[INFO] fetching crate crossbeam-channel 0.5.8... [INFO] checking crossbeam-channel-0.5.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate crossbeam-channel 0.5.8 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate crossbeam-channel 0.5.8 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crossbeam-channel 0.5.8 [INFO] finished tweaking crates.io crate crossbeam-channel 0.5.8 [INFO] tweaked toml for crates.io crate crossbeam-channel 0.5.8 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate crossbeam-channel 0.5.8 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getrandom v0.2.8 [INFO] [stderr] Downloaded signal-hook v0.3.15 [INFO] [stderr] Downloaded libc v0.2.141 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 463a6781bb89cc249dc41e9de0d7248edd167109575c85cdfec427c1230a4825 [INFO] running `Command { std: "docker" "start" "-a" "463a6781bb89cc249dc41e9de0d7248edd167109575c85cdfec427c1230a4825", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "463a6781bb89cc249dc41e9de0d7248edd167109575c85cdfec427c1230a4825", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "463a6781bb89cc249dc41e9de0d7248edd167109575c85cdfec427c1230a4825", kill_on_drop: false }` [INFO] [stdout] 463a6781bb89cc249dc41e9de0d7248edd167109575c85cdfec427c1230a4825 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b25879df266360d62b1eadf47197cb96525774bc338d399517cf3c25d8eb4d6 [INFO] running `Command { std: "docker" "start" "-a" "2b25879df266360d62b1eadf47197cb96525774bc338d399517cf3c25d8eb4d6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.141 [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Compiling signal-hook v0.3.15 [INFO] [stderr] Checking crossbeam-channel v0.5.8 (/opt/rustwide/workdir) [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stdout] warning: the item `Duration` is imported redundantly [INFO] [stdout] --> tests/mpsc.rs:200:21 [INFO] [stdout] | [INFO] [stdout] 196 | use super::*; [INFO] [stdout] | -------- the item `Duration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 200 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Duration` is imported redundantly [INFO] [stdout] --> tests/mpsc.rs:976:9 [INFO] [stdout] | [INFO] [stdout] 972 | use super::*; [INFO] [stdout] | -------- the item `Duration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 976 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1215:27 [INFO] [stdout] | [INFO] [stdout] 1215 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1218:27 [INFO] [stdout] | [INFO] [stdout] 1218 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1222:27 [INFO] [stdout] | [INFO] [stdout] 1222 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1227:30 [INFO] [stdout] | [INFO] [stdout] 1227 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1230:30 [INFO] [stdout] | [INFO] [stdout] 1230 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1234:30 [INFO] [stdout] | [INFO] [stdout] 1234 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1239:30 [INFO] [stdout] | [INFO] [stdout] 1239 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1240:27 [INFO] [stdout] | [INFO] [stdout] 1240 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.23s [INFO] running `Command { std: "docker" "inspect" "2b25879df266360d62b1eadf47197cb96525774bc338d399517cf3c25d8eb4d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b25879df266360d62b1eadf47197cb96525774bc338d399517cf3c25d8eb4d6", kill_on_drop: false }` [INFO] [stdout] 2b25879df266360d62b1eadf47197cb96525774bc338d399517cf3c25d8eb4d6 [INFO] checking crossbeam-channel-0.5.8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate crossbeam-channel 0.5.8 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate crossbeam-channel 0.5.8 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crossbeam-channel 0.5.8 [INFO] finished tweaking crates.io crate crossbeam-channel 0.5.8 [INFO] tweaked toml for crates.io crate crossbeam-channel 0.5.8 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate crossbeam-channel 0.5.8 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 243e68e1ca3b739de984f687eee897eb434ab72f404669bbb2df17ef9cbe10e6 [INFO] running `Command { std: "docker" "start" "-a" "243e68e1ca3b739de984f687eee897eb434ab72f404669bbb2df17ef9cbe10e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "243e68e1ca3b739de984f687eee897eb434ab72f404669bbb2df17ef9cbe10e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "243e68e1ca3b739de984f687eee897eb434ab72f404669bbb2df17ef9cbe10e6", kill_on_drop: false }` [INFO] [stdout] 243e68e1ca3b739de984f687eee897eb434ab72f404669bbb2df17ef9cbe10e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ed095f03907cc2b44f1618be3d023a56edceaf8d8e6cb4392e88ec4f12b7e75c [INFO] running `Command { std: "docker" "start" "-a" "ed095f03907cc2b44f1618be3d023a56edceaf8d8e6cb4392e88ec4f12b7e75c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.141 [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Compiling signal-hook v0.3.15 [INFO] [stderr] Checking crossbeam-channel v0.5.8 (/opt/rustwide/workdir) [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stdout] warning: the item `Duration` is imported redundantly [INFO] [stdout] --> tests/mpsc.rs:200:21 [INFO] [stdout] | [INFO] [stdout] 196 | use super::*; [INFO] [stdout] | -------- the item `Duration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 200 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Duration` is imported redundantly [INFO] [stdout] --> tests/mpsc.rs:976:9 [INFO] [stdout] | [INFO] [stdout] 972 | use super::*; [INFO] [stdout] | -------- the item `Duration` is already imported here [INFO] [stdout] ... [INFO] [stdout] 976 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1215:27 [INFO] [stdout] | [INFO] [stdout] 1215 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1218:27 [INFO] [stdout] | [INFO] [stdout] 1218 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1222:27 [INFO] [stdout] | [INFO] [stdout] 1222 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1227:30 [INFO] [stdout] | [INFO] [stdout] 1227 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1230:30 [INFO] [stdout] | [INFO] [stdout] 1230 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1234:30 [INFO] [stdout] | [INFO] [stdout] 1234 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1239:30 [INFO] [stdout] | [INFO] [stdout] 1239 | send(s, 0) -> res => drop::>>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result<(), crossbeam_channel::SendError>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/select_macro.rs:1240:27 [INFO] [stdout] | [INFO] [stdout] 1240 | recv(r) -> res => drop::>(res), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Result` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.37s [INFO] running `Command { std: "docker" "inspect" "ed095f03907cc2b44f1618be3d023a56edceaf8d8e6cb4392e88ec4f12b7e75c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ed095f03907cc2b44f1618be3d023a56edceaf8d8e6cb4392e88ec4f12b7e75c", kill_on_drop: false }` [INFO] [stdout] ed095f03907cc2b44f1618be3d023a56edceaf8d8e6cb4392e88ec4f12b7e75c