[INFO] fetching crate stream-kmerge 0.2.0... [INFO] checking stream-kmerge-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate stream-kmerge 0.2.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate stream-kmerge 0.2.0 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 stream-kmerge 0.2.0 [INFO] finished tweaking crates.io crate stream-kmerge 0.2.0 [INFO] tweaked toml for crates.io crate stream-kmerge 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages [INFO] [stderr] Adding binary-heap-plus v0.4.1 (latest: v0.5.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [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 compare v0.1.0 [INFO] [stderr] Downloaded binary-heap-plus v0.4.1 [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] 6938c4d79cfe7e03e98bb987ab8cafd0238de939e28574daf8b8a6dca8d13fc2 [INFO] running `Command { std: "docker" "start" "-a" "6938c4d79cfe7e03e98bb987ab8cafd0238de939e28574daf8b8a6dca8d13fc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6938c4d79cfe7e03e98bb987ab8cafd0238de939e28574daf8b8a6dca8d13fc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6938c4d79cfe7e03e98bb987ab8cafd0238de939e28574daf8b8a6dca8d13fc2", kill_on_drop: false }` [INFO] [stdout] 6938c4d79cfe7e03e98bb987ab8cafd0238de939e28574daf8b8a6dca8d13fc2 [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] e8ef01ee695bf8db19971568a58a3598266681ea2c94796e0a5c0dbef48ed8bc [INFO] running `Command { std: "docker" "start" "-a" "e8ef01ee695bf8db19971568a58a3598266681ea2c94796e0a5c0dbef48ed8bc", kill_on_drop: false }` [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking compare v0.1.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking binary-heap-plus v0.4.1 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tokio-stream v0.1.15 [INFO] [stderr] Checking tokio-test v0.4.4 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking stream-kmerge v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a type alias [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FutureExt` is imported redundantly [INFO] [stdout] --> src/lib.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | use futures::FutureExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `FutureExt` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Stream` is imported redundantly [INFO] [stdout] --> src/lib.rs:287:9 [INFO] [stdout] | [INFO] [stdout] 287 | use futures::Stream; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `Stream` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `StreamExt` is imported redundantly [INFO] [stdout] --> src/lib.rs:288:9 [INFO] [stdout] | [INFO] [stdout] 288 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `StreamExt` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a type alias [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.13s [INFO] running `Command { std: "docker" "inspect" "e8ef01ee695bf8db19971568a58a3598266681ea2c94796e0a5c0dbef48ed8bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8ef01ee695bf8db19971568a58a3598266681ea2c94796e0a5c0dbef48ed8bc", kill_on_drop: false }` [INFO] [stdout] e8ef01ee695bf8db19971568a58a3598266681ea2c94796e0a5c0dbef48ed8bc [INFO] checking stream-kmerge-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate stream-kmerge 0.2.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate stream-kmerge 0.2.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate stream-kmerge 0.2.0 [INFO] finished tweaking crates.io crate stream-kmerge 0.2.0 [INFO] tweaked toml for crates.io crate stream-kmerge 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages [INFO] [stderr] Adding binary-heap-plus v0.4.1 (latest: v0.5.0) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79900f8f6102d7d66d91bea420a54b95b192c477ba81c5f97b9ac2e34d247146 [INFO] running `Command { std: "docker" "start" "-a" "79900f8f6102d7d66d91bea420a54b95b192c477ba81c5f97b9ac2e34d247146", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79900f8f6102d7d66d91bea420a54b95b192c477ba81c5f97b9ac2e34d247146", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79900f8f6102d7d66d91bea420a54b95b192c477ba81c5f97b9ac2e34d247146", kill_on_drop: false }` [INFO] [stdout] 79900f8f6102d7d66d91bea420a54b95b192c477ba81c5f97b9ac2e34d247146 [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f7cc493bcc922b2ef337b8d4bf357cb03d8e9dc10ff4b673484322f27dd2161 [INFO] running `Command { std: "docker" "start" "-a" "9f7cc493bcc922b2ef337b8d4bf357cb03d8e9dc10ff4b673484322f27dd2161", kill_on_drop: false }` [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking compare v0.1.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking binary-heap-plus v0.4.1 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tokio-stream v0.1.15 [INFO] [stderr] Checking tokio-test v0.4.4 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking stream-kmerge v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `FutureExt` is imported redundantly [INFO] [stdout] --> src/lib.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | use futures::FutureExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `FutureExt` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Stream` is imported redundantly [INFO] [stdout] --> src/lib.rs:287:9 [INFO] [stdout] | [INFO] [stdout] 287 | use futures::Stream; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `Stream` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `StreamExt` is imported redundantly [INFO] [stdout] --> src/lib.rs:288:9 [INFO] [stdout] | [INFO] [stdout] 288 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 293 | use super::*; [INFO] [stdout] | -------- the item `StreamExt` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a type alias [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` has no effect when applied to a type alias [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.80s [INFO] running `Command { std: "docker" "inspect" "9f7cc493bcc922b2ef337b8d4bf357cb03d8e9dc10ff4b673484322f27dd2161", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f7cc493bcc922b2ef337b8d4bf357cb03d8e9dc10ff4b673484322f27dd2161", kill_on_drop: false }` [INFO] [stdout] 9f7cc493bcc922b2ef337b8d4bf357cb03d8e9dc10ff4b673484322f27dd2161