[INFO] fetching crate gibberish 0.1.0...
[INFO] testing gibberish-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate gibberish 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gibberish 0.1.0 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 gibberish 0.1.0
[INFO] finished tweaking crates.io crate gibberish 0.1.0
[INFO] tweaked toml for crates.io crate gibberish 0.1.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ignore v0.4.17
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.2.0
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[INFO] [stderr]   Downloaded globwalk v0.3.1
[INFO] [stderr]   Downloaded quicli v0.4.0
[INFO] [stderr]   Downloaded sodiumoxide v0.2.6
[INFO] [stderr]   Downloaded msgpack_simple v1.0.2
[INFO] [stderr]   Downloaded rpassword v2.1.0
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded libsodium-sys v0.2.6
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 8760a09f9dd109f2ba03433065141e6d7d417d0251f52757b059028c2de29514
[INFO] running `Command { std: "docker" "start" "-a" "8760a09f9dd109f2ba03433065141e6d7d417d0251f52757b059028c2de29514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8760a09f9dd109f2ba03433065141e6d7d417d0251f52757b059028c2de29514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8760a09f9dd109f2ba03433065141e6d7d417d0251f52757b059028c2de29514", kill_on_drop: false }`
[INFO] [stdout] 8760a09f9dd109f2ba03433065141e6d7d417d0251f52757b059028c2de29514
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 9184a14487531535e8ff58a459b88305361eb96372cfdc46685db3a6953d3273
[INFO] running `Command { std: "docker" "start" "-a" "9184a14487531535e8ff58a459b88305361eb96372cfdc46685db3a6953d3273", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]    Compiling rpassword v2.1.0
[INFO] [stderr]    Compiling msgpack_simple v1.0.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]    Compiling globwalk v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling clap-verbosity-flag v0.2.0
[INFO] [stderr]    Compiling quicli v0.4.0
[INFO] [stderr]    Compiling sodiumoxide v0.2.6
[INFO] [stderr]    Compiling gibberish v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 01s
[INFO] running `Command { std: "docker" "inspect" "9184a14487531535e8ff58a459b88305361eb96372cfdc46685db3a6953d3273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9184a14487531535e8ff58a459b88305361eb96372cfdc46685db3a6953d3273", kill_on_drop: false }`
[INFO] [stdout] 9184a14487531535e8ff58a459b88305361eb96372cfdc46685db3a6953d3273
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4cbdac58d6f12a3ef2b260ff2d27f0d1f34a56e97aea1bc43388a9fa9b5dacc
[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" "d4cbdac58d6f12a3ef2b260ff2d27f0d1f34a56e97aea1bc43388a9fa9b5dacc", kill_on_drop: false }`
[INFO] [stderr]    Compiling gibberish v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "d4cbdac58d6f12a3ef2b260ff2d27f0d1f34a56e97aea1bc43388a9fa9b5dacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4cbdac58d6f12a3ef2b260ff2d27f0d1f34a56e97aea1bc43388a9fa9b5dacc", kill_on_drop: false }`
[INFO] [stdout] d4cbdac58d6f12a3ef2b260ff2d27f0d1f34a56e97aea1bc43388a9fa9b5dacc
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 4573f57b63c28c755ba7ceea38f9739ad1683c42b9541549560c14c6968e6ac6
[INFO] running `Command { std: "docker" "start" "-a" "4573f57b63c28c755ba7ceea38f9739ad1683c42b9541549560c14c6968e6ac6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gibberish-0d0c08b1fbfb664f
[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" "4573f57b63c28c755ba7ceea38f9739ad1683c42b9541549560c14c6968e6ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4573f57b63c28c755ba7ceea38f9739ad1683c42b9541549560c14c6968e6ac6", kill_on_drop: false }`
[INFO] [stdout] 4573f57b63c28c755ba7ceea38f9739ad1683c42b9541549560c14c6968e6ac6