[INFO] fetching crate nsf-imgui 0.1.3...
[INFO] testing nsf-imgui-0.1.3 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate nsf-imgui 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nsf-imgui 0.1.3
[INFO] finished tweaking crates.io crate nsf-imgui 0.1.3
[INFO] tweaked toml for crates.io crate nsf-imgui 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nsf-imgui 0.1.3 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 7 packages to latest compatible versions
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 37491b2f6472abb05d2e0ce03e41c8a9722dce0aeeb382e8c1f9f9fd68783ba7
[INFO] running `Command { std: "docker" "start" "-a" "37491b2f6472abb05d2e0ce03e41c8a9722dce0aeeb382e8c1f9f9fd68783ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37491b2f6472abb05d2e0ce03e41c8a9722dce0aeeb382e8c1f9f9fd68783ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37491b2f6472abb05d2e0ce03e41c8a9722dce0aeeb382e8c1f9f9fd68783ba7", kill_on_drop: false }`
[INFO] [stdout] 37491b2f6472abb05d2e0ce03e41c8a9722dce0aeeb382e8c1f9f9fd68783ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b659ce59b0a77e87ee590f2e20dbd649f6a5214bcbe0d35316d020f2bde0599e
[INFO] running `Command { std: "docker" "start" "-a" "b659ce59b0a77e87ee590f2e20dbd649f6a5214bcbe0d35316d020f2bde0599e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling nsf-imgui-raw v0.1.0
[INFO] [stderr]    Compiling nsf-imgui v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `imgui_owner` is never read
[INFO] [stdout]   --> imgui.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct ImGui {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 30 |     imgui_owner: Rc<ImGuiOwner>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImGui` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> imgui.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 while (*s).len() < (*data).buf_size as usize {
[INFO] [stdout]    |                       ^^-^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this raw pointer has type `*mut String`
[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: `&String`
[INFO] [stdout]   --> imgui.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 while (*s).len() < (*data).buf_size as usize {
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/string.rs:1854:5
[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] 51 |                 while (&(*s)).len() < (*data).buf_size as usize {
[INFO] [stdout]    |                       ++    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> imgui.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 if (*s).len() > (*data).buf_size as usize {
[INFO] [stdout]    |                    ^^-^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this raw pointer has type `*mut String`
[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: `&String`
[INFO] [stdout]   --> imgui.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 if (*s).len() > (*data).buf_size as usize {
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/string.rs:1854:5
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 if (&(*s)).len() > (*data).buf_size as usize {
[INFO] [stdout]    |                    ++    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nsf-imgui` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b659ce59b0a77e87ee590f2e20dbd649f6a5214bcbe0d35316d020f2bde0599e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b659ce59b0a77e87ee590f2e20dbd649f6a5214bcbe0d35316d020f2bde0599e", kill_on_drop: false }`
[INFO] [stdout] b659ce59b0a77e87ee590f2e20dbd649f6a5214bcbe0d35316d020f2bde0599e