[INFO] fetching crate fuzzy-tree 0.1.2...
[INFO] testing fuzzy-tree-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate fuzzy-tree 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] finished tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] tweaked toml for crates.io crate fuzzy-tree 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fuzzy-tree 0.1.2 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] crate crates.io crate fuzzy-tree 0.1.2 already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace-sys v0.1.36
[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] c61b6d4666103f219e8e8d2783050e992d9eb304881a6f88cfb8b5ab14d991b6
[INFO] running `Command { std: "docker" "start" "-a" "c61b6d4666103f219e8e8d2783050e992d9eb304881a6f88cfb8b5ab14d991b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c61b6d4666103f219e8e8d2783050e992d9eb304881a6f88cfb8b5ab14d991b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61b6d4666103f219e8e8d2783050e992d9eb304881a6f88cfb8b5ab14d991b6", kill_on_drop: false }`
[INFO] [stdout] c61b6d4666103f219e8e8d2783050e992d9eb304881a6f88cfb8b5ab14d991b6
[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] 354fdb55ef1c18d082fb1b54c09895fd990bee6e5aff474c64b80ebed6751fc1
[INFO] running `Command { std: "docker" "start" "-a" "354fdb55ef1c18d082fb1b54c09895fd990bee6e5aff474c64b80ebed6751fc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling fuzzy-tree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `add_parent` and `n_children` are never used
[INFO] [stdout]   --> src/path.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub trait PathBehaviour {
[INFO] [stdout]    |           ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn add_parent(&self, parent: &RcPath);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     fn n_children(&self) -> usize;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^-------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this raw pointer has type `*mut path::Path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&Vec<String>`
[INFO] [stdout]    --> src/path.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(*self.as_ptr()).components[self.len() - 1] }
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 126 |         unsafe { &(&(*self.as_ptr()).components)[self.len() - 1] }
[INFO] [stdout]     |                   ++                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fuzzy-tree` (bin "fztree") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "354fdb55ef1c18d082fb1b54c09895fd990bee6e5aff474c64b80ebed6751fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354fdb55ef1c18d082fb1b54c09895fd990bee6e5aff474c64b80ebed6751fc1", kill_on_drop: false }`
[INFO] [stdout] 354fdb55ef1c18d082fb1b54c09895fd990bee6e5aff474c64b80ebed6751fc1