[INFO] fetching crate tcb 0.1.202... [INFO] checking tcb-0.1.202 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate tcb 0.1.202 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate tcb 0.1.202 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tcb 0.1.202 [INFO] finished tweaking crates.io crate tcb 0.1.202 [INFO] tweaked toml for crates.io crate tcb 0.1.202 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate tcb 0.1.202 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.110 [INFO] [stderr] Downloaded proc-macro2 v1.0.12 [INFO] [stderr] Downloaded quote v1.0.4 [INFO] [stderr] Downloaded serde_derive v1.0.110 [INFO] [stderr] Downloaded toml v0.5.6 [INFO] [stderr] Downloaded syn v1.0.19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2e111e2fd94fe3e7685250956dece86ef346d8710e8c967fa5f74f5f13fbb717 [INFO] running `Command { std: "docker" "start" "-a" "2e111e2fd94fe3e7685250956dece86ef346d8710e8c967fa5f74f5f13fbb717", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e111e2fd94fe3e7685250956dece86ef346d8710e8c967fa5f74f5f13fbb717", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e111e2fd94fe3e7685250956dece86ef346d8710e8c967fa5f74f5f13fbb717", kill_on_drop: false }` [INFO] [stdout] 2e111e2fd94fe3e7685250956dece86ef346d8710e8c967fa5f74f5f13fbb717 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a0bb5f40186fe8880727513723b73a602c40c114d3f82864e857d220f56b51d [INFO] running `Command { std: "docker" "start" "-a" "7a0bb5f40186fe8880727513723b73a602c40c114d3f82864e857d220f56b51d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.19 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking bit-vec v0.6.2 [INFO] [stderr] Checking smallvec v1.4.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking toml v0.5.6 [INFO] [stderr] Checking bincode v1.2.1 [INFO] [stderr] Checking tcb v0.1.202 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/causality_checker/causality_checker.rs:577:13 [INFO] [stdout] | [INFO] [stdout] 577 | drop(pred_dot); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut causality_checker_structs::CheckNode` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 577 - drop(pred_dot); [INFO] [stdout] 577 + let _ = pred_dot; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:200:21 [INFO] [stdout] | [INFO] [stdout] 200 | drop(pred_temp_node); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 200 - drop(pred_temp_node); [INFO] [stdout] 200 + let _ = pred_temp_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:274:9 [INFO] [stdout] | [INFO] [stdout] 274 | drop(delivered_node); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 274 - drop(delivered_node); [INFO] [stdout] 274 + let _ = delivered_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:349:9 [INFO] [stdout] | [INFO] [stdout] 349 | drop(stable_node); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 349 - drop(stable_node); [INFO] [stdout] 349 + let _ = stable_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/vv/middleware/version_vector.rs:285:24 [INFO] [stdout] | [INFO] [stdout] 285 | panic!(error_message); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 285 | panic!("{}", error_message); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/causality_checker/causality_checker.rs:577:13 [INFO] [stdout] | [INFO] [stdout] 577 | drop(pred_dot); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut causality_checker_structs::CheckNode` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 577 - drop(pred_dot); [INFO] [stdout] 577 + let _ = pred_dot; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:200:21 [INFO] [stdout] | [INFO] [stdout] 200 | drop(pred_temp_node); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 200 - drop(pred_temp_node); [INFO] [stdout] 200 + let _ = pred_temp_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:274:9 [INFO] [stdout] | [INFO] [stdout] 274 | drop(delivered_node); [INFO] [stdout] | ^^^^^--------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 274 - drop(delivered_node); [INFO] [stdout] 274 + let _ = delivered_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/graph/middleware/graph.rs:349:9 [INFO] [stdout] | [INFO] [stdout] 349 | drop(stable_node); [INFO] [stdout] | ^^^^^-----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut node::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 349 - drop(stable_node); [INFO] [stdout] 349 + let _ = stable_node; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/vv/middleware/version_vector.rs:285:24 [INFO] [stdout] | [INFO] [stdout] 285 | panic!(error_message); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 285 | panic!("{}", error_message); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sent_message_context` [INFO] [stdout] --> examples/graph_client.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let sent_message_context = graph.send(serialized_message); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sent_message_context` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `non_blocking_delivery` [INFO] [stdout] --> examples/graph_client.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let non_blocking_delivery = graph.try_recv()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_non_blocking_delivery` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timeout_delivery` [INFO] [stdout] --> examples/graph_client.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let timeout_delivery = graph.recv_timeout(Duration::from_secs(1))?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout_delivery` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `blocking_delivery` [INFO] [stdout] --> examples/vv_client.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | let blocking_delivery = vv.recv()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocking_delivery` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `non_blocking_delivery` [INFO] [stdout] --> examples/vv_client.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let non_blocking_delivery = vv.try_recv()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_non_blocking_delivery` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timeout_delivery` [INFO] [stdout] --> examples/vv_client.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let timeout_delivery = vv.recv_timeout(Duration::from_secs(1))?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout_delivery` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.92s [INFO] running `Command { std: "docker" "inspect" "7a0bb5f40186fe8880727513723b73a602c40c114d3f82864e857d220f56b51d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a0bb5f40186fe8880727513723b73a602c40c114d3f82864e857d220f56b51d", kill_on_drop: false }` [INFO] [stdout] 7a0bb5f40186fe8880727513723b73a602c40c114d3f82864e857d220f56b51d