[INFO] fetching crate number_prefix 0.4.0...
[INFO] checking number_prefix-0.4.0 against try#5d9095c550fcec9e458ce8d6b0c04a217641db66 for pr-77153
[INFO] extracting crate number_prefix 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate number_prefix 0.4.0 on toolchain 5d9095c550fcec9e458ce8d6b0c04a217641db66
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate number_prefix 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate number_prefix 0.4.0
[INFO] tweaked toml for crates.io crate number_prefix 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate number_prefix 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "metadata" "--no-deps" "--format-version=1", 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] 5ab1b4938ab39a249ea2ae9e3938b3955d8e46f57bbbab5e70a36751f64475a6
[INFO] running `Command { std: "docker" "start" "-a" "5ab1b4938ab39a249ea2ae9e3938b3955d8e46f57bbbab5e70a36751f64475a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ab1b4938ab39a249ea2ae9e3938b3955d8e46f57bbbab5e70a36751f64475a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab1b4938ab39a249ea2ae9e3938b3955d8e46f57bbbab5e70a36751f64475a6", kill_on_drop: false }`
[INFO] [stdout] 5ab1b4938ab39a249ea2ae9e3938b3955d8e46f57bbbab5e70a36751f64475a6
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+5d9095c550fcec9e458ce8d6b0c04a217641db66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1a68dbd9c5ff24f4b6450d0a8c66bab82bf13a211d82b27a76b74eba5b3385a
[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" "b1a68dbd9c5ff24f4b6450d0a8c66bab82bf13a211d82b27a76b74eba5b3385a", kill_on_drop: false }`
[INFO] [stderr]     Checking number_prefix v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "b1a68dbd9c5ff24f4b6450d0a8c66bab82bf13a211d82b27a76b74eba5b3385a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1a68dbd9c5ff24f4b6450d0a8c66bab82bf13a211d82b27a76b74eba5b3385a", kill_on_drop: false }`
[INFO] [stdout] b1a68dbd9c5ff24f4b6450d0a8c66bab82bf13a211d82b27a76b74eba5b3385a