[INFO] cloning repository https://github.com/dcloudf/parsers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcloudf/parsers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcloudf%2Fparsers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcloudf%2Fparsers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 714751e6e26e06107a587ab9f1becceffa6a9ed5
[INFO] checking dcloudf/parsers against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcloudf%2Fparsers" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dcloudf/parsers on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dcloudf/parsers
[INFO] finished tweaking git repo https://github.com/dcloudf/parsers
[INFO] tweaked toml for git repo https://github.com/dcloudf/parsers written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dcloudf/parsers 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ed0a33eedcb85e4eff9f467ca4a6a875067d06169774e22cf41ac71a86539c2
[INFO] running `Command { std: "docker" "start" "-a" "9ed0a33eedcb85e4eff9f467ca4a6a875067d06169774e22cf41ac71a86539c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ed0a33eedcb85e4eff9f467ca4a6a875067d06169774e22cf41ac71a86539c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed0a33eedcb85e4eff9f467ca4a6a875067d06169774e22cf41ac71a86539c2", kill_on_drop: false }`
[INFO] [stdout] 9ed0a33eedcb85e4eff9f467ca4a6a875067d06169774e22cf41ac71a86539c2
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 706a0990550d1144d7c0673240390c5ab4fe95656fc3318193266a1d2afdaffc
[INFO] running `Command { std: "docker" "start" "-a" "706a0990550d1144d7c0673240390c5ab4fe95656fc3318193266a1d2afdaffc", kill_on_drop: false }`
[INFO] [stderr]     Checking parsers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]  --> src/pratt.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Token {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/pratt.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Lexer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `S` is never used
[INFO] [stdout]   --> src/pratt.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum S {
[INFO] [stdout]    |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `peek` are never used
[INFO] [stdout]   --> src/pratt.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 36 |     fn new(input: &str) -> Lexer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn next(&mut self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn peek(&mut self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr` is never used
[INFO] [stdout]   --> src/pratt.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn expr(input: &str) -> S {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr_br` is never used
[INFO] [stdout]   --> src/pratt.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn expr_br(lexer: &mut Lexer, min_bp: u8) -> S {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prefix_binding_power` is never used
[INFO] [stdout]    --> src/pratt.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn prefix_binding_power(op: char) -> ((), u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `postfix_binding_power` is never used
[INFO] [stdout]    --> src/pratt.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn postfix_binding_power(op: char) -> Option<(u8, ())> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `infix_binding_power` is never used
[INFO] [stdout]    --> src/pratt.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn infix_binding_power(op: char) -> (u8, u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "706a0990550d1144d7c0673240390c5ab4fe95656fc3318193266a1d2afdaffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706a0990550d1144d7c0673240390c5ab4fe95656fc3318193266a1d2afdaffc", kill_on_drop: false }`
[INFO] [stdout] 706a0990550d1144d7c0673240390c5ab4fe95656fc3318193266a1d2afdaffc