[INFO] fetching crate math-kit 2.0.0...
[INFO] testing math-kit-2.0.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate math-kit 2.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate math-kit 2.0.0
[INFO] finished tweaking crates.io crate math-kit 2.0.0
[INFO] tweaked toml for crates.io crate math-kit 2.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate math-kit 2.0.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eeb14f2c86452cb1709eb6244513089b9fc71f303f9ca998644635ddbb93034
[INFO] running `Command { std: "docker" "start" "-a" "2eeb14f2c86452cb1709eb6244513089b9fc71f303f9ca998644635ddbb93034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eeb14f2c86452cb1709eb6244513089b9fc71f303f9ca998644635ddbb93034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eeb14f2c86452cb1709eb6244513089b9fc71f303f9ca998644635ddbb93034", kill_on_drop: false }`
[INFO] [stdout] 2eeb14f2c86452cb1709eb6244513089b9fc71f303f9ca998644635ddbb93034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6f4bc513c921572f62502b22b312f93970c93bae7d778238348da53a9078913
[INFO] running `Command { std: "docker" "start" "-a" "a6f4bc513c921572f62502b22b312f93970c93bae7d778238348da53a9078913", kill_on_drop: false }`
[INFO] [stderr]    Compiling math-kit v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "a6f4bc513c921572f62502b22b312f93970c93bae7d778238348da53a9078913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f4bc513c921572f62502b22b312f93970c93bae7d778238348da53a9078913", kill_on_drop: false }`
[INFO] [stdout] a6f4bc513c921572f62502b22b312f93970c93bae7d778238348da53a9078913
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 548cd6c2481e9956a0ea2d14c54a96d49544949b5d5383e27cb8285dc7b71117
[INFO] running `Command { std: "docker" "start" "-a" "548cd6c2481e9956a0ea2d14c54a96d49544949b5d5383e27cb8285dc7b71117", kill_on_drop: false }`
[INFO] [stderr]    Compiling math-kit v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `add` in this scope
[INFO] [stdout]   --> src/lib.rs:33:22
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let result = add(2, 2);
[INFO] [stdout]    |                      ^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/lib.rs:3:8
[INFO] [stdout]    |
[INFO] [stdout]  2 | #[cfg(feature="add")]
[INFO] [stdout]    |       ------------- the item is gated behind the `add` feature
[INFO] [stdout]  3 | pub fn add(left: usize, right: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] help: use the `.` operator to call the method `Add::add` on `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] 33 -         let result = add(2, 2);
[INFO] [stdout] 33 +         let result = 2.add(2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `discount` in this scope
[INFO] [stdout]   --> src/lib.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let result = discount(100_000.0, 25.0);
[INFO] [stdout]    |                      ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/lib.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(feature="discount")]
[INFO] [stdout]    |       ------------------ the item is gated behind the `discount` feature
[INFO] [stdout] 23 | pub fn discount(total: f64, discount: f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math-kit` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "548cd6c2481e9956a0ea2d14c54a96d49544949b5d5383e27cb8285dc7b71117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548cd6c2481e9956a0ea2d14c54a96d49544949b5d5383e27cb8285dc7b71117", kill_on_drop: false }`
[INFO] [stdout] 548cd6c2481e9956a0ea2d14c54a96d49544949b5d5383e27cb8285dc7b71117