[INFO] fetching crate lifetime-thread 0.2.3...
[INFO] checking lifetime-thread-0.2.3 against beta for pr-78714
[INFO] extracting crate lifetime-thread 0.2.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate lifetime-thread 0.2.3 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 lifetime-thread 0.2.3
[INFO] finished tweaking crates.io crate lifetime-thread 0.2.3
[INFO] tweaked toml for crates.io crate lifetime-thread 0.2.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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] a3202793c1e5ba2021af94591d969030b744a78aea26b1b718c13a60078f3422
[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" "a3202793c1e5ba2021af94591d969030b744a78aea26b1b718c13a60078f3422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3202793c1e5ba2021af94591d969030b744a78aea26b1b718c13a60078f3422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3202793c1e5ba2021af94591d969030b744a78aea26b1b718c13a60078f3422", kill_on_drop: false }`
[INFO] [stdout] a3202793c1e5ba2021af94591d969030b744a78aea26b1b718c13a60078f3422
[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" "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] [stdout] ac877a1465911323ae218dc5a64ac6e371a23f733b5c772ab25f98b1970821bd
[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" "ac877a1465911323ae218dc5a64ac6e371a23f733b5c772ab25f98b1970821bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking lifetime-thread v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.35s
[INFO] running `Command { std: "docker" "inspect" "ac877a1465911323ae218dc5a64ac6e371a23f733b5c772ab25f98b1970821bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac877a1465911323ae218dc5a64ac6e371a23f733b5c772ab25f98b1970821bd", kill_on_drop: false }`
[INFO] [stdout] ac877a1465911323ae218dc5a64ac6e371a23f733b5c772ab25f98b1970821bd