[INFO] fetching crate rust_nb 0.1.1...
[INFO] checking rust_nb-0.1.1 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate rust_nb 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rust_nb 0.1.1 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_nb 0.1.1
[INFO] finished tweaking crates.io crate rust_nb 0.1.1
[INFO] tweaked toml for crates.io crate rust_nb 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate rust_nb 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d9b8848742fb0969e76fe8e4fef952c29490d285a8387c61f14e5bd760aa6f1
[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" "5d9b8848742fb0969e76fe8e4fef952c29490d285a8387c61f14e5bd760aa6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d9b8848742fb0969e76fe8e4fef952c29490d285a8387c61f14e5bd760aa6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9b8848742fb0969e76fe8e4fef952c29490d285a8387c61f14e5bd760aa6f1", kill_on_drop: false }`
[INFO] [stdout] 5d9b8848742fb0969e76fe8e4fef952c29490d285a8387c61f14e5bd760aa6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] ffcf9f11c34b782cf47360e7f63ceef6d0619588e5f1d1f57f281b8830f586f0
[INFO] running `Command { std: "docker" "start" "-a" "ffcf9f11c34b782cf47360e7f63ceef6d0619588e5f1d1f57f281b8830f586f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking serde_regex v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking rust_nb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.18s
[INFO] running `Command { std: "docker" "inspect" "ffcf9f11c34b782cf47360e7f63ceef6d0619588e5f1d1f57f281b8830f586f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcf9f11c34b782cf47360e7f63ceef6d0619588e5f1d1f57f281b8830f586f0", kill_on_drop: false }`
[INFO] [stdout] ffcf9f11c34b782cf47360e7f63ceef6d0619588e5f1d1f57f281b8830f586f0