[INFO] fetching crate safina-sync 0.2.4...
[INFO] checking safina-sync-0.2.4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate safina-sync 0.2.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate safina-sync 0.2.4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safina-sync 0.2.4
[INFO] finished tweaking crates.io crate safina-sync 0.2.4
[INFO] tweaked toml for crates.io crate safina-sync 0.2.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--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 safina-threadpool v0.2.4
[INFO] [stderr]   Downloaded safina-async-test-core v0.1.4
[INFO] [stderr]   Downloaded safina-timer v0.1.11
[INFO] [stderr]   Downloaded safina-executor v0.3.3
[INFO] [stderr]   Downloaded safina-async-test v0.1.13
[INFO] [stderr]   Downloaded safe-proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded safina-sync v0.2.4
[INFO] [stderr]   Downloaded safe-quote v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93d58d408308bf73f7c3a6a5f689fdf64caf6d3625184ff1df68d9dfe8736a80
[INFO] running `Command { std: "docker" "start" "-a" "93d58d408308bf73f7c3a6a5f689fdf64caf6d3625184ff1df68d9dfe8736a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d58d408308bf73f7c3a6a5f689fdf64caf6d3625184ff1df68d9dfe8736a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d58d408308bf73f7c3a6a5f689fdf64caf6d3625184ff1df68d9dfe8736a80", kill_on_drop: false }`
[INFO] [stdout] 93d58d408308bf73f7c3a6a5f689fdf64caf6d3625184ff1df68d9dfe8736a80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4ec3f97a3e9560e5ee797c9d50984e3ff8af838b9d0e5c1a16fd6316c399de7
[INFO] running `Command { std: "docker" "start" "-a" "d4ec3f97a3e9560e5ee797c9d50984e3ff8af838b9d0e5c1a16fd6316c399de7", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.67
[INFO] [stderr]     Checking safina-threadpool v0.2.4
[INFO] [stderr]     Checking safina-sync v0.2.4
[INFO] [stderr]     Checking safina-sync v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking safina-timer v0.1.11
[INFO] [stdout] warning: unexpected `cfg` condition name: `unstble`
[INFO] [stdout]    --> src/channel.rs:301:11
[INFO] [stdout]     |
[INFO] [stdout] 301 |     #[cfg(unstble)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstble)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstble)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking safina-executor v0.3.3
[INFO] [stderr]    Compiling safe-quote v1.0.15
[INFO] [stderr]    Compiling safina-async-test-core v0.1.4
[INFO] [stderr]     Checking safina-async-test v0.1.13
[INFO] [stdout] warning: unexpected `cfg` condition name: `unstble`
[INFO] [stdout]    --> src/channel.rs:301:11
[INFO] [stdout]     |
[INFO] [stdout] 301 |     #[cfg(unstble)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstble)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstble)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "d4ec3f97a3e9560e5ee797c9d50984e3ff8af838b9d0e5c1a16fd6316c399de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ec3f97a3e9560e5ee797c9d50984e3ff8af838b9d0e5c1a16fd6316c399de7", kill_on_drop: false }`
[INFO] [stdout] d4ec3f97a3e9560e5ee797c9d50984e3ff8af838b9d0e5c1a16fd6316c399de7