[INFO] fetching crate ns-std-threaded 0.3.0...
[INFO] testing ns-std-threaded-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ns-std-threaded 0.3.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate ns-std-threaded 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ns-std-threaded 0.3.0
[INFO] finished tweaking crates.io crate ns-std-threaded 0.3.0
[INFO] tweaked toml for crates.io crate ns-std-threaded 0.3.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b258aff39498fa0e95ca7195d7554743892dd08c0d8a139554033f87b123478d
[INFO] running `Command { std: "docker" "start" "-a" "b258aff39498fa0e95ca7195d7554743892dd08c0d8a139554033f87b123478d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b258aff39498fa0e95ca7195d7554743892dd08c0d8a139554033f87b123478d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b258aff39498fa0e95ca7195d7554743892dd08c0d8a139554033f87b123478d", kill_on_drop: false }`
[INFO] [stdout] b258aff39498fa0e95ca7195d7554743892dd08c0d8a139554033f87b123478d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55e1e44b47a0ad0f157e7c51c8f6f85d57a586cd49de7a72d849f20b3a234da8
[INFO] running `Command { std: "docker" "start" "-a" "55e1e44b47a0ad0f157e7c51c8f6f85d57a586cd49de7a72d849f20b3a234da8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling abstract-ns v0.4.3
[INFO] [stderr]    Compiling ns-std-threaded v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "55e1e44b47a0ad0f157e7c51c8f6f85d57a586cd49de7a72d849f20b3a234da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e1e44b47a0ad0f157e7c51c8f6f85d57a586cd49de7a72d849f20b3a234da8", kill_on_drop: false }`
[INFO] [stdout] 55e1e44b47a0ad0f157e7c51c8f6f85d57a586cd49de7a72d849f20b3a234da8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dde90701e1b369d24c9c81aa3404ffe1e24b39561c6a62e2d83305fb68eb416
[INFO] running `Command { std: "docker" "start" "-a" "5dde90701e1b369d24c9c81aa3404ffe1e24b39561c6a62e2d83305fb68eb416", kill_on_drop: false }`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling ns-std-threaded v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "5dde90701e1b369d24c9c81aa3404ffe1e24b39561c6a62e2d83305fb68eb416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dde90701e1b369d24c9c81aa3404ffe1e24b39561c6a62e2d83305fb68eb416", kill_on_drop: false }`
[INFO] [stdout] 5dde90701e1b369d24c9c81aa3404ffe1e24b39561c6a62e2d83305fb68eb416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e255c4cde4d5a3b1306a0b6b32664d9e4af7b0f6436148c2d8d186ae877b7a2a
[INFO] running `Command { std: "docker" "start" "-a" "e255c4cde4d5a3b1306a0b6b32664d9e4af7b0f6436148c2d8d186ae877b7a2a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ns_std_threaded-a5b80e597f04139d)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ns-std-threaded
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e255c4cde4d5a3b1306a0b6b32664d9e4af7b0f6436148c2d8d186ae877b7a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e255c4cde4d5a3b1306a0b6b32664d9e4af7b0f6436148c2d8d186ae877b7a2a", kill_on_drop: false }`
[INFO] [stdout] e255c4cde4d5a3b1306a0b6b32664d9e4af7b0f6436148c2d8d186ae877b7a2a