[INFO] fetching crate arf-strings 0.3.0...
[INFO] testing arf-strings-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate arf-strings 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate arf-strings 0.3.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arf-strings 0.3.0
[INFO] finished tweaking crates.io crate arf-strings 0.3.0
[INFO] tweaked toml for crates.io crate arf-strings 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 352488c8801662a761db978aa93f7c2ea6c158390ade4b5bebccd2db6a36abd7
[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" "352488c8801662a761db978aa93f7c2ea6c158390ade4b5bebccd2db6a36abd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "352488c8801662a761db978aa93f7c2ea6c158390ade4b5bebccd2db6a36abd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "352488c8801662a761db978aa93f7c2ea6c158390ade4b5bebccd2db6a36abd7", kill_on_drop: false }`
[INFO] [stdout] 352488c8801662a761db978aa93f7c2ea6c158390ade4b5bebccd2db6a36abd7
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd2bc32a5cd4d1af5620eebba0a94ee0fec8271daa7b5e1020d21e85978d7db2
[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" "dd2bc32a5cd4d1af5620eebba0a94ee0fec8271daa7b5e1020d21e85978d7db2", kill_on_drop: false }`
[INFO] [stderr]    Compiling arf-strings v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "dd2bc32a5cd4d1af5620eebba0a94ee0fec8271daa7b5e1020d21e85978d7db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd2bc32a5cd4d1af5620eebba0a94ee0fec8271daa7b5e1020d21e85978d7db2", kill_on_drop: false }`
[INFO] [stdout] dd2bc32a5cd4d1af5620eebba0a94ee0fec8271daa7b5e1020d21e85978d7db2
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53b6ec2aa25283de3cf372272ff63e6132e0faefa2d843ccaa9d4ae9bb9eea5a
[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" "53b6ec2aa25283de3cf372272ff63e6132e0faefa2d843ccaa9d4ae9bb9eea5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling arf-strings v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "53b6ec2aa25283de3cf372272ff63e6132e0faefa2d843ccaa9d4ae9bb9eea5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b6ec2aa25283de3cf372272ff63e6132e0faefa2d843ccaa9d4ae9bb9eea5a", kill_on_drop: false }`
[INFO] [stdout] 53b6ec2aa25283de3cf372272ff63e6132e0faefa2d843ccaa9d4ae9bb9eea5a
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] f4b2a77acf23acbfae3fa651582d2545503b987dc0d839af3f26fb5ad3ad7086
[INFO] running `Command { std: "docker" "start" "-a" "f4b2a77acf23acbfae3fa651582d2545503b987dc0d839af3f26fb5ad3ad7086", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test posish::errors_from_bytes ... ok
[INFO] [stdout] test posish::not_utf8 ... ok
[INFO] [stdout] test posish::valid_utf8 ... ok
[INFO] [stdout] test posish::utf8_inputs ... ok
[INFO] [stdout] test posish::errors_from_str ... ok
[INFO] [stdout] test posish::arf_inputs ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arf_strings-4f37e35e880513bc
[INFO] [stdout] test posish::round_trip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arf-strings
[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" "f4b2a77acf23acbfae3fa651582d2545503b987dc0d839af3f26fb5ad3ad7086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b2a77acf23acbfae3fa651582d2545503b987dc0d839af3f26fb5ad3ad7086", kill_on_drop: false }`
[INFO] [stdout] f4b2a77acf23acbfae3fa651582d2545503b987dc0d839af3f26fb5ad3ad7086