[INFO] fetching crate btfs 0.0.4...
[INFO] testing btfs-0.0.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate btfs 0.0.4 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate btfs 0.0.4 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 btfs 0.0.4
[INFO] finished tweaking crates.io crate btfs 0.0.4
[INFO] tweaked toml for crates.io crate btfs 0.0.4 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate btfs 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded fuse v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 7a76580f9b179d9036c1625dd8e86f825f485e9c26beb7cd223296ffd87a9c58
[INFO] running `Command { std: "docker" "start" "-a" "7a76580f9b179d9036c1625dd8e86f825f485e9c26beb7cd223296ffd87a9c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a76580f9b179d9036c1625dd8e86f825f485e9c26beb7cd223296ffd87a9c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a76580f9b179d9036c1625dd8e86f825f485e9c26beb7cd223296ffd87a9c58", kill_on_drop: false }`
[INFO] [stdout] 7a76580f9b179d9036c1625dd8e86f825f485e9c26beb7cd223296ffd87a9c58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 20a98cdbcc058135b150eace7d73d014c4c57dd81efbd535f587ccdc92b70c26
[INFO] running `Command { std: "docker" "start" "-a" "20a98cdbcc058135b150eace7d73d014c4c57dd81efbd535f587ccdc92b70c26", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling btfs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.16s
[INFO] running `Command { std: "docker" "inspect" "20a98cdbcc058135b150eace7d73d014c4c57dd81efbd535f587ccdc92b70c26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a98cdbcc058135b150eace7d73d014c4c57dd81efbd535f587ccdc92b70c26", kill_on_drop: false }`
[INFO] [stdout] 20a98cdbcc058135b150eace7d73d014c4c57dd81efbd535f587ccdc92b70c26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 770b420a576c637043924f25940732789ea5befd3b3b903525740ed68be26145
[INFO] running `Command { std: "docker" "start" "-a" "770b420a576c637043924f25940732789ea5befd3b3b903525740ed68be26145", kill_on_drop: false }`
[INFO] [stderr]    Compiling btfs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "770b420a576c637043924f25940732789ea5befd3b3b903525740ed68be26145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770b420a576c637043924f25940732789ea5befd3b3b903525740ed68be26145", kill_on_drop: false }`
[INFO] [stdout] 770b420a576c637043924f25940732789ea5befd3b3b903525740ed68be26145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 7bbd19689f463e49de775ab519e28b4215c040aa2f590e58e7afabe12b80fa8f
[INFO] running `Command { std: "docker" "start" "-a" "7bbd19689f463e49de775ab519e28b4215c040aa2f590e58e7afabe12b80fa8f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btfs-9da3cb48fc5ee351)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::memfs_update ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fuse-4883730b4feeb287)
[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] [stderr]    Doc-tests btfs
[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" "7bbd19689f463e49de775ab519e28b4215c040aa2f590e58e7afabe12b80fa8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bbd19689f463e49de775ab519e28b4215c040aa2f590e58e7afabe12b80fa8f", kill_on_drop: false }`
[INFO] [stdout] 7bbd19689f463e49de775ab519e28b4215c040aa2f590e58e7afabe12b80fa8f