[INFO] cloning repository https://github.com/iptq/rslex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iptq/rslex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiptq%2Frslex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiptq%2Frslex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e1094c170b0db137ac01b9b505e16d27d3f7c4f
[INFO] checking iptq/rslex against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiptq%2Frslex" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iptq/rslex on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iptq/rslex
[INFO] finished tweaking git repo https://github.com/iptq/rslex
[INFO] tweaked toml for git repo https://github.com/iptq/rslex written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/iptq/rslex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ca7d834119bc9fd6a66135ec6faea853434aaf27d3fa2733713fed91fc356cfb
[INFO] running `Command { std: "docker" "start" "-a" "ca7d834119bc9fd6a66135ec6faea853434aaf27d3fa2733713fed91fc356cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca7d834119bc9fd6a66135ec6faea853434aaf27d3fa2733713fed91fc356cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7d834119bc9fd6a66135ec6faea853434aaf27d3fa2733713fed91fc356cfb", kill_on_drop: false }`
[INFO] [stdout] ca7d834119bc9fd6a66135ec6faea853434aaf27d3fa2733713fed91fc356cfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 836c6846efd398baac92175f6cd6ed1597b9f234d24a88f7219a297eea2ca5cd
[INFO] running `Command { std: "docker" "start" "-a" "836c6846efd398baac92175f6cd6ed1597b9f234d24a88f7219a297eea2ca5cd", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling rslex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stdout] warning: `extern` block uses type `rslex::rule_t`, which is not FFI-safe
[INFO] [stdout]   --> bin/rslex.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn rslex_parse_main(src: *const c_char) -> lexer_t;
[INFO] [stdout]    |                                                ^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `rslex::rule_t`, which is not FFI-safe
[INFO] [stdout]   --> bin/rslex.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn rslex_parse_main(src: *const c_char) -> lexer_t;
[INFO] [stdout]    |                                                ^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.82s
[INFO] running `Command { std: "docker" "inspect" "836c6846efd398baac92175f6cd6ed1597b9f234d24a88f7219a297eea2ca5cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836c6846efd398baac92175f6cd6ed1597b9f234d24a88f7219a297eea2ca5cd", kill_on_drop: false }`
[INFO] [stdout] 836c6846efd398baac92175f6cd6ed1597b9f234d24a88f7219a297eea2ca5cd