[INFO] fetching crate mavec 0.2.1...
[INFO] testing mavec-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mavec 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate mavec 0.2.1
[INFO] finished tweaking crates.io crate mavec 0.2.1
[INFO] tweaked toml for crates.io crate mavec 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mavec 0.2.1 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 mavec 0.2.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v2.0.9
[INFO] [stderr]   Downloaded thiserror-impl v2.0.9
[INFO] [stderr]   Downloaded serde_json v1.0.134
[INFO] [stderr]   Downloaded syn v2.0.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2b7274e99fd335a14fb0baf3b066cf484f26b2307f1ad0c73e45b3f1e245d742
[INFO] running `Command { std: "docker" "start" "-a" "2b7274e99fd335a14fb0baf3b066cf484f26b2307f1ad0c73e45b3f1e245d742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b7274e99fd335a14fb0baf3b066cf484f26b2307f1ad0c73e45b3f1e245d742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7274e99fd335a14fb0baf3b066cf484f26b2307f1ad0c73e45b3f1e245d742", kill_on_drop: false }`
[INFO] [stdout] 2b7274e99fd335a14fb0baf3b066cf484f26b2307f1ad0c73e45b3f1e245d742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2c1509cfc80886b4eba826019da870115e8d41bf9a657110360dc51968b5fa0d
[INFO] running `Command { std: "docker" "start" "-a" "2c1509cfc80886b4eba826019da870115e8d41bf9a657110360dc51968b5fa0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.134
[INFO] [stderr]    Compiling thiserror v2.0.9
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling thiserror-impl v2.0.9
[INFO] [stderr]    Compiling mavec v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "2c1509cfc80886b4eba826019da870115e8d41bf9a657110360dc51968b5fa0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c1509cfc80886b4eba826019da870115e8d41bf9a657110360dc51968b5fa0d", kill_on_drop: false }`
[INFO] [stdout] 2c1509cfc80886b4eba826019da870115e8d41bf9a657110360dc51968b5fa0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a30bb64b550cddb66e031fd7f59fe836be7a3f62dd7a8d833497f519809fc3f4
[INFO] running `Command { std: "docker" "start" "-a" "a30bb64b550cddb66e031fd7f59fe836be7a3f62dd7a8d833497f519809fc3f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling mavec v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "a30bb64b550cddb66e031fd7f59fe836be7a3f62dd7a8d833497f519809fc3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30bb64b550cddb66e031fd7f59fe836be7a3f62dd7a8d833497f519809fc3f4", kill_on_drop: false }`
[INFO] [stdout] a30bb64b550cddb66e031fd7f59fe836be7a3f62dd7a8d833497f519809fc3f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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", kill_on_drop: false }`
[INFO] [stdout] b603ba6351a1ef5857eacea3dc68ab46f52e2d0757879806f6965f35178ef15d
[INFO] running `Command { std: "docker" "start" "-a" "b603ba6351a1ef5857eacea3dc68ab46f52e2d0757879806f6965f35178ef15d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mavec-49abd27350d60dad)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mavec
[INFO] [stdout] running 0 tests
[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 1 test
[INFO] [stdout] test src/core.rs - core::to_vec (line 8) ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/core.rs - core::to_vec (line 8) stdout ----
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]  --> src/core.rs:12:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_json::Value
[INFO] [stdout]   |                      ^ help: add `;` here
[INFO] [stdout] 8 |
[INFO] [stdout] 9 | let value = json!({
[INFO] [stdout]   | --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0252]: the name `Value` is defined multiple times
[INFO] [stdout]  --> src/core.rs:12:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_json::{json, Value};
[INFO] [stdout]   |                        ----- previous import of the type `Value` here
[INFO] [stdout] 7 | use serde_json::Value
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ `Value` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` must be defined only once in the type namespace of this block
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0252`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/core.rs - core::to_vec (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b603ba6351a1ef5857eacea3dc68ab46f52e2d0757879806f6965f35178ef15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b603ba6351a1ef5857eacea3dc68ab46f52e2d0757879806f6965f35178ef15d", kill_on_drop: false }`
[INFO] [stdout] b603ba6351a1ef5857eacea3dc68ab46f52e2d0757879806f6965f35178ef15d