[INFO] fetching crate rusk 0.1.11...
[INFO] checking rusk-0.1.11 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate rusk 0.1.11 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rusk 0.1.11 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusk 0.1.11
[INFO] finished tweaking crates.io crate rusk 0.1.11
[INFO] tweaked toml for crates.io crate rusk 0.1.11 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rusk 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42123a6b332fe0f08d4936ac9181fe849505c3f2d36c9a42521c8a6ef9d0a2b4
[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" "42123a6b332fe0f08d4936ac9181fe849505c3f2d36c9a42521c8a6ef9d0a2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42123a6b332fe0f08d4936ac9181fe849505c3f2d36c9a42521c8a6ef9d0a2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42123a6b332fe0f08d4936ac9181fe849505c3f2d36c9a42521c8a6ef9d0a2b4", kill_on_drop: false }`
[INFO] [stdout] 42123a6b332fe0f08d4936ac9181fe849505c3f2d36c9a42521c8a6ef9d0a2b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d37e48bc5a8fdb45518b1eac6d89ef57e0e51b7ffd66ebd195d5ac09af8abb0
[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" "9d37e48bc5a8fdb45518b1eac6d89ef57e0e51b7ffd66ebd195d5ac09af8abb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking rusk v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `prefix_op`
[INFO] [stdout]    --> src/parser.rs:525:2
[INFO] [stdout]     |
[INFO] [stdout] 525 |     prefix_op: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefix_op`
[INFO] [stdout]    --> src/parser.rs:525:2
[INFO] [stdout]     |
[INFO] [stdout] 525 |     prefix_op: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.89s
[INFO] running `Command { std: "docker" "inspect" "9d37e48bc5a8fdb45518b1eac6d89ef57e0e51b7ffd66ebd195d5ac09af8abb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d37e48bc5a8fdb45518b1eac6d89ef57e0e51b7ffd66ebd195d5ac09af8abb0", kill_on_drop: false }`
[INFO] [stdout] 9d37e48bc5a8fdb45518b1eac6d89ef57e0e51b7ffd66ebd195d5ac09af8abb0