[INFO] fetching crate vector-space 0.1.0...
[INFO] testing vector-space-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vector-space 0.1.0 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate vector-space 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vector-space 0.1.0
[INFO] finished tweaking crates.io crate vector-space 0.1.0
[INFO] tweaked toml for crates.io crate vector-space 0.1.0 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caa7c144194ea6ed60ed157e9083917c1843a9e4beec6d2d0c83c79421ea2a37
[INFO] running `Command { std: "docker" "start" "-a" "caa7c144194ea6ed60ed157e9083917c1843a9e4beec6d2d0c83c79421ea2a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caa7c144194ea6ed60ed157e9083917c1843a9e4beec6d2d0c83c79421ea2a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa7c144194ea6ed60ed157e9083917c1843a9e4beec6d2d0c83c79421ea2a37", kill_on_drop: false }`
[INFO] [stdout] caa7c144194ea6ed60ed157e9083917c1843a9e4beec6d2d0c83c79421ea2a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc5e626e6c5d304eeb8703fdacb8e88772bd9939322b42fc7e0fa43435d187f
[INFO] running `Command { std: "docker" "start" "-a" "4bc5e626e6c5d304eeb8703fdacb8e88772bd9939322b42fc7e0fa43435d187f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vector-space v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "4bc5e626e6c5d304eeb8703fdacb8e88772bd9939322b42fc7e0fa43435d187f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc5e626e6c5d304eeb8703fdacb8e88772bd9939322b42fc7e0fa43435d187f", kill_on_drop: false }`
[INFO] [stdout] 4bc5e626e6c5d304eeb8703fdacb8e88772bd9939322b42fc7e0fa43435d187f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d496685b44068d9feed48fafdc09e7b3b0f7ea07d43409c14a7c15d7c021613a
[INFO] running `Command { std: "docker" "start" "-a" "d496685b44068d9feed48fafdc09e7b3b0f7ea07d43409c14a7c15d7c021613a", kill_on_drop: false }`
[INFO] [stderr]    Compiling vector-space v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "d496685b44068d9feed48fafdc09e7b3b0f7ea07d43409c14a7c15d7c021613a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d496685b44068d9feed48fafdc09e7b3b0f7ea07d43409c14a7c15d7c021613a", kill_on_drop: false }`
[INFO] [stdout] d496685b44068d9feed48fafdc09e7b3b0f7ea07d43409c14a7c15d7c021613a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d427283b45167cd9d933dcc91b3c6de0785d972e26056f602bd0787358f60b2
[INFO] running `Command { std: "docker" "start" "-a" "5d427283b45167cd9d933dcc91b3c6de0785d972e26056f602bd0787358f60b2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vector_space-1f63d0b68866aec2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vector-space
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error[E0659]: `vector_space` is ambiguous (name vs any other name during import resolution)
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub use vector_space::VectorSpace;
[INFO] [stderr]    |         ^^^^^^^^^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr]    = note: `vector_space` could refer to a crate passed with `--extern`
[INFO] [stderr]    = help: use `::vector_space` to refer to this crate unambiguously
[INFO] [stderr] note: `vector_space` could also refer to the module defined here
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | mod vector_space;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: use `crate::vector_space` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "5d427283b45167cd9d933dcc91b3c6de0785d972e26056f602bd0787358f60b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d427283b45167cd9d933dcc91b3c6de0785d972e26056f602bd0787358f60b2", kill_on_drop: false }`
[INFO] [stdout] 5d427283b45167cd9d933dcc91b3c6de0785d972e26056f602bd0787358f60b2