[INFO] crate syntax-rust 0.1.0 is already in cache
[INFO] checking syntax-rust-0.1.0 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate syntax-rust 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate syntax-rust 0.1.0 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntax-rust 0.1.0
[INFO] finished tweaking crates.io crate syntax-rust 0.1.0
[INFO] tweaked toml for crates.io crate syntax-rust 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f479ebcdf4e615e2c8b86a6bbbb372286282809db3e5e6eb8ecfd5064fd6dea5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f479ebcdf4e615e2c8b86a6bbbb372286282809db3e5e6eb8ecfd5064fd6dea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f479ebcdf4e615e2c8b86a6bbbb372286282809db3e5e6eb8ecfd5064fd6dea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f479ebcdf4e615e2c8b86a6bbbb372286282809db3e5e6eb8ecfd5064fd6dea5", kill_on_drop: false }`
[INFO] [stdout] f479ebcdf4e615e2c8b86a6bbbb372286282809db3e5e6eb8ecfd5064fd6dea5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c432fa92f6e7154815bac2bac04f0c738a87bc3dda54a5cd6d0ac7271b10038e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c432fa92f6e7154815bac2bac04f0c738a87bc3dda54a5cd6d0ac7271b10038e", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking dialect v0.1.1
[INFO] [stderr]     Checking syntax-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `shouting_snake_case`
[INFO] [stdout]   --> src/utils.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub(crate) fn shouting_snake_case(s: &str) -> nom::IResult<&str, &str> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shouting_snake_case`
[INFO] [stdout]   --> src/utils.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub(crate) fn shouting_snake_case(s: &str) -> nom::IResult<&str, &str> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.24s
[INFO] running `Command { std: "docker" "inspect" "c432fa92f6e7154815bac2bac04f0c738a87bc3dda54a5cd6d0ac7271b10038e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c432fa92f6e7154815bac2bac04f0c738a87bc3dda54a5cd6d0ac7271b10038e", kill_on_drop: false }`
[INFO] [stdout] c432fa92f6e7154815bac2bac04f0c738a87bc3dda54a5cd6d0ac7271b10038e