[INFO] fetching crate rstb 0.1.2...
[INFO] checking rstb-0.1.2 against beta for pr-78714
[INFO] extracting crate rstb 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rstb 0.1.2 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 rstb 0.1.2
[INFO] finished tweaking crates.io crate rstb 0.1.2
[INFO] tweaked toml for crates.io crate rstb 0.1.2 written to /workspace/builds/worker-0/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-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] 76360b25bf252bfdc1de5dffef11fb7d317f45f7de53f20edb42aa0db81b83f7
[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" "76360b25bf252bfdc1de5dffef11fb7d317f45f7de53f20edb42aa0db81b83f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76360b25bf252bfdc1de5dffef11fb7d317f45f7de53f20edb42aa0db81b83f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76360b25bf252bfdc1de5dffef11fb7d317f45f7de53f20edb42aa0db81b83f7", kill_on_drop: false }`
[INFO] [stdout] 76360b25bf252bfdc1de5dffef11fb7d317f45f7de53f20edb42aa0db81b83f7
[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] [stdout] 48d5624ed415aacc25193dbe9de87c2512707e819708552c899ba74c895d1a55
[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" "48d5624ed415aacc25193dbe9de87c2512707e819708552c899ba74c895d1a55", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]     Checking yaz0 v0.1.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling binread_derive v1.4.0
[INFO] [stderr]    Compiling binwrite_derive v0.2.1
[INFO] [stderr]     Checking parse_int v0.4.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking binwrite v0.2.1
[INFO] [stderr]    Compiling async-io v1.2.0
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]     Checking binread v1.4.1
[INFO] [stderr]    Compiling cached_proc_macro v0.1.2
[INFO] [stderr]     Checking cached v0.13.1
[INFO] [stderr]     Checking rstb v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.41s
[INFO] running `Command { std: "docker" "inspect" "48d5624ed415aacc25193dbe9de87c2512707e819708552c899ba74c895d1a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48d5624ed415aacc25193dbe9de87c2512707e819708552c899ba74c895d1a55", kill_on_drop: false }`
[INFO] [stdout] 48d5624ed415aacc25193dbe9de87c2512707e819708552c899ba74c895d1a55