[INFO] cloning repository https://github.com/bryanburgers/tokio-hang-reproduction
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bryanburgers/tokio-hang-reproduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftokio-hang-reproduction", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftokio-hang-reproduction'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd3a8d23a8b10ff3e253847bce26dd28377c9314
[INFO] checking bryanburgers/tokio-hang-reproduction against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Ftokio-hang-reproduction" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bryanburgers/tokio-hang-reproduction on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bryanburgers/tokio-hang-reproduction
[INFO] finished tweaking git repo https://github.com/bryanburgers/tokio-hang-reproduction
[INFO] tweaked toml for git repo https://github.com/bryanburgers/tokio-hang-reproduction written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/bryanburgers/tokio-hang-reproduction already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/awslabs/aws-lambda-rust-runtime`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded serde_derive v1.0.105
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] [stderr]   Downloaded tokio v0.2.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdb18b2a9bda5687054c437385a7e0e946fff713e7d8614213212479441568a8
[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" "cdb18b2a9bda5687054c437385a7e0e946fff713e7d8614213212479441568a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb18b2a9bda5687054c437385a7e0e946fff713e7d8614213212479441568a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb18b2a9bda5687054c437385a7e0e946fff713e7d8614213212479441568a8", kill_on_drop: false }`
[INFO] [stdout] cdb18b2a9bda5687054c437385a7e0e946fff713e7d8614213212479441568a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c6d5101035b9bf679635fa24bbd45fc7b39249964f600f7256ca9e85c58becf
[INFO] running `Command { std: "docker" "start" "-a" "0c6d5101035b9bf679635fa24bbd45fc7b39249964f600f7256ca9e85c58becf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling lambda-attributes v0.1.0 (https://github.com/awslabs/aws-lambda-rust-runtime#ebc5474b)
[INFO] [stderr]     Checking tokio v0.2.14
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking serde v1.0.105
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking lambda v0.1.0 (https://github.com/awslabs/aws-lambda-rust-runtime#ebc5474b)
[INFO] [stderr]     Checking tokio-hang-reproduction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "0c6d5101035b9bf679635fa24bbd45fc7b39249964f600f7256ca9e85c58becf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6d5101035b9bf679635fa24bbd45fc7b39249964f600f7256ca9e85c58becf", kill_on_drop: false }`
[INFO] [stdout] 0c6d5101035b9bf679635fa24bbd45fc7b39249964f600f7256ca9e85c58becf