[INFO] fetching crate preserves 0.9.0...
[INFO] checking preserves-0.9.0 against beta for pr-78714
[INFO] extracting crate preserves 0.9.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate preserves 0.9.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preserves 0.9.0
[INFO] finished tweaking crates.io crate preserves 0.9.0
[INFO] tweaked toml for crates.io crate preserves 0.9.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate preserves 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 309edc6f946184779ed5af110ffbe7bc433d1528658d5c581d9c99874c3e6fb3
[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" "309edc6f946184779ed5af110ffbe7bc433d1528658d5c581d9c99874c3e6fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "309edc6f946184779ed5af110ffbe7bc433d1528658d5c581d9c99874c3e6fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309edc6f946184779ed5af110ffbe7bc433d1528658d5c581d9c99874c3e6fb3", kill_on_drop: false }`
[INFO] [stdout] 309edc6f946184779ed5af110ffbe7bc433d1528658d5c581d9c99874c3e6fb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e27def8d6f197bb598ae69483a7698631adad4540e324e0633216a3947d5ab58
[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" "e27def8d6f197bb598ae69483a7698631adad4540e324e0633216a3947d5ab58", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking preserves v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.42s
[INFO] running `Command { std: "docker" "inspect" "e27def8d6f197bb598ae69483a7698631adad4540e324e0633216a3947d5ab58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27def8d6f197bb598ae69483a7698631adad4540e324e0633216a3947d5ab58", kill_on_drop: false }`
[INFO] [stdout] e27def8d6f197bb598ae69483a7698631adad4540e324e0633216a3947d5ab58