[INFO] fetching crate buchberger 0.1.0...
[INFO] testing buchberger-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate buchberger 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate buchberger 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fdcdb86110d1f29d1766616fdda1ca5d300ba679f9fe9bb0190bc0e870d3308
[INFO] running `Command { std: "docker" "start" "-a" "3fdcdb86110d1f29d1766616fdda1ca5d300ba679f9fe9bb0190bc0e870d3308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fdcdb86110d1f29d1766616fdda1ca5d300ba679f9fe9bb0190bc0e870d3308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fdcdb86110d1f29d1766616fdda1ca5d300ba679f9fe9bb0190bc0e870d3308", kill_on_drop: false }`
[INFO] [stdout] 3fdcdb86110d1f29d1766616fdda1ca5d300ba679f9fe9bb0190bc0e870d3308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 484188942f6d724e8e0300d443057bff492fa4235d0b6608c271007c1c5360dc
[INFO] running `Command { std: "docker" "start" "-a" "484188942f6d724e8e0300d443057bff492fa4235d0b6608c271007c1c5360dc", 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 4.55s
[INFO] running `Command { std: "docker" "inspect" "484188942f6d724e8e0300d443057bff492fa4235d0b6608c271007c1c5360dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484188942f6d724e8e0300d443057bff492fa4235d0b6608c271007c1c5360dc", kill_on_drop: false }`
[INFO] [stdout] 484188942f6d724e8e0300d443057bff492fa4235d0b6608c271007c1c5360dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bc70b78fe3a99fe21d15e32c8f50ebff7f15b0cf25de347020bee4e680de976
[INFO] running `Command { std: "docker" "start" "-a" "6bc70b78fe3a99fe21d15e32c8f50ebff7f15b0cf25de347020bee4e680de976", 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" "6bc70b78fe3a99fe21d15e32c8f50ebff7f15b0cf25de347020bee4e680de976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bc70b78fe3a99fe21d15e32c8f50ebff7f15b0cf25de347020bee4e680de976", kill_on_drop: false }`
[INFO] [stdout] 6bc70b78fe3a99fe21d15e32c8f50ebff7f15b0cf25de347020bee4e680de976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a81e2ea7d580dd886ee192a958866bd30a41b3eda8894ddf233061ca9757e795
[INFO] running `Command { std: "docker" "start" "-a" "a81e2ea7d580dd886ee192a958866bd30a41b3eda8894ddf233061ca9757e795", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buchberger-e010aa72c5ed8521)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buchberger-df6c45da473ceda3)
[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 buchberger
[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" "a81e2ea7d580dd886ee192a958866bd30a41b3eda8894ddf233061ca9757e795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81e2ea7d580dd886ee192a958866bd30a41b3eda8894ddf233061ca9757e795", kill_on_drop: false }`
[INFO] [stdout] a81e2ea7d580dd886ee192a958866bd30a41b3eda8894ddf233061ca9757e795