[INFO] fetching crate mavec 0.2.1...
[INFO] testing mavec-0.2.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate mavec 0.2.1 into /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mavec 0.2.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43b3c17771553b2f9dc7a31fd3b4eb313fd92509698657d1ed6422e46b350ac4
[INFO] running `Command { std: "docker" "start" "-a" "43b3c17771553b2f9dc7a31fd3b4eb313fd92509698657d1ed6422e46b350ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43b3c17771553b2f9dc7a31fd3b4eb313fd92509698657d1ed6422e46b350ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b3c17771553b2f9dc7a31fd3b4eb313fd92509698657d1ed6422e46b350ac4", kill_on_drop: false }`
[INFO] [stdout] 43b3c17771553b2f9dc7a31fd3b4eb313fd92509698657d1ed6422e46b350ac4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b3eea18c96f04683e217904e884e9a7df2b8f9af3ad8791606b916235f09e99
[INFO] running `Command { std: "docker" "start" "-a" "3b3eea18c96f04683e217904e884e9a7df2b8f9af3ad8791606b916235f09e99", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling syn v2.0.95
[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 indexmap v2.7.0
[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 6.93s
[INFO] running `Command { std: "docker" "inspect" "3b3eea18c96f04683e217904e884e9a7df2b8f9af3ad8791606b916235f09e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3eea18c96f04683e217904e884e9a7df2b8f9af3ad8791606b916235f09e99", kill_on_drop: false }`
[INFO] [stdout] 3b3eea18c96f04683e217904e884e9a7df2b8f9af3ad8791606b916235f09e99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b97ba7dacd4b970eb7ba4531e4423d65ab28535fd213435bd0ee26a8da63d2a0
[INFO] running `Command { std: "docker" "start" "-a" "b97ba7dacd4b970eb7ba4531e4423d65ab28535fd213435bd0ee26a8da63d2a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mavec v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "b97ba7dacd4b970eb7ba4531e4423d65ab28535fd213435bd0ee26a8da63d2a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97ba7dacd4b970eb7ba4531e4423d65ab28535fd213435bd0ee26a8da63d2a0", kill_on_drop: false }`
[INFO] [stdout] b97ba7dacd4b970eb7ba4531e4423d65ab28535fd213435bd0ee26a8da63d2a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a674fdcceb275c950b19ba100658c1f43c37d09b3fe110c747768204c65fe9bc
[INFO] running `Command { std: "docker" "start" "-a" "a674fdcceb275c950b19ba100658c1f43c37d09b3fe110c747768204c65fe9bc", 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-96b4bfd3f04ee926)
[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] [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 0.18s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a674fdcceb275c950b19ba100658c1f43c37d09b3fe110c747768204c65fe9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a674fdcceb275c950b19ba100658c1f43c37d09b3fe110c747768204c65fe9bc", kill_on_drop: false }`
[INFO] [stdout] a674fdcceb275c950b19ba100658c1f43c37d09b3fe110c747768204c65fe9bc