[INFO] fetching crate canticle 0.0.6...
[INFO] checking canticle-0.0.6 against 1.55.0 for beta-1.56-3
[INFO] extracting crate canticle 0.0.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate canticle 0.0.6 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate canticle 0.0.6
[INFO] finished tweaking crates.io crate canticle 0.0.6
[INFO] tweaked toml for crates.io crate canticle 0.0.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate canticle 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 384c525448017149fa05f5155cc0f8178979290c367e7cfb1f37fb3b04cbcac0
[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" "384c525448017149fa05f5155cc0f8178979290c367e7cfb1f37fb3b04cbcac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "384c525448017149fa05f5155cc0f8178979290c367e7cfb1f37fb3b04cbcac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384c525448017149fa05f5155cc0f8178979290c367e7cfb1f37fb3b04cbcac0", kill_on_drop: false }`
[INFO] [stdout] 384c525448017149fa05f5155cc0f8178979290c367e7cfb1f37fb3b04cbcac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1973a9c4ae71042b750016b5bbc568335579bcb030547889b0cbedf2aa9701e4
[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" "1973a9c4ae71042b750016b5bbc568335579bcb030547889b0cbedf2aa9701e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking canticle v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "1973a9c4ae71042b750016b5bbc568335579bcb030547889b0cbedf2aa9701e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1973a9c4ae71042b750016b5bbc568335579bcb030547889b0cbedf2aa9701e4", kill_on_drop: false }`
[INFO] [stdout] 1973a9c4ae71042b750016b5bbc568335579bcb030547889b0cbedf2aa9701e4
