[INFO] fetching crate libipld-core 0.6.0...
[INFO] checking libipld-core-0.6.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate libipld-core 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libipld-core 0.6.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libipld-core 0.6.0
[INFO] finished tweaking crates.io crate libipld-core 0.6.0
[INFO] tweaked toml for crates.io crate libipld-core 0.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 204ced5670309771a40d248f59c47a22414e38cbc8e526629930a03a23f18a4b
[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" "204ced5670309771a40d248f59c47a22414e38cbc8e526629930a03a23f18a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "204ced5670309771a40d248f59c47a22414e38cbc8e526629930a03a23f18a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "204ced5670309771a40d248f59c47a22414e38cbc8e526629930a03a23f18a4b", kill_on_drop: false }`
[INFO] [stdout] 204ced5670309771a40d248f59c47a22414e38cbc8e526629930a03a23f18a4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4110be3031986fbe1a4a4f4e2110a69b68aada92ce3c8527ed1c410b524c94e
[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" "b4110be3031986fbe1a4a4f4e2110a69b68aada92ce3c8527ed1c410b524c94e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling data-encoding v2.3.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking anyhow v1.0.32
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking strobe-rs v0.5.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling tiny-multihash-derive v0.4.2
[INFO] [stderr]     Checking tiny-multihash v0.4.7
[INFO] [stderr]     Checking tiny-cid v0.2.8
[INFO] [stderr]     Checking libipld-core v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.90s
[INFO] running `Command { std: "docker" "inspect" "b4110be3031986fbe1a4a4f4e2110a69b68aada92ce3c8527ed1c410b524c94e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4110be3031986fbe1a4a4f4e2110a69b68aada92ce3c8527ed1c410b524c94e", kill_on_drop: false }`
[INFO] [stdout] b4110be3031986fbe1a4a4f4e2110a69b68aada92ce3c8527ed1c410b524c94e