[INFO] fetching crate godot-core 0.4.2...
[INFO] checking godot-core-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate godot-core 0.4.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate godot-core 0.4.2
[INFO] finished tweaking crates.io crate godot-core 0.4.2
[INFO] tweaked toml for crates.io crate godot-core 0.4.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate godot-core 0.4.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate godot-core 0.4.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90a920db0a77037226df62c9063ccb84e2358f44fcfe6e396fc0294abe61a2e1
[INFO] running `Command { std: "docker" "start" "-a" "90a920db0a77037226df62c9063ccb84e2358f44fcfe6e396fc0294abe61a2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90a920db0a77037226df62c9063ccb84e2358f44fcfe6e396fc0294abe61a2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a920db0a77037226df62c9063ccb84e2358f44fcfe6e396fc0294abe61a2e1", kill_on_drop: false }`
[INFO] [stdout] 90a920db0a77037226df62c9063ccb84e2358f44fcfe6e396fc0294abe61a2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f212f9f24150952190f917bfabbbac06fe76c226dfa2cbe6d8f9dd5afaa36e0
[INFO] running `Command { std: "docker" "start" "-a" "6f212f9f24150952190f917bfabbbac06fe76c226dfa2cbe6d8f9dd5afaa36e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling godot-bindings v0.4.2
[INFO] [stderr]    Compiling gdextension-api v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling nanoserde-derive v0.2.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking godot-cell v0.4.2
[INFO] [stderr]     Checking glam v0.30.8
[INFO] [stderr]    Compiling nanoserde v0.2.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling godot-codegen v0.4.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling godot-ffi v0.4.2
[INFO] [stderr]    Compiling godot-core v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<gstring::GString, Infallible>
[INFO] [stdout]    --> src/builtin/string/gstring.rs:405:53
[INFO] [stdout]     |
[INFO] [stdout] 405 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 406 | |         Ok(Self::from(s))
[INFO] [stdout] 407 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<gstring::GString, Infallible>
[INFO] [stdout]    --> src/builtin/string/gstring.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         Ok(Self::from(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::node_path::NodePath, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:28:66
[INFO] [stdout]     |
[INFO] [stdout]  28 |               fn from_str(string: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout]  29 | |                 Ok(Self::from(string))
[INFO] [stdout]  30 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/node_path.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 |   impl_rust_string_conv!(NodePath);
[INFO] [stdout]     |   -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::node_path::NodePath, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:29:17
[INFO] [stdout]     |
[INFO] [stdout]  29 |                 Ok(Self::from(string))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/node_path.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 | impl_rust_string_conv!(NodePath);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::string_name::StringName, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:28:66
[INFO] [stdout]     |
[INFO] [stdout]  28 |               fn from_str(string: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout]  29 | |                 Ok(Self::from(string))
[INFO] [stdout]  30 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/string_name.rs:353:1
[INFO] [stdout]     |
[INFO] [stdout] 353 |   impl_rust_string_conv!(StringName);
[INFO] [stdout]     |   ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::string_name::StringName, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:29:17
[INFO] [stdout]     |
[INFO] [stdout]  29 |                 Ok(Self::from(string))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/string_name.rs:353:1
[INFO] [stdout]     |
[INFO] [stdout] 353 | impl_rust_string_conv!(StringName);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `godot-core` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<gstring::GString, Infallible>
[INFO] [stdout]    --> src/builtin/string/gstring.rs:405:53
[INFO] [stdout]     |
[INFO] [stdout] 405 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 406 | |         Ok(Self::from(s))
[INFO] [stdout] 407 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<gstring::GString, Infallible>
[INFO] [stdout]    --> src/builtin/string/gstring.rs:406:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |         Ok(Self::from(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::node_path::NodePath, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:28:66
[INFO] [stdout]     |
[INFO] [stdout]  28 |               fn from_str(string: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout]  29 | |                 Ok(Self::from(string))
[INFO] [stdout]  30 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/node_path.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 |   impl_rust_string_conv!(NodePath);
[INFO] [stdout]     |   -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::node_path::NodePath, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:29:17
[INFO] [stdout]     |
[INFO] [stdout]  29 |                 Ok(Self::from(string))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/node_path.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 | impl_rust_string_conv!(NodePath);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::string_name::StringName, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:28:66
[INFO] [stdout]     |
[INFO] [stdout]  28 |               fn from_str(string: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout]  29 | |                 Ok(Self::from(string))
[INFO] [stdout]  30 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/string_name.rs:353:1
[INFO] [stdout]     |
[INFO] [stdout] 353 |   impl_rust_string_conv!(StringName);
[INFO] [stdout]     |   ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<builtin::string::string_name::StringName, Infallible>
[INFO] [stdout]    --> src/builtin/string/macros.rs:29:17
[INFO] [stdout]     |
[INFO] [stdout]  29 |                 Ok(Self::from(string))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/builtin/string/string_name.rs:353:1
[INFO] [stdout]     |
[INFO] [stdout] 353 | impl_rust_string_conv!(StringName);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_rust_string_conv` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `godot-core` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "6f212f9f24150952190f917bfabbbac06fe76c226dfa2cbe6d8f9dd5afaa36e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f212f9f24150952190f917bfabbbac06fe76c226dfa2cbe6d8f9dd5afaa36e0", kill_on_drop: false }`
[INFO] [stdout] 6f212f9f24150952190f917bfabbbac06fe76c226dfa2cbe6d8f9dd5afaa36e0