[INFO] cloning repository https://github.com/sunfishcode/codeexpr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sunfishcode/codeexpr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunfishcode%2Fcodeexpr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunfishcode%2Fcodeexpr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c569cd95ed0c00abb2e28d0985e464ba52a1e3b0
[INFO] checking sunfishcode/codeexpr against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunfishcode%2Fcodeexpr" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sunfishcode/codeexpr
[INFO] finished tweaking git repo https://github.com/sunfishcode/codeexpr
[INFO] tweaked toml for git repo https://github.com/sunfishcode/codeexpr written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sunfishcode/codeexpr on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sunfishcode/codeexpr 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "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 sunfishcode/codeexpr against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunfishcode%2Fcodeexpr" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sunfishcode/codeexpr
[INFO] finished tweaking git repo https://github.com/sunfishcode/codeexpr
[INFO] tweaked toml for git repo https://github.com/sunfishcode/codeexpr written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sunfishcode/codeexpr on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sunfishcode/codeexpr 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b1848d8cd6222b5fc3ed531317e2b9263abfdcb1189c70856e7e686aa6218af
[INFO] running `Command { std: "docker" "start" "-a" "8b1848d8cd6222b5fc3ed531317e2b9263abfdcb1189c70856e7e686aa6218af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b1848d8cd6222b5fc3ed531317e2b9263abfdcb1189c70856e7e686aa6218af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1848d8cd6222b5fc3ed531317e2b9263abfdcb1189c70856e7e686aa6218af", kill_on_drop: false }`
[INFO] [stdout] 8b1848d8cd6222b5fc3ed531317e2b9263abfdcb1189c70856e7e686aa6218af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17d6c823330d00072e95217833034618564fd89bd2a760a0d8f928abb5792508
[INFO] running `Command { std: "docker" "start" "-a" "17d6c823330d00072e95217833034618564fd89bd2a760a0d8f928abb5792508", kill_on_drop: false }`
[INFO] [stderr]     Checking codeexpr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `I64` is never constructed
[INFO] [stdout]   --> src/codeexpr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Type {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 12 |     I32,
[INFO] [stdout] 13 |     I64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `I64` is never constructed
[INFO] [stdout]   --> src/codeexpr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Type {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 12 |     I32,
[INFO] [stdout] 13 |     I64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TargetIsa` is never used
[INFO] [stdout]   --> src/codeexpr.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait TargetIsa {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `IAddImm` and `Call` are never constructed
[INFO] [stdout]   --> src/codeexpr.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum CodeExpr {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 58 |     IAddImm {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     Call {
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CodeExpr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `symbol_name` and `result_type` are never used
[INFO] [stdout]    --> src/codeexpr.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl CodeExpr {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 114 |     /// Assume that `self` is an `CodeExpr::Symbol` and return its name.
[INFO] [stdout] 115 |     pub fn symbol_name(&self) -> &ExternalName {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn result_type(&self, isa: &dyn TargetIsa) -> Type {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TargetIsa` is never used
[INFO] [stdout]   --> src/codeexpr.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait TargetIsa {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `IAddImm` and `Call` are never constructed
[INFO] [stdout]   --> src/codeexpr.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum CodeExpr {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 58 |     IAddImm {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     Call {
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CodeExpr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `symbol_name` and `result_type` are never used
[INFO] [stdout]    --> src/codeexpr.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl CodeExpr {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] 114 |     /// Assume that `self` is an `CodeExpr::Symbol` and return its name.
[INFO] [stdout] 115 |     pub fn symbol_name(&self) -> &ExternalName {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn result_type(&self, isa: &dyn TargetIsa) -> Type {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "17d6c823330d00072e95217833034618564fd89bd2a760a0d8f928abb5792508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d6c823330d00072e95217833034618564fd89bd2a760a0d8f928abb5792508", kill_on_drop: false }`
[INFO] [stdout] 17d6c823330d00072e95217833034618564fd89bd2a760a0d8f928abb5792508
