[INFO] fetching crate eyre-impl 0.1.0...
[INFO] testing eyre-impl-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate eyre-impl 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate eyre-impl 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eyre-impl 0.1.0
[INFO] finished tweaking crates.io crate eyre-impl 0.1.0
[INFO] tweaked toml for crates.io crate eyre-impl 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-2021-01-01" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 099a8434b3bf2932eba18df37323eb5c8e940ea4da14c13750cbfb1dbbf0ccb5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "099a8434b3bf2932eba18df37323eb5c8e940ea4da14c13750cbfb1dbbf0ccb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "099a8434b3bf2932eba18df37323eb5c8e940ea4da14c13750cbfb1dbbf0ccb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099a8434b3bf2932eba18df37323eb5c8e940ea4da14c13750cbfb1dbbf0ccb5", kill_on_drop: false }`
[INFO] [stdout] 099a8434b3bf2932eba18df37323eb5c8e940ea4da14c13750cbfb1dbbf0ccb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4869cbb789072a490932d5b8df9cc0dcdcbeb532f07f22cf9e004138707e55e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4869cbb789072a490932d5b8df9cc0dcdcbeb532f07f22cf9e004138707e55e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling eyre-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "4869cbb789072a490932d5b8df9cc0dcdcbeb532f07f22cf9e004138707e55e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4869cbb789072a490932d5b8df9cc0dcdcbeb532f07f22cf9e004138707e55e6", kill_on_drop: false }`
[INFO] [stdout] 4869cbb789072a490932d5b8df9cc0dcdcbeb532f07f22cf9e004138707e55e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07bc7467e01af6ddb556b6cba4a22f575c546b8621d039a9fba890316679d118
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07bc7467e01af6ddb556b6cba4a22f575c546b8621d039a9fba890316679d118", kill_on_drop: false }`
[INFO] [stderr]    Compiling eyre-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "07bc7467e01af6ddb556b6cba4a22f575c546b8621d039a9fba890316679d118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07bc7467e01af6ddb556b6cba4a22f575c546b8621d039a9fba890316679d118", kill_on_drop: false }`
[INFO] [stdout] 07bc7467e01af6ddb556b6cba4a22f575c546b8621d039a9fba890316679d118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e5d08b2258a5474a1fd010a1a9520b844cf30b42d72cb5aabd2b3402bfc8c10
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e5d08b2258a5474a1fd010a1a9520b844cf30b42d72cb5aabd2b3402bfc8c10", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eyre_impl-005a2eed60bee7a5
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::no_digits ... ok
[INFO] [stdout] test tests::one_digit ... ok
[INFO] [stdout] test tests::two_digits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests eyre-impl
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - IntoErrorReporter (line 58) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - IntoErrorReporter (line 58) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `fallible_fn` in this scope
[INFO] [stdout]  --> src/lib.rs:59:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | let val = fallible_fn()
[INFO] [stdout]   |           ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]  --> src/lib.rs:59:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |    fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_58_0() {
[INFO] [stdout]   |   ______________________________________-
[INFO] [stdout] 3 |  | let val = fallible_fn()
[INFO] [stdout]   |  |___________^
[INFO] [stdout] 4 | ||             .note("This function can only be used in certain situations")
[INFO] [stdout] 5 | ||             .warn("Be careful not to use this fn in this specific situation")?;
[INFO] [stdout]   | ||______________________________________________________________________________^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 6 |  | }; _doctest_main_src_lib_rs_58_0() }
[INFO] [stdout]   |  |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - IntoErrorReporter (line 58)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "9e5d08b2258a5474a1fd010a1a9520b844cf30b42d72cb5aabd2b3402bfc8c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5d08b2258a5474a1fd010a1a9520b844cf30b42d72cb5aabd2b3402bfc8c10", kill_on_drop: false }`
[INFO] [stdout] 9e5d08b2258a5474a1fd010a1a9520b844cf30b42d72cb5aabd2b3402bfc8c10