[INFO] updating cached repository https://github.com/syhpoon/learnfs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1904f1ba8cebb7c747afe978793ea792e125297b
[INFO] testing syhpoon/learnfs against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyhpoon%2Flearnfs" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syhpoon/learnfs on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/syhpoon/learnfs
[INFO] finished tweaking git repo https://github.com/syhpoon/learnfs
[INFO] tweaked toml for git repo https://github.com/syhpoon/learnfs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/syhpoon/learnfs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47e9c22e2bb612cfd2b80a3187bc57685aee354273a9352bcb921ca344ad64a5
[INFO] running `"docker" "start" "-a" "47e9c22e2bb612cfd2b80a3187bc57685aee354273a9352bcb921ca344ad64a5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling tower-service v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-layer v0.3.0-alpha.2
[INFO] [stderr]    Compiling smallvec v0.6.12
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling serde-big-array v0.2.0
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling tracing-core v0.1.7
[INFO] [stderr]    Compiling memoffset v0.5.2
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.11.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling signal-hook-registry v1.1.1
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling signal-hook v0.1.11
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling http v0.1.19
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling http-body v0.2.0-alpha.3
[INFO] [stderr]    Compiling prost v0.5.0
[INFO] [stderr]    Compiling prost-types v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling pin-project-internal v0.4.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.6
[INFO] [stderr]    Compiling async-stream-impl v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.17
[INFO] [stderr]    Compiling async-stream v0.1.2
[INFO] [stderr]    Compiling pin-project v0.4.5
[INFO] [stderr]    Compiling tower-discover v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-util v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-load-shed v0.3.0-alpha.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling tracing v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.6
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.6
[INFO] [stderr]    Compiling tower-make v0.3.0-alpha.2a
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling h2 v0.2.0-alpha.3
[INFO] [stderr]    Compiling tonic-build v0.1.0-alpha.5
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-timer v0.3.0-alpha.6
[INFO] [stderr]    Compiling tokio-net v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-fs v0.2.0-alpha.6
[INFO] [stderr]    Compiling tower-buffer v0.3.0-alpha.2
[INFO] [stderr]    Compiling learnfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tower-retry v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-limit v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-load v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-timeout v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower v0.3.0-alpha.2
[INFO] