[INFO] cloning repository https://github.com/MonliH/fluo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MonliH/fluo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26fed36cf00984a8b86b25b2a96ee4df920857b3
[INFO] checking MonliH/fluo against try#d93021f5faa26e4f9d2719e79f9974e06aa40e17 for pr-71873
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonliH/fluo on toolchain d93021f5faa26e4f9d2719e79f9974e06aa40e17
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MonliH/fluo
[INFO] finished tweaking git repo https://github.com/MonliH/fluo
[INFO] tweaked toml for git repo https://github.com/MonliH/fluo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v100.0.1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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] 9c5dbe36cd01ea3eb419fbf40904fc03c68ea373b22ea4810240b5723d919cab
[INFO] running `"docker" "start" "-a" "9c5dbe36cd01ea3eb419fbf40904fc03c68ea373b22ea4810240b5723d919cab"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=llvm10-0#f211c50f)
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[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 num-traits v0.2.11
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling llvm-sys v100.0.1
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]    Compiling inkwell_internals v0.1.0 (https://github.com/TheDan64/inkwell?branch=llvm10-0#f211c50f)
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking fluo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant `LINENO_COLOR` should have an upper camel case name
[INFO] [stderr]   --> src/logger/buffer_writer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     LINENO_COLOR,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LinenoColor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr] warning: unused variable: `type_assign`
[INFO] [stderr]    --> src/codegen/module_codegen.rs:112:40
[INFO] [stderr]     |
[INFO] [stderr] 112 |             ast::Statement::TypeAssign(type_assign) => {
[INFO] [stderr]     |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_assign`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]     --> src/typecheck/ast_typecheck.rs:1033:9
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         return_type: Option<Cow<'a, TypeCheckType<'a>>>,
[INFO] [stderr]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_type`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_variable`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn unwrap_variable(self) -> (TypeCheckType<'a>, bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_type`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn unwrap_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_function`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unwrap_function(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_tuple_type`
[INFO] [stderr]    --> src/typecheck/ast_typecheck.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn to_tuple_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant `LINENO_COLOR` should have an upper camel case name
[INFO] [stderr]   --> src/logger/buffer_writer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     LINENO_COLOR,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LinenoColor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_assign`
[INFO] [stderr]    --> src/codegen/module_codegen.rs:112:40
[INFO] [stderr]     |
[INFO] [stderr] 112 |             ast::Statement::TypeAssign(type_assign) => {
[INFO] [stderr]     |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_assign`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]     --> src/typecheck/ast_typecheck.rs:1033:9
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         return_type: Option<Cow<'a, TypeCheckType<'a>>>,
[INFO] [stderr]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_type`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_variable`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn unwrap_variable(self) -> (TypeCheckType<'a>, bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_type`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn unwrap_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_function`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unwrap_function(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_tuple_type`
[INFO] [stderr]    --> src/typecheck/ast_typecheck.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn to_tuple_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant `LINENO_COLOR` should have an upper camel case name
[INFO] [stderr]   --> src/logger/buffer_writer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     LINENO_COLOR,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LinenoColor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `LINENO_COLOR` should have an upper camel case name
[INFO] [stderr]   --> src/logger/buffer_writer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     LINENO_COLOR,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LinenoColor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_assign`
[INFO] [stderr]    --> src/codegen/module_codegen.rs:112:40
[INFO] [stderr]     |
[INFO] [stderr] 112 |             ast::Statement::TypeAssign(type_assign) => {
[INFO] [stderr]     |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_assign`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]     --> src/typecheck/ast_typecheck.rs:1033:9
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         return_type: Option<Cow<'a, TypeCheckType<'a>>>,
[INFO] [stderr]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_type`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_assign`
[INFO] [stderr]    --> src/codegen/module_codegen.rs:112:40
[INFO] [stderr]     |
[INFO] [stderr] 112 |             ast::Statement::TypeAssign(type_assign) => {
[INFO] [stderr]     |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_assign`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]     --> src/typecheck/ast_typecheck.rs:1033:9
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         return_type: Option<Cow<'a, TypeCheckType<'a>>>,
[INFO] [stderr]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_type`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_variable`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn unwrap_variable(self) -> (TypeCheckType<'a>, bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_type`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn unwrap_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_function`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unwrap_function(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_tuple_type`
[INFO] [stderr]    --> src/typecheck/ast_typecheck.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn to_tuple_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_variable`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn unwrap_variable(self) -> (TypeCheckType<'a>, bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_type`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn unwrap_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unwrap_function`
[INFO] [stderr]   --> src/typecheck/ast_typecheck.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn unwrap_function(self) -> TypeCheckType<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_tuple_type`
[INFO] [stderr]    --> src/typecheck/ast_typecheck.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn to_tuple_type(self) -> TypeCheckType<'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `"docker" "inspect" "9c5dbe36cd01ea3eb419fbf40904fc03c68ea373b22ea4810240b5723d919cab"`
[INFO] running `"docker" "rm" "-f" "9c5dbe36cd01ea3eb419fbf40904fc03c68ea373b22ea4810240b5723d919cab"`
[INFO] [stdout] 9c5dbe36cd01ea3eb419fbf40904fc03c68ea373b22ea4810240b5723d919cab