[INFO] fetching crate ron 0.9.0-alpha.1...
[INFO] checking ron-0.9.0-alpha.1 against master#f2d69d5a7c04617d122facd0a7a5bdde0af928ae for pr-138363
[INFO] extracting crate ron 0.9.0-alpha.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ron 0.9.0-alpha.1 on toolchain f2d69d5a7c04617d122facd0a7a5bdde0af928ae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ron 0.9.0-alpha.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ron 0.9.0-alpha.1
[INFO] tweaked toml for crates.io crate ron 0.9.0-alpha.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate ron 0.9.0-alpha.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" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded option_set v0.2.0
[INFO] [stderr]   Downloaded typetag-impl v0.2.19
[INFO] [stderr]   Downloaded typetag v0.2.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7b18791cb33478de249d77d49367dbca5dbe1e8da88df0360cd074a199e9cfa
[INFO] running `Command { std: "docker" "start" "-a" "b7b18791cb33478de249d77d49367dbca5dbe1e8da88df0360cd074a199e9cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7b18791cb33478de249d77d49367dbca5dbe1e8da88df0360cd074a199e9cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b18791cb33478de249d77d49367dbca5dbe1e8da88df0360cd074a199e9cfa", kill_on_drop: false }`
[INFO] [stdout] b7b18791cb33478de249d77d49367dbca5dbe1e8da88df0360cd074a199e9cfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f2d69d5a7c04617d122facd0a7a5bdde0af928ae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e862dfec2a360f956f601a5132635494bbb4bc3a10d9773f15bccc53f3ff2025
[INFO] running `Command { std: "docker" "start" "-a" "e862dfec2a360f956f601a5132635494bbb4bc3a10d9773f15bccc53f3ff2025", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling typeid v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking inventory v0.3.17
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling typetag-impl v0.2.19
[INFO] [stderr]     Checking erased-serde v0.4.5
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking option_set v0.2.0
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking bytes v1.9.0
[INFO] [stderr]     Checking ron v0.9.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking typetag v0.2.19
[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 28.81s
[INFO] running `Command { std: "docker" "inspect" "e862dfec2a360f956f601a5132635494bbb4bc3a10d9773f15bccc53f3ff2025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e862dfec2a360f956f601a5132635494bbb4bc3a10d9773f15bccc53f3ff2025", kill_on_drop: false }`
[INFO] [stdout] e862dfec2a360f956f601a5132635494bbb4bc3a10d9773f15bccc53f3ff2025