[INFO] cloning repository https://github.com/claytonwramsey/jam-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/claytonwramsey/jam-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclaytonwramsey%2Fjam-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclaytonwramsey%2Fjam-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a2cbe9df98b42e62ad6ea94b71faab407d2aed68 [INFO] checking claytonwramsey/jam-rs against try#84addd32a13fa2d3f62fe5d99031611147b7fb13 for pr-147565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclaytonwramsey%2Fjam-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/claytonwramsey/jam-rs [INFO] finished tweaking git repo https://github.com/claytonwramsey/jam-rs [INFO] tweaked toml for git repo https://github.com/claytonwramsey/jam-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/claytonwramsey/jam-rs on toolchain 84addd32a13fa2d3f62fe5d99031611147b7fb13 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/claytonwramsey/jam-rs 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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "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 claytonwramsey/jam-rs against try#84addd32a13fa2d3f62fe5d99031611147b7fb13 for pr-147565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclaytonwramsey%2Fjam-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/claytonwramsey/jam-rs [INFO] finished tweaking git repo https://github.com/claytonwramsey/jam-rs [INFO] tweaked toml for git repo https://github.com/claytonwramsey/jam-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/claytonwramsey/jam-rs on toolchain 84addd32a13fa2d3f62fe5d99031611147b7fb13 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/claytonwramsey/jam-rs 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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9dc2a62b8cc6ea8fe2dc56400ad3205be72f38385e4354bed6b7de7d508e454f [INFO] running `Command { std: "docker" "start" "-a" "9dc2a62b8cc6ea8fe2dc56400ad3205be72f38385e4354bed6b7de7d508e454f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9dc2a62b8cc6ea8fe2dc56400ad3205be72f38385e4354bed6b7de7d508e454f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9dc2a62b8cc6ea8fe2dc56400ad3205be72f38385e4354bed6b7de7d508e454f", kill_on_drop: false }` [INFO] [stdout] 9dc2a62b8cc6ea8fe2dc56400ad3205be72f38385e4354bed6b7de7d508e454f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8722f71d1c429050373295cab080e0c6a7ae7b5c72446dbcd918a36a3ec6305b [INFO] running `Command { std: "docker" "start" "-a" "8722f71d1c429050373295cab080e0c6a7ae7b5c72446dbcd918a36a3ec6305b", kill_on_drop: false }` [INFO] [stderr] Checking jam-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `keys` and `eq` are never used [INFO] [stdout] --> src/binding.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 22 | pub trait Environment: Sized + Eq { [INFO] [stdout] | ----------- methods in this trait [INFO] [stdout] 23 | /// Get the set of keys for this environment. [INFO] [stdout] 24 | fn keys<'a>(&'a self) -> Box + 'a>; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | fn eq(&self, other: &Self) -> bool [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 `CallByValue` is never constructed [INFO] [stdout] --> src/binding.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 81 | pub struct CallByValue { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `ValueCell` is never used [INFO] [stdout] --> src/binding.rs:86:6 [INFO] [stdout] | [INFO] [stdout] 86 | type ValueCell = RefCell>>>; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `clone_storage` is never used [INFO] [stdout] --> src/binding.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 88 | impl CallByValue { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 91 | fn clone_storage(&self) -> HashMap { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `NameValue` is never used [INFO] [stdout] --> src/binding.rs:188:6 [INFO] [stdout] | [INFO] [stdout] 188 | type NameValue = (Option>, Rc); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CallByName` is never constructed [INFO] [stdout] --> src/binding.rs:192:12 [INFO] [stdout] | [INFO] [stdout] 192 | pub struct CallByName { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `clone_storage` and `with_storage` are never used [INFO] [stdout] --> src/binding.rs:204:8 [INFO] [stdout] | [INFO] [stdout] 203 | impl CallByName { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 204 | fn clone_storage(&self) -> HashMap>> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 212 | fn with_storage(storage: HashMap>>) -> Rc { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `NeedValue` is never used [INFO] [stdout] --> src/binding.rs:304:6 [INFO] [stdout] | [INFO] [stdout] 304 | enum NeedValue { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `CallByNeed` is never constructed [INFO] [stdout] --> src/binding.rs:314:12 [INFO] [stdout] | [INFO] [stdout] 314 | pub struct CallByNeed { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `clone_storage` and `with_storage` are never used [INFO] [stdout] --> src/binding.rs:322:8 [INFO] [stdout] | [INFO] [stdout] 321 | impl CallByNeed { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 322 | fn clone_storage(&self) -> HashMap>> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 330 | fn with_storage(storage: HashMap>>) -> Rc { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Unbound` and `ForwardReference` are never constructed [INFO] [stdout] --> src/evaluate.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub enum Error { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 12 | /// A variable was unbound and occurred free. [INFO] [stdout] 13 | Unbound(String), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | ForwardReference(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Error` 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: variant `WeakClosure` is never constructed [INFO] [stdout] --> src/value.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 39 | pub enum EitherValue { [INFO] [stdout] | ----------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 53 | WeakClosure { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `EitherValue` 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: function `demote_in` is never used [INFO] [stdout] --> src/value.rs:68:8 [INFO] [stdout] | [INFO] [stdout] 68 | pub fn demote_in(ev: &Rc>, env: &E) -> Rc> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `strengthen` is never used [INFO] [stdout] --> src/value.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 101 | pub fn strengthen(ev: &Rc>) -> Rc> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_strong` and `strongly_refers_to` are never used [INFO] [stdout] --> src/value.rs:127:8 [INFO] [stdout] | [INFO] [stdout] 124 | impl EitherValue { [INFO] [stdout] | ----------------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 127 | fn is_strong(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 140 | fn strongly_refers_to(&self, env: &E) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "8722f71d1c429050373295cab080e0c6a7ae7b5c72446dbcd918a36a3ec6305b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8722f71d1c429050373295cab080e0c6a7ae7b5c72446dbcd918a36a3ec6305b", kill_on_drop: false }` [INFO] [stdout] 8722f71d1c429050373295cab080e0c6a7ae7b5c72446dbcd918a36a3ec6305b