[INFO] updating cached repository https://github.com/nankeen/tiongkok-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 882d5ff053e86757336d3d1fa7c79a627c8c2371
[INFO] checking nankeen/tiongkok-lang against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnankeen%2Ftiongkok-lang" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nankeen/tiongkok-lang on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nankeen/tiongkok-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ddb7d4a1040b2332b3c325ca8c2c07d16cdd5f7e9ff921b26aade520889b561
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1ddb7d4a1040b2332b3c325ca8c2c07d16cdd5f7e9ff921b26aade520889b561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ddb7d4a1040b2332b3c325ca8c2c07d16cdd5f7e9ff921b26aade520889b561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ddb7d4a1040b2332b3c325ca8c2c07d16cdd5f7e9ff921b26aade520889b561", kill_on_drop: false }`
[INFO] [stdout] 1ddb7d4a1040b2332b3c325ca8c2c07d16cdd5f7e9ff921b26aade520889b561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a89f57d4662dacd161c4b75aee4358d3e75fa286a81fe72bd79b7069d543492
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5a89f57d4662dacd161c4b75aee4358d3e75fa286a81fe72bd79b7069d543492", kill_on_drop: false }`
[INFO] [stderr]     Checking tiongkok-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec::Vec`
[INFO] [stdout]  --> src/calculator/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec::Vec`
[INFO] [stdout]  --> src/calculator/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `postfix_notation`
[INFO] [stdout]   --> src/calculator/interpreter.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn postfix_notation(node: &ASTNode) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lisp_notation`
[INFO] [stdout]   --> src/calculator/interpreter.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn lisp_notation(node: &ASTNode) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LexerState`
[INFO] [stdout]  --> src/calculator/lexer.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum LexerState {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `postfix_notation`
[INFO] [stdout]   --> src/calculator/interpreter.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn postfix_notation(node: &ASTNode) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lisp_notation`
[INFO] [stdout]   --> src/calculator/interpreter.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn lisp_notation(node: &ASTNode) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LexerState`
[INFO] [stdout]  --> src/calculator/lexer.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum LexerState {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "5a89f57d4662dacd161c4b75aee4358d3e75fa286a81fe72bd79b7069d543492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a89f57d4662dacd161c4b75aee4358d3e75fa286a81fe72bd79b7069d543492", kill_on_drop: false }`
[INFO] [stdout] 5a89f57d4662dacd161c4b75aee4358d3e75fa286a81fe72bd79b7069d543492