[INFO] fetching crate math-kit 2.0.0...
[INFO] testing math-kit-2.0.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[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 c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b89284c3c6be9dec96fa2af571bd78855e971636fd6817fb0d9b822eeeb920
[INFO] running `Command { std: "docker" "start" "-a" "e7b89284c3c6be9dec96fa2af571bd78855e971636fd6817fb0d9b822eeeb920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b89284c3c6be9dec96fa2af571bd78855e971636fd6817fb0d9b822eeeb920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b89284c3c6be9dec96fa2af571bd78855e971636fd6817fb0d9b822eeeb920", kill_on_drop: false }`
[INFO] [stdout] e7b89284c3c6be9dec96fa2af571bd78855e971636fd6817fb0d9b822eeeb920
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4004aa9c2c9931be08f7d167af5da52e7b68dfd3a53b68b8047aeaeaa9d92fbb
[INFO] running `Command { std: "docker" "start" "-a" "4004aa9c2c9931be08f7d167af5da52e7b68dfd3a53b68b8047aeaeaa9d92fbb", 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 0.07s
[INFO] running `Command { std: "docker" "inspect" "4004aa9c2c9931be08f7d167af5da52e7b68dfd3a53b68b8047aeaeaa9d92fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4004aa9c2c9931be08f7d167af5da52e7b68dfd3a53b68b8047aeaeaa9d92fbb", kill_on_drop: false }`
[INFO] [stdout] 4004aa9c2c9931be08f7d167af5da52e7b68dfd3a53b68b8047aeaeaa9d92fbb
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7842f2c4f41da91e3d19d64f539b7dd3ce8ed9044dd39a6e675f0033fff09f42
[INFO] running `Command { std: "docker" "start" "-a" "7842f2c4f41da91e3d19d64f539b7dd3ce8ed9044dd39a6e675f0033fff09f42", 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)]` (part of `#[warn(unused)]`) 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" "7842f2c4f41da91e3d19d64f539b7dd3ce8ed9044dd39a6e675f0033fff09f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7842f2c4f41da91e3d19d64f539b7dd3ce8ed9044dd39a6e675f0033fff09f42", kill_on_drop: false }`
[INFO] [stdout] 7842f2c4f41da91e3d19d64f539b7dd3ce8ed9044dd39a6e675f0033fff09f42