[INFO] updating cached repository https://github.com/rjloura/sync_vs_async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae4217191e53075fa88075ca4a8d5ca6a7449b97
[INFO] checking rjloura/sync_vs_async against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjloura%2Fsync_vs_async" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rjloura/sync_vs_async on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rjloura/sync_vs_async
[INFO] finished tweaking git repo https://github.com/rjloura/sync_vs_async
[INFO] tweaked toml for git repo https://github.com/rjloura/sync_vs_async written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rjloura/sync_vs_async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cddb75546a86120f74482b48dc1d89dca7ce7d2a307408a4b8aedd57140c9ef
[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" "7cddb75546a86120f74482b48dc1d89dca7ce7d2a307408a4b8aedd57140c9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cddb75546a86120f74482b48dc1d89dca7ce7d2a307408a4b8aedd57140c9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cddb75546a86120f74482b48dc1d89dca7ce7d2a307408a4b8aedd57140c9ef", kill_on_drop: false }`
[INFO] [stdout] 7cddb75546a86120f74482b48dc1d89dca7ce7d2a307408a4b8aedd57140c9ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] 3af7e963d310af5fcf0f98131e872ae7d23216cef6f056aafeecd55ebeae7c80
[INFO] running `Command { std: "docker" "start" "-a" "3af7e963d310af5fcf0f98131e872ae7d23216cef6f056aafeecd55ebeae7c80", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking fast_download v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "3af7e963d310af5fcf0f98131e872ae7d23216cef6f056aafeecd55ebeae7c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af7e963d310af5fcf0f98131e872ae7d23216cef6f056aafeecd55ebeae7c80", kill_on_drop: false }`
[INFO] [stdout] 3af7e963d310af5fcf0f98131e872ae7d23216cef6f056aafeecd55ebeae7c80