[INFO] fetching crate advent_of_code_rs 2019.12.45...
[INFO] checking advent_of_code_rs-2019.12.45 against beta for pr-78714
[INFO] extracting crate advent_of_code_rs 2019.12.45 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate advent_of_code_rs 2019.12.45 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 advent_of_code_rs 2019.12.45
[INFO] finished tweaking crates.io crate advent_of_code_rs 2019.12.45
[INFO] tweaked toml for crates.io crate advent_of_code_rs 2019.12.45 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate advent_of_code_rs 2019.12.45 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] e97318b45421f68c186a7da41e8e124f4a246e74476352e67344358a416dffa3
[INFO] running `Command { std: "docker" "start" "-a" "e97318b45421f68c186a7da41e8e124f4a246e74476352e67344358a416dffa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97318b45421f68c186a7da41e8e124f4a246e74476352e67344358a416dffa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97318b45421f68c186a7da41e8e124f4a246e74476352e67344358a416dffa3", kill_on_drop: false }`
[INFO] [stdout] e97318b45421f68c186a7da41e8e124f4a246e74476352e67344358a416dffa3
[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=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] 1c25fec2994a19034bfdf89ac9b7bae35ebfa67a1bd4b5c84d89e16f39c55452
[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" "1c25fec2994a19034bfdf89ac9b7bae35ebfa67a1bd4b5c84d89e16f39c55452", kill_on_drop: false }`
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking mod_exp v1.0.1
[INFO] [stderr]     Checking advent_of_code_rs v2019.12.45 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.32s
[INFO] running `Command { std: "docker" "inspect" "1c25fec2994a19034bfdf89ac9b7bae35ebfa67a1bd4b5c84d89e16f39c55452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c25fec2994a19034bfdf89ac9b7bae35ebfa67a1bd4b5c84d89e16f39c55452", kill_on_drop: false }`
[INFO] [stdout] 1c25fec2994a19034bfdf89ac9b7bae35ebfa67a1bd4b5c84d89e16f39c55452