[INFO] cloning repository https://github.com/tjk113/set_builder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tjk113/set_builder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjk113%2Fset_builder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjk113%2Fset_builder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a074801ba0f0aeef38317bf7011ab7814253eb90
[INFO] checking tjk113/set_builder against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjk113%2Fset_builder" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tjk113/set_builder on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tjk113/set_builder
[INFO] finished tweaking git repo https://github.com/tjk113/set_builder
[INFO] tweaked toml for git repo https://github.com/tjk113/set_builder written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tjk113/set_builder 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking tjk113/set_builder against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjk113%2Fset_builder" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tjk113/set_builder on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tjk113/set_builder
[INFO] finished tweaking git repo https://github.com/tjk113/set_builder
[INFO] tweaked toml for git repo https://github.com/tjk113/set_builder written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tjk113/set_builder 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1cb22115f916b83cdb17df0291818b0906c3c61b048b7a4b6be8484691439b2
[INFO] running `Command { std: "docker" "start" "-a" "f1cb22115f916b83cdb17df0291818b0906c3c61b048b7a4b6be8484691439b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1cb22115f916b83cdb17df0291818b0906c3c61b048b7a4b6be8484691439b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1cb22115f916b83cdb17df0291818b0906c3c61b048b7a4b6be8484691439b2", kill_on_drop: false }`
[INFO] [stdout] f1cb22115f916b83cdb17df0291818b0906c3c61b048b7a4b6be8484691439b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84208ed12f5b6e11757e37cb6b99450eed366a88d76525981dcba5b162898683
[INFO] running `Command { std: "docker" "start" "-a" "84208ed12f5b6e11757e37cb6b99450eed366a88d76525981dcba5b162898683", kill_on_drop: false }`
[INFO] [stderr]     Checking set_builder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `output` and `ast` are never read
[INFO] [stdout]   --> src/codegenerator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct X86_64Generator {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 14 |     output: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     ast: SetBuilder,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_ahead` is never used
[INFO] [stdout]   --> src/parser.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Parser {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn peek_ahead(&self, offset: usize) -> Option<&Token> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `output` and `ast` are never read
[INFO] [stdout]   --> src/codegenerator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct X86_64Generator {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 14 |     output: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     ast: SetBuilder,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_ahead` is never used
[INFO] [stdout]   --> src/parser.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Parser {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn peek_ahead(&self, offset: usize) -> Option<&Token> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "84208ed12f5b6e11757e37cb6b99450eed366a88d76525981dcba5b162898683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84208ed12f5b6e11757e37cb6b99450eed366a88d76525981dcba5b162898683", kill_on_drop: false }`
[INFO] [stdout] 84208ed12f5b6e11757e37cb6b99450eed366a88d76525981dcba5b162898683