[INFO] fetching crate promptress 0.2.2...
[INFO] checking promptress-0.2.2 against beta for pr-78714
[INFO] extracting crate promptress 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate promptress 0.2.2 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 promptress 0.2.2
[INFO] finished tweaking crates.io crate promptress 0.2.2
[INFO] tweaked toml for crates.io crate promptress 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate promptress 0.2.2 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 84836394e067b094c2806b0c184952d6d5125fb94d361d012da651bf48c80771
[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" "84836394e067b094c2806b0c184952d6d5125fb94d361d012da651bf48c80771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84836394e067b094c2806b0c184952d6d5125fb94d361d012da651bf48c80771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84836394e067b094c2806b0c184952d6d5125fb94d361d012da651bf48c80771", kill_on_drop: false }`
[INFO] [stdout] 84836394e067b094c2806b0c184952d6d5125fb94d361d012da651bf48c80771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4c58fb98b45b90c7c17800d3e3594a493a5557c7e4db44c3f93d2a60caa3d8c1
[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" "4c58fb98b45b90c7c17800d3e3594a493a5557c7e4db44c3f93d2a60caa3d8c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.11+1.0.1
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking git2 v0.13.9
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking promptress v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.76s
[INFO] running `Command { std: "docker" "inspect" "4c58fb98b45b90c7c17800d3e3594a493a5557c7e4db44c3f93d2a60caa3d8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c58fb98b45b90c7c17800d3e3594a493a5557c7e4db44c3f93d2a60caa3d8c1", kill_on_drop: false }`
[INFO] [stdout] 4c58fb98b45b90c7c17800d3e3594a493a5557c7e4db44c3f93d2a60caa3d8c1