[INFO] fetching crate stave 0.0.0...
[INFO] checking stave-0.0.0 against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] extracting crate stave 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate stave 0.0.0 on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stave 0.0.0
[INFO] finished tweaking crates.io crate stave 0.0.0
[INFO] tweaked toml for crates.io crate stave 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate stave 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "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] e7eec9c41b9d7d972f285810eee977e42bc91885866f126a1c8c6e19dace882d
[INFO] running `Command { std: "docker" "start" "-a" "e7eec9c41b9d7d972f285810eee977e42bc91885866f126a1c8c6e19dace882d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7eec9c41b9d7d972f285810eee977e42bc91885866f126a1c8c6e19dace882d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7eec9c41b9d7d972f285810eee977e42bc91885866f126a1c8c6e19dace882d", kill_on_drop: false }`
[INFO] [stdout] e7eec9c41b9d7d972f285810eee977e42bc91885866f126a1c8c6e19dace882d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e7e0d83125c4c2948104cb598bd8ff9eb9ae9179ac3c9fcd90cab49e53930e7
[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" "6e7e0d83125c4c2948104cb598bd8ff9eb9ae9179ac3c9fcd90cab49e53930e7", kill_on_drop: false }`
[INFO] [stderr]     Checking stave v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "6e7e0d83125c4c2948104cb598bd8ff9eb9ae9179ac3c9fcd90cab49e53930e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7e0d83125c4c2948104cb598bd8ff9eb9ae9179ac3c9fcd90cab49e53930e7", kill_on_drop: false }`
[INFO] [stdout] 6e7e0d83125c4c2948104cb598bd8ff9eb9ae9179ac3c9fcd90cab49e53930e7