[INFO] crate var-watcher 0.1.0 is already in cache
[INFO] testing var-watcher-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate var-watcher 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate var-watcher 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate var-watcher 0.1.0
[INFO] finished tweaking crates.io crate var-watcher 0.1.0
[INFO] tweaked toml for crates.io crate var-watcher 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 697763ab6cfee30a08eaf8e802d25f704b8a958917b49f29ec6857dacac1c38e
[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" "697763ab6cfee30a08eaf8e802d25f704b8a958917b49f29ec6857dacac1c38e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "697763ab6cfee30a08eaf8e802d25f704b8a958917b49f29ec6857dacac1c38e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "697763ab6cfee30a08eaf8e802d25f704b8a958917b49f29ec6857dacac1c38e", kill_on_drop: false }`
[INFO] [stdout] 697763ab6cfee30a08eaf8e802d25f704b8a958917b49f29ec6857dacac1c38e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d711860ceae9854ca070ebbbb2b0e7033c7b64bc1405f9f6d4701838d3a0a4b5
[INFO] running `Command { std: "docker" "start" "-a" "d711860ceae9854ca070ebbbb2b0e7033c7b64bc1405f9f6d4701838d3a0a4b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling var-watcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "d711860ceae9854ca070ebbbb2b0e7033c7b64bc1405f9f6d4701838d3a0a4b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d711860ceae9854ca070ebbbb2b0e7033c7b64bc1405f9f6d4701838d3a0a4b5", kill_on_drop: false }`
[INFO] [stdout] d711860ceae9854ca070ebbbb2b0e7033c7b64bc1405f9f6d4701838d3a0a4b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d5aa8e43eb9502fe15d526c7b6da6fec5fd8002de236db0895f1c1ca7989be8
[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" "3d5aa8e43eb9502fe15d526c7b6da6fec5fd8002de236db0895f1c1ca7989be8", kill_on_drop: false }`
[INFO] [stderr]    Compiling var-watcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "3d5aa8e43eb9502fe15d526c7b6da6fec5fd8002de236db0895f1c1ca7989be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5aa8e43eb9502fe15d526c7b6da6fec5fd8002de236db0895f1c1ca7989be8", kill_on_drop: false }`
[INFO] [stdout] 3d5aa8e43eb9502fe15d526c7b6da6fec5fd8002de236db0895f1c1ca7989be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2f015e18635e08430a4d9d3c1e2db83fc5e843ec777300ed2b69846952aaf78
[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" "f2f015e18635e08430a4d9d3c1e2db83fc5e843ec777300ed2b69846952aaf78", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/var_watcher-10f1a2dbe9254137
[INFO] [stdout] test watcher::tests::initiate_callback ... ok
[INFO] [stderr]    Doc-tests var-watcher
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2f015e18635e08430a4d9d3c1e2db83fc5e843ec777300ed2b69846952aaf78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f015e18635e08430a4d9d3c1e2db83fc5e843ec777300ed2b69846952aaf78", kill_on_drop: false }`
[INFO] [stdout] f2f015e18635e08430a4d9d3c1e2db83fc5e843ec777300ed2b69846952aaf78