[INFO] crate median_three_quicksort 0.0.1 is already in cache
[INFO] building median_three_quicksort-0.0.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate median_three_quicksort 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate median_three_quicksort 0.0.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate median_three_quicksort 0.0.1
[INFO] finished tweaking crates.io crate median_three_quicksort 0.0.1
[INFO] tweaked toml for crates.io crate median_three_quicksort 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28fe7950b018922bd100f60dfae19f33e6e07d2d1d4133fee16c6c4e6ca26bcf
[INFO] running `"docker" "start" "-a" "28fe7950b018922bd100f60dfae19f33e6e07d2d1d4133fee16c6c4e6ca26bcf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling median_three_quicksort v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "28fe7950b018922bd100f60dfae19f33e6e07d2d1d4133fee16c6c4e6ca26bcf"`
[INFO] running `"docker" "rm" "-f" "28fe7950b018922bd100f60dfae19f33e6e07d2d1d4133fee16c6c4e6ca26bcf"`
[INFO] [stdout] 28fe7950b018922bd100f60dfae19f33e6e07d2d1d4133fee16c6c4e6ca26bcf
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eb799fe5edeec112fa624ec9d13d155f67b44e5c4071e5653fd55aac747f3984
[INFO] running `"docker" "start" "-a" "eb799fe5edeec112fa624ec9d13d155f67b44e5c4071e5653fd55aac747f3984"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling median_three_quicksort v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "eb799fe5edeec112fa624ec9d13d155f67b44e5c4071e5653fd55aac747f3984"`
[INFO] running `"docker" "rm" "-f" "eb799fe5edeec112fa624ec9d13d155f67b44e5c4071e5653fd55aac747f3984"`
[INFO] [stdout] eb799fe5edeec112fa624ec9d13d155f67b44e5c4071e5653fd55aac747f3984