[INFO] fetching crate buchberger 0.1.0...
[INFO] testing buchberger-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate buchberger 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buchberger 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buchberger 0.1.0
[INFO] finished tweaking crates.io crate buchberger 0.1.0
[INFO] tweaked toml for crates.io crate buchberger 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef55423a4cad6cb19afa66ac2994c4d89b66a7dc1ddfd67c9aacaf7c2b7a363e
[INFO] running `Command { std: "docker" "start" "-a" "ef55423a4cad6cb19afa66ac2994c4d89b66a7dc1ddfd67c9aacaf7c2b7a363e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef55423a4cad6cb19afa66ac2994c4d89b66a7dc1ddfd67c9aacaf7c2b7a363e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef55423a4cad6cb19afa66ac2994c4d89b66a7dc1ddfd67c9aacaf7c2b7a363e", kill_on_drop: false }`
[INFO] [stdout] ef55423a4cad6cb19afa66ac2994c4d89b66a7dc1ddfd67c9aacaf7c2b7a363e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40ee74b00a9242a7f48718efaf502a20bc3188099bf930100fed7e2de0cfdd21
[INFO] running `Command { std: "docker" "start" "-a" "40ee74b00a9242a7f48718efaf502a20bc3188099bf930100fed7e2de0cfdd21", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling buchberger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "40ee74b00a9242a7f48718efaf502a20bc3188099bf930100fed7e2de0cfdd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ee74b00a9242a7f48718efaf502a20bc3188099bf930100fed7e2de0cfdd21", kill_on_drop: false }`
[INFO] [stdout] 40ee74b00a9242a7f48718efaf502a20bc3188099bf930100fed7e2de0cfdd21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e10d978d3ddf8657d4fc691221f483aee1a65deca47bb5937165a55b3929e247
[INFO] running `Command { std: "docker" "start" "-a" "e10d978d3ddf8657d4fc691221f483aee1a65deca47bb5937165a55b3929e247", kill_on_drop: false }`
[INFO] [stderr]    Compiling buchberger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "e10d978d3ddf8657d4fc691221f483aee1a65deca47bb5937165a55b3929e247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10d978d3ddf8657d4fc691221f483aee1a65deca47bb5937165a55b3929e247", kill_on_drop: false }`
[INFO] [stdout] e10d978d3ddf8657d4fc691221f483aee1a65deca47bb5937165a55b3929e247
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87cadfe4676fa93775625938effa6f48d5a17eb0a37b527bf130ddc05b1dccbb
[INFO] running `Command { std: "docker" "start" "-a" "87cadfe4676fa93775625938effa6f48d5a17eb0a37b527bf130ddc05b1dccbb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buchberger-2864f65789474f2f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buchberger-626a64f2008e081f)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests buchberger
[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] [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] error[E0659]: `buchberger` is ambiguous
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub use buchberger::groebner;
[INFO] [stderr]    |         ^^^^^^^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr]    = note: ambiguous because of multiple potential import sources
[INFO] [stderr]    = note: `buchberger` could refer to a crate passed with `--extern`
[INFO] [stderr]    = help: use `::buchberger` to refer to this crate unambiguously
[INFO] [stderr] note: `buchberger` could also refer to the module defined here
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | mod buchberger;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: use `crate::buchberger` 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" "87cadfe4676fa93775625938effa6f48d5a17eb0a37b527bf130ddc05b1dccbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87cadfe4676fa93775625938effa6f48d5a17eb0a37b527bf130ddc05b1dccbb", kill_on_drop: false }`
[INFO] [stdout] 87cadfe4676fa93775625938effa6f48d5a17eb0a37b527bf130ddc05b1dccbb