[INFO] fetching crate futures_cbor_codec 0.3.0...
[INFO] checking futures_cbor_codec-0.3.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate futures_cbor_codec 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate futures_cbor_codec 0.3.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures_cbor_codec 0.3.0
[INFO] finished tweaking crates.io crate futures_cbor_codec 0.3.0
[INFO] tweaked toml for crates.io crate futures_cbor_codec 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate futures_cbor_codec 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 991e5f860eb65ef3f49a7071b8a34f892d01c73d58268acb0ba9d2e6935622b3
[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" "991e5f860eb65ef3f49a7071b8a34f892d01c73d58268acb0ba9d2e6935622b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "991e5f860eb65ef3f49a7071b8a34f892d01c73d58268acb0ba9d2e6935622b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991e5f860eb65ef3f49a7071b8a34f892d01c73d58268acb0ba9d2e6935622b3", kill_on_drop: false }`
[INFO] [stdout] 991e5f860eb65ef3f49a7071b8a34f892d01c73d58268acb0ba9d2e6935622b3
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 78cac729674e200ed744e7df7ac0800b02839099f5645ae8eb99bd54612757aa
[INFO] running `Command { std: "docker" "start" "-a" "78cac729674e200ed744e7df7ac0800b02839099f5645ae8eb99bd54612757aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking ringbuf v0.2.3
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling futures_ringbuf v0.3.0
[INFO] [stderr]    Compiling futures_cbor_codec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling log-derive v0.4.1
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking asynchronous-codec v0.6.0
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.97s
[INFO] running `Command { std: "docker" "inspect" "78cac729674e200ed744e7df7ac0800b02839099f5645ae8eb99bd54612757aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78cac729674e200ed744e7df7ac0800b02839099f5645ae8eb99bd54612757aa", kill_on_drop: false }`
[INFO] [stdout] 78cac729674e200ed744e7df7ac0800b02839099f5645ae8eb99bd54612757aa