[INFO] fetching crate potential_utf 0.1.3...
[INFO] testing potential_utf-0.1.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate potential_utf 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate potential_utf 0.1.3
[INFO] finished tweaking crates.io crate potential_utf 0.1.3
[INFO] tweaked toml for crates.io crate potential_utf 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate potential_utf 0.1.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate potential_utf 0.1.3 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded databake v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9d31202cc8964d684743c71e859e87c65348025063c70e18e27dbd833eea206
[INFO] running `Command { std: "docker" "start" "-a" "f9d31202cc8964d684743c71e859e87c65348025063c70e18e27dbd833eea206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9d31202cc8964d684743c71e859e87c65348025063c70e18e27dbd833eea206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d31202cc8964d684743c71e859e87c65348025063c70e18e27dbd833eea206", kill_on_drop: false }`
[INFO] [stdout] f9d31202cc8964d684743c71e859e87c65348025063c70e18e27dbd833eea206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adefdd1f287750fb08f1ecba16d4b28a3ca294e78a5c36e5340e211eea790028
[INFO] running `Command { std: "docker" "start" "-a" "adefdd1f287750fb08f1ecba16d4b28a3ca294e78a5c36e5340e211eea790028", kill_on_drop: false }`
[INFO] [stderr]    Compiling potential_utf v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "adefdd1f287750fb08f1ecba16d4b28a3ca294e78a5c36e5340e211eea790028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adefdd1f287750fb08f1ecba16d4b28a3ca294e78a5c36e5340e211eea790028", kill_on_drop: false }`
[INFO] [stdout] adefdd1f287750fb08f1ecba16d4b28a3ca294e78a5c36e5340e211eea790028
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0f63bae51e819e4b6303a952e0911f3041f406e9038319ca67462b8894acd4
[INFO] running `Command { std: "docker" "start" "-a" "bc0f63bae51e819e4b6303a952e0911f3041f406e9038319ca67462b8894acd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling potential_utf v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `zerovec`
[INFO] [stdout]    --> src/uchar.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |     use zerovec::ZeroVec;
[INFO] [stdout]     |         ^^^^^^^ use of unresolved module or unlinked crate `zerovec`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `zerovec`, use `cargo add zerovec` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `databake`
[INFO] [stdout]    --> src/uchar.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |         databake::test_bake!(
[INFO] [stdout]     |         ^^^^^^^^ use of unresolved module or unlinked crate `databake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `databake`
[INFO] [stdout]    --> src/uchar.rs:368:9
[INFO] [stdout]     |
[INFO] [stdout] 368 |         databake::test_bake!(
[INFO] [stdout]     |         ^^^^^^^^ use of unresolved module or unlinked crate `databake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/uchar.rs:299:31
[INFO] [stdout]      |
[INFO] [stdout]  299 |         serde_json::to_string(&uc).expect_err("serialize invalid char bytes");
[INFO] [stdout]      |         --------------------- ^^^ the trait `serde::ser::Serialize` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]      |         |
[INFO] [stdout]      |         required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Serialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 131 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.140/src/ser.rs:2239:17
[INFO] [stdout]      |
[INFO] [stdout] 2237 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2238 | where
[INFO] [stdout] 2239 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::ser::Serialize` is not satisfied
[INFO] [stdout]    --> src/uchar.rs:300:28
[INFO] [stdout]     |
[INFO] [stdout] 300 |         bincode::serialize(&uc).expect_err("serialize invalid char bytes");
[INFO] [stdout]     |         ------------------ ^^^ the trait `serde::ser::Serialize` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]     |         |
[INFO] [stdout]     |         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: for local types consider adding `#[derive(serde::Serialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]     = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]     = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]               &'a T
[INFO] [stdout]               &'a mut T
[INFO] [stdout]               ()
[INFO] [stdout]               (T,)
[INFO] [stdout]               (T0, T1)
[INFO] [stdout]               (T0, T1, T2)
[INFO] [stdout]               (T0, T1, T2, T3)
[INFO] [stdout]               (T0, T1, T2, T3, T4)
[INFO] [stdout]             and 131 others
[INFO] [stdout] note: required by a bound in `bincode::serialize`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bincode-1.3.3/src/lib.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn serialize<T: ?Sized>(value: &T) -> Result<Vec<u8>>
[INFO] [stdout]     |        --------- required by a bound in this function
[INFO] [stdout] 107 | where
[INFO] [stdout] 108 |     T: serde::Serialize,
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^ required by this bound in `serialize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/uchar.rs:307:46
