[INFO] cloning repository https://github.com/MDeiml/mademath [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MDeiml/mademath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDeiml%2Fmademath", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDeiml%2Fmademath'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4aac4dad3cd776dd2cb1602aa930c04c315d5186 [INFO] testing MDeiml/mademath against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMDeiml%2Fmademath" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MDeiml/mademath on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MDeiml/mademath [INFO] finished tweaking git repo https://github.com/MDeiml/mademath [INFO] tweaked toml for git repo https://github.com/MDeiml/mademath written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/MDeiml/mademath already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 90cb4a8b3ccc739d2dfb63ef93c46c00d6c83a15918963bd8699c0dad403603a [INFO] running `Command { std: "docker" "start" "-a" "90cb4a8b3ccc739d2dfb63ef93c46c00d6c83a15918963bd8699c0dad403603a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "90cb4a8b3ccc739d2dfb63ef93c46c00d6c83a15918963bd8699c0dad403603a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90cb4a8b3ccc739d2dfb63ef93c46c00d6c83a15918963bd8699c0dad403603a", kill_on_drop: false }` [INFO] [stdout] 90cb4a8b3ccc739d2dfb63ef93c46c00d6c83a15918963bd8699c0dad403603a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2fb42cbd96a3da97ba1f3273c2fbcefee30e3870f6236715a4f071a7c78d00d [INFO] running `Command { std: "docker" "start" "-a" "b2fb42cbd96a3da97ba1f3273c2fbcefee30e3870f6236715a4f071a7c78d00d", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling minimal-lexical v0.1.3 [INFO] [stderr] Compiling nom v7.0.0 [INFO] [stderr] Compiling attomath v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/serialization/database.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.37s [INFO] running `Command { std: "docker" "inspect" "b2fb42cbd96a3da97ba1f3273c2fbcefee30e3870f6236715a4f071a7c78d00d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2fb42cbd96a3da97ba1f3273c2fbcefee30e3870f6236715a4f071a7c78d00d", kill_on_drop: false }` [INFO] [stdout] b2fb42cbd96a3da97ba1f3273c2fbcefee30e3870f6236715a4f071a7c78d00d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ced8abeba77895b62f7f284871dfd7293dad183edd0cc26f05949959bf14c00f [INFO] running `Command { std: "docker" "start" "-a" "ced8abeba77895b62f7f284871dfd7293dad183edd0cc26f05949959bf14c00f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.102 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/serialization/database.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling env_logger v0.8.4 [INFO] [stderr] Compiling quickcheck v1.0.3 [INFO] [stderr] Compiling attomath v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/serialization/database.rs:114:17 [INFO] [stdout] | [INFO] [stdout] 114 | &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = &entry.insert((self.last_name, index + 1)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 34.53s [INFO] running `Command { std: "docker" "inspect" "ced8abeba77895b62f7f284871dfd7293dad183edd0cc26f05949959bf14c00f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ced8abeba77895b62f7f284871dfd7293dad183edd0cc26f05949959bf14c00f", kill_on_drop: false }` [INFO] [stdout] ced8abeba77895b62f7f284871dfd7293dad183edd0cc26f05949959bf14c00f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8edb8a365aded837f5e75cd3452a79d110acd5993377b7a59149a88c02ddd5c6 [INFO] running `Command { std: "docker" "start" "-a" "8edb8a365aded837f5e75cd3452a79d110acd5993377b7a59149a88c02ddd5c6", kill_on_drop: false }` [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/serialization/database.rs:114:17 [INFO] [stderr] | [INFO] [stderr] 114 | &entry.insert((self.last_name, index + 1)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 114 | let _ = &entry.insert((self.last_name, index + 1)); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `attomath` (lib) generated 1 warning [INFO] [stderr] warning: `attomath` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/attomath-b175ddc530658660) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test theorem::tests::permutations ... ok [INFO] [stdout] test expression::tests::from_raw_single_variable ... ok [INFO] [stdout] test serialization::command::tests::a_b_c ... ok [INFO] [stdout] test serialization::command::tests::id ... ok [INFO] [stdout] test expression::tests::unify_substitute ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/attomath-0feaf24873574140) [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 attomath [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test src/dvr.rs - dvr::DVR::new (line 28) ... ok [INFO] [stdout] test src/expression.rs - expression::Expression::subexpression (line 131) ... ok [INFO] [stdout] test src/expression.rs - expression::Substitution::substitution_opt (line 480) ... ok [INFO] [stdout] test src/expression.rs - expression::is_operator (line 288) ... ok [INFO] [stdout] test src/statement.rs - statement::Statement::unify (line 37) ... ok [INFO] [stdout] test src/expression.rs - expression::Expression::standardize (line 47) ... ok [INFO] [stdout] test src/expression.rs - expression::Expression::unify (line 158) ... ok [INFO] [stdout] test src/expression.rs - expression::WholeSubstitution::insert (line 388) ... ok [INFO] [stdout] test src/expression.rs - expression::Expression::substitute (line 230) ... ok [INFO] [stdout] test src/serialization/formatter.rs - serialization::formatter::Formatter (line 25) ... ok [INFO] [stdout] test src/dvr.rs - dvr::DVR::substitute (line 60) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8edb8a365aded837f5e75cd3452a79d110acd5993377b7a59149a88c02ddd5c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8edb8a365aded837f5e75cd3452a79d110acd5993377b7a59149a88c02ddd5c6", kill_on_drop: false }` [INFO] [stdout] 8edb8a365aded837f5e75cd3452a79d110acd5993377b7a59149a88c02ddd5c6