[INFO] cloning repository https://github.com/DawenYang/toydb-mimic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DawenYang/toydb-mimic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDawenYang%2Ftoydb-mimic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDawenYang%2Ftoydb-mimic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63c41422bf3a17d404f61a1a65d6709c982b251c
[INFO] checking DawenYang/toydb-mimic against master#da2544bfbe84df7b24d83c029c74299ebf6112c6 for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDawenYang%2Ftoydb-mimic" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DawenYang/toydb-mimic
[INFO] finished tweaking git repo https://github.com/DawenYang/toydb-mimic
[INFO] tweaked toml for git repo https://github.com/DawenYang/toydb-mimic written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DawenYang/toydb-mimic on toolchain da2544bfbe84df7b24d83c029c74299ebf6112c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da2544bfbe84df7b24d83c029c74299ebf6112c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DawenYang/toydb-mimic 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" "+da2544bfbe84df7b24d83c029c74299ebf6112c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode_derive v2.0.1
[INFO] [stderr]   Downloaded virtue v0.0.18
[INFO] [stderr]   Downloaded rust-ini v0.21.3
[INFO] [stderr]   Downloaded config v0.15.19
[INFO] [stderr]   Downloaded ron v0.12.0
[INFO] [stderr]   Downloaded rustyline v17.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+da2544bfbe84df7b24d83c029c74299ebf6112c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09a53feb6cb5c8b5a4c242f03318e110bc26d9b1aa694c7d50987778998aefe7
[INFO] running `Command { std: "docker" "start" "-a" "09a53feb6cb5c8b5a4c242f03318e110bc26d9b1aa694c7d50987778998aefe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09a53feb6cb5c8b5a4c242f03318e110bc26d9b1aa694c7d50987778998aefe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09a53feb6cb5c8b5a4c242f03318e110bc26d9b1aa694c7d50987778998aefe7", kill_on_drop: false }`
[INFO] [stdout] 09a53feb6cb5c8b5a4c242f03318e110bc26d9b1aa694c7d50987778998aefe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+da2544bfbe84df7b24d83c029c74299ebf6112c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48f1f5b4ad7e2fdd2f8e67b1c09aa9f177dd4269fa2acda60723a5a9963bb67f
[INFO] running `Command { std: "docker" "start" "-a" "48f1f5b4ad7e2fdd2f8e67b1c09aa9f177dd4269fa2acda60723a5a9963bb67f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling erased-serde v0.4.9
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking ucd-trie v0.1.7
[INFO] [stderr]     Checking pest v2.8.3
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking toml_parser v1.0.4
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking serde_spanned v1.0.3
[INFO] [stderr]     Checking toml_datetime v0.7.3
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking yaml-rust2 v0.10.4
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]     Checking serde-untagged v0.1.9
[INFO] [stderr]     Checking toml v0.9.8
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking unty v0.0.4
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking fs4 v0.13.1
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking ordered-multimap v0.7.3
[INFO] [stderr]     Checking rust-ini v0.21.3
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]     Checking rustyline v17.0.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking ron v0.12.0
[INFO] [stderr]     Checking bincode v2.0.1
[INFO] [stderr]     Checking config v0.15.19
[INFO] [stderr]     Checking toydb-mimic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/encoding/mod.rs:19:45
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn decode(bytes: &[u8]) -> Result<Self> {}
[INFO] [stdout]    |                                             ^^ expected `Result<Self, Error>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::result::Result<Self, error::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/encoding/mod.rs:19:45
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn decode(bytes: &[u8]) -> Result<Self> {}
[INFO] [stdout]    |                                             ^^ expected `Result<Self, Error>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::result::Result<Self, error::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toydb-mimic` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toydb-mimic` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "48f1f5b4ad7e2fdd2f8e67b1c09aa9f177dd4269fa2acda60723a5a9963bb67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48f1f5b4ad7e2fdd2f8e67b1c09aa9f177dd4269fa2acda60723a5a9963bb67f", kill_on_drop: false }`
[INFO] [stdout] 48f1f5b4ad7e2fdd2f8e67b1c09aa9f177dd4269fa2acda60723a5a9963bb67f
