[INFO] fetching crate walc_model 0.5.2...
[INFO] testing walc_model-0.5.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate walc_model 0.5.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate walc_model 0.5.2
[INFO] finished tweaking crates.io crate walc_model 0.5.2
[INFO] tweaked toml for crates.io crate walc_model 0.5.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate walc_model 0.5.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f351e33f0271dd74e613698ee00faf124a4dfea136c408658c63ad41ede4bc
[INFO] running `Command { std: "docker" "start" "-a" "b7f351e33f0271dd74e613698ee00faf124a4dfea136c408658c63ad41ede4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f351e33f0271dd74e613698ee00faf124a4dfea136c408658c63ad41ede4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f351e33f0271dd74e613698ee00faf124a4dfea136c408658c63ad41ede4bc", kill_on_drop: false }`
[INFO] [stdout] b7f351e33f0271dd74e613698ee00faf124a4dfea136c408658c63ad41ede4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29529b5af3c3a308ca56c611d8a850aa41acf889511447bf8df521ca592fc9d2
[INFO] running `Command { std: "docker" "start" "-a" "29529b5af3c3a308ca56c611d8a850aa41acf889511447bf8df521ca592fc9d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling walc_model v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `interpret` is never used
[INFO] [stdout]  --> src/ast/treewalk_interpreter.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn interpret(ast: &ASTNode) -> Result<f64, String> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "29529b5af3c3a308ca56c611d8a850aa41acf889511447bf8df521ca592fc9d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29529b5af3c3a308ca56c611d8a850aa41acf889511447bf8df521ca592fc9d2", kill_on_drop: false }`
[INFO] [stdout] 29529b5af3c3a308ca56c611d8a850aa41acf889511447bf8df521ca592fc9d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa22d56ee39156fa4ebadf9a47736fc2b4c50835905ab9aac69bebe81b83445e
[INFO] running `Command { std: "docker" "start" "-a" "fa22d56ee39156fa4ebadf9a47736fc2b4c50835905ab9aac69bebe81b83445e", kill_on_drop: false }`
[INFO] [stdout] warning: function `interpret` is never used
[INFO] [stdout]  --> src/ast/treewalk_interpreter.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn interpret(ast: &ASTNode) -> Result<f64, String> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling walc_model v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "fa22d56ee39156fa4ebadf9a47736fc2b4c50835905ab9aac69bebe81b83445e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa22d56ee39156fa4ebadf9a47736fc2b4c50835905ab9aac69bebe81b83445e", kill_on_drop: false }`
[INFO] [stdout] fa22d56ee39156fa4ebadf9a47736fc2b4c50835905ab9aac69bebe81b83445e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 027d9d6a73cab1a6e91398f5137394c7954208d63d7221b9bd0fc08833c9289c
[INFO] running `Command { std: "docker" "start" "-a" "027d9d6a73cab1a6e91398f5137394c7954208d63d7221b9bd0fc08833c9289c", kill_on_drop: false }`
[INFO] [stderr] warning: function `interpret` is never used
[INFO] [stderr]  --> src/ast/treewalk_interpreter.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn interpret(ast: &ASTNode) -> Result<f64, String> {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `walc_model` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/walc_model-51e741bd502e0b09)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_add ... ok
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_divide ... ok
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_divide_zero ... ok
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_double_exponentiate ... ok
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_multiply ... ok
[INFO] [stdout] test ast::treewalk_interpreter::tests::test_subtract ... ok
[INFO] [stdout] test bytecode::bytecode_generator::tests::test_divide ... ok
[INFO] [stdout] test bytecode::bytecode_generator::tests::test_divide_zero ... ok
[INFO] [stdout] test bytecode::bytecode_generator::tests::test_multiply ... ok
[INFO] [stdout] test bytecode::bytecode_generator::tests::test_subtract ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_add ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_divide ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_divide_zero ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_double_exp ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_subtract ... ok
[INFO] [stdout] test frontend::lexer::tests::test_empty ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_multiply ... ok
[INFO] [stdout] test bytecode::bytecode_interpreter::tests::test_pow ... ok
[INFO] [stdout] test bytecode::bytecode_generator::tests::test_add ... ok
[INFO] [stdout] test frontend::lexer::tests::test_exp ... ok
[INFO] [stdout] test frontend::lexer::tests::test_lex ... ok
[INFO] [stdout] test frontend::lexer::tests::test_multiple_errors ... ok
[INFO] [stdout] test frontend::parser::tests::test_empty ... ok
[INFO] [stdout] test frontend::parser::tests::test_invalid_lexeme ... ok
[INFO] [stdout] test frontend::parser::tests::test_multiply_exponentiation ... ok
[INFO] [stdout] test frontend::parser::tests::test_triple_exponentiation ... ok
[INFO] [stdout] test frontend::parser::tests::test_parse ... ok
[INFO] [stdout] test tests::test_div_zero ... ok
[INFO] [stdout] test tests::test_interpret_div ... ok
[INFO] [stdout] test tests::test_double_exponentiate ... ok
[INFO] [stdout] test frontend::parser::tests::test_multiple_errors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests walc_model
[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" "027d9d6a73cab1a6e91398f5137394c7954208d63d7221b9bd0fc08833c9289c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "027d9d6a73cab1a6e91398f5137394c7954208d63d7221b9bd0fc08833c9289c", kill_on_drop: false }`
[INFO] [stdout] 027d9d6a73cab1a6e91398f5137394c7954208d63d7221b9bd0fc08833c9289c