[INFO] fetching crate libipld-cbor 0.7.0...
[INFO] checking libipld-cbor-0.7.0 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate libipld-cbor 0.7.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libipld-cbor 0.7.0 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libipld-cbor 0.7.0
[INFO] finished tweaking crates.io crate libipld-cbor 0.7.0
[INFO] tweaked toml for crates.io crate libipld-cbor 0.7.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1288372ab9e4fa6f50b7c48557f665ae808fa52dbe89a48d9850e666706a1157
[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" "1288372ab9e4fa6f50b7c48557f665ae808fa52dbe89a48d9850e666706a1157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1288372ab9e4fa6f50b7c48557f665ae808fa52dbe89a48d9850e666706a1157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1288372ab9e4fa6f50b7c48557f665ae808fa52dbe89a48d9850e666706a1157", kill_on_drop: false }`
[INFO] [stdout] 1288372ab9e4fa6f50b7c48557f665ae808fa52dbe89a48d9850e666706a1157
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 1a52966c232821e1992f6e6fee614c0a7d16acdf53338153b261d105f359576d
[INFO] running `Command { std: "docker" "start" "-a" "1a52966c232821e1992f6e6fee614c0a7d16acdf53338153b261d105f359576d", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking base-x v0.2.8
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking strobe-rs v0.5.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling tiny-multihash-derive v0.5.0
[INFO] [stderr]     Checking data-encoding-macro v0.1.10
[INFO] [stderr]     Checking multibase v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking tiny-multihash v0.5.0
[INFO] [stderr]     Checking tiny-cid v0.3.0
[INFO] [stderr]     Checking libipld-core v0.7.0
[INFO] [stderr]     Checking libipld-cbor v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `libipld_macro`
[INFO] [stdout]   --> src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     use libipld_macro::ipld;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ use of undeclared crate or module `libipld_macro`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `ipld`
[INFO] [stdout]   --> src/lib.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let ipld = ipld!({
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libipld-cbor`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1a52966c232821e1992f6e6fee614c0a7d16acdf53338153b261d105f359576d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a52966c232821e1992f6e6fee614c0a7d16acdf53338153b261d105f359576d", kill_on_drop: false }`
[INFO] [stdout] 1a52966c232821e1992f6e6fee614c0a7d16acdf53338153b261d105f359576d