[INFO] fetching crate meshuganah 0.2.2...
[INFO] checking meshuganah-0.2.2 against beta for pr-78714
[INFO] extracting crate meshuganah 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate meshuganah 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 meshuganah 0.2.2
[INFO] finished tweaking crates.io crate meshuganah 0.2.2
[INFO] tweaked toml for crates.io crate meshuganah 0.2.2 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a74a76b645357a3225c6223412117663be9c2b80af9d8e97c4459e5c139daafd
[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" "a74a76b645357a3225c6223412117663be9c2b80af9d8e97c4459e5c139daafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a74a76b645357a3225c6223412117663be9c2b80af9d8e97c4459e5c139daafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a74a76b645357a3225c6223412117663be9c2b80af9d8e97c4459e5c139daafd", kill_on_drop: false }`
[INFO] [stdout] a74a76b645357a3225c6223412117663be9c2b80af9d8e97c4459e5c139daafd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5d0b7c046b2acea39053c0f5867988ec8ecf1b19d2bb986bff545b6a604825fa
[INFO] running `Command { std: "docker" "start" "-a" "5d0b7c046b2acea39053c0f5867988ec8ecf1b19d2bb986bff545b6a604825fa", kill_on_drop: false }`
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking version_check v0.9.2
[INFO] [stderr]     Checking fomat-macros v0.3.1
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking os_info v2.0.8
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]    Compiling serde_with_macros v1.2.2
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking bson v1.1.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking grcov v0.5.15
[INFO] [stderr]     Checking serde_with v1.5.1
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking mongodb v1.1.1
[INFO] [stderr]     Checking meshuganah v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.73s
[INFO] running `Command { std: "docker" "inspect" "5d0b7c046b2acea39053c0f5867988ec8ecf1b19d2bb986bff545b6a604825fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0b7c046b2acea39053c0f5867988ec8ecf1b19d2bb986bff545b6a604825fa", kill_on_drop: false }`
[INFO] [stdout] 5d0b7c046b2acea39053c0f5867988ec8ecf1b19d2bb986bff545b6a604825fa