[INFO] fetching crate semka 1.0.1...
[INFO] checking semka-1.0.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate semka 1.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate semka 1.0.1 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semka 1.0.1
[INFO] finished tweaking crates.io crate semka 1.0.1
[INFO] tweaked toml for crates.io crate semka 1.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33c6c87efd85ecacec317ecccb63bbbe978db3e9ccb5ac8e483ee82c88ff5a3b
[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" "33c6c87efd85ecacec317ecccb63bbbe978db3e9ccb5ac8e483ee82c88ff5a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33c6c87efd85ecacec317ecccb63bbbe978db3e9ccb5ac8e483ee82c88ff5a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c6c87efd85ecacec317ecccb63bbbe978db3e9ccb5ac8e483ee82c88ff5a3b", kill_on_drop: false }`
[INFO] [stdout] 33c6c87efd85ecacec317ecccb63bbbe978db3e9ccb5ac8e483ee82c88ff5a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1055f138dcf3cb0fbc4c2f40c87c8bab2349eb0c03b1987a273ee83d9d29ffd5
[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" "1055f138dcf3cb0fbc4c2f40c87c8bab2349eb0c03b1987a273ee83d9d29ffd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking str-buf v1.0.5
[INFO] [stderr]     Checking error-code v2.0.2
[INFO] [stderr]     Checking semka v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/atomic.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::sync::atomic::{AtomicBool, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/atomic.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             spin_loop_hint();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/atomic.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::sync::atomic::{AtomicBool, Ordering, spin_loop_hint};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/atomic.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             spin_loop_hint();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |         self.counter.compare_and_swap(true, false, Ordering::SeqCst)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/atomic.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |         self.counter.compare_and_swap(true, false, Ordering::SeqCst)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "1055f138dcf3cb0fbc4c2f40c87c8bab2349eb0c03b1987a273ee83d9d29ffd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1055f138dcf3cb0fbc4c2f40c87c8bab2349eb0c03b1987a273ee83d9d29ffd5", kill_on_drop: false }`
[INFO] [stdout] 1055f138dcf3cb0fbc4c2f40c87c8bab2349eb0c03b1987a273ee83d9d29ffd5