[INFO] fetching crate nyar-collatz 0.1.0...
[INFO] testing nyar-collatz-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate nyar-collatz 0.1.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate nyar-collatz 0.1.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nyar-collatz 0.1.0
[INFO] finished tweaking crates.io crate nyar-collatz 0.1.0
[INFO] tweaked toml for crates.io crate nyar-collatz 0.1.0 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89ec3a45fd0b1f18b48c36ad0679fb7566a8f0ca083765cab025041822cdfddb
[INFO] running `Command { std: "docker" "start" "-a" "89ec3a45fd0b1f18b48c36ad0679fb7566a8f0ca083765cab025041822cdfddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89ec3a45fd0b1f18b48c36ad0679fb7566a8f0ca083765cab025041822cdfddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ec3a45fd0b1f18b48c36ad0679fb7566a8f0ca083765cab025041822cdfddb", kill_on_drop: false }`
[INFO] [stdout] 89ec3a45fd0b1f18b48c36ad0679fb7566a8f0ca083765cab025041822cdfddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a8c652af8bc487715c18afe3d8c57a7f90b6aa9bae4e278fbfedf7e131b732a
[INFO] running `Command { std: "docker" "start" "-a" "2a8c652af8bc487715c18afe3d8c57a7f90b6aa9bae4e278fbfedf7e131b732a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling nyar-collatz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "2a8c652af8bc487715c18afe3d8c57a7f90b6aa9bae4e278fbfedf7e131b732a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8c652af8bc487715c18afe3d8c57a7f90b6aa9bae4e278fbfedf7e131b732a", kill_on_drop: false }`
[INFO] [stdout] 2a8c652af8bc487715c18afe3d8c57a7f90b6aa9bae4e278fbfedf7e131b732a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af0ecd15e0f2a2d195b2cd8e18d5a9e0703c6a078295fa4a765753484c78d84d
[INFO] running `Command { std: "docker" "start" "-a" "af0ecd15e0f2a2d195b2cd8e18d5a9e0703c6a078295fa4a765753484c78d84d", kill_on_drop: false }`
[INFO] [stderr]    Compiling nyar-collatz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "af0ecd15e0f2a2d195b2cd8e18d5a9e0703c6a078295fa4a765753484c78d84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0ecd15e0f2a2d195b2cd8e18d5a9e0703c6a078295fa4a765753484c78d84d", kill_on_drop: false }`
[INFO] [stdout] af0ecd15e0f2a2d195b2cd8e18d5a9e0703c6a078295fa4a765753484c78d84d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c279c5af79bf5d3c3ac92fdf855d1108ebb55c377293cadc6eb38514f10f1920
[INFO] running `Command { std: "docker" "start" "-a" "c279c5af79bf5d3c3ac92fdf855d1108ebb55c377293cadc6eb38514f10f1920", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz-485f35578d996d33)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test collatz64::test::test_longest_collatz ... ok
[INFO] [stdout] test collatz64::test::collatz_13 ... ok
[INFO] [stdout] test collatz::test::collatz_13 ... ok
[INFO] [stdout] test collatz64::test::test_longest_collatz_memo ... ok
[INFO] [stdout] test collatz64::test::collatz_0 - should panic ... ok
[INFO] [stdout] test collatz::test::collatz_0 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests collatz
[INFO] [stderr] error[E0659]: `collatz` is ambiguous
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use collatz::Collatz;
[INFO] [stderr]   |         ^^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: ambiguous because of multiple potential import sources
[INFO] [stderr]   = note: `collatz` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::collatz` to refer to this crate unambiguously
[INFO] [stderr] note: `collatz` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub mod collatz;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::collatz` 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" "c279c5af79bf5d3c3ac92fdf855d1108ebb55c377293cadc6eb38514f10f1920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c279c5af79bf5d3c3ac92fdf855d1108ebb55c377293cadc6eb38514f10f1920", kill_on_drop: false }`
[INFO] [stdout] c279c5af79bf5d3c3ac92fdf855d1108ebb55c377293cadc6eb38514f10f1920