[INFO] updating cached repository https://github.com/nankeen/tiongkok-lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a7b30a636c67ec64be16eff638f16ed8c5d778d5
[INFO] checking nankeen/tiongkok-lang against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnankeen%2Ftiongkok-lang" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nankeen/tiongkok-lang on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nankeen/tiongkok-lang
[INFO] finished tweaking git repo https://github.com/nankeen/tiongkok-lang
[INFO] tweaked toml for git repo https://github.com/nankeen/tiongkok-lang written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nankeen/tiongkok-lang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e3009363ef11ae89f6a47af6c5d8fd5b0cf45542cfd0a31cd45ae92940b63ff0
[INFO] running `"docker" "start" "-a" "e3009363ef11ae89f6a47af6c5d8fd5b0cf45542cfd0a31cd45ae92940b63ff0"`
[INFO] [stderr]     Checking tiongkok-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/calculator/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `postfix_notation`
[INFO] [stderr]   --> src/calculator/interpreter.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn postfix_notation(node: &ASTNode) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lisp_notation`
[INFO] [stderr]   --> src/calculator/interpreter.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn lisp_notation(node: &ASTNode) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LexerState`
[INFO] [stderr]  --> src/calculator/lexer.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | enum LexerState {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/calculator/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `postfix_notation`
[INFO] [stderr]   --> src/calculator/interpreter.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn postfix_notation(node: &ASTNode) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lisp_notation`
[INFO] [stderr]   --> src/calculator/interpreter.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn lisp_notation(node: &ASTNode) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LexerState`
[INFO] [stderr]  --> src/calculator/lexer.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | enum LexerState {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "e3009363ef11ae89f6a47af6c5d8fd5b0cf45542cfd0a31cd45ae92940b63ff0"`
[INFO] running `"docker" "rm" "-f" "e3009363ef11ae89f6a47af6c5d8fd5b0cf45542cfd0a31cd45ae92940b63ff0"`
[INFO] [stdout] e3009363ef11ae89f6a47af6c5d8fd5b0cf45542cfd0a31cd45ae92940b63ff0