[INFO] cloning repository https://github.com/fdeantoni/actix-ws-prost
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fdeantoni/actix-ws-prost" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdeantoni%2Factix-ws-prost", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdeantoni%2Factix-ws-prost'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b97377605f960b8f10bda28d98ce10e51966580
[INFO] checking fdeantoni/actix-ws-prost against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdeantoni%2Factix-ws-prost" "/workspace/builds/worker-58/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fdeantoni/actix-ws-prost on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fdeantoni/actix-ws-prost
[INFO] finished tweaking git repo https://github.com/fdeantoni/actix-ws-prost
[INFO] tweaked toml for git repo https://github.com/fdeantoni/actix-ws-prost written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate git repo https://github.com/fdeantoni/actix-ws-prost already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-timer v0.2.11
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded which v2.0.1
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded tokio-executor v0.1.8
[INFO] [stderr]   Downloaded winutil v0.1.1
[INFO] [stderr]   Downloaded hostname v0.1.5
[INFO] [stderr]   Downloaded tokio-sync v0.1.7
[INFO] [stderr]   Downloaded actix-connect v0.2.5
[INFO] [stderr]   Downloaded signal-hook-registry v1.1.1
[INFO] [stderr]   Downloaded tokio-reactor v0.1.10
[INFO] [stderr]   Downloaded actix-router v0.1.5
[INFO] [stderr]   Downloaded mime_guess v2.0.1
[INFO] [stderr]   Downloaded actix-utils v0.4.7
[INFO] [stderr]   Downloaded c2-chacha v0.2.2
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded unicode-segmentation v1.3.0
[INFO] [stderr]   Downloaded lock_api v0.2.0
[INFO] [stderr]   Downloaded arc-swap v0.4.3
[INFO] [stderr]   Downloaded derive_more v0.14.1
[INFO] [stderr]   Downloaded trust-dns-resolver v0.11.1
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded actix-files v0.1.6
[INFO] [stderr]   Downloaded miniz_oxide v0.3.3
[INFO] [stderr]   Downloaded tokio-udp v0.1.5
[INFO] [stderr]   Downloaded actix-http v0.2.10
[INFO] [stderr]   Downloaded awc v0.2.7
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded hashbrown v0.3.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.5
[INFO] [stderr]   Downloaded encoding_rs v0.8.20
[INFO] [stderr]   Downloaded tokio-signal v0.2.7
[INFO] [stderr]   Downloaded actix v0.8.3
[INFO] [stderr]   Downloaded signal-hook v0.1.10
[INFO] [stderr]   Downloaded actix-server v0.6.1
[INFO] [stderr]   Downloaded parking_lot v0.8.0
[INFO] [stderr]   Downloaded actix-web v1.0.8
[INFO] [stderr]   Downloaded actix-web-actors v1.0.2
[INFO] [stderr]   Downloaded serde_json v1.0.41
[INFO] [stderr]   Downloaded mime v0.3.14
[INFO] [stderr]   Downloaded actix-rt v0.2.5
[INFO] [stderr]   Downloaded derive_more v0.15.0
[INFO] [stderr]   Downloaded flate2 v1.0.12
[INFO] [stderr]   Downloaded resolv-conf v0.6.2
[INFO] [stderr]   Downloaded prost-derive v0.5.0
[INFO] [stderr]   Downloaded prost-types v0.5.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.7.4
[INFO] [stderr]   Downloaded hashbrown v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded http v0.1.19
[INFO] [stderr]   Downloaded actix-codec v0.1.2
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded actix-server-config v0.1.2
[INFO] [stderr]   Downloaded enum-as-inner v0.2.1
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded parking_lot_core v0.5.0
[INFO] [stderr]   Downloaded prost v0.5.0
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded synstructure v0.12.1
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded actix_derive v0.4.0
[INFO] [stderr]   Downloaded actix-web-codegen v0.1.3
[INFO] [stderr]   Downloaded actix-service v0.4.2
[INFO] [stderr]   Downloaded actix-testing v0.1.0
[INFO] [stderr]   Downloaded chrono v0.4.9
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded multimap v0.4.0
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded actix-threadpool v0.1.2
[INFO] [stderr]   Downloaded prost-build v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 415b08dd8c151a07d871f829062774c48d6cf67033cc7c6fc41b4881aa08a206
[INFO] running `Command { std: "docker" "start" "-a" "415b08dd8c151a07d871f829062774c48d6cf67033cc7c6fc41b4881aa08a206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "415b08dd8c151a07d871f829062774c48d6cf67033cc7c6fc41b4881aa08a206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415b08dd8c151a07d871f829062774c48d6cf67033cc7c6fc41b4881aa08a206", kill_on_drop: false }`
[INFO] [stdout] 415b08dd8c151a07d871f829062774c48d6cf67033cc7c6fc41b4881aa08a206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7feca1f5d9dfa13b855a101d8daec7f1ad1d8ba19cdceeff88580725a69dd4f
[INFO] running `Command { std: "docker" "start" "-a" "c7feca1f5d9dfa13b855a101d8daec7f1ad1d8ba19cdceeff88580725a69dd4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "c7feca1f5d9dfa13b855a101d8daec7f1ad1d8ba19cdceeff88580725a69dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7feca1f5d9dfa13b855a101d8daec7f1ad1d8ba19cdceeff88580725a69dd4f", kill_on_drop: false }`
[INFO] [stdout] c7feca1f5d9dfa13b855a101d8daec7f1ad1d8ba19cdceeff88580725a69dd4f