[INFO] fetching crate graviton_backend 0.5.0...
[INFO] checking graviton_backend-0.5.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate graviton_backend 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate graviton_backend 0.5.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate graviton_backend 0.5.0
[INFO] finished tweaking crates.io crate graviton_backend 0.5.0
[INFO] tweaked toml for crates.io crate graviton_backend 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 37f0485ee089450887adeb1c62ceb1efa0401d5af60d768d9f5e4a1e8cc91eaa
[INFO] running `"docker" "start" "-a" "37f0485ee089450887adeb1c62ceb1efa0401d5af60d768d9f5e4a1e8cc91eaa"`
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling cranelift-entity v0.38.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]    Compiling typetag-impl v0.1.4
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]     Checking string-interner v0.6.4
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking graviton_ast v0.5.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking cranelift-bforest v0.38.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.38.0
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]     Checking goblin v0.0.23
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]    Compiling target-lexicon v0.4.0
[INFO] [stderr]     Checking typetag v0.1.4
[INFO] [stderr]     Checking faerie v0.10.2
[INFO] [stderr]    Compiling cranelift-codegen v0.38.0
[INFO] [stderr]     Checking cranelift-frontend v0.38.0
[INFO] [stderr]     Checking cranelift-module v0.38.0
[INFO] [stderr]     Checking cranelift-native v0.38.0
[INFO] [stderr]     Checking cranelift v0.38.0
[INFO] [stderr]     Checking cranelift-faerie v0.38.0
[INFO] [stderr]     Checking graviton_backend v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `"docker" "inspect" "37f0485ee089450887adeb1c62ceb1efa0401d5af60d768d9f5e4a1e8cc91eaa"`
[INFO] running `"docker" "rm" "-f" "37f0485ee089450887adeb1c62ceb1efa0401d5af60d768d9f5e4a1e8cc91eaa"`
[INFO] [stdout] 37f0485ee089450887adeb1c62ceb1efa0401d5af60d768d9f5e4a1e8cc91eaa