[INFO] fetching crate cntr 1.5.1...
[INFO] checking cntr-1.5.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate cntr 1.5.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cntr 1.5.1 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 cntr 1.5.1
[INFO] finished tweaking crates.io crate cntr 1.5.1
[INFO] tweaked toml for crates.io crate cntr 1.5.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cntr 1.5.1 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a551c73b74263fd4541d3bf5ba5d39df900e7ff76b4da6eb529d07ffa5f322d4
[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" "a551c73b74263fd4541d3bf5ba5d39df900e7ff76b4da6eb529d07ffa5f322d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a551c73b74263fd4541d3bf5ba5d39df900e7ff76b4da6eb529d07ffa5f322d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a551c73b74263fd4541d3bf5ba5d39df900e7ff76b4da6eb529d07ffa5f322d4", kill_on_drop: false }`
[INFO] [stdout] a551c73b74263fd4541d3bf5ba5d39df900e7ff76b4da6eb529d07ffa5f322d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1c409ab62e05cf27d447be4bc6f9c6d8ffe385fa02e8c0487c37c13a903941d9
[INFO] running `Command { std: "docker" "start" "-a" "1c409ab62e05cf27d447be4bc6f9c6d8ffe385fa02e8c0487c37c13a903941d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking cntr-fuse-abi v0.4.1
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking concurrent-hashmap v0.2.2
[INFO] [stderr]    Compiling cntr-fuse-sys v0.4.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking cntr-fuse v0.4.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking cntr v1.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.98s
[INFO] running `Command { std: "docker" "inspect" "1c409ab62e05cf27d447be4bc6f9c6d8ffe385fa02e8c0487c37c13a903941d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c409ab62e05cf27d447be4bc6f9c6d8ffe385fa02e8c0487c37c13a903941d9", kill_on_drop: false }`
[INFO] [stdout] 1c409ab62e05cf27d447be4bc6f9c6d8ffe385fa02e8c0487c37c13a903941d9