[INFO] cloning repository https://github.com/alexandercampbell/halftau
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexandercampbell/halftau" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandercampbell%2Fhalftau"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandercampbell%2Fhalftau'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32d0fc96ffb270b5927336ba8a1074c6e85f709d
[INFO] checking alexandercampbell/halftau against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandercampbell%2Fhalftau" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexandercampbell/halftau on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alexandercampbell/halftau
[INFO] finished tweaking git repo https://github.com/alexandercampbell/halftau
[INFO] tweaked toml for git repo https://github.com/alexandercampbell/halftau written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alexandercampbell/halftau already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 334657bfbeb4b679791441ec2d4cea8ae894a22736baa6beb1fef599de16c0c3
[INFO] running `"docker" "start" "-a" "334657bfbeb4b679791441ec2d4cea8ae894a22736baa6beb1fef599de16c0c3"`
[INFO] [stderr]     Checking halftau v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `lexical_bindings`
[INFO] [stderr]   --> src/runtime.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     lexical_bindings,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^ help: try ignoring the field: `lexical_bindings: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_sig`
[INFO] [stderr]   --> src/runtime.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     type_sig,
[INFO] [stderr]    |                     ^^^^^^^^ help: try ignoring the field: `type_sig: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]   --> src/runtime.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |                     body,
[INFO] [stderr]    |                     ^^^^ help: try ignoring the field: `body: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_sig`
[INFO] [stderr]   --> src/runtime.rs:33:42
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 Value::BuiltinFunction { type_sig, exec } => {
[INFO] [stderr]    |                                          ^^^^^^^^ help: try ignoring the field: `type_sig: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Double`
[INFO] [stderr]   --> src/model.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Double,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String_`
[INFO] [stderr]   --> src/model.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     String_,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/model.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Function(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Vector`
[INFO] [stderr]   --> src/model.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Vector(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String_`
[INFO] [stderr]   --> src/model.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     String_(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Vector`
[INFO] [stderr]   --> src/model.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 | /     Vector {
[INFO] [stderr] 45 | |         type_: Type,
[INFO] [stderr] 46 | |         elts: Vec<Value>,
[INFO] [stderr] 47 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/model.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     Function {
[INFO] [stderr] 49 | |         lexical_bindings: Vec<String>,
[INFO] [stderr] 50 | |         type_sig: Vec<Type>,
[INFO] [stderr] 51 | |         body: Vec<Value>,
[INFO] [stderr] 52 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `typeof_`
[INFO] [stderr]   --> src/model.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn typeof_(v: &Value) -> Type {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexical_bindings`
[INFO] [stderr]   --> src/runtime.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     lexical_bindings,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^ help: try ignoring the field: `lexical_bindings: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_sig`
[INFO] [stderr]   --> src/runtime.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     type_sig,
[INFO] [stderr]    |                     ^^^^^^^^ help: try ignoring the field: `type_sig: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]   --> src/runtime.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |                     body,
[INFO] [stderr]    |                     ^^^^ help: try ignoring the field: `body: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_sig`
[INFO] [stderr]   --> src/runtime.rs:33:42
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 Value::BuiltinFunction { type_sig, exec } => {
[INFO] [stderr]    |                                          ^^^^^^^^ help: try ignoring the field: `type_sig: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Double`
[INFO] [stderr]   --> src/model.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Double,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String_`
[INFO] [stderr]   --> src/model.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     String_,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/model.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Function(Vec<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Vector`
[INFO] [stderr]   --> src/model.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Vector(Box<Type>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String_`
[INFO] [stderr]   --> src/model.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     String_(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Vector`
[INFO] [stderr]   --> src/model.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 | /     Vector {
[INFO] [stderr] 45 | |         type_: Type,
[INFO] [stderr] 46 | |         elts: Vec<Value>,
[INFO] [stderr] 47 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]   --> src/model.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     Function {
[INFO] [stderr] 49 | |         lexical_bindings: Vec<String>,
[INFO] [stderr] 50 | |         type_sig: Vec<Type>,
[INFO] [stderr] 51 | |         body: Vec<Value>,
[INFO] [stderr] 52 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `typeof_`
[INFO] [stderr]   --> src/model.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn typeof_(v: &Value) -> Type {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "334657bfbeb4b679791441ec2d4cea8ae894a22736baa6beb1fef599de16c0c3"`
[INFO] running `"docker" "rm" "-f" "334657bfbeb4b679791441ec2d4cea8ae894a22736baa6beb1fef599de16c0c3"`
[INFO] [stdout] 334657bfbeb4b679791441ec2d4cea8ae894a22736baa6beb1fef599de16c0c3