[INFO] cloning repository https://github.com/armbur19-collab/JSONMerger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/armbur19-collab/JSONMerger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmbur19-collab%2FJSONMerger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmbur19-collab%2FJSONMerger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af1f957cda44cf1215ac76a5827ac4d71a601063
[INFO] fixing armbur19-collab/JSONMerger/af1f957cda44cf1215ac76a5827ac4d71a601063 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmbur19-collab%2FJSONMerger" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/armbur19-collab/JSONMerger
[INFO] finished tweaking git repo https://github.com/armbur19-collab/JSONMerger
[INFO] tweaked toml for git repo https://github.com/armbur19-collab/JSONMerger written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/armbur19-collab/JSONMerger on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/armbur19-collab/JSONMerger 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrow-schema v53.4.1
[INFO] [stderr]   Downloaded arrow-data v53.4.1
[INFO] [stderr]   Downloaded const-random v0.1.18
[INFO] [stderr]   Downloaded const-random-macro v0.1.16
[INFO] [stderr]   Downloaded arrow-buffer v53.4.1
[INFO] [stderr]   Downloaded lexical-core v1.0.6
[INFO] [stderr]   Downloaded flatbuffers v24.12.23
[INFO] [stderr]   Downloaded csv-core v0.1.13
[INFO] [stderr]   Downloaded lexical-parse-integer v1.0.6
[INFO] [stderr]   Downloaded arrow-string v53.4.1
[INFO] [stderr]   Downloaded arrow-row v53.4.1
[INFO] [stderr]   Downloaded arrow-ord v53.4.1
[INFO] [stderr]   Downloaded arrow-csv v53.4.1
[INFO] [stderr]   Downloaded arrow-arith v53.4.1
[INFO] [stderr]   Downloaded arrow-json v53.4.1
[INFO] [stderr]   Downloaded lexical-write-integer v1.0.6
[INFO] [stderr]   Downloaded arrow-select v53.4.1
[INFO] [stderr]   Downloaded cc v1.2.46
[INFO] [stderr]   Downloaded arrow v53.4.1
[INFO] [stderr]   Downloaded lexical-util v1.0.7
[INFO] [stderr]   Downloaded lexical-write-float v1.0.6
[INFO] [stderr]   Downloaded arrow-cast v53.4.1
[INFO] [stderr]   Downloaded arrow-ipc v53.4.1
[INFO] [stderr]   Downloaded lexical-parse-float v1.0.6
[INFO] [stderr]   Downloaded arrow-array v53.4.1
[INFO] [stderr]   Downloaded chrono v0.4.39
[INFO] [stderr]   Downloaded csv v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5
[INFO] running `Command { std: "docker" "start" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking arrow-schema v53.4.1
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking lexical-util v1.0.7
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking lexical-parse-integer v1.0.6
[INFO] [stderr]     Checking lexical-write-integer v1.0.6
[INFO] [stderr]     Checking lexical-parse-float v1.0.6
[INFO] [stderr]     Checking lexical-write-float v1.0.6
[INFO] [stderr]    Compiling flatbuffers v24.12.23
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking indexmap v2.12.0
[INFO] [stderr]     Checking lexical-core v1.0.6
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking chrono v0.4.39
[INFO] [stderr]     Checking atoi v2.0.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking zerocopy v0.8.27
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking arrow-buffer v53.4.1
[INFO] [stderr]     Checking arrow-data v53.4.1
[INFO] [stderr]     Checking arrow-array v53.4.1
[INFO] [stderr]     Checking arrow-select v53.4.1
[INFO] [stderr]     Checking arrow-arith v53.4.1
[INFO] [stderr]     Checking arrow-row v53.4.1
[INFO] [stderr]     Checking arrow-cast v53.4.1
[INFO] [stderr]     Checking arrow-ord v53.4.1
[INFO] [stderr]     Checking arrow-string v53.4.1
[INFO] [stderr]     Checking arrow-ipc v53.4.1
[INFO] [stderr]     Checking arrow-json v53.4.1
[INFO] [stderr]     Checking arrow-csv v53.4.1
[INFO] [stderr]     Checking arrow v53.4.1
[INFO] [stderr]     Checking json_merger v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/arrow.rs:828:13
[INFO] [stdout]     |
[INFO] [stdout] 828 |         let fields = Fields::from(vec![
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/arrow.rs:870:13
[INFO] [stdout]     |
[INFO] [stdout] 870 |         let fields = Fields::from(vec![
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:512:19
[INFO] [stdout]     |
[INFO] [stdout] 512 |     ArrayStrategy(ArraySpec),
[INFO] [stdout]     |     ------------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FieldAction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 512 -     ArrayStrategy(ArraySpec),
[INFO] [stdout] 512 +     ArrayStrategy(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:512:19
[INFO] [stdout]     |
[INFO] [stdout] 512 |     ArrayStrategy(ArraySpec),
[INFO] [stdout]     |     ------------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FieldAction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 512 -     ArrayStrategy(ArraySpec),
[INFO] [stdout] 512 +     ArrayStrategy(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.61s
[INFO] [stderr] crater-edition-check: all finished
[INFO] running `Command { std: "docker" "inspect" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5", kill_on_drop: false }`
[INFO] [stdout] fab4b0a6b6150a01d68fe7b162e61090b00d74e02c01ea1865bb56aaac5c4de5
