[INFO] fetching crate toy_ml 0.1.0...
[INFO] testing toy_ml-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate toy_ml 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate toy_ml 0.1.0
[INFO] finished tweaking crates.io crate toy_ml 0.1.0
[INFO] tweaked toml for crates.io crate toy_ml 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate toy_ml 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate toy_ml 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44e0420975eda7f128948e0803a81fc0deca6c4e76b517b6b502c390d1975167
[INFO] running `Command { std: "docker" "start" "-a" "44e0420975eda7f128948e0803a81fc0deca6c4e76b517b6b502c390d1975167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44e0420975eda7f128948e0803a81fc0deca6c4e76b517b6b502c390d1975167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e0420975eda7f128948e0803a81fc0deca6c4e76b517b6b502c390d1975167", kill_on_drop: false }`
[INFO] [stdout] 44e0420975eda7f128948e0803a81fc0deca6c4e76b517b6b502c390d1975167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ad7da7644ae7ee579c282b0b1ab07b1faa1929154357afcf824dd2fd13919b
[INFO] running `Command { std: "docker" "start" "-a" "d3ad7da7644ae7ee579c282b0b1ab07b1faa1929154357afcf824dd2fd13919b", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy_ml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "d3ad7da7644ae7ee579c282b0b1ab07b1faa1929154357afcf824dd2fd13919b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ad7da7644ae7ee579c282b0b1ab07b1faa1929154357afcf824dd2fd13919b", kill_on_drop: false }`
[INFO] [stdout] d3ad7da7644ae7ee579c282b0b1ab07b1faa1929154357afcf824dd2fd13919b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4be2154719ee55d6f06b8816625e4d4f008b9e63ad751376ed5d8786433e4011
[INFO] running `Command { std: "docker" "start" "-a" "4be2154719ee55d6f06b8816625e4d4f008b9e63ad751376ed5d8786433e4011", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy_ml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "4be2154719ee55d6f06b8816625e4d4f008b9e63ad751376ed5d8786433e4011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be2154719ee55d6f06b8816625e4d4f008b9e63ad751376ed5d8786433e4011", kill_on_drop: false }`
[INFO] [stdout] 4be2154719ee55d6f06b8816625e4d4f008b9e63ad751376ed5d8786433e4011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a81aead6e146f7f97f0aa8fdff0bfaafd9fadd06003bafaef2925d7a3fcddf1b
[INFO] running `Command { std: "docker" "start" "-a" "a81aead6e146f7f97f0aa8fdff0bfaafd9fadd06003bafaef2925d7a3fcddf1b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/toy_ml-a5d9c85f63bf1d2e)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/toy_ml-3fb915b93c8a671f)
[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] [stderr]    Doc-tests toy_ml
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - gradient_descent (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a81aead6e146f7f97f0aa8fdff0bfaafd9fadd06003bafaef2925d7a3fcddf1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81aead6e146f7f97f0aa8fdff0bfaafd9fadd06003bafaef2925d7a3fcddf1b", kill_on_drop: false }`
[INFO] [stdout] a81aead6e146f7f97f0aa8fdff0bfaafd9fadd06003bafaef2925d7a3fcddf1b