[INFO] fetching crate tweet 0.3.0...
[INFO] testing tweet-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tweet 0.3.0 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate tweet 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tweet 0.3.0
[INFO] finished tweaking crates.io crate tweet 0.3.0
[INFO] tweaked toml for crates.io crate tweet 0.3.0 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57b043e27dd9c71ce3f96ae5fe4d2763a636ca961e9268731c0cc0a862fe019f
[INFO] running `Command { std: "docker" "start" "-a" "57b043e27dd9c71ce3f96ae5fe4d2763a636ca961e9268731c0cc0a862fe019f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57b043e27dd9c71ce3f96ae5fe4d2763a636ca961e9268731c0cc0a862fe019f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b043e27dd9c71ce3f96ae5fe4d2763a636ca961e9268731c0cc0a862fe019f", kill_on_drop: false }`
[INFO] [stdout] 57b043e27dd9c71ce3f96ae5fe4d2763a636ca961e9268731c0cc0a862fe019f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa397f0aa1549e71d63cb0bd547c9e6b90b34f4ff55ac89291df7925afe29398
[INFO] running `Command { std: "docker" "start" "-a" "aa397f0aa1549e71d63cb0bd547c9e6b90b34f4ff55ac89291df7925afe29398", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tweet v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.60s
[INFO] running `Command { std: "docker" "inspect" "aa397f0aa1549e71d63cb0bd547c9e6b90b34f4ff55ac89291df7925afe29398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa397f0aa1549e71d63cb0bd547c9e6b90b34f4ff55ac89291df7925afe29398", kill_on_drop: false }`
[INFO] [stdout] aa397f0aa1549e71d63cb0bd547c9e6b90b34f4ff55ac89291df7925afe29398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9680e39a92385bad2b17421df26b397af6dccf41e961678ab2d896db142c276
[INFO] running `Command { std: "docker" "start" "-a" "c9680e39a92385bad2b17421df26b397af6dccf41e961678ab2d896db142c276", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tweet v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "c9680e39a92385bad2b17421df26b397af6dccf41e961678ab2d896db142c276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9680e39a92385bad2b17421df26b397af6dccf41e961678ab2d896db142c276", kill_on_drop: false }`
[INFO] [stdout] c9680e39a92385bad2b17421df26b397af6dccf41e961678ab2d896db142c276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02ab503c38e9a1a2bb9e02e592a711ff21472efee27f1d05cd4f13c419d01e4e
[INFO] running `Command { std: "docker" "start" "-a" "02ab503c38e9a1a2bb9e02e592a711ff21472efee27f1d05cd4f13c419d01e4e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tweet-f60c92b78adfa3d9)
[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 tweet
[INFO] [stderr] error[E0659]: `tweet` is ambiguous (name vs any other name during import resolution)
[INFO] [stderr]   --> /opt/rustwide/workdir/src/model/mod.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub use tweet::{ExtendedTweet, Tweet};
[INFO] [stderr]    |         ^^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr]    = note: `tweet` could refer to a crate passed with `--extern`
[INFO] [stderr]    = help: use `::tweet` to refer to this crate unambiguously
[INFO] [stderr] note: `tweet` could also refer to the module defined here
[INFO] [stderr]   --> /opt/rustwide/workdir/src/model/mod.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | mod tweet;
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr]    = help: use `self::tweet` 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" "02ab503c38e9a1a2bb9e02e592a711ff21472efee27f1d05cd4f13c419d01e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ab503c38e9a1a2bb9e02e592a711ff21472efee27f1d05cd4f13c419d01e4e", kill_on_drop: false }`
[INFO] [stdout] 02ab503c38e9a1a2bb9e02e592a711ff21472efee27f1d05cd4f13c419d01e4e