[INFO] fetching crate level 0.2.0...
[INFO] testing level-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate level 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate level 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate level 0.2.0
[INFO] finished tweaking crates.io crate level 0.2.0
[INFO] tweaked toml for crates.io crate level 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate level 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded clicolors-control v1.0.1
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded console v0.9.1
[INFO] [stderr]   Downloaded termion v1.5.4
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded indicatif v0.13.0
[INFO] [stderr]   Downloaded termios v0.3.1
[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" "+beta-2021-09-08" "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] 8012a1d2effa6bbde1b95d379f748b4901e0b05996eafb29437be8c33e1dd936
[INFO] running `Command { std: "docker" "start" "-a" "8012a1d2effa6bbde1b95d379f748b4901e0b05996eafb29437be8c33e1dd936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8012a1d2effa6bbde1b95d379f748b4901e0b05996eafb29437be8c33e1dd936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8012a1d2effa6bbde1b95d379f748b4901e0b05996eafb29437be8c33e1dd936", kill_on_drop: false }`
[INFO] [stdout] 8012a1d2effa6bbde1b95d379f748b4901e0b05996eafb29437be8c33e1dd936
[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" "+beta-2021-09-08" "build" "--frozen" "--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] 1ebb0ad3d7bb41699afd37a1ceff12747dd29c45d2ca4aa3dbd7d170af7766dd
[INFO] running `Command { std: "docker" "start" "-a" "1ebb0ad3d7bb41699afd37a1ceff12747dd29c45d2ca4aa3dbd7d170af7766dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling termion v1.5.4
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling console v0.9.1
[INFO] [stderr]    Compiling indicatif v0.13.0
[INFO] [stderr]    Compiling level v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.01s
[INFO] running `Command { std: "docker" "inspect" "1ebb0ad3d7bb41699afd37a1ceff12747dd29c45d2ca4aa3dbd7d170af7766dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ebb0ad3d7bb41699afd37a1ceff12747dd29c45d2ca4aa3dbd7d170af7766dd", kill_on_drop: false }`
[INFO] [stdout] 1ebb0ad3d7bb41699afd37a1ceff12747dd29c45d2ca4aa3dbd7d170af7766dd
[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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c9081a3dd53c867f2f311e57f7fac3d330493f8830709cdb1b3b19192d2b3de
[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" "6c9081a3dd53c867f2f311e57f7fac3d330493f8830709cdb1b3b19192d2b3de", kill_on_drop: false }`
[INFO] [stderr]    Compiling level v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "6c9081a3dd53c867f2f311e57f7fac3d330493f8830709cdb1b3b19192d2b3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c9081a3dd53c867f2f311e57f7fac3d330493f8830709cdb1b3b19192d2b3de", kill_on_drop: false }`
[INFO] [stdout] 6c9081a3dd53c867f2f311e57f7fac3d330493f8830709cdb1b3b19192d2b3de
[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" "+beta-2021-09-08" "test" "--frozen", 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] 7b44568f0f934aa970655e4b222d679da5189ad932c8458c79163ff9cc4d9114
[INFO] running `Command { std: "docker" "start" "-a" "7b44568f0f934aa970655e4b222d679da5189ad932c8458c79163ff9cc4d9114", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/level-6620081543629a85)
[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" "7b44568f0f934aa970655e4b222d679da5189ad932c8458c79163ff9cc4d9114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b44568f0f934aa970655e4b222d679da5189ad932c8458c79163ff9cc4d9114", kill_on_drop: false }`
[INFO] [stdout] 7b44568f0f934aa970655e4b222d679da5189ad932c8458c79163ff9cc4d9114