[INFO] updating cached repository https://github.com/sombrastudios/simple_lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5e9870e92f036dbc88ea3cd9391c3ce428d26f0
[INFO] checking sombrastudios/simple_lang against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Fsimple_lang" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sombrastudios/simple_lang on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sombrastudios/simple_lang
[INFO] finished tweaking git repo https://github.com/sombrastudios/simple_lang
[INFO] tweaked toml for git repo https://github.com/sombrastudios/simple_lang written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sombrastudios/simple_lang already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] d77d6fa380fb5dee4e2238572cea12456b985a2c5876db93b29e27b928f11402
[INFO] running `"docker" "start" "-a" "d77d6fa380fb5dee4e2238572cea12456b985a2c5876db93b29e27b928f11402"`
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking simple_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `util::tag_ws`
[INFO] [stderr]  --> src/parse/instructions/statements.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     util::tag_ws,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `map_res`
[INFO] [stderr]   --> src/parse/signature/functions.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     combinator::{map, map_res, opt},
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `bytes::complete::tag`, `character::complete::one_of`, `terminated`
[INFO] [stderr]   --> src/parse/signature/vars.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             bytes::complete::tag,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 15 |             character::complete::one_of,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 16 |             combinator::{map, opt},
[INFO] [stderr] 17 |             sequence::{preceded, terminated, tuple},
[INFO] [stderr]    |                                  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `util::tag_ws`
[INFO] [stderr]  --> src/parse/instructions/statements.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     util::tag_ws,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `map_res`
[INFO] [stderr]   --> src/parse/signature/functions.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     combinator::{map, map_res, opt},
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `bytes::complete::tag`, `character::complete::one_of`, `terminated`
[INFO] [stderr]   --> src/parse/signature/vars.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             bytes::complete::tag,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 15 |             character::complete::one_of,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 16 |             combinator::{map, opt},
[INFO] [stderr] 17 |             sequence::{preceded, terminated, tuple},
[INFO] [stderr]    |                                  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:15:14
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]  --> src/parse/instructions/expression.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stderr]   |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:15:14
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]  --> src/parse/instructions/expression.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fn parse(input: &str) -> nom::IResult<&str, Self> {
[INFO] [stderr]   |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Decl`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Decl(VariableDecl),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Statement`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Statement(Statement),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     Assign(AssignStatement),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Branch`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     Branch(BranchStatement),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     Return(Box<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Loop`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     Loop(Box<ControlFlow>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tag_let`
[INFO] [stderr]   --> src/parse/keyword.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn tag_let(i: &str) -> IResult<&str, &str> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `not_followed`
[INFO] [stderr]   --> src/parse/util.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn not_followed<'a, A, B>(
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `concat`
[INFO] [stderr]   --> src/parse/util.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 | pub fn concat<'a, T, Elem>(
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fold_concat`
[INFO] [stderr]    --> src/parse/util.rs:117:8
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn fold_concat<'a, T, E>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Decl`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Decl(VariableDecl),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Statement`
[INFO] [stderr]   --> src/parse/instructions/control_flow.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Statement(Statement),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     Assign(AssignStatement),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Branch`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     Branch(BranchStatement),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     Return(Box<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Loop`
[INFO] [stderr]    --> src/parse/instructions/statements.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     Loop(Box<ControlFlow>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `not_followed`
[INFO] [stderr]   --> src/parse/util.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn not_followed<'a, A, B>(
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fold_concat`
[INFO] [stderr]    --> src/parse/util.rs:117:8
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn fold_concat<'a, T, E>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.12s
[INFO] running `"docker" "inspect" "d77d6fa380fb5dee4e2238572cea12456b985a2c5876db93b29e27b928f11402"`
[INFO] running `"docker" "rm" "-f" "d77d6fa380fb5dee4e2238572cea12456b985a2c5876db93b29e27b928f11402"`
[INFO] [stdout] d77d6fa380fb5dee4e2238572cea12456b985a2c5876db93b29e27b928f11402