[INFO] fetching crate wrenlet 0.1.1...
[INFO] checking wrenlet-0.1.1 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate wrenlet 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wrenlet 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wrenlet 0.1.1
[INFO] tweaked toml for crates.io crate wrenlet 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wrenlet 0.1.1 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wrenlet 0.1.1 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace84bb5af0087bdf3fcdc8dab73d503287727ddf6b93285f05f1e1978c52844
[INFO] running `Command { std: "docker" "start" "-a" "ace84bb5af0087bdf3fcdc8dab73d503287727ddf6b93285f05f1e1978c52844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace84bb5af0087bdf3fcdc8dab73d503287727ddf6b93285f05f1e1978c52844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace84bb5af0087bdf3fcdc8dab73d503287727ddf6b93285f05f1e1978c52844", kill_on_drop: false }`
[INFO] [stdout] ace84bb5af0087bdf3fcdc8dab73d503287727ddf6b93285f05f1e1978c52844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d250ffa3d0553aee2736c54520b24c795bb298d1cd416013606540bf9ada63e3
[INFO] running `Command { std: "docker" "start" "-a" "d250ffa3d0553aee2736c54520b24c795bb298d1cd416013606540bf9ada63e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling wrenlet-sys v0.1.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling variadics_please v1.1.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling error_set_impl v0.9.0
[INFO] [stderr]     Checking error_set v0.9.0
[INFO] [stderr]     Checking wrenlet v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `ForeignVTable` is never constructed
[INFO] [stdout]  --> src/foreign.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct ForeignVTable {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/foreign.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ForeignVTable {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 11 |     const fn new<T>() -> &'static Self
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FakeForeign` is never constructed
[INFO] [stdout]   --> src/foreign.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub(crate) struct FakeForeign;
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/handle.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct ValueHandle<U>(pub(crate) RcHandle<U>);
[INFO] [stdout]    |            -----------    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/handle.rs:47:26
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct CallHandle<U>(pub(crate) RcHandle<U>);
[INFO] [stdout]    |            ----------    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wrenlet` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `ForeignVTable` is never constructed
[INFO] [stdout]  --> src/foreign.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct ForeignVTable {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/foreign.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ForeignVTable {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 11 |     const fn new<T>() -> &'static Self
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FakeForeign` is never constructed
[INFO] [stdout]   --> src/foreign.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub(crate) struct FakeForeign;
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/handle.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct ValueHandle<U>(pub(crate) RcHandle<U>);
[INFO] [stdout]    |            -----------    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/handle.rs:47:26
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct CallHandle<U>(pub(crate) RcHandle<U>);
[INFO] [stdout]    |            ----------    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wrenlet` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d250ffa3d0553aee2736c54520b24c795bb298d1cd416013606540bf9ada63e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d250ffa3d0553aee2736c54520b24c795bb298d1cd416013606540bf9ada63e3", kill_on_drop: false }`
[INFO] [stdout] d250ffa3d0553aee2736c54520b24c795bb298d1cd416013606540bf9ada63e3
