[INFO] fetching crate json2struct 0.1.6...
[INFO] checking json2struct-0.1.6 against beta for pr-78714
[INFO] extracting crate json2struct 0.1.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate json2struct 0.1.6 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json2struct 0.1.6
[INFO] finished tweaking crates.io crate json2struct 0.1.6
[INFO] tweaked toml for crates.io crate json2struct 0.1.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate json2struct 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3b208d15602cd6ec67ca1803a058e15174e37e50468cc620783d6fd4f2db832
[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" "e3b208d15602cd6ec67ca1803a058e15174e37e50468cc620783d6fd4f2db832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3b208d15602cd6ec67ca1803a058e15174e37e50468cc620783d6fd4f2db832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b208d15602cd6ec67ca1803a058e15174e37e50468cc620783d6fd4f2db832", kill_on_drop: false }`
[INFO] [stdout] e3b208d15602cd6ec67ca1803a058e15174e37e50468cc620783d6fd4f2db832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c3d69fba006a19651afeca8ab1e6660bc7ff994876c5f27d0389380272b2f45c
[INFO] running `Command { std: "docker" "start" "-a" "c3d69fba006a19651afeca8ab1e6660bc7ff994876c5f27d0389380272b2f45c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking globwalk v0.3.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking clap-verbosity-flag v0.2.0
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking quicli v0.4.0
[INFO] [stderr]     Checking json2struct v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "c3d69fba006a19651afeca8ab1e6660bc7ff994876c5f27d0389380272b2f45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d69fba006a19651afeca8ab1e6660bc7ff994876c5f27d0389380272b2f45c", kill_on_drop: false }`
[INFO] [stdout] c3d69fba006a19651afeca8ab1e6660bc7ff994876c5f27d0389380272b2f45c