[INFO] cloning repository https://github.com/playXE/sierra-scheme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/sierra-scheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10ec42fa08fc4a9b35765e0d45e5ca70e6536ace
[INFO] checking playXE/sierra-scheme against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/playXE/sierra-scheme
[INFO] finished tweaking git repo https://github.com/playXE/sierra-scheme
[INFO] tweaked toml for git repo https://github.com/playXE/sierra-scheme written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/playXE/sierra-scheme 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 git repo https://github.com/playXE/sierra-scheme 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 248a237d4e920538957b07887370613be8cc423df067ad13f62c8026ddd88166
[INFO] running `Command { std: "docker" "start" "-a" "248a237d4e920538957b07887370613be8cc423df067ad13f62c8026ddd88166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "248a237d4e920538957b07887370613be8cc423df067ad13f62c8026ddd88166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248a237d4e920538957b07887370613be8cc423df067ad13f62c8026ddd88166", kill_on_drop: false }`
[INFO] [stdout] 248a237d4e920538957b07887370613be8cc423df067ad13f62c8026ddd88166
[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" "-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] 9a12b15111c3a1d1fe920e9ab88c9496c983a04bf7eab21504bb147ff0de817d
[INFO] running `Command { std: "docker" "start" "-a" "9a12b15111c3a1d1fe920e9ab88c9496c983a04bf7eab21504bb147ff0de817d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.75.0
[INFO] [stderr]    Compiling cranelift-entity v0.75.0
[INFO] [stderr]    Compiling target-lexicon v0.12.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.75.0
[INFO] [stderr]     Checking cranelift-bforest v0.75.0
[INFO] [stderr]    Compiling sierra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tagged-box v0.1.1
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.21
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling cranelift-codegen v0.75.0
[INFO] [stderr]     Checking cranelift-frontend v0.75.0
[INFO] [stderr]     Checking cranelift-native v0.75.0
[INFO] [stderr]     Checking cranelift-module v0.75.0
[INFO] [stderr]     Checking cranelift v0.75.0
[INFO] [stderr]     Checking cranelift-jit v0.75.0
[INFO] [stdout] error: struct `State` is never constructed
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct State {
[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] error: struct `Handle` is never constructed
[INFO] [stdout]   --> src/gc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Handle<T: GcCell> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gc.rs:446:32
[INFO] [stdout]     |
[INFO] [stdout] 446 |     pub unsafe fn get_internal(&self) -> &RootedInternal<T> {
[INFO] [stdout]     |                                ^^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                |         ||
[INFO] [stdout]     |                                |         |the same lifetime is hidden here
[INFO] [stdout]     |                                |         the same lifetime is elided here
[INFO] [stdout]     |                                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 446 |     pub unsafe fn get_internal(&self) -> &RootedInternal<'_, T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gc.rs:449:36
[INFO] [stdout]     |
[INFO] [stdout] 449 |     pub unsafe fn get_internal_mut(&mut self) -> &mut RootedInternal<T> {
[INFO] [stdout]     |                                    ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                    |             |    |
[INFO] [stdout]     |                                    |             |    the same lifetime is hidden here
[INFO] [stdout]     |                                    |             the same lifetime is elided here
[INFO] [stdout]     |                                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 449 |     pub unsafe fn get_internal_mut(&mut self) -> &mut RootedInternal<'_, T> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sierra` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `State` is never constructed
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct State {
[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] error: struct `Handle` is never constructed
[INFO] [stdout]   --> src/gc.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Handle<T: GcCell> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gc.rs:446:32
[INFO] [stdout]     |
[INFO] [stdout] 446 |     pub unsafe fn get_internal(&self) -> &RootedInternal<T> {
[INFO] [stdout]     |                                ^^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                |         ||
[INFO] [stdout]     |                                |         |the same lifetime is hidden here
[INFO] [stdout]     |                                |         the same lifetime is elided here
[INFO] [stdout]     |                                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 446 |     pub unsafe fn get_internal(&self) -> &RootedInternal<'_, T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gc.rs:449:36
[INFO] [stdout]     |
[INFO] [stdout] 449 |     pub unsafe fn get_internal_mut(&mut self) -> &mut RootedInternal<T> {
[INFO] [stdout]     |                                    ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                    |             |    |
[INFO] [stdout]     |                                    |             |    the same lifetime is hidden here
[INFO] [stdout]     |                                    |             the same lifetime is elided here
[INFO] [stdout]     |                                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 449 |     pub unsafe fn get_internal_mut(&mut self) -> &mut RootedInternal<'_, T> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sierra` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9a12b15111c3a1d1fe920e9ab88c9496c983a04bf7eab21504bb147ff0de817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a12b15111c3a1d1fe920e9ab88c9496c983a04bf7eab21504bb147ff0de817d", kill_on_drop: false }`
[INFO] [stdout] 9a12b15111c3a1d1fe920e9ab88c9496c983a04bf7eab21504bb147ff0de817d
