[INFO] cloning repository https://github.com/ashyanSpada/pratt_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashyanSpada/pratt_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FashyanSpada%2Fpratt_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FashyanSpada%2Fpratt_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4811ee3ea1f92acf18b74e68f1a03310a0da1af0
[INFO] checking ashyanSpada/pratt_parser against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FashyanSpada%2Fpratt_parser" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ashyanSpada/pratt_parser
[INFO] finished tweaking git repo https://github.com/ashyanSpada/pratt_parser
[INFO] tweaked toml for git repo https://github.com/ashyanSpada/pratt_parser written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ashyanSpada/pratt_parser on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ashyanSpada/pratt_parser 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88045a0f83003ce60a0ada789e8c357a954c50c8e549e989a14e76b0df56ac68
[INFO] running `Command { std: "docker" "start" "-a" "88045a0f83003ce60a0ada789e8c357a954c50c8e549e989a14e76b0df56ac68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88045a0f83003ce60a0ada789e8c357a954c50c8e549e989a14e76b0df56ac68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88045a0f83003ce60a0ada789e8c357a954c50c8e549e989a14e76b0df56ac68", kill_on_drop: false }`
[INFO] [stdout] 88045a0f83003ce60a0ada789e8c357a954c50c8e549e989a14e76b0df56ac68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f289882bb5e8c24950e5e85fe54a97ce38324c3168ae277d37e12537c267dd
[INFO] running `Command { std: "docker" "start" "-a" "93f289882bb5e8c24950e5e85fe54a97ce38324c3168ae277d37e12537c267dd", kill_on_drop: false }`
[INFO] [stderr]     Checking pratt_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/lexer.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         op => None,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]  --> src/lexer.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Token {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Lexer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `peek` are never used
[INFO] [stdout]   --> src/lexer.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 15 |     fn new(input: &str) -> Lexer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn next(&mut self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn peek(&mut self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `S` is never used
[INFO] [stdout]   --> src/lexer.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum S {
[INFO] [stdout]    |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr` is never used
[INFO] [stdout]   --> src/lexer.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn expr(input: &str) -> S {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr_bp` is never used
[INFO] [stdout]   --> src/lexer.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn expr_bp(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/lexer.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn prefix_binding_power(op: char) -> ((), u8) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `infix_binding_power` is never used
[INFO] [stdout]    --> src/lexer.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn infix_binding_power(op: char) -> Option<(u8, u8)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `postfix_binding_power` is never used
[INFO] [stdout]    --> src/lexer.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn postfix_binding_power(op: char) -> Option<(u8, ())> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/lexer.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         op => None,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "93f289882bb5e8c24950e5e85fe54a97ce38324c3168ae277d37e12537c267dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f289882bb5e8c24950e5e85fe54a97ce38324c3168ae277d37e12537c267dd", kill_on_drop: false }`
[INFO] [stdout] 93f289882bb5e8c24950e5e85fe54a97ce38324c3168ae277d37e12537c267dd