[INFO] fetching crate generic-cursors 0.0.3...
[INFO] testing generic-cursors-0.0.3 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate generic-cursors 0.0.3 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate generic-cursors 0.0.3
[INFO] finished tweaking crates.io crate generic-cursors 0.0.3
[INFO] tweaked toml for crates.io crate generic-cursors 0.0.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate generic-cursors 0.0.3 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate generic-cursors 0.0.3 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73020f336612ae84e35ac100d0da738ee3f52825f2cd9153935bb97b555f0fee
[INFO] running `Command { std: "docker" "start" "-a" "73020f336612ae84e35ac100d0da738ee3f52825f2cd9153935bb97b555f0fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73020f336612ae84e35ac100d0da738ee3f52825f2cd9153935bb97b555f0fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73020f336612ae84e35ac100d0da738ee3f52825f2cd9153935bb97b555f0fee", kill_on_drop: false }`
[INFO] [stdout] 73020f336612ae84e35ac100d0da738ee3f52825f2cd9153935bb97b555f0fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 575feb690351c67827dfae3213c1c14f4cdc24ee0cb6374dc71e68ff68007235
[INFO] running `Command { std: "docker" "start" "-a" "575feb690351c67827dfae3213c1c14f4cdc24ee0cb6374dc71e68ff68007235", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-cursors v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "575feb690351c67827dfae3213c1c14f4cdc24ee0cb6374dc71e68ff68007235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575feb690351c67827dfae3213c1c14f4cdc24ee0cb6374dc71e68ff68007235", kill_on_drop: false }`
[INFO] [stdout] 575feb690351c67827dfae3213c1c14f4cdc24ee0cb6374dc71e68ff68007235
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c71d2f6d48af7d45dbcad00d5d46d0417c74da82e79fd4fbdb04443937c5e69
[INFO] running `Command { std: "docker" "start" "-a" "5c71d2f6d48af7d45dbcad00d5d46d0417c74da82e79fd4fbdb04443937c5e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-cursors v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `insert_next` is never used
[INFO] [stdout]   --> examples/cyclic_sync.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T> CyclicDataStructure<T> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn insert_next(&mut self, new_next: Arc<Mutex<Self>>) -> Option<Arc<Mutex<Self>>> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "5c71d2f6d48af7d45dbcad00d5d46d0417c74da82e79fd4fbdb04443937c5e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c71d2f6d48af7d45dbcad00d5d46d0417c74da82e79fd4fbdb04443937c5e69", kill_on_drop: false }`
[INFO] [stdout] 5c71d2f6d48af7d45dbcad00d5d46d0417c74da82e79fd4fbdb04443937c5e69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ea81b0041c65cec75828cbf5ef58f025b68fb5cc9d062c8dc0d58a321313a92c
[INFO] running `Command { std: "docker" "start" "-a" "ea81b0041c65cec75828cbf5ef58f025b68fb5cc9d062c8dc0d58a321313a92c", kill_on_drop: false }`
[INFO] [stderr] warning: method `insert_next` is never used
[INFO] [stderr]   --> examples/cyclic_sync.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl<T> CyclicDataStructure<T> {
[INFO] [stderr]    | ------------------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 15 |     fn insert_next(&mut self, new_next: Arc<Mutex<Self>>) -> Option<Arc<Mutex<Self>>> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `generic-cursors` (example "cyclic_sync") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/generic_cursors-e49d1dd3d1a3a34b)
[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] [stderr]    Doc-tests generic_cursors
[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" "ea81b0041c65cec75828cbf5ef58f025b68fb5cc9d062c8dc0d58a321313a92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea81b0041c65cec75828cbf5ef58f025b68fb5cc9d062c8dc0d58a321313a92c", kill_on_drop: false }`
[INFO] [stdout] ea81b0041c65cec75828cbf5ef58f025b68fb5cc9d062c8dc0d58a321313a92c