[INFO] fetching crate qopt 0.19.4...
[INFO] testing qopt-0.19.4 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate qopt 0.19.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate qopt 0.19.4
[INFO] finished tweaking crates.io crate qopt 0.19.4
[INFO] tweaked toml for crates.io crate qopt 0.19.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qopt 0.19.4 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding maria-linalg v0.10.0 (available: v1.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0996db6c02d9e516fd8496e2b4f5bceab1ceff19f77848a6c629a8dbbe8b03b2
[INFO] running `Command { std: "docker" "start" "-a" "0996db6c02d9e516fd8496e2b4f5bceab1ceff19f77848a6c629a8dbbe8b03b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0996db6c02d9e516fd8496e2b4f5bceab1ceff19f77848a6c629a8dbbe8b03b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0996db6c02d9e516fd8496e2b4f5bceab1ceff19f77848a6c629a8dbbe8b03b2", kill_on_drop: false }`
[INFO] [stdout] 0996db6c02d9e516fd8496e2b4f5bceab1ceff19f77848a6c629a8dbbe8b03b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b480bcccdf4b62e35348cb8f677e7dabefa9673f994545c1477f64090ba2f11b
[INFO] running `Command { std: "docker" "start" "-a" "b480bcccdf4b62e35348cb8f677e7dabefa9673f994545c1477f64090ba2f11b", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling maria-linalg v0.10.0
[INFO] [stderr]    Compiling qopt v0.19.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `error` and `help`
[INFO] [stdout]   --> src/optimizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     error,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     help,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "b480bcccdf4b62e35348cb8f677e7dabefa9673f994545c1477f64090ba2f11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b480bcccdf4b62e35348cb8f677e7dabefa9673f994545c1477f64090ba2f11b", kill_on_drop: false }`
[INFO] [stdout] b480bcccdf4b62e35348cb8f677e7dabefa9673f994545c1477f64090ba2f11b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98af4906478c7234bc77fdcdb5a5e0610c88ab081cc1615ec9050554d545d9d6
[INFO] running `Command { std: "docker" "start" "-a" "98af4906478c7234bc77fdcdb5a5e0610c88ab081cc1615ec9050554d545d9d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling qopt v0.19.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `error` and `help`
[INFO] [stdout]   --> src/optimizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     error,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     help,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `help`
[INFO] [stdout]   --> src/optimizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     error,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     help,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "98af4906478c7234bc77fdcdb5a5e0610c88ab081cc1615ec9050554d545d9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98af4906478c7234bc77fdcdb5a5e0610c88ab081cc1615ec9050554d545d9d6", kill_on_drop: false }`
[INFO] [stdout] 98af4906478c7234bc77fdcdb5a5e0610c88ab081cc1615ec9050554d545d9d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04057600dff032bcb539b331ddeb19b5571151af4c171f7be6eff0366cb76a2f
[INFO] running `Command { std: "docker" "start" "-a" "04057600dff032bcb539b331ddeb19b5571151af4c171f7be6eff0366cb76a2f", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `error` and `help`
[INFO] [stderr]   --> src/optimizer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     error,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 16 |     help,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `qopt` (lib) generated 1 warning (run `cargo fix --lib -p qopt` to apply 1 suggestion)
[INFO] [stderr] warning: `qopt` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qopt-0acac0f5cc7b4dfe)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests qopt
[INFO] [stdout] test optimizer::sort ... 
[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" "04057600dff032bcb539b331ddeb19b5571151af4c171f7be6eff0366cb76a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04057600dff032bcb539b331ddeb19b5571151af4c171f7be6eff0366cb76a2f", kill_on_drop: false }`
[INFO] [stdout] 04057600dff032bcb539b331ddeb19b5571151af4c171f7be6eff0366cb76a2f