] cloning repository https://github.com/CjS77/tokio-async-await-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CjS77/tokio-async-await-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2e2ab5bbbe33835d7cace7014f2b1e3cc9c27fdf [INFO] checking CjS77/tokio-async-await-examples against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CjS77/tokio-async-await-examples on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CjS77/tokio-async-await-examples [INFO] finished tweaking git repo https://github.com/CjS77/tokio-async-await-examples [INFO] tweaked toml for git repo https://github.com/CjS77/tokio-async-await-examples written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/CjS77/tokio-async-await-examples already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-io v0.2.0-alpha.4 [INFO] [stderr] Downloaded tracing-core v0.1.5 [INFO] [stderr] Downloaded tokio-codec v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-fs v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-macros v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-net v0.2.0-alpha.4 [INFO] [stderr] Downloaded tokio-timer v0.3.0-alpha.4 [INFO] [stderr] Downloaded tokio v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-sync v0.2.0-alpha.4 [INFO] [stderr] Downloaded proc-macro2 v1.0.3 [INFO] [stderr] Downloaded tracing-attributes v0.1.2 [INFO] [stderr] Downloaded tracing v0.1.8 [INFO] [stderr] Downloaded tokio-executor v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b84f53bf1ffe9c0b8b471846d01420173c25087aa29c9591052cd90068c7396 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7b84f53bf1ffe9c0b8b471846d01420173c25087aa29c9591052cd90068c7396", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b84f53bf1ffe9c0b8b471846d01420173c25087aa29c9591052cd90068c7396", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b84f53bf1ffe9c0b8b471846d01420173c25087aa29c9591052cd90068c7396", kill_on_drop: false }` [INFO] [stdout] 7b84f53bf1ffe9c0b8b471846d01420173c25087aa29c9591052cd90068c7396 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 47a9f691481fa61807a3f272ca9e6836dc49a7284eac2890e1bfd08725030cf7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "47a9f691481fa61807a3f272ca9e6836dc49a7284eac2890e1bfd08725030cf7", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro2 v1.0.3 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking lock_api v0.3.1 [INFO] [stderr] Checking tracing-core v0.1.5 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking arrayvec v0.4.11 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.4 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.4 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-sync v0.2.0-alpha.4 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling tracing-attributes v0.1.2 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.4 [INFO] [stderr] Checking tracing v0.1.8 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.4 [INFO] [stderr] Checking tokio-fs v0.2.0-alpha.4 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.4 [INFO] [stderr] Checking tokio-net v0.2.0-alpha.4 [INFO] [stderr] Checking tokio v0.2.0-alpha.4 [INFO] [stderr] Checking async-await v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 51.60s [INFO] running `Command { std: "docker" "inspect" "47a9f691481fa61807a3f272ca9e6836dc49a7284eac2890e1bfd08725030cf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47a9f691481fa61807a3f272ca9e6836dc49a7284eac2890e1bfd08725030cf7", kill_on_drop: false }` [INFO] [stdout] 47a9f691481fa61807a3f272ca9e6836dc49a7284eac2890e1bfd08725030cf7