[INFO] fetching crate breb 0.1.2...
[INFO] checking breb-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate breb 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate breb 0.1.2
[INFO] finished tweaking crates.io crate breb 0.1.2
[INFO] tweaked toml for crates.io crate breb 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate breb 0.1.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate breb 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 148cead3f63a080c1eed249a2c0bb741a1b40a37400acaebe4973a0f6675285e
[INFO] running `Command { std: "docker" "start" "-a" "148cead3f63a080c1eed249a2c0bb741a1b40a37400acaebe4973a0f6675285e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "148cead3f63a080c1eed249a2c0bb741a1b40a37400acaebe4973a0f6675285e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "148cead3f63a080c1eed249a2c0bb741a1b40a37400acaebe4973a0f6675285e", kill_on_drop: false }`
[INFO] [stdout] 148cead3f63a080c1eed249a2c0bb741a1b40a37400acaebe4973a0f6675285e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1efa4e2e74368b35dd0b4667d8eed97e1690f180fb6775a3e2e4563f6a4b9b58
[INFO] running `Command { std: "docker" "start" "-a" "1efa4e2e74368b35dd0b4667d8eed97e1690f180fb6775a3e2e4563f6a4b9b58", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking dtoa v1.0.9
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking pure-rust-locales v0.8.1
[INFO] [stderr]     Checking servo_arc v0.4.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking ego-tree v0.9.0
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking quick-xml v0.36.2
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking string_cache v0.8.7
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling html5ever v0.29.0
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling maud_macros v0.26.0
[INFO] [stderr]     Checking diligent-date-parser v0.1.4
[INFO] [stderr]     Checking maud v0.26.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]     Checking derive_builder v0.20.2
[INFO] [stderr]    Compiling selectors v0.26.0
[INFO] [stderr]     Checking atom_syndication v0.12.4
[INFO] [stderr]    Compiling markup5ever v0.14.0
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking cssparser v0.34.0
[INFO] [stderr]     Checking scraper v0.21.0
[INFO] [stderr]     Checking breb v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |                           $opt: meta.remove([$($oname,)? stringify!($opt)][0])
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 94 | |                             .and_then(|mut vec| vec.pop())
[INFO] [stdout] 95 | |                             .map(|val| val.parse()).transpose()
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/page.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl_from_doc_meta!(Page:
[INFO] [stdout] 19 | |     opt { title }
[INFO] [stdout] 20 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:95:19
[INFO] [stdout]    |
[INFO] [stdout] 95 |                               .map(|val| val.parse()).transpose()
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/page.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl_from_doc_meta!(Page:
[INFO] [stdout] 19 | |     opt { title }
[INFO] [stdout] 20 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |                           $req: meta.remove([$($rname,)? stringify!($req)][0])
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 82 | |                             .and_then(|mut vec| vec.pop())
[INFO] [stdout] 83 | |                             .ok_or_else(|| ::std::io::Error::new(
[INFO] [stdout] 84 | |                                 ::std::io::ErrorKind::InvalidData,
[INFO] [stdout] 85 | |                                 concat!("missing required property: ", stringify!($req)),
[INFO] [stdout] 86 | |                             ))?
