[INFO] fetching crate turbulence 0.3.0... [INFO] checking turbulence-0.3.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744 [INFO] extracting crate turbulence 0.3.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate turbulence 0.3.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate turbulence 0.3.0 [INFO] finished tweaking crates.io crate turbulence 0.3.0 [INFO] tweaked toml for crates.io crate turbulence 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d60935238462855c0176720180bb897522d03e2f67a298c04a70285ced7fbaac [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d60935238462855c0176720180bb897522d03e2f67a298c04a70285ced7fbaac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d60935238462855c0176720180bb897522d03e2f67a298c04a70285ced7fbaac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d60935238462855c0176720180bb897522d03e2f67a298c04a70285ced7fbaac", kill_on_drop: false }` [INFO] [stdout] d60935238462855c0176720180bb897522d03e2f67a298c04a70285ced7fbaac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fce2a6d036362fbff346c439cdb97d635f134a1e1ab4a75d8761d3268191ec66 [INFO] running `Command { std: "docker" "start" "-a" "fce2a6d036362fbff346c439cdb97d635f134a1e1ab4a75d8761d3268191ec66", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking futures-task v0.3.14 [INFO] [stderr] Compiling snap v1.0.4 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking futures-channel v0.3.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling futures-macro v0.3.14 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking futures-util v0.3.14 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking futures-executor v0.3.14 [INFO] [stderr] Checking futures v0.3.14 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking turbulence v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:477:29 [INFO] [stdout] | [INFO] [stdout] 477 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:523:29 [INFO] [stdout] | [INFO] [stdout] 523 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:569:29 [INFO] [stdout] | [INFO] [stdout] 569 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:477:29 [INFO] [stdout] | [INFO] [stdout] 477 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:523:29 [INFO] [stdout] | [INFO] [stdout] 523 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:569:29 [INFO] [stdout] | [INFO] [stdout] 569 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/message_channels.rs:266:61 [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/message_channels.rs:352:61 [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/message_channels.rs:266:61 [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/message_channels.rs:352:61 [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => std::panic::panic_any(e), [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 38.97s [INFO] running `Command { std: "docker" "inspect" "fce2a6d036362fbff346c439cdb97d635f134a1e1ab4a75d8761d3268191ec66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fce2a6d036362fbff346c439cdb97d635f134a1e1ab4a75d8761d3268191ec66", kill_on_drop: false }` [INFO] [stdout] fce2a6d036362fbff346c439cdb97d635f134a1e1ab4a75d8761d3268191ec66