[INFO] cloning repository https://github.com/FlyingCowsCorporation/chat-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FlyingCowsCorporation/chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCowsCorporation%2Fchat-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCowsCorporation%2Fchat-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c71e50ca54b876aeebfee82b5015236a75942449
[INFO] checking FlyingCowsCorporation/chat-server against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlyingCowsCorporation%2Fchat-server" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FlyingCowsCorporation/chat-server on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FlyingCowsCorporation/chat-server
[INFO] finished tweaking git repo https://github.com/FlyingCowsCorporation/chat-server
[INFO] tweaked toml for git repo https://github.com/FlyingCowsCorporation/chat-server written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/FlyingCowsCorporation/chat-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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 num_cpus v1.10.0
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.5
[INFO] [stderr]   Downloaded utf8-ranges v1.0.2
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 992a195413a264b100d4adca1f0d2dffbf812a5d8b20636803818cacdaa9d953
[INFO] running `Command { std: "docker" "start" "-a" "992a195413a264b100d4adca1f0d2dffbf812a5d8b20636803818cacdaa9d953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "992a195413a264b100d4adca1f0d2dffbf812a5d8b20636803818cacdaa9d953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992a195413a264b100d4adca1f0d2dffbf812a5d8b20636803818cacdaa9d953", kill_on_drop: false }`
[INFO] [stdout] 992a195413a264b100d4adca1f0d2dffbf812a5d8b20636803818cacdaa9d953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d17832f935fa4af28489685b93dd8e94c144db5e4e42825a7928de4b602d4da
[INFO] running `Command { std: "docker" "start" "-a" "4d17832f935fa4af28489685b93dd8e94c144db5e4e42825a7928de4b602d4da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.02s
[INFO] running `Command { std: "docker" "inspect" "4d17832f935fa4af28489685b93dd8e94c144db5e4e42825a7928de4b602d4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d17832f935fa4af28489685b93dd8e94c144db5e4e42825a7928de4b602d4da", kill_on_drop: false }`
[INFO] [stdout] 4d17832f935fa4af28489685b93dd8e94c144db5e4e42825a7928de4b602d4da