[INFO] fetching crate knarkzel 0.6.0...
[INFO] testing knarkzel-0.6.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate knarkzel 0.6.0 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate knarkzel 0.6.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate knarkzel 0.6.0
[INFO] finished tweaking crates.io crate knarkzel 0.6.0
[INFO] tweaked toml for crates.io crate knarkzel 0.6.0 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf24321921dbebb13599c24988e2c426194c26f17a17305013c6ea6bc1cfc2ac
[INFO] running `Command { std: "docker" "start" "-a" "bf24321921dbebb13599c24988e2c426194c26f17a17305013c6ea6bc1cfc2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf24321921dbebb13599c24988e2c426194c26f17a17305013c6ea6bc1cfc2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf24321921dbebb13599c24988e2c426194c26f17a17305013c6ea6bc1cfc2ac", kill_on_drop: false }`
[INFO] [stdout] bf24321921dbebb13599c24988e2c426194c26f17a17305013c6ea6bc1cfc2ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2deb4227d8bca618d76c7d30828df36d3b59c2f0f8af398bf08c5ea6c81dd7c8
[INFO] running `Command { std: "docker" "start" "-a" "2deb4227d8bca618d76c7d30828df36d3b59c2f0f8af398bf08c5ea6c81dd7c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling knarkzel v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "2deb4227d8bca618d76c7d30828df36d3b59c2f0f8af398bf08c5ea6c81dd7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2deb4227d8bca618d76c7d30828df36d3b59c2f0f8af398bf08c5ea6c81dd7c8", kill_on_drop: false }`
[INFO] [stdout] 2deb4227d8bca618d76c7d30828df36d3b59c2f0f8af398bf08c5ea6c81dd7c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcb3ad205ccd03d4ac45414cbb1f4f475964f8dd496902c027372e4786500915
[INFO] running `Command { std: "docker" "start" "-a" "bcb3ad205ccd03d4ac45414cbb1f4f475964f8dd496902c027372e4786500915", kill_on_drop: false }`
[INFO] [stderr]    Compiling knarkzel v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "bcb3ad205ccd03d4ac45414cbb1f4f475964f8dd496902c027372e4786500915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcb3ad205ccd03d4ac45414cbb1f4f475964f8dd496902c027372e4786500915", kill_on_drop: false }`
[INFO] [stdout] bcb3ad205ccd03d4ac45414cbb1f4f475964f8dd496902c027372e4786500915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ac2df43824637f682682f2cdddf98bbc1c6d8e6412f8ca4c2e4fc95b3072606
[INFO] running `Command { std: "docker" "start" "-a" "8ac2df43824637f682682f2cdddf98bbc1c6d8e6412f8ca4c2e4fc95b3072606", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/knarkzel-f46af02f78322460)
[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 knarkzel
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - prelude (line 96) ... FAILED
[INFO] [stdout] test src/lib.rs - prelude (line 108) ... FAILED
[INFO] [stdout] test src/lib.rs - prelude (line 76) ... FAILED
[INFO] [stdout] test src/lib.rs - prelude (line 83) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - prelude (line 96) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Random`
[INFO] [stdout]  --> src/lib.rs:97:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut random = Random::new().with_seed(1234);
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use knarkzel::prelude::Random;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - prelude (line 108) stdout ----
[INFO] [stdout] error[E0599]: no method named `collect_vec` found for struct `Map` in the current scope
[INFO] [stdout]  --> src/lib.rs:113:6
[INFO] [stdout]   |
[INFO] [stdout] 7 |     .collect_vec();
[INFO] [stdout]   |      ^^^^^^^^^^^ method not found in `Map<std::slice::Iter<'_, {integer}>, [closure@src/lib.rs:6:10: 6:19]>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - prelude (line 76) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `slurp` in this scope
[INFO] [stdout]  --> src/lib.rs:77:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let columns = slurp("mock.csv")?;
[INFO] [stdout]   |               ^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use knarkzel::slurp;
[INFO] [stdout]   |
[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 `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:77:32
[INFO] [stdout]   |
[INFO] [stdout] 2 |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_76_0() {
[INFO] [stdout]   |  ______________________________________-
[INFO] [stdout] 3 | | let columns = slurp("mock.csv")?;
[INFO] [stdout]   | |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4 | | } _doctest_main_src_lib_rs_76_0() }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_residual`
[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] ---- src/lib.rs - prelude (line 83) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Regex`
[INFO] [stdout]  --> src/lib.rs:85:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | let regex = Regex::new(r"'([^']+)'\s+\((\d{4})\)")?;
[INFO] [stdout]   |             ^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 | use knarkzel::prelude::Regex;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use regex::Regex;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use regex::bytes::Regex;
[INFO] [stdout]   |
[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 `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:85:51
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_83_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let text = "Not my favorite movie: 'Citizen Kane' (1941).";
[INFO] [stdout] 4  | | let regex = Regex::new(r"'([^']+)'\s+\((\d{4})\)")?;
[INFO] [stdout]    | |                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5  | | let captures = regex.captures(text)?;
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | assert_eq!(&captures[2], "1941");
[INFO] [stdout] 10 | | } _doctest_main_src_lib_rs_83_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_residual`
[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 `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 2  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_83_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 3  | | let text = "Not my favorite movie: 'Citizen Kane' (1941).";
[INFO] [stdout] 4  | | let regex = Regex::new(r"'([^']+)'\s+\((\d{4})\)")?;
[INFO] [stdout] 5  | | let captures = regex.captures(text)?;
[INFO] [stdout]    | |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | assert_eq!(&captures[2], "1941");
[INFO] [stdout] 10 | | } _doctest_main_src_lib_rs_83_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[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 - prelude (line 108)
[INFO] [stdout]     src/lib.rs - prelude (line 76)
[INFO] [stdout]     src/lib.rs - prelude (line 83)
[INFO] [stdout]     src/lib.rs - prelude (line 96)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "8ac2df43824637f682682f2cdddf98bbc1c6d8e6412f8ca4c2e4fc95b3072606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac2df43824637f682682f2cdddf98bbc1c6d8e6412f8ca4c2e4fc95b3072606", kill_on_drop: false }`
[INFO] [stdout] 8ac2df43824637f682682f2cdddf98bbc1c6d8e6412f8ca4c2e4fc95b3072606
