[INFO] fetching crate rhythmc_compiler 0.0.2...
[INFO] checking rhythmc_compiler-0.0.2 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate rhythmc_compiler 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rhythmc_compiler 0.0.2 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 rhythmc_compiler 0.0.2
[INFO] finished tweaking crates.io crate rhythmc_compiler 0.0.2
[INFO] tweaked toml for crates.io crate rhythmc_compiler 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 718848cb228de4c1f8f67c66ff8ea9a0b66bd7a1991cdaea00e879733dec4f65
[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" "718848cb228de4c1f8f67c66ff8ea9a0b66bd7a1991cdaea00e879733dec4f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "718848cb228de4c1f8f67c66ff8ea9a0b66bd7a1991cdaea00e879733dec4f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718848cb228de4c1f8f67c66ff8ea9a0b66bd7a1991cdaea00e879733dec4f65", kill_on_drop: false }`
[INFO] [stdout] 718848cb228de4c1f8f67c66ff8ea9a0b66bd7a1991cdaea00e879733dec4f65
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a16de92f9576d90044d66f84b4805a805739797f5c4b1b8f44cc553bd5667b2
[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" "4a16de92f9576d90044d66f84b4805a805739797f5c4b1b8f44cc553bd5667b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking glsl v6.0.0
[INFO] [stderr]     Checking rhythmc_compiler v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.82s
[INFO] running `Command { std: "docker" "inspect" "4a16de92f9576d90044d66f84b4805a805739797f5c4b1b8f44cc553bd5667b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a16de92f9576d90044d66f84b4805a805739797f5c4b1b8f44cc553bd5667b2", kill_on_drop: false }`
[INFO] [stdout] 4a16de92f9576d90044d66f84b4805a805739797f5c4b1b8f44cc553bd5667b2