[INFO] cloning repository https://github.com/hawkw/tokio-deadlock-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawkw/tokio-deadlock-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Ftokio-deadlock-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Ftokio-deadlock-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a7f91e84e3cb39629c1026d8de1a7b4b83fde18
[INFO] checking hawkw/tokio-deadlock-repro against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawkw%2Ftokio-deadlock-repro" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hawkw/tokio-deadlock-repro on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hawkw/tokio-deadlock-repro
[INFO] finished tweaking git repo https://github.com/hawkw/tokio-deadlock-repro
[INFO] tweaked toml for git repo https://github.com/hawkw/tokio-deadlock-repro written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/hawkw/tokio-deadlock-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/tokio-rs/tokio.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.5.12
[INFO] [stderr]   Downloaded parking_lot v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87400d9f00d5bf224b9f9c16f5fd13f1c34afbd5e0c66fb7e728729f41df3720
[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" "87400d9f00d5bf224b9f9c16f5fd13f1c34afbd5e0c66fb7e728729f41df3720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87400d9f00d5bf224b9f9c16f5fd13f1c34afbd5e0c66fb7e728729f41df3720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87400d9f00d5bf224b9f9c16f5fd13f1c34afbd5e0c66fb7e728729f41df3720", kill_on_drop: false }`
[INFO] [stdout] 87400d9f00d5bf224b9f9c16f5fd13f1c34afbd5e0c66fb7e728729f41df3720
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c5857657755fab2247f7d58525a1e79463e0219b081e2c221d7915b4712203a
[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" "7c5857657755fab2247f7d58525a1e79463e0219b081e2c221d7915b4712203a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.4
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tokio-executor v0.1.3 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-io v0.1.7 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-timer v0.2.5 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-threadpool v0.1.5 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-reactor v0.1.3 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-codec v0.1.0 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-fs v0.1.3 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-tcp v0.1.1 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-udp v0.1.1 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio-uds v0.2.1 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking tokio v0.1.7 (https://github.com/tokio-rs/tokio.git#d822b721)
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]     Checking deadlock-repro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.88s
[INFO] running `Command { std: "docker" "inspect" "7c5857657755fab2247f7d58525a1e79463e0219b081e2c221d7915b4712203a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5857657755fab2247f7d58525a1e79463e0219b081e2c221d7915b4712203a", kill_on_drop: false }`
[INFO] [stdout] 7c5857657755fab2247f7d58525a1e79463e0219b081e2c221d7915b4712203a