[INFO] fetching crate accel-stepper 0.1.0...
[INFO] testing accel-stepper-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate accel-stepper 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate accel-stepper 0.1.0
[INFO] finished tweaking crates.io crate accel-stepper 0.1.0
[INFO] tweaked toml for crates.io crate accel-stepper 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate accel-stepper 0.1.0 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 7 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding libm v0.1.4 (available: v0.2.15)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 970486e8dd975736cc5454b5c9b2dc64582f0dd93d78ab7dea8515bed2f567dd
[INFO] running `Command { std: "docker" "start" "-a" "970486e8dd975736cc5454b5c9b2dc64582f0dd93d78ab7dea8515bed2f567dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "970486e8dd975736cc5454b5c9b2dc64582f0dd93d78ab7dea8515bed2f567dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970486e8dd975736cc5454b5c9b2dc64582f0dd93d78ab7dea8515bed2f567dd", kill_on_drop: false }`
[INFO] [stdout] 970486e8dd975736cc5454b5c9b2dc64582f0dd93d78ab7dea8515bed2f567dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b3e9279fec976e23814bf34752edc3d3c0b5e3acbd748786340deaa531f72491
[INFO] running `Command { std: "docker" "start" "-a" "b3e9279fec976e23814bf34752edc3d3c0b5e3acbd748786340deaa531f72491", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling accel-stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "b3e9279fec976e23814bf34752edc3d3c0b5e3acbd748786340deaa531f72491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e9279fec976e23814bf34752edc3d3c0b5e3acbd748786340deaa531f72491", kill_on_drop: false }`
[INFO] [stdout] b3e9279fec976e23814bf34752edc3d3c0b5e3acbd748786340deaa531f72491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 86d3d16e69cea1fce597b1016a7fa90f2362ba8a3b349a23d9c7ab3588fae51c
[INFO] running `Command { std: "docker" "start" "-a" "86d3d16e69cea1fce597b1016a7fa90f2362ba8a3b349a23d9c7ab3588fae51c", kill_on_drop: false }`
[INFO] [stderr]    Compiling accel-stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NopDevice` is never constructed
[INFO] [stdout]    --> src/driver.rs:349:12
[INFO] [stdout]     |
[INFO] [stdout] 349 |     struct NopDevice;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NopDevice` has derived impls for the traits `Debug`, `Clone`, and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "86d3d16e69cea1fce597b1016a7fa90f2362ba8a3b349a23d9c7ab3588fae51c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d3d16e69cea1fce597b1016a7fa90f2362ba8a3b349a23d9c7ab3588fae51c", kill_on_drop: false }`
[INFO] [stdout] 86d3d16e69cea1fce597b1016a7fa90f2362ba8a3b349a23d9c7ab3588fae51c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fc8c8c56a98a669c9925aecfb8017eaca6706052060f9f6955007cbee7fb1d5a
[INFO] running `Command { std: "docker" "start" "-a" "fc8c8c56a98a669c9925aecfb8017eaca6706052060f9f6955007cbee7fb1d5a", kill_on_drop: false }`
[INFO] [stderr] warning: struct `NopDevice` is never constructed
[INFO] [stderr]    --> src/driver.rs:349:12
[INFO] [stderr]     |
[INFO] [stderr] 349 |     struct NopDevice;
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `NopDevice` has derived impls for the traits `Debug`, `Clone`, and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `accel-stepper` (lib test) generated 1 warning
[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/accel_stepper-322b4b541a360fec)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test driver::tests::dont_step_when_already_at_target ... ok
[INFO] [stdout] test driver::tests::compute_new_speeds_when_already_at_target ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc8c8c56a98a669c9925aecfb8017eaca6706052060f9f6955007cbee7fb1d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8c8c56a98a669c9925aecfb8017eaca6706052060f9f6955007cbee7fb1d5a", kill_on_drop: false }`
[INFO] [stdout] fc8c8c56a98a669c9925aecfb8017eaca6706052060f9f6955007cbee7fb1d5a