[INFO] cloning repository https://github.com/ldesgoui/head_empty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ldesgoui/head_empty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldesgoui%2Fhead_empty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldesgoui%2Fhead_empty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cf1d7f9b078cfe1bc6e223b34a20ea397377e84
[INFO] testing ldesgoui/head_empty against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldesgoui%2Fhead_empty" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ldesgoui/head_empty on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ldesgoui/head_empty
[INFO] finished tweaking git repo https://github.com/ldesgoui/head_empty
[INFO] tweaked toml for git repo https://github.com/ldesgoui/head_empty written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ldesgoui/head_empty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linkme-impl v0.2.6
[INFO] [stderr]   Downloaded serde_derive v1.0.127
[INFO] [stderr]   Downloaded linkme v0.2.6
[INFO] [stderr]   Downloaded serde v1.0.127
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9c5c980b562e3bc2daa10dfc24346d43349f859a20346307628e3af66fb0495
[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" "b9c5c980b562e3bc2daa10dfc24346d43349f859a20346307628e3af66fb0495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9c5c980b562e3bc2daa10dfc24346d43349f859a20346307628e3af66fb0495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c5c980b562e3bc2daa10dfc24346d43349f859a20346307628e3af66fb0495", kill_on_drop: false }`
[INFO] [stdout] b9c5c980b562e3bc2daa10dfc24346d43349f859a20346307628e3af66fb0495
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2c2eab5c4293d096574320768d8d3e3ffdf1cd9e7017c96fefa3f30adf48077
[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" "b2c2eab5c4293d096574320768d8d3e3ffdf1cd9e7017c96fefa3f30adf48077", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling linkme-impl v0.2.6
[INFO] [stderr]    Compiling linkme v0.2.6
[INFO] [stderr]    Compiling head-empty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.78s
[INFO] running `Command { std: "docker" "inspect" "b2c2eab5c4293d096574320768d8d3e3ffdf1cd9e7017c96fefa3f30adf48077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c2eab5c4293d096574320768d8d3e3ffdf1cd9e7017c96fefa3f30adf48077", kill_on_drop: false }`
[INFO] [stdout] b2c2eab5c4293d096574320768d8d3e3ffdf1cd9e7017c96fefa3f30adf48077
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1968d2c8b40340d995d3bbd8d99af7cf715d0d83e8b136c3f6e5ca1fd15cab2
[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" "a1968d2c8b40340d995d3bbd8d99af7cf715d0d83e8b136c3f6e5ca1fd15cab2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling head-empty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "a1968d2c8b40340d995d3bbd8d99af7cf715d0d83e8b136c3f6e5ca1fd15cab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1968d2c8b40340d995d3bbd8d99af7cf715d0d83e8b136c3f6e5ca1fd15cab2", kill_on_drop: false }`
[INFO] [stdout] a1968d2c8b40340d995d3bbd8d99af7cf715d0d83e8b136c3f6e5ca1fd15cab2
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b6ce1a585b83b652229a7905d7d7fc3e5c90ffd121afe0793eb1d480946b0b4
[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" "9b6ce1a585b83b652229a7905d7d7fc3e5c90ffd121afe0793eb1d480946b0b4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/head_empty-1ebd6e442ac1322b)
[INFO] [stdout] test de::tests::missing_field ... ok
[INFO] [stdout] test de::tests::smoke_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests head-empty
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - register (line 68) ... ok
[INFO] [stdout] test src/lib.rs - register (line 99) ... ok
[INFO] [stdout] test src/lib.rs - register (line 81) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9b6ce1a585b83b652229a7905d7d7fc3e5c90ffd121afe0793eb1d480946b0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6ce1a585b83b652229a7905d7d7fc3e5c90ffd121afe0793eb1d480946b0b4", kill_on_drop: false }`
[INFO] [stdout] 9b6ce1a585b83b652229a7905d7d7fc3e5c90ffd121afe0793eb1d480946b0b4