[INFO] fetching crate fixed-slice-vec 0.10.0...
[INFO] testing fixed-slice-vec-0.10.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate fixed-slice-vec 0.10.0 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate fixed-slice-vec 0.10.0
[INFO] finished tweaking crates.io crate fixed-slice-vec 0.10.0
[INFO] tweaked toml for crates.io crate fixed-slice-vec 0.10.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fixed-slice-vec 0.10.0 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 64 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.5.2 (available: v0.7.6)
[INFO] [stderr]       Adding proptest v0.9.6 (available: v1.7.0)
[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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] beeb43ba8458cc5d748a724d8c79bcdf73c0102d60f88ac704714f0ac67abdb4
[INFO] running `Command { std: "docker" "start" "-a" "beeb43ba8458cc5d748a724d8c79bcdf73c0102d60f88ac704714f0ac67abdb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beeb43ba8458cc5d748a724d8c79bcdf73c0102d60f88ac704714f0ac67abdb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beeb43ba8458cc5d748a724d8c79bcdf73c0102d60f88ac704714f0ac67abdb4", kill_on_drop: false }`
[INFO] [stdout] beeb43ba8458cc5d748a724d8c79bcdf73c0102d60f88ac704714f0ac67abdb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 91f0b3ed90e6b85c7e5f4c664a2e2244950170be4f305a6ca28c5341aca1892a
[INFO] running `Command { std: "docker" "start" "-a" "91f0b3ed90e6b85c7e5f4c664a2e2244950170be4f305a6ca28c5341aca1892a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed-slice-vec v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]   --> src/single.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |     debug_assert!(!destination.as_ptr().is_null());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(useless_ptr_null_checks)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]   --> src/single.rs:87:20
[INFO] [stdout]    |
[INFO] [stdout] 87 |     debug_assert!(!destination.as_ptr().is_null());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/single.rs:124:20
[INFO] [stdout]     |
[INFO] [stdout] 124 |     debug_assert!(!destination.as_ptr().is_null());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/single.rs:155:20
[INFO] [stdout]     |
[INFO] [stdout] 155 |     debug_assert!(!destination.as_ptr().is_null());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fixed-slice-vec` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "91f0b3ed90e6b85c7e5f4c664a2e2244950170be4f305a6ca28c5341aca1892a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f0b3ed90e6b85c7e5f4c664a2e2244950170be4f305a6ca28c5341aca1892a", kill_on_drop: false }`
[INFO] [stdout] 91f0b3ed90e6b85c7e5f4c664a2e2244950170be4f305a6ca28c5341aca1892a