[INFO] fetching crate liblearn 0.1.1...
[INFO] testing liblearn-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate liblearn 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate liblearn 0.1.1
[INFO] finished tweaking crates.io crate liblearn 0.1.1
[INFO] tweaked toml for crates.io crate liblearn 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate liblearn 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f0772e1ae5d4de3c97701475b042f475078ca465bb43a0c00a1143f7e90c62b
[INFO] running `Command { std: "docker" "start" "-a" "5f0772e1ae5d4de3c97701475b042f475078ca465bb43a0c00a1143f7e90c62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f0772e1ae5d4de3c97701475b042f475078ca465bb43a0c00a1143f7e90c62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0772e1ae5d4de3c97701475b042f475078ca465bb43a0c00a1143f7e90c62b", kill_on_drop: false }`
[INFO] [stdout] 5f0772e1ae5d4de3c97701475b042f475078ca465bb43a0c00a1143f7e90c62b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4050694459dd1d833f8bdfb3b0714450884ca29bfa7f8f33bb86e6a7b468d7d6
[INFO] running `Command { std: "docker" "start" "-a" "4050694459dd1d833f8bdfb3b0714450884ca29bfa7f8f33bb86e6a7b468d7d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling liblearn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "4050694459dd1d833f8bdfb3b0714450884ca29bfa7f8f33bb86e6a7b468d7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4050694459dd1d833f8bdfb3b0714450884ca29bfa7f8f33bb86e6a7b468d7d6", kill_on_drop: false }`
[INFO] [stdout] 4050694459dd1d833f8bdfb3b0714450884ca29bfa7f8f33bb86e6a7b468d7d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f5ab1c2c4b6240e049a4d100e8b91635804d229d878315db533a6e73104c1d3
[INFO] running `Command { std: "docker" "start" "-a" "4f5ab1c2c4b6240e049a4d100e8b91635804d229d878315db533a6e73104c1d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling liblearn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "4f5ab1c2c4b6240e049a4d100e8b91635804d229d878315db533a6e73104c1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5ab1c2c4b6240e049a4d100e8b91635804d229d878315db533a6e73104c1d3", kill_on_drop: false }`
[INFO] [stdout] 4f5ab1c2c4b6240e049a4d100e8b91635804d229d878315db533a6e73104c1d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 612d67d1ef122f7f044ccf5607177077349daf32655fe3f7f4ba06e0eb6938a9
[INFO] running `Command { std: "docker" "start" "-a" "612d67d1ef122f7f044ccf5607177077349daf32655fe3f7f4ba06e0eb6938a9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/liblearn-f5c6c0272fc17ae2)
[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] [stderr]    Doc-tests liblearn
[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" "612d67d1ef122f7f044ccf5607177077349daf32655fe3f7f4ba06e0eb6938a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612d67d1ef122f7f044ccf5607177077349daf32655fe3f7f4ba06e0eb6938a9", kill_on_drop: false }`
[INFO] [stdout] 612d67d1ef122f7f044ccf5607177077349daf32655fe3f7f4ba06e0eb6938a9