[INFO] fetching crate yarte_helpers 0.15.1...
[INFO] testing yarte_helpers-0.15.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate yarte_helpers 0.15.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yarte_helpers 0.15.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yarte_helpers 0.15.1
[INFO] finished tweaking crates.io crate yarte_helpers 0.15.1
[INFO] tweaked toml for crates.io crate yarte_helpers 0.15.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 random-trait v0.1.1
[INFO] [stderr]   Downloaded random-fast-rng v0.1.1
[INFO] [stderr]   Downloaded v_jsonescape v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55dd4997fafebc2b389ce13aacd51560fcd9dd97c2fe4dcec8e65330c02d04e5
[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" "55dd4997fafebc2b389ce13aacd51560fcd9dd97c2fe4dcec8e65330c02d04e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55dd4997fafebc2b389ce13aacd51560fcd9dd97c2fe4dcec8e65330c02d04e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55dd4997fafebc2b389ce13aacd51560fcd9dd97c2fe4dcec8e65330c02d04e5", kill_on_drop: false }`
[INFO] [stdout] 55dd4997fafebc2b389ce13aacd51560fcd9dd97c2fe4dcec8e65330c02d04e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c61c4102c6ae13c0b8941d51212352a249a75effbf6fced2a206b1c44c9c9620
[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" "c61c4102c6ae13c0b8941d51212352a249a75effbf6fced2a206b1c44c9c9620", kill_on_drop: false }`
[INFO] [stderr]    Compiling bugreport v0.4.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling v_escape v0.16.1
[INFO] [stderr]    Compiling std_prelude v0.2.12
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling v_htmlescape v0.13.1
[INFO] [stderr]    Compiling bat v0.18.3
[INFO] [stderr]    Compiling shell-words v1.0.0
[INFO] [stderr]    Compiling sys-info v0.9.0
[INFO] [stderr]    Compiling ansi_colours v1.0.4
[INFO] [stderr]    Compiling buf-min v0.6.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling content_inspector v0.2.4
[INFO] [stderr]    Compiling git-version-macro v0.3.5
[INFO] [stderr]    Compiling fancy-regex v0.7.1
[INFO] [stderr]    Compiling v_escape_derive v0.8.4
[INFO] [stderr]    Compiling toolchain_find v0.2.0
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling path_abs v0.5.1
[INFO] [stderr]    Compiling plist v1.2.1
[INFO] [stderr]    Compiling serde_yaml v0.8.21
[INFO] [stderr]    Compiling clircle v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling git-version v0.3.5
[INFO] [stderr]    Compiling grep-cli v0.1.6
[INFO] [stderr]    Compiling syntect v4.6.0
[INFO] [stderr]    Compiling yarte_helpers v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.75s
[INFO] running `Command { std: "docker" "inspect" "c61c4102c6ae13c0b8941d51212352a249a75effbf6fced2a206b1c44c9c9620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61c4102c6ae13c0b8941d51212352a249a75effbf6fced2a206b1c44c9c9620", kill_on_drop: false }`
[INFO] [stdout] c61c4102c6ae13c0b8941d51212352a249a75effbf6fced2a206b1c44c9c9620
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dca37ee3138609d5b2f39a751c6f98c88053d0822d8633bd5723cf4459ca75a7
[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" "dca37ee3138609d5b2f39a751c6f98c88053d0822d8633bd5723cf4459ca75a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling random-trait v0.1.1
[INFO] [stderr]    Compiling random-fast-rng v0.1.1
[INFO] [stderr]    Compiling yarte_helpers v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `Command { std: "docker" "inspect" "dca37ee3138609d5b2f39a751c6f98c88053d0822d8633bd5723cf4459ca75a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca37ee3138609d5b2f39a751c6f98c88053d0822d8633bd5723cf4459ca75a7", kill_on_drop: false }`
[INFO] [stdout] dca37ee3138609d5b2f39a751c6f98c88053d0822d8633bd5723cf4459ca75a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f4e38911e9e5567aa992fd83a91bec09455ee5640b302645d32730cd81165066
[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" "f4e38911e9e5567aa992fd83a91bec09455ee5640b302645d32730cd81165066", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yarte_helpers-7b337c6020997acc)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test helpers::io_fmt::test::test ... ok
[INFO] [stdout] test helpers::integers::tests::test_i8_all ... ok
[INFO] [stdout] test helpers::integers::tests::test_16_all ... ok
[INFO] [stdout] test helpers::integers::tests::test_u32_random ... ok
[INFO] [stdout] test helpers::integers::tests::test_u64_random ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 22.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yarte_helpers
[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" "f4e38911e9e5567aa992fd83a91bec09455ee5640b302645d32730cd81165066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e38911e9e5567aa992fd83a91bec09455ee5640b302645d32730cd81165066", kill_on_drop: false }`
[INFO] [stdout] f4e38911e9e5567aa992fd83a91bec09455ee5640b302645d32730cd81165066