[INFO] fetching crate memory-balloon 0.1.0...
[INFO] testing memory-balloon-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate memory-balloon 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate memory-balloon 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memory-balloon 0.1.0
[INFO] finished tweaking crates.io crate memory-balloon 0.1.0
[INFO] tweaked toml for crates.io crate memory-balloon 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate memory-balloon 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded rand_core v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.59
[INFO] [stderr]   Downloaded atty v0.2.12
[INFO] [stderr]   Downloaded syn v0.15.39
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded region v2.1.2
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] running `Command { std: "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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 1f5578535719714873dae9bfff47c280d9f499413b9c63049c9c76ef9f0ea877
[INFO] running `Command { std: "docker" "start" "-a" "1f5578535719714873dae9bfff47c280d9f499413b9c63049c9c76ef9f0ea877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f5578535719714873dae9bfff47c280d9f499413b9c63049c9c76ef9f0ea877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5578535719714873dae9bfff47c280d9f499413b9c63049c9c76ef9f0ea877", kill_on_drop: false }`
[INFO] [stdout] 1f5578535719714873dae9bfff47c280d9f499413b9c63049c9c76ef9f0ea877
[INFO] running `Command { std: "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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54732072c15a72a4c41d0a830914fa0f504dc0e4d021ee983fca6d7fca253f63
[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" "54732072c15a72a4c41d0a830914fa0f504dc0e4d021ee983fca6d7fca253f63", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling region v2.1.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling memory-balloon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.39s
[INFO] running `Command { std: "docker" "inspect" "54732072c15a72a4c41d0a830914fa0f504dc0e4d021ee983fca6d7fca253f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54732072c15a72a4c41d0a830914fa0f504dc0e4d021ee983fca6d7fca253f63", kill_on_drop: false }`
[INFO] [stdout] 54732072c15a72a4c41d0a830914fa0f504dc0e4d021ee983fca6d7fca253f63
[INFO] running `Command { std: "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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] 9a2aa173a3bc757cbb6e17f3110f8010baf4489f3ee960d14da0d3856523d76a
[INFO] running `Command { std: "docker" "start" "-a" "9a2aa173a3bc757cbb6e17f3110f8010baf4489f3ee960d14da0d3856523d76a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memory-balloon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "9a2aa173a3bc757cbb6e17f3110f8010baf4489f3ee960d14da0d3856523d76a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2aa173a3bc757cbb6e17f3110f8010baf4489f3ee960d14da0d3856523d76a", kill_on_drop: false }`
[INFO] [stdout] 9a2aa173a3bc757cbb6e17f3110f8010baf4489f3ee960d14da0d3856523d76a
[INFO] running `Command { std: "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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e692e4cdcf75771dbbaabc764f48cd7bf32a1942642c9c81f9493bf43d834cf6
[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" "e692e4cdcf75771dbbaabc764f48cd7bf32a1942642c9c81f9493bf43d834cf6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/balloon-2a34c6613295d6ad)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e692e4cdcf75771dbbaabc764f48cd7bf32a1942642c9c81f9493bf43d834cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e692e4cdcf75771dbbaabc764f48cd7bf32a1942642c9c81f9493bf43d834cf6", kill_on_drop: false }`
[INFO] [stdout] e692e4cdcf75771dbbaabc764f48cd7bf32a1942642c9c81f9493bf43d834cf6