[INFO] updating cached repository gcao/gene.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gcao/gene.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gcao/gene.rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gcao/gene.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gcao/gene.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gcao/gene.rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gcao/gene.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gcao/gene.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 47258c19f06b1f23451c56e7ebef1fbca7ff3893
[INFO] sha for GitHub repo gcao/gene.rs: 47258c19f06b1f23451c56e7ebef1fbca7ff3893
[INFO] validating manifest of gcao/gene.rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gcao/gene.rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gcao/gene.rs
[INFO] finished frobbing gcao/gene.rs
[INFO] frobbed toml for gcao/gene.rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gcao/gene.rs/Cargo.toml
[INFO] started frobbing gcao/gene.rs
[INFO] finished frobbing gcao/gene.rs
[INFO] frobbed toml for gcao/gene.rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gcao/gene.rs/Cargo.toml
[INFO] crate gcao/gene.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gcao/gene.rs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gcao/gene.rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3dc0a910bb6ba1612013c9ebe78e4c2a8e42d53be4f5d594fb0ec6a2f54ab46a
[INFO] running `"docker" "start" "-a" "3dc0a910bb6ba1612013c9ebe78e4c2a8e42d53be4f5d594fb0ec6a2f54ab46a"`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking gene v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `block_id`
[INFO] [stderr]   --> src/compiler.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let block_id = block.id.clone();
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_block_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/vm/mod.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     op: &'a str,
[INFO] [stderr]     |     ^^ help: consider prefixing with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block_id`
[INFO] [stderr]   --> src/compiler.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let block_id = block.id.clone();
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_block_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/vm/mod.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 |     op: &'a str,
[INFO] [stderr]     |     ^^ help: consider prefixing with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NAMESPACE`
[INFO] [stderr]   --> src/vm/types.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     NAMESPACE,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/types.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(parent: Context) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/types.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(parent: Self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `def_member`
[INFO] [stderr]   --> src/vm/types.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn def_member(&mut self, name: String, value: Rc<RefCell<Any>>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/vm/types.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub fn new(parent: Scope) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Module`
[INFO] [stderr]    --> src/vm/types.rs:158:1
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub struct Module {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `block`
[INFO] [stderr]   --> src/vm/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     block: Option<Block>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `app`
[INFO] [stderr]   --> src/vm/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     app: Application,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `range_contains` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(range_contains)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NAMESPACE`
[INFO] [stderr]   --> src/vm/types.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     NAMESPACE,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/types.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(parent: Context) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/types.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(parent: Self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `def_member`
[INFO] [stderr]   --> src/vm/types.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn def_member(&mut self, name: String, value: Rc<RefCell<Any>>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/vm/types.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub fn new(parent: Scope) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Module`
[INFO] [stderr]    --> src/vm/types.rs:158:1
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub struct Module {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `block`
[INFO] [stderr]   --> src/vm/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     block: Option<Block>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `app`
[INFO] [stderr]   --> src/vm/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     app: Application,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `range_contains` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(range_contains)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ordered_float::OrderedFloat`
[INFO] [stderr]  --> tests/wip_tests.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ordered_float::OrderedFloat;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]  --> tests/wip_tests.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::collections::BTreeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gene::compiler::Compiler`
[INFO] [stderr]   --> tests/wip_tests.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use gene::compiler::Compiler;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gene::parser::Parser`
[INFO] [stderr]   --> tests/wip_tests.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use gene::parser::Parser;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gene::types::Gene`
[INFO] [stderr]   --> tests/wip_tests.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use gene::types::Gene;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gene::types::Value`
[INFO] [stderr]   --> tests/wip_tests.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use gene::types::Value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gene::vm::VirtualMachine`
[INFO] [stderr]   --> tests/wip_tests.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use gene::vm::VirtualMachine;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `compiler`
[INFO] [stderr]    --> tests/vm_tests.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut compiler = Compiler::new();
[INFO] [stderr]     |             ^^^^^^^^ help: consider prefixing with an underscore: `_compiler`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vm`
[INFO] [stderr]    --> tests/vm_tests.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut vm = VirtualMachine::new();
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_vm`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/vm_tests.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut compiler = Compiler::new();
[INFO] [stderr]     |         ----^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/vm_tests.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut vm = VirtualMachine::new();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.52s
[INFO] running `"docker" "inspect" "3dc0a910bb6ba1612013c9ebe78e4c2a8e42d53be4f5d594fb0ec6a2f54ab46a"`
[INFO] running `"docker" "rm" "-f" "3dc0a910bb6ba1612013c9ebe78e4c2a8e42d53be4f5d594fb0ec6a2f54ab46a"`
[INFO] [stdout] 3dc0a910bb6ba1612013c9ebe78e4c2a8e42d53be4f5d594fb0ec6a2f54ab46a