[INFO] [stdout] 87 | |                             .parse().map_err(|e| ::std::io::Error::new(
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/post.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / impl_from_doc_meta!(Post:
[INFO] [stdout] 30 | |     req { title, subtitle }
[INFO] [stdout] 31 | |     opt { published, locale }
[INFO] [stdout] 32 | |     vec { "tag" => tags }
[INFO] [stdout] 33 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<String>, Infallible>
[INFO] [stdout]    --> src/parse/mod.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |                           $vec: meta.remove([$($vname,)? stringify!($vec)][0])
[INFO] [stdout]     |  _______________________________^
[INFO] [stdout] 103 | |                             .unwrap_or(vec![])
[INFO] [stdout] 104 | |                             .into_iter().map(|v| v.parse())
[INFO] [stdout] 105 | |                             .collect::<Result<_, _>>()
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/serve/post.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout]  29 | / impl_from_doc_meta!(Post:
[INFO] [stdout]  30 | |     req { title, subtitle }
[INFO] [stdout]  31 | |     opt { published, locale }
[INFO] [stdout]  32 | |     vec { "tag" => tags }
[INFO] [stdout]  33 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/parse/mod.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |                               .into_iter().map(|v| v.parse())
[INFO] [stdout]     |                                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/serve/post.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout]  29 | / impl_from_doc_meta!(Post:
[INFO] [stdout]  30 | |     req { title, subtitle }
[INFO] [stdout]  31 | |     opt { published, locale }
[INFO] [stdout]  32 | |     vec { "tag" => tags }
[INFO] [stdout]  33 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breb` (lib) due to 5 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |                           $opt: meta.remove([$($oname,)? stringify!($opt)][0])
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 94 | |                             .and_then(|mut vec| vec.pop())
[INFO] [stdout] 95 | |                             .map(|val| val.parse()).transpose()
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/page.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl_from_doc_meta!(Page:
[INFO] [stdout] 19 | |     opt { title }
[INFO] [stdout] 20 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:95:19
[INFO] [stdout]    |
[INFO] [stdout] 95 |                               .map(|val| val.parse()).transpose()
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/page.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / impl_from_doc_meta!(Page:
[INFO] [stdout] 19 | |     opt { title }
[INFO] [stdout] 20 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parse/mod.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |                           $req: meta.remove([$($rname,)? stringify!($req)][0])
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 82 | |                             .and_then(|mut vec| vec.pop())
[INFO] [stdout] 83 | |                             .ok_or_else(|| ::std::io::Error::new(
[INFO] [stdout] 84 | |                                 ::std::io::ErrorKind::InvalidData,
[INFO] [stdout] 85 | |                                 concat!("missing required property: ", stringify!($req)),
[INFO] [stdout] 86 | |                             ))?
[INFO] [stdout] 87 | |                             .parse().map_err(|e| ::std::io::Error::new(
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serve/post.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / impl_from_doc_meta!(Post:
[INFO] [stdout] 30 | |     req { title, subtitle }
[INFO] [stdout] 31 | |     opt { published, locale }
[INFO] [stdout] 32 | |     vec { "tag" => tags }
[INFO] [stdout] 33 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<String>, Infallible>
[INFO] [stdout]    --> src/parse/mod.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |                           $vec: meta.remove([$($vname,)? stringify!($vec)][0])
[INFO] [stdout]     |  _______________________________^
[INFO] [stdout] 103 | |                             .unwrap_or(vec![])
[INFO] [stdout] 104 | |                             .into_iter().map(|v| v.parse())
[INFO] [stdout] 105 | |                             .collect::<Result<_, _>>()
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/serve/post.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout]  29 | / impl_from_doc_meta!(Post:
[INFO] [stdout]  30 | |     req { title, subtitle }
[INFO] [stdout]  31 | |     opt { published, locale }
[INFO] [stdout]  32 | |     vec { "tag" => tags }
[INFO] [stdout]  33 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/parse/mod.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |                               .into_iter().map(|v| v.parse())
[INFO] [stdout]     |                                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/serve/post.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout]  29 | / impl_from_doc_meta!(Post:
[INFO] [stdout]  30 | |     req { title, subtitle }
[INFO] [stdout]  31 | |     opt { published, locale }
[INFO] [stdout]  32 | |     vec { "tag" => tags }
[INFO] [stdout]  33 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_from_doc_meta` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breb` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "1efa4e2e74368b35dd0b4667d8eed97e1690f180fb6775a3e2e4563f6a4b9b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efa4e2e74368b35dd0b4667d8eed97e1690f180fb6775a3e2e4563f6a4b9b58", kill_on_drop: false }`
[INFO] [stdout] 1efa4e2e74368b35dd0b4667d8eed97e1690f180fb6775a3e2e4563f6a4b9b58
