[INFO] fetching crate cxx-demo 0.0.6...
[INFO] testing cxx-demo-0.0.6 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate cxx-demo 0.0.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cxx-demo 0.0.6 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-demo 0.0.6
[INFO] finished tweaking crates.io crate cxx-demo 0.0.6
[INFO] tweaked toml for crates.io crate cxx-demo 0.0.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39a8330fa8d01f147d85c30f22bd01105298a4a3762f7a73ec34718a59714db4
[INFO] running `Command { std: "docker" "start" "-a" "39a8330fa8d01f147d85c30f22bd01105298a4a3762f7a73ec34718a59714db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39a8330fa8d01f147d85c30f22bd01105298a4a3762f7a73ec34718a59714db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39a8330fa8d01f147d85c30f22bd01105298a4a3762f7a73ec34718a59714db4", kill_on_drop: false }`
[INFO] [stdout] 39a8330fa8d01f147d85c30f22bd01105298a4a3762f7a73ec34718a59714db4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d341f705c57c2dbf4ddff69152688bdf60acac01dfa22355a5efac3fd1413729
[INFO] running `Command { std: "docker" "start" "-a" "d341f705c57c2dbf4ddff69152688bdf60acac01dfa22355a5efac3fd1413729", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.50
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling link-cplusplus v1.0.5
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling cxx v1.0.50
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cxx-build v1.0.50
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.50
[INFO] [stderr]    Compiling cxx-demo v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `new_blobstore_client`
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         fn new_blobstore_client() -> UniquePtr<BlobstoreClient>;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `put`
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn put(&self, parts: &mut MultiBuf) -> u64;
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tag`
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn tag(&self, blobid: u64, tag: &str);
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `metadata`
[INFO] [stdout]   --> src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn metadata(&self, blobid: u64) -> BlobMetadata;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/lib.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.61s
[INFO] running `Command { std: "docker" "inspect" "d341f705c57c2dbf4ddff69152688bdf60acac01dfa22355a5efac3fd1413729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d341f705c57c2dbf4ddff69152688bdf60acac01dfa22355a5efac3fd1413729", kill_on_drop: false }`
[INFO] [stdout] d341f705c57c2dbf4ddff69152688bdf60acac01dfa22355a5efac3fd1413729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22124c6debfda24abe265e63b6b16d14d21cd1efd0d3964dc45a8803cea820d3
[INFO] running `Command { std: "docker" "start" "-a" "22124c6debfda24abe265e63b6b16d14d21cd1efd0d3964dc45a8803cea820d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: function is never used: `new_blobstore_client`
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         fn new_blobstore_client() -> UniquePtr<BlobstoreClient>;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `put`
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn put(&self, parts: &mut MultiBuf) -> u64;
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tag`
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |         fn tag(&self, blobid: u64, tag: &str);
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `metadata`
[INFO] [stdout]   --> src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn metadata(&self, blobid: u64) -> BlobMetadata;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/lib.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cxx-demo v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "22124c6debfda24abe265e63b6b16d14d21cd1efd0d3964dc45a8803cea820d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22124c6debfda24abe265e63b6b16d14d21cd1efd0d3964dc45a8803cea820d3", kill_on_drop: false }`
[INFO] [stdout] 22124c6debfda24abe265e63b6b16d14d21cd1efd0d3964dc45a8803cea820d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 178498ff1fe2bc8e5c759054450298e3d7a5127eba067d79ede75b6aa19c3c52
[INFO] running `Command { std: "docker" "start" "-a" "178498ff1fe2bc8e5c759054450298e3d7a5127eba067d79ede75b6aa19c3c52", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `new_blobstore_client`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lib.rs:22:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 22 |         fn new_blobstore_client() -> UniquePtr<BlobstoreClient>;
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `put`
[INFO] [stderr]   --> src/lib.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |         fn put(&self, parts: &mut MultiBuf) -> u64;
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tag`
[INFO] [stderr]   --> src/lib.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |         fn tag(&self, blobid: u64, tag: &str);
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `metadata`
[INFO] [stderr]   --> src/lib.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |         fn metadata(&self, blobid: u64) -> BlobMetadata;
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/lib.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cxx-demo` (lib) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cxx_demo-a500bc6c85ee296a)
[INFO] [stderr]    Doc-tests cxx-demo
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "178498ff1fe2bc8e5c759054450298e3d7a5127eba067d79ede75b6aa19c3c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178498ff1fe2bc8e5c759054450298e3d7a5127eba067d79ede75b6aa19c3c52", kill_on_drop: false }`
[INFO] [stdout] 178498ff1fe2bc8e5c759054450298e3d7a5127eba067d79ede75b6aa19c3c52