[INFO] fetching crate flowutils 0.1.0...
[INFO] testing flowutils-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate flowutils 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate flowutils 0.1.0 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 flowutils 0.1.0
[INFO] finished tweaking crates.io crate flowutils 0.1.0
[INFO] tweaked toml for crates.io crate flowutils 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate flowutils 0.1.0 already has a lockfile, it will not be regenerated
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 232987f2bacd0d03c76a73c620c475a6dfdc07cf3b47cde6d75d7824d1d94da6
[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" "232987f2bacd0d03c76a73c620c475a6dfdc07cf3b47cde6d75d7824d1d94da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "232987f2bacd0d03c76a73c620c475a6dfdc07cf3b47cde6d75d7824d1d94da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232987f2bacd0d03c76a73c620c475a6dfdc07cf3b47cde6d75d7824d1d94da6", kill_on_drop: false }`
[INFO] [stdout] 232987f2bacd0d03c76a73c620c475a6dfdc07cf3b47cde6d75d7824d1d94da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5de7f8b2552276a84ac82de5defd78a79ab287898da47299f77fd0338040d4a0
[INFO] running `Command { std: "docker" "start" "-a" "5de7f8b2552276a84ac82de5defd78a79ab287898da47299f77fd0338040d4a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling flowutils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "5de7f8b2552276a84ac82de5defd78a79ab287898da47299f77fd0338040d4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de7f8b2552276a84ac82de5defd78a79ab287898da47299f77fd0338040d4a0", kill_on_drop: false }`
[INFO] [stdout] 5de7f8b2552276a84ac82de5defd78a79ab287898da47299f77fd0338040d4a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] b483a1549ca85c139ac2706c466ba1136e949e859cacf8bddeacb1ba3cc71ad1
[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" "b483a1549ca85c139ac2706c466ba1136e949e859cacf8bddeacb1ba3cc71ad1", kill_on_drop: false }`
[INFO] [stderr]    Compiling flowutils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "b483a1549ca85c139ac2706c466ba1136e949e859cacf8bddeacb1ba3cc71ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b483a1549ca85c139ac2706c466ba1136e949e859cacf8bddeacb1ba3cc71ad1", kill_on_drop: false }`
[INFO] [stdout] b483a1549ca85c139ac2706c466ba1136e949e859cacf8bddeacb1ba3cc71ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 291d39eb23b56edf763a295b54fc39fe01d73b787b12684af6714fab0b3fddc6
[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" "291d39eb23b56edf763a295b54fc39fe01d73b787b12684af6714fab0b3fddc6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flowutils-ca9957dd648bbc6b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests flowutils
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - unwrap_pattern (line 55) ... FAILED
[INFO] [stdout] test src/lib.rs - try_pattern (line 97) ... FAILED
[INFO] [stdout] test src/lib.rs - try_pattern (line 103) ... FAILED
[INFO] [stdout] test src/lib.rs - defer (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - unwrap_pattern (line 55) stdout ----
[INFO] [stdout] error: expected `=>`
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | let inner = flowutils::unwrap_pattern!(some_enum, T::A(x));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `flowutils::unwrap_pattern` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier or integer
[INFO] [stdout]   --> src/lib.rs:69:71
[INFO] [stdout]    |
[INFO] [stdout] 17 | let complex: usize = flowutils::unwrap_pattern!(some_enum, T::C{var3, _, var4}, var3);
[INFO] [stdout]    |                                                                       ^
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]    --> src/lib.rs:65:22
[INFO] [stdout]     |
[INFO] [stdout] 13  | let some_enum = T::B(String::new("str"), 3);
[INFO] [stdout]     |                      ^^^^^^^^^^^ ----- supplied 1 argument
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      expected 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 0 arguments but 1 argument was supplied
[INFO] [stdout]    --> src/lib.rs:68:22
[INFO] [stdout]     |
[INFO] [stdout] 16  | let some_enum = T::B(String::new("str"), 3);
[INFO] [stdout]     |                      ^^^^^^^^^^^ ----- supplied 1 argument
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      expected 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - try_pattern (line 97) stdout ----
[INFO] [stdout] error: cannot find macro `try_pattern` in this scope
[INFO] [stdout]  --> src/lib.rs:98:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | let a = try_pattern!(some_enum, A(x)=>x)?;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider importing this macro:
[INFO] [stdout]           flowutils::try_pattern
[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:98:41
[INFO] [stdout]   |
[INFO] [stdout] 2 |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_97_0() {
[INFO] [stdout]   |  ______________________________________-
[INFO] [stdout] 3 | | let a = try_pattern!(some_enum, A(x)=>x)?;
[INFO] [stdout]   | |                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 4 | | } _doctest_main_src_lib_rs_97_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] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - try_pattern (line 103) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `some_enum` in this scope
[INFO] [stdout]  --> src/lib.rs:104:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | let result = if let A(x) = some_enum {
[INFO] [stdout]   |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `A` in this scope
[INFO] [stdout]  --> src/lib.rs:104:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_103_0() {
[INFO] [stdout]   |                                                                       - help: you might be missing a type parameter: `<A>`
[INFO] [stdout] 3 | let result = if let A(x) = some_enum {
[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 `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:109:15
[INFO] [stdout]   |
[INFO] [stdout] 2 |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_103_0() {
[INFO] [stdout]   |  ______________________________________-
[INFO] [stdout] 3 | | let result = if let A(x) = some_enum {
[INFO] [stdout] 4 | |     Ok(x)
[INFO] [stdout] 5 | | } else {
[INFO] [stdout] ... |
[INFO] [stdout] 8 | | let a = result?;
[INFO] [stdout]   | |               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 9 | | } _doctest_main_src_lib_rs_103_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, E0425, E0531.
[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 - try_pattern (line 103)
[INFO] [stdout]     src/lib.rs - try_pattern (line 97)
[INFO] [stdout]     src/lib.rs - unwrap_pattern (line 55)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "291d39eb23b56edf763a295b54fc39fe01d73b787b12684af6714fab0b3fddc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "291d39eb23b56edf763a295b54fc39fe01d73b787b12684af6714fab0b3fddc6", kill_on_drop: false }`
[INFO] [stdout] 291d39eb23b56edf763a295b54fc39fe01d73b787b12684af6714fab0b3fddc6
