[INFO] fetching crate stempel 0.7.1...
[INFO] checking stempel-0.7.1 against beta for pr-78714
[INFO] extracting crate stempel 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate stempel 0.7.1 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 stempel 0.7.1
[INFO] finished tweaking crates.io crate stempel 0.7.1
[INFO] tweaked toml for crates.io crate stempel 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate stempel 0.7.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c1153d9c456a32e1b43b7c1d48924a81bc74e8c5fc5105caeed196ae3f36ac4d
[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" "c1153d9c456a32e1b43b7c1d48924a81bc74e8c5fc5105caeed196ae3f36ac4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1153d9c456a32e1b43b7c1d48924a81bc74e8c5fc5105caeed196ae3f36ac4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1153d9c456a32e1b43b7c1d48924a81bc74e8c5fc5105caeed196ae3f36ac4d", kill_on_drop: false }`
[INFO] [stdout] c1153d9c456a32e1b43b7c1d48924a81bc74e8c5fc5105caeed196ae3f36ac4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 33c278a76d779d3be81483608dd5accafab414e5b86b75fe8aff824551a64df8
[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" "33c278a76d779d3be81483608dd5accafab414e5b86b75fe8aff824551a64df8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking stempel v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.03s
[INFO] running `Command { std: "docker" "inspect" "33c278a76d779d3be81483608dd5accafab414e5b86b75fe8aff824551a64df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c278a76d779d3be81483608dd5accafab414e5b86b75fe8aff824551a64df8", kill_on_drop: false }`
[INFO] [stdout] 33c278a76d779d3be81483608dd5accafab414e5b86b75fe8aff824551a64df8