[INFO] fetching crate monkey-parser 0.9.1...
[INFO] testing monkey-parser-0.9.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate monkey-parser 0.9.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate monkey-parser 0.9.1
[INFO] finished tweaking crates.io crate monkey-parser 0.9.1
[INFO] tweaked toml for crates.io crate monkey-parser 0.9.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate monkey-parser 0.9.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate monkey-parser 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded similar v2.1.0
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded proc-macro2 v1.0.58
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded serde_derive v1.0.163
[INFO] [stderr]   Downloaded serde v1.0.163
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded monkey-lexer v0.9.1
[INFO] [stderr]   Downloaded insta v1.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3db0b75c3368bfb00f8258c5c792ac8a64598704f05ae140eb3d3bcef7b8dae5
[INFO] running `Command { std: "docker" "start" "-a" "3db0b75c3368bfb00f8258c5c792ac8a64598704f05ae140eb3d3bcef7b8dae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3db0b75c3368bfb00f8258c5c792ac8a64598704f05ae140eb3d3bcef7b8dae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db0b75c3368bfb00f8258c5c792ac8a64598704f05ae140eb3d3bcef7b8dae5", kill_on_drop: false }`
[INFO] [stdout] 3db0b75c3368bfb00f8258c5c792ac8a64598704f05ae140eb3d3bcef7b8dae5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bfc893ce6caa6bfa83dd88388694687b1591f7a0b5651e500dee2c459f656c6
[INFO] running `Command { std: "docker" "start" "-a" "4bfc893ce6caa6bfa83dd88388694687b1591f7a0b5651e500dee2c459f656c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]    Compiling monkey-lexer v0.9.1
[INFO] [stderr]    Compiling monkey-parser v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `identifier_name` is never read
[INFO] [stdout]    --> lib.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let mut identifier_name = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.96s
[INFO] running `Command { std: "docker" "inspect" "4bfc893ce6caa6bfa83dd88388694687b1591f7a0b5651e500dee2c459f656c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bfc893ce6caa6bfa83dd88388694687b1591f7a0b5651e500dee2c459f656c6", kill_on_drop: false }`
[INFO] [stdout] 4bfc893ce6caa6bfa83dd88388694687b1591f7a0b5651e500dee2c459f656c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b1e963b322af1b76bc65c04d5ea033587e2f659b8d94d382d068af287ded1b
[INFO] running `Command { std: "docker" "start" "-a" "d3b1e963b322af1b76bc65c04d5ea033587e2f659b8d94d382d068af287ded1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling similar v2.1.0
[INFO] [stdout] warning: value assigned to `identifier_name` is never read
[INFO] [stdout]    --> lib.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let mut identifier_name = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling console v0.15.5
[INFO] [stderr]    Compiling insta v1.29.0
[INFO] [stderr]    Compiling monkey-parser v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `identifier_name` is never read
[INFO] [stdout]    --> lib.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let mut identifier_name = "".to_string();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "d3b1e963b322af1b76bc65c04d5ea033587e2f659b8d94d382d068af287ded1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b1e963b322af1b76bc65c04d5ea033587e2f659b8d94d382d068af287ded1b", kill_on_drop: false }`
[INFO] [stdout] d3b1e963b322af1b76bc65c04d5ea033587e2f659b8d94d382d068af287ded1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f50bbb488c13a8e94a88f91fddf44970f6796878e38c283efcab13fec213a471
[INFO] running `Command { std: "docker" "start" "-a" "f50bbb488c13a8e94a88f91fddf44970f6796878e38c283efcab13fec213a471", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `identifier_name` is never read
[INFO] [stderr]    --> lib.rs:100:17
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let mut identifier_name = "".to_string();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-parser` (lib) generated 1 warning
[INFO] [stderr] warning: `monkey-parser` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/parser-2b42f95d76d7db2a)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test parser_test::tests::parse_brace_expression ... ok
[INFO] [stdout] test parser_test::tests::parse_let_statement ... ok
[INFO] [stdout] test parser_test::tests::parse_return_statement ... ok
[INFO] [stdout] test parser_test::tests::test_array_literal_expression ... ok
[INFO] [stdout] test parser_test::tests::test_fn_call_else_expression ... ok
[INFO] [stdout] test parser_test::tests::test_fn_else_expression ... ok
[INFO] [stdout] test parser_test::tests::parse_op_expression ... ok
[INFO] [stdout] test parser_test::tests::test_if_expression ... ok
[INFO] [stdout] test parser_test::tests::test_index_expression ... ok
[INFO] [stdout] test parser_test::tests::test_hash_literal_expression ... ok
[INFO] [stdout] test parser_test::tests::test_if_else_expression ... ok
[INFO] [stdout] test parser_test::tests::test_parse_prefix_expression ... ok
[INFO] [stdout] test parser_test::tests::test_string_literal_expression ... ok
[INFO] [stdout] test parser_test::tests::test_parse_infix_expression ... ok
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/debug/deps/monkey_parser-f43fca473a1f4f73)
[INFO] [stdout] test ast_tree_test::tests::test_array ... ok
[INFO] [stdout] test ast_tree_test::tests::test_func_declaration ... ok
[INFO] [stdout] test ast_tree_test::tests::test_func_call ... ok
[INFO] [stdout] test ast_tree_test::tests::test_binary_nested ... ok
[INFO] [stdout] test ast_tree_test::tests::test_let ... ok
[INFO] [stdout] test ast_tree_test::tests::test_unary ... ok
[INFO] [stdout] test ast_tree_test::tests::test_binary ... ok
[INFO] [stdout] test ast_tree_test::tests::test_if ... ok
[INFO] [stdout] test ast_tree_test::tests::test_string ... ok
[INFO] [stdout] test ast_tree_test::tests::test_func_with_name ... ok
[INFO] [stdout] test ast_tree_test::tests::test_return ... ok
[INFO] [stdout] test ast_tree_test::tests::test_index ... ok
[INFO] [stdout] test ast_tree_test::tests::test_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parser
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f50bbb488c13a8e94a88f91fddf44970f6796878e38c283efcab13fec213a471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50bbb488c13a8e94a88f91fddf44970f6796878e38c283efcab13fec213a471", kill_on_drop: false }`
[INFO] [stdout] f50bbb488c13a8e94a88f91fddf44970f6796878e38c283efcab13fec213a471