[INFO] fetching crate posh-tabcomplete 0.5.0...
[INFO] checking posh-tabcomplete-0.5.0 against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] extracting crate posh-tabcomplete 0.5.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate posh-tabcomplete 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate posh-tabcomplete 0.5.0
[INFO] tweaked toml for crates.io crate posh-tabcomplete 0.5.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate posh-tabcomplete 0.5.0 on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate posh-tabcomplete 0.5.0 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ee0d6f5aa12b7bbe4838afbbf31f073abb82c54e6d1fafd126a98252d0b042e
[INFO] running `Command { std: "docker" "start" "-a" "8ee0d6f5aa12b7bbe4838afbbf31f073abb82c54e6d1fafd126a98252d0b042e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ee0d6f5aa12b7bbe4838afbbf31f073abb82c54e6d1fafd126a98252d0b042e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ee0d6f5aa12b7bbe4838afbbf31f073abb82c54e6d1fafd126a98252d0b042e", kill_on_drop: false }`
[INFO] [stdout] 8ee0d6f5aa12b7bbe4838afbbf31f073abb82c54e6d1fafd126a98252d0b042e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10b50fb84c8d09bb9fdbc56b8a9fb228a4ff86c47bfbf8447fd1d0ca4b739ab4
[INFO] running `Command { std: "docker" "start" "-a" "10b50fb84c8d09bb9fdbc56b8a9fb228a4ff86c47bfbf8447fd1d0ca4b739ab4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
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[INFO] [stderr]    Compiling oem_cp v2.0.0
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[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking tabled v0.16.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking brotli-decompressor v4.0.1
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[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking nu-system v0.101.0
[INFO] [stderr]     Checking which v7.0.1
[INFO] [stderr]     Checking tempfile v3.15.0
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[INFO] [stderr]     Checking nu-utils v0.101.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling winnow v0.6.24
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nu-utils-0.101.0/src/flatten_json.rs:206:37
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     types differ in mutability
[INFO] [stdout]     |                                     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected array `[&mut Value; _]`
[INFO] [stdout]                found array `[&Value; 2]`
[INFO] [stdout] help: the return type of this call is `[&Value; 2]` due to the type of the argument passed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nu-utils-0.101.0/src/flatten_json.rs:206:37
[INFO] [stdout]     |
[INFO] [stdout] 206 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]     = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cpufeatures v0.2.16
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking dialoguer v0.11.0
[INFO] [stderr] error: could not compile `nu-utils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "10b50fb84c8d09bb9fdbc56b8a9fb228a4ff86c47bfbf8447fd1d0ca4b739ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b50fb84c8d09bb9fdbc56b8a9fb228a4ff86c47bfbf8447fd1d0ca4b739ab4", kill_on_drop: false }`
[INFO] [stdout] 10b50fb84c8d09bb9fdbc56b8a9fb228a4ff86c47bfbf8447fd1d0ca4b739ab4