[INFO] [stdout]      |
[INFO] [stdout]  307 |         let json_ser = serde_json::to_string(&uc).unwrap();
[INFO] [stdout]      |                        --------------------- ^^^ the trait `serde::ser::Serialize` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]      |                        |
[INFO] [stdout]      |                        required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Serialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                &'a T
[INFO] [stdout]                &'a mut T
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 131 others
[INFO] [stdout] note: required by a bound in `serde_json::to_string`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.140/src/ser.rs:2239:17
[INFO] [stdout]      |
[INFO] [stdout] 2237 | pub fn to_string<T>(value: &T) -> Result<String>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 2238 | where
[INFO] [stdout] 2239 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> src/uchar.rs:311:43
[INFO] [stdout]      |
[INFO] [stdout]  311 |         let json_de: PotentialCodePoint = serde_json::from_str(&json_ser).unwrap();
[INFO] [stdout]      |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]      |
[INFO] [stdout]      = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]      = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]      = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]                &'a Path
[INFO] [stdout]                &'a [u8]
[INFO] [stdout]                &'a str
[INFO] [stdout]                ()
[INFO] [stdout]                (T,)
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]              and 142 others
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.140/src/de.rs:2699:8
[INFO] [stdout]      |
[INFO] [stdout] 2697 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2698 | where
[INFO] [stdout] 2699 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::ser::Serialize` is not satisfied
[INFO] [stdout]    --> src/uchar.rs:320:44
[INFO] [stdout]     |
[INFO] [stdout] 320 |         let bytes_ser = bincode::serialize(&uc).unwrap();
[INFO] [stdout]     |                         ------------------ ^^^ the trait `serde::ser::Serialize` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = note: for local types consider adding `#[derive(serde::Serialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]     = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]     = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]               &'a T
[INFO] [stdout]               &'a mut T
[INFO] [stdout]               ()
[INFO] [stdout]               (T,)
[INFO] [stdout]               (T0, T1)
[INFO] [stdout]               (T0, T1, T2)
[INFO] [stdout]               (T0, T1, T2, T3)
[INFO] [stdout]               (T0, T1, T2, T3, T4)
[INFO] [stdout]             and 131 others
[INFO] [stdout] note: required by a bound in `bincode::serialize`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bincode-1.3.3/src/lib.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn serialize<T: ?Sized>(value: &T) -> Result<Vec<u8>>
[INFO] [stdout]     |        --------- required by a bound in this function
[INFO] [stdout] 107 | where
[INFO] [stdout] 108 |     T: serde::Serialize,
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^ required by this bound in `serialize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `uchar::PotentialCodePoint: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]    --> src/uchar.rs:324:44
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let bytes_de: PotentialCodePoint = bincode::deserialize(&bytes_ser).unwrap();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `uchar::PotentialCodePoint`
[INFO] [stdout]     |
[INFO] [stdout]     = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `uchar::PotentialCodePoint` type
[INFO] [stdout]     = note: for types from other crates check whether the crate offers a `serde` feature flag
[INFO] [stdout]     = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]               &'a Path
[INFO] [stdout]               &'a [u8]
[INFO] [stdout]               &'a str
[INFO] [stdout]               ()
[INFO] [stdout]               (T,)
[INFO] [stdout]               (T0, T1)
[INFO] [stdout]               (T0, T1, T2)
[INFO] [stdout]               (T0, T1, T2, T3)
[INFO] [stdout]             and 142 others
[INFO] [stdout] note: required by a bound in `bincode::deserialize`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bincode-1.3.3/src/lib.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn deserialize<'a, T>(bytes: &'a [u8]) -> Result<T>
[INFO] [stdout]     |        ----------- required by a bound in this function
[INFO] [stdout] 178 | where
[INFO] [stdout] 179 |     T: serde::de::Deserialize<'a>,
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `deserialize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `potential_utf` (lib test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "bc0f63bae51e819e4b6303a952e0911f3041f406e9038319ca67462b8894acd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0f63bae51e819e4b6303a952e0911f3041f406e9038319ca67462b8894acd4", kill_on_drop: false }`
[INFO] [stdout] bc0f63bae51e819e4b6303a952e0911f3041f406e9038319ca67462b8894acd4
