[INFO] fetching crate ron 0.10.1...
[INFO] checking ron-0.10.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ron 0.10.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate ron 0.10.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ron 0.10.1
[INFO] tweaked toml for crates.io crate ron 0.10.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ron 0.10.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ron 0.10.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded option_set v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8906b28f0ec018ba4a082d5b6f3029704ee28275479a0d708033a6f47344289c
[INFO] running `Command { std: "docker" "start" "-a" "8906b28f0ec018ba4a082d5b6f3029704ee28275479a0d708033a6f47344289c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8906b28f0ec018ba4a082d5b6f3029704ee28275479a0d708033a6f47344289c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8906b28f0ec018ba4a082d5b6f3029704ee28275479a0d708033a6f47344289c", kill_on_drop: false }`
[INFO] [stdout] 8906b28f0ec018ba4a082d5b6f3029704ee28275479a0d708033a6f47344289c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4e4aef4216ca161543bd90e662430e493e5b9e08b45613015638a67b51c679c
[INFO] running `Command { std: "docker" "start" "-a" "e4e4aef4216ca161543bd90e662430e493e5b9e08b45613015638a67b51c679c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking inventory v0.3.20
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling typetag-impl v0.2.20
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking erased-serde v0.4.6
[INFO] [stderr]     Checking option_set v0.3.0
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking ron v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking typetag v0.2.20
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/410_trailing_comma.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Newtype(i32);
[INFO] [stdout]   |        ------- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/410_trailing_comma.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Tuple(i32, i32);
[INFO] [stdout]    |        ----- ^^^  ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.99s
[INFO] running `Command { std: "docker" "inspect" "e4e4aef4216ca161543bd90e662430e493e5b9e08b45613015638a67b51c679c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e4aef4216ca161543bd90e662430e493e5b9e08b45613015638a67b51c679c", kill_on_drop: false }`
[INFO] [stdout] e4e4aef4216ca161543bd90e662430e493e5b9e08b45613015638a67b51c679c