[INFO] fetching crate rb 0.4.1...
[INFO] checking rb-0.4.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate rb 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rb 0.4.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rb 0.4.1
[INFO] finished tweaking crates.io crate rb 0.4.1
[INFO] tweaked toml for crates.io crate rb 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rb 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e75a210a26473d28af8c65023fe31d43badb4cbb2357e921db5c1513c0b1636
[INFO] running `Command { std: "docker" "start" "-a" "9e75a210a26473d28af8c65023fe31d43badb4cbb2357e921db5c1513c0b1636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e75a210a26473d28af8c65023fe31d43badb4cbb2357e921db5c1513c0b1636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e75a210a26473d28af8c65023fe31d43badb4cbb2357e921db5c1513c0b1636", kill_on_drop: false }`
[INFO] [stdout] 9e75a210a26473d28af8c65023fe31d43badb4cbb2357e921db5c1513c0b1636
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff6688f441942cc1ad178e39c013219e550c88ce67375ba1b00226b5e4f9e81f
[INFO] running `Command { std: "docker" "start" "-a" "ff6688f441942cc1ad178e39c013219e550c88ce67375ba1b00226b5e4f9e81f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rb v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "ff6688f441942cc1ad178e39c013219e550c88ce67375ba1b00226b5e4f9e81f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6688f441942cc1ad178e39c013219e550c88ce67375ba1b00226b5e4f9e81f", kill_on_drop: false }`
[INFO] [stdout] ff6688f441942cc1ad178e39c013219e550c88ce67375ba1b00226b5e4f9e81f