[INFO] cloning repository https://github.com/nobrayner/pil
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nobrayner/pil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobrayner%2Fpil", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobrayner%2Fpil'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 818a8e8be7664670ad480ec8f2d40f5de9676c29
[INFO] checking nobrayner/pil against master#4bd30785eb6e55f317b41b7c278f438807eeb174 for pr-102737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobrayner%2Fpil" "/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/nobrayner/pil on toolchain 4bd30785eb6e55f317b41b7c278f438807eeb174
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nobrayner/pil
[INFO] finished tweaking git repo https://github.com/nobrayner/pil
[INFO] tweaked toml for git repo https://github.com/nobrayner/pil written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nobrayner/pil already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f4818b3e5167e4b0756c569552c81e97f3908ea63b7872b3e5880508e46397d
[INFO] running `Command { std: "docker" "start" "-a" "7f4818b3e5167e4b0756c569552c81e97f3908ea63b7872b3e5880508e46397d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4818b3e5167e4b0756c569552c81e97f3908ea63b7872b3e5880508e46397d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4818b3e5167e4b0756c569552c81e97f3908ea63b7872b3e5880508e46397d", kill_on_drop: false }`
[INFO] [stdout] 7f4818b3e5167e4b0756c569552c81e97f3908ea63b7872b3e5880508e46397d
[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" "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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54ef01f184e9cfe28935f4fa1eb1c687138f8a475bb6c60d156805447ce220b4
[INFO] running `Command { std: "docker" "start" "-a" "54ef01f184e9cfe28935f4fa1eb1c687138f8a475bb6c60d156805447ce220b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking pil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `is_letter` is never used
[INFO] [stdout]  --> src/lexer.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn is_letter(character: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_whitespace` is never used
[INFO] [stdout]  --> src/lexer.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn is_whitespace(character: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_number` is never used
[INFO] [stdout]  --> src/lexer.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn is_number(character: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_open_paren` is never used
[INFO] [stdout]   --> src/lexer.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn is_open_paren(character: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_close_paren` is never used
[INFO] [stdout]   --> src/lexer.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_close_paren(character: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_paren` is never used
[INFO] [stdout]   --> src/lexer.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn is_paren(character: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_quote` is never used
[INFO] [stdout]   --> src/lexer.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn is_quote(character: char) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Paren`, `Number`, `Word` and `String` are never constructed
[INFO] [stdout]   --> src/lexer.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Token {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 26 |     Paren {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     Number {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     Word {
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     String {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]   --> src/lexer.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn lex(source: String) -> Vec<Token> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "54ef01f184e9cfe28935f4fa1eb1c687138f8a475bb6c60d156805447ce220b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54ef01f184e9cfe28935f4fa1eb1c687138f8a475bb6c60d156805447ce220b4", kill_on_drop: false }`
[INFO] [stdout] 54ef01f184e9cfe28935f4fa1eb1c687138f8a475bb6c60d156805447ce220b4