[INFO] fetching crate tokio-lk 0.2.2... [INFO] building tokio-lk-0.2.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1 [INFO] extracting crate tokio-lk 0.2.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate tokio-lk 0.2.2 [INFO] finished tweaking crates.io crate tokio-lk 0.2.2 [INFO] tweaked toml for crates.io crate tokio-lk 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tokio-lk 0.2.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 48 packages to latest compatible versions [INFO] [stderr] Adding crossbeam v0.7.3 (available: v0.8.4) [INFO] [stderr] Adding dashmap v3.11.10 (available: v6.1.0) [INFO] [stderr] Adding hashbrown v0.7.2 (available: v0.16.0) [INFO] [stderr] Adding tokio v0.2.25 (available: v1.47.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1d369ea0feff1757699239058252883b63dbd608ecaba7159ea11751aadabc1b [INFO] running `Command { std: "docker" "start" "-a" "1d369ea0feff1757699239058252883b63dbd608ecaba7159ea11751aadabc1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1d369ea0feff1757699239058252883b63dbd608ecaba7159ea11751aadabc1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d369ea0feff1757699239058252883b63dbd608ecaba7159ea11751aadabc1b", kill_on_drop: false }` [INFO] [stdout] 1d369ea0feff1757699239058252883b63dbd608ecaba7159ea11751aadabc1b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 22dca83ae30ba155649ecd34484d9f6e5839164256f7c6ca89dbafccc54156a3 [INFO] running `Command { std: "docker" "start" "-a" "22dca83ae30ba155649ecd34484d9f6e5839164256f7c6ca89dbafccc54156a3", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling crossbeam-channel v0.4.4 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling const-random-macro v0.1.16 [INFO] [stderr] Compiling crossbeam v0.7.3 [INFO] [stderr] Compiling const-random v0.1.18 [INFO] [stderr] Compiling ahash v0.3.8 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling tokio-lk v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:66:18 [INFO] [stdout] | [INFO] [stdout] 66 | #![feature(test, specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AssertSync` is never used [INFO] [stdout] --> src/atomic_serial_waker.rs:32:15 [INFO] [stdout] | [INFO] [stdout] 32 | trait AssertSync: Sync {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.91s [INFO] running `Command { std: "docker" "inspect" "22dca83ae30ba155649ecd34484d9f6e5839164256f7c6ca89dbafccc54156a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22dca83ae30ba155649ecd34484d9f6e5839164256f7c6ca89dbafccc54156a3", kill_on_drop: false }` [INFO] [stdout] 22dca83ae30ba155649ecd34484d9f6e5839164256f7c6ca89dbafccc54156a3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 61eec0856172a8e02789fdeef64b69b32a63203785d8d46f756163885c3ab34a [INFO] running `Command { std: "docker" "start" "-a" "61eec0856172a8e02789fdeef64b69b32a63203785d8d46f756163885c3ab34a", kill_on_drop: false }` [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:66:18 [INFO] [stdout] | [INFO] [stdout] 66 | #![feature(test, specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tokio-lk v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `AssertSync` is never used [INFO] [stdout] --> src/atomic_serial_waker.rs:32:15 [INFO] [stdout] | [INFO] [stdout] 32 | trait AssertSync: Sync {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:66:18 [INFO] [stdout] | [INFO] [stdout] 66 | #![feature(test, specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AssertSync` is never used [INFO] [stdout] --> src/atomic_serial_waker.rs:32:15 [INFO] [stdout] | [INFO] [stdout] 32 | trait AssertSync: Sync {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s [INFO] running `Command { std: "docker" "inspect" "61eec0856172a8e02789fdeef64b69b32a63203785d8d46f756163885c3ab34a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61eec0856172a8e02789fdeef64b69b32a63203785d8d46f756163885c3ab34a", kill_on_drop: false }` [INFO] [stdout] 61eec0856172a8e02789fdeef64b69b32a63203785d8d46f756163885c3ab34a