[INFO] fetching crate salsa 0.16.0...
[INFO] checking salsa-0.16.0 against beta for pr-78714
[INFO] extracting crate salsa 0.16.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate salsa 0.16.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salsa 0.16.0
[INFO] finished tweaking crates.io crate salsa 0.16.0
[INFO] tweaked toml for crates.io crate salsa 0.16.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate salsa 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 410af5f9e97ad3bb0cb88dc0116adc90edd358d9c48024e5fc094a91a218794a
[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" "410af5f9e97ad3bb0cb88dc0116adc90edd358d9c48024e5fc094a91a218794a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "410af5f9e97ad3bb0cb88dc0116adc90edd358d9c48024e5fc094a91a218794a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "410af5f9e97ad3bb0cb88dc0116adc90edd358d9c48024e5fc094a91a218794a", kill_on_drop: false }`
[INFO] [stdout] 410af5f9e97ad3bb0cb88dc0116adc90edd358d9c48024e5fc094a91a218794a
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c0e5026ef531b1c4a9122ae62b4e9f27a18be695686a357812a85cadb7bf38f
[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" "7c0e5026ef531b1c4a9122ae62b4e9f27a18be695686a357812a85cadb7bf38f", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking instant v0.1.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking lock_api v0.4.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling salsa-macros v0.16.0
[INFO] [stderr]     Checking salsa v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.91s
[INFO] running `Command { std: "docker" "inspect" "7c0e5026ef531b1c4a9122ae62b4e9f27a18be695686a357812a85cadb7bf38f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0e5026ef531b1c4a9122ae62b4e9f27a18be695686a357812a85cadb7bf38f", kill_on_drop: false }`
[INFO] [stdout] 7c0e5026ef531b1c4a9122ae62b4e9f27a18be695686a357812a85cadb7bf38f