[INFO] fetching crate qopt 0.19.4...
[INFO] testing qopt-0.19.4 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_0
[INFO] extracting crate qopt 0.19.4 into /workspace/builds/worker-7-tc1/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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qopt 0.19.4 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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: v0.9.1)
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maria-linalg v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5139d54480b7e5008407d61deac42dbbf4fdea50bf4136564261cce3d2dcdd48
[INFO] running `Command { std: "docker" "start" "-a" "5139d54480b7e5008407d61deac42dbbf4fdea50bf4136564261cce3d2dcdd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5139d54480b7e5008407d61deac42dbbf4fdea50bf4136564261cce3d2dcdd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5139d54480b7e5008407d61deac42dbbf4fdea50bf4136564261cce3d2dcdd48", kill_on_drop: false }`
[INFO] [stdout] 5139d54480b7e5008407d61deac42dbbf4fdea50bf4136564261cce3d2dcdd48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f4651d020ec9bd8b23e12545db6fbf82eaec16c55e229bbf0c28deb74452956b
[INFO] running `Command { std: "docker" "start" "-a" "f4651d020ec9bd8b23e12545db6fbf82eaec16c55e229bbf0c28deb74452956b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.2.16
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "f4651d020ec9bd8b23e12545db6fbf82eaec16c55e229bbf0c28deb74452956b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4651d020ec9bd8b23e12545db6fbf82eaec16c55e229bbf0c28deb74452956b", kill_on_drop: false }`
[INFO] [stdout] f4651d020ec9bd8b23e12545db6fbf82eaec16c55e229bbf0c28deb74452956b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b277ff4293b365580b9de576aa021d1aa2654720c32ac7fc89b78e2abc557786
[INFO] running `Command { std: "docker" "start" "-a" "b277ff4293b365580b9de576aa021d1aa2654720c32ac7fc89b78e2abc557786", 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)]` 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)]` 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" "b277ff4293b365580b9de576aa021d1aa2654720c32ac7fc89b78e2abc557786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b277ff4293b365580b9de576aa021d1aa2654720c32ac7fc89b78e2abc557786", kill_on_drop: false }`
[INFO] [stdout] b277ff4293b365580b9de576aa021d1aa2654720c32ac7fc89b78e2abc557786
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a64739b9149ce399924175888658d3c33e7eac25aaf49a70f25f993e7a3aa8ed
[INFO] running `Command { std: "docker" "start" "-a" "a64739b9149ce399924175888658d3c33e7eac25aaf49a70f25f993e7a3aa8ed", 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)]` 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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/qopt-806d315d967ae243)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test optimizer::sort ... ok
[INFO] running `Command { std: "docker" "inspect" "a64739b9149ce399924175888658d3c33e7eac25aaf49a70f25f993e7a3aa8ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64739b9149ce399924175888658d3c33e7eac25aaf49a70f25f993e7a3aa8ed", kill_on_drop: false }`
[INFO] [stdout] a64739b9149ce399924175888658d3c33e7eac25aaf49a70f25f993e7a3aa8ed