[INFO] cloning repository https://github.com/reese/rox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reese/rox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freese%2Frox"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freese%2Frox'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad32b1c37c5beb414aa04d7bb27ad836e50e7067
[INFO] checking reese/rox against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freese%2Frox" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reese/rox on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/reese/rox
[INFO] finished tweaking git repo https://github.com/reese/rox
[INFO] tweaked toml for git repo https://github.com/reese/rox written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/reese/rox already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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] 40276f51ba77a61fb7a970618babdfed4738ccd240b0ae3a270b824d96b61691
[INFO] running `"docker" "start" "-a" "40276f51ba77a61fb7a970618babdfed4738ccd240b0ae3a270b824d96b61691"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.63.0
[INFO] [stderr]    Compiling cranelift-entity v0.63.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling im v14.3.0
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking itertools v0.9.0
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[INFO] [stderr]     Checking typenum v1.12.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking cranelift-bforest v0.63.0
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[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking regalloc v0.0.21
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling sha2 v0.8.1
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[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]     Checking crossbeam-queue v0.2.1
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[INFO] [stderr]     Checking crossbeam-deque v0.7.3
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[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking lalrpop-util v0.18.1
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling thiserror-impl v1.0.18
[INFO] [stderr]    Compiling cranelift-codegen v0.63.0
[INFO] [stderr]     Checking thiserror v1.0.18
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]     Checking cranelift-frontend v0.63.0
[INFO] [stderr]     Checking cranelift-module v0.63.0
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking cranelift-object v0.63.0
[INFO] [stderr]     Checking cranelift v0.63.0
[INFO] [stderr]    Compiling lalrpop v0.18.1
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr]    Compiling rox-lang v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `variable_name`
[INFO] [stderr]   --> src/roxc/function_translator.rs:53:33
[INFO] [stderr]    |
[INFO] [stderr] 53 |             Statement::Variable(variable_name, expression) => {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `variable_name`
[INFO] [stderr]   --> src/roxc/function_translator.rs:53:33
[INFO] [stderr]    |
[INFO] [stderr] 53 |             Statement::Variable(variable_name, expression) => {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data_context`
[INFO] [stderr]   --> src/roxc/compile.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     data_context: DataContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_empty`
[INFO] [stderr]   --> src/roxc/stack.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]   --> src/roxc/stack.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]  --> src/roxc/syntax.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Identifier(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Print`
[INFO] [stderr]   --> src/roxc/syntax.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Print(Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfElse`
[INFO] [stderr]   --> src/roxc/syntax.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     IfElse(Box<Expression>, Block, Option<Block>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UserType`
[INFO] [stderr]   --> src/roxc/syntax.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     UserType(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]   --> src/roxc/syntax.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Variable(String, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data_context`
[INFO] [stderr]   --> src/roxc/compile.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     data_context: DataContext,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_empty`
[INFO] [stderr]   --> src/roxc/stack.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop`
[INFO] [stderr]   --> src/roxc/stack.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]  --> src/roxc/syntax.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Identifier(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Print`
[INFO] [stderr]   --> src/roxc/syntax.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Print(Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfElse`
[INFO] [stderr]   --> src/roxc/syntax.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     IfElse(Box<Expression>, Block, Option<Block>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UserType`
[INFO] [stderr]   --> src/roxc/syntax.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     UserType(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]   --> src/roxc/syntax.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Variable(String, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rox::Value`
[INFO] [stderr]  --> benches/benchmark.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rox::Value;
[INFO] [stderr]   |     ^^^^^^^^^^ no `Value` in the root
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `rox-lang`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "40276f51ba77a61fb7a970618babdfed4738ccd240b0ae3a270b824d96b61691"`
[INFO] running `"docker" "rm" "-f" "40276f51ba77a61fb7a970618babdfed4738ccd240b0ae3a270b824d96b61691"`
[INFO] [stdout] 40276f51ba77a61fb7a970618babdfed4738ccd240b0ae3a270b824d96b61691