[INFO] crate nyar_valkyrie 0.0.8 is already in cache
[INFO] checking nyar_valkyrie-0.0.8 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate nyar_valkyrie 0.0.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nyar_valkyrie 0.0.8 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nyar_valkyrie 0.0.8
[INFO] finished tweaking crates.io crate nyar_valkyrie 0.0.8
[INFO] tweaked toml for crates.io crate nyar_valkyrie 0.0.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 9a5b72377d3eaa8dd4edecd4a2e8ce635090b78fa81df1efd92d468e7ed56898
[INFO] running `"docker" "start" "-a" "9a5b72377d3eaa8dd4edecd4a2e8ce635090b78fa81df1efd92d468e7ed56898"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.109
[INFO] [stderr]     Checking nyar_ast v0.0.8
[INFO] [stderr]     Checking nyar_valkyrie v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]    --> src/grammar.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |     let mut base = AST::None;
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/grammar.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let args = std::env::args();
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |     let mut base = AST::None;
[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: unused variable: `base`
[INFO] [stderr]    --> src/grammar.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |     let mut base = AST::None;
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/grammar.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let args = std::env::args();
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |     let mut base = AST::None;
[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: function is never used: `parse_dict`
[INFO] [stderr]    --> src/grammar.rs:225:4
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn parse_dict(pairs: Pair<Rule>) -> AST {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_pair`
[INFO] [stderr]  --> src/utils.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn format_pair(pair: Pair<&str>, indent_level: usize, is_newline: bool) -> String {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_dict`
[INFO] [stderr]    --> src/grammar.rs:225:4
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn parse_dict(pairs: Pair<Rule>) -> AST {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_pair`
[INFO] [stderr]  --> src/utils.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn format_pair(pair: Pair<&str>, indent_level: usize, is_newline: bool) -> String {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_number.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     ast.save("tests/debug_bytes.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_number.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     ast.save("tests/debug_numbers.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_assign.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     ast.save("tests/debug_let.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_if.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     ast.save("tests/debug_if.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_expr.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     ast.save("tests/debug_expr.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_expr.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ast.save("tests/debug_list_or_slice.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_expr.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     ast.save("tests/debug_expr_brackets.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/test_expr.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     ast.save("tests/debug_dot_call.json");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.32s
[INFO] running `"docker" "inspect" "9a5b72377d3eaa8dd4edecd4a2e8ce635090b78fa81df1efd92d468e7ed56898"`
[INFO] running `"docker" "rm" "-f" "9a5b72377d3eaa8dd4edecd4a2e8ce635090b78fa81df1efd92d468e7ed56898"`
[INFO] [stdout] 9a5b72377d3eaa8dd4edecd4a2e8ce635090b78fa81df1efd92d468e7ed56898