[INFO] fetching crate oneshot 0.1.2... [INFO] checking oneshot-0.1.2 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate oneshot 0.1.2 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate oneshot 0.1.2 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate oneshot 0.1.2 [INFO] finished tweaking crates.io crate oneshot 0.1.2 [INFO] tweaked toml for crates.io crate oneshot 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate crates.io crate oneshot 0.1.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn v1.0.20 [INFO] [stderr] Downloaded plotters v0.2.14 [INFO] [stderr] Downloaded generator v0.6.20 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 562d49b787fab586b5686e97f779e8b4c2f590807b20f6083e09f00681c106fb [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" "562d49b787fab586b5686e97f779e8b4c2f590807b20f6083e09f00681c106fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "562d49b787fab586b5686e97f779e8b4c2f590807b20f6083e09f00681c106fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "562d49b787fab586b5686e97f779e8b4c2f590807b20f6083e09f00681c106fb", kill_on_drop: false }` [INFO] [stdout] 562d49b787fab586b5686e97f779e8b4c2f590807b20f6083e09f00681c106fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 289093b3c851ce34acff673c219a95f2f5af31bcc2bb2a6c16c4525fd034269c [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" "289093b3c851ce34acff673c219a95f2f5af31bcc2bb2a6c16c4525fd034269c", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.20 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking pin-project-lite v0.1.5 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking oorandom v11.1.1 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking once_cell v1.3.1 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking oneshot v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Checking byteorder v1.3.4 [INFO] [stderr] Checking crossbeam-utils v0.7.2 [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:332:37 [INFO] [stdout] | [INFO] [stdout] 332 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:414:37 [INFO] [stdout] | [INFO] [stdout] 414 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:512:37 [INFO] [stdout] | [INFO] [stdout] 512 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:586:37 [INFO] [stdout] | [INFO] [stdout] 586 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:382:33 [INFO] [stdout] | [INFO] [stdout] 382 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 382 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 382 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:455:33 [INFO] [stdout] | [INFO] [stdout] 455 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 455 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 455 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:565:33 [INFO] [stdout] | [INFO] [stdout] 565 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 565 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 565 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking crossbeam-channel v0.4.2 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking kv-log-macro v1.0.5 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking criterion-plot v0.4.2 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking plotters v0.2.14 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.0.4 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking tokio v0.2.20 [INFO] [stderr] Checking criterion v0.3.2 [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:332:37 [INFO] [stdout] | [INFO] [stdout] 332 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:414:37 [INFO] [stdout] | [INFO] [stdout] 414 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:512:37 [INFO] [stdout] | [INFO] [stdout] 512 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:586:37 [INFO] [stdout] | [INFO] [stdout] 586 | match channel.state.compare_and_swap(EMPTY, RECEIVING, SeqCst) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:382:33 [INFO] [stdout] | [INFO] [stdout] 382 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 382 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 382 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:455:33 [INFO] [stdout] | [INFO] [stdout] 455 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 455 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 455 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:565:33 [INFO] [stdout] | [INFO] [stdout] 565 | RECEIVING => panic!(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [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] 565 | RECEIVING => panic!("{}", RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 565 | RECEIVING => std::panic::panic_any(RECEIVER_USED_SYNC_AND_ASYNC_ERROR), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 42.25s [INFO] running `Command { std: "docker" "inspect" "289093b3c851ce34acff673c219a95f2f5af31bcc2bb2a6c16c4525fd034269c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "289093b3c851ce34acff673c219a95f2f5af31bcc2bb2a6c16c4525fd034269c", kill_on_drop: false }` [INFO] [stdout] 289093b3c851ce34acff673c219a95f2f5af31bcc2bb2a6c16c4525fd034269c