[INFO] fetching crate matdb 0.1.0...
[INFO] checking matdb-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate matdb 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate matdb 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate matdb 0.1.0
[INFO] tweaked toml for crates.io crate matdb 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate matdb 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate matdb 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolic_expressions v5.0.3
[INFO] [stderr]   Downloaded symbol_table v0.2.0
[INFO] [stderr]   Downloaded egg v0.9.5
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebd74ee6f3a0cb1e55ca3bb81769576bb342f3cd2e8929e90d5a85082c588440
[INFO] running `Command { std: "docker" "start" "-a" "ebd74ee6f3a0cb1e55ca3bb81769576bb342f3cd2e8929e90d5a85082c588440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebd74ee6f3a0cb1e55ca3bb81769576bb342f3cd2e8929e90d5a85082c588440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd74ee6f3a0cb1e55ca3bb81769576bb342f3cd2e8929e90d5a85082c588440", kill_on_drop: false }`
[INFO] [stdout] ebd74ee6f3a0cb1e55ca3bb81769576bb342f3cd2e8929e90d5a85082c588440
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c39caa29b3832c498f840a05a602d1f741ad71aa7fb2bfd9043f30d5c0deb1d
[INFO] running `Command { std: "docker" "start" "-a" "4c39caa29b3832c498f840a05a602d1f741ad71aa7fb2bfd9043f30d5c0deb1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.160
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking symbolic_expressions v5.0.3
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking regex-lite v0.1.6
[INFO] [stderr]     Checking condtype v1.3.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking getrandom v0.3.1
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking terminal_size v0.4.1
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking clap_builder v4.5.32
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking symbol_table v0.2.0
[INFO] [stderr]     Checking rustyline v14.0.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling divan-macros v0.1.17
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking thiserror v1.0.65
[INFO] [stderr]     Checking egg v0.9.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking clap v4.5.32
[INFO] [stderr]     Checking divan v0.1.17
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking matdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]   --> src/parser/lexer.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Spanned<T> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub start: Position,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub end: Position,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Spanned` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/lexer.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 113 |     UnexpectedCharacter(char),
[INFO] [stdout]     |     ------------------- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LexerError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 -     UnexpectedCharacter(char),
[INFO] [stdout] 113 +     UnexpectedCharacter(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `end` are never read
[INFO] [stdout]   --> src/parser/lexer.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Spanned<T> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub start: Position,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub end: Position,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Spanned` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/lexer.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 113 |     UnexpectedCharacter(char),
[INFO] [stdout]     |     ------------------- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LexerError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 -     UnexpectedCharacter(char),
[INFO] [stdout] 113 +     UnexpectedCharacter(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.27s
[INFO] running `Command { std: "docker" "inspect" "4c39caa29b3832c498f840a05a602d1f741ad71aa7fb2bfd9043f30d5c0deb1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c39caa29b3832c498f840a05a602d1f741ad71aa7fb2bfd9043f30d5c0deb1d", kill_on_drop: false }`
[INFO] [stdout] 4c39caa29b3832c498f840a05a602d1f741ad71aa7fb2bfd9043f30d5c0deb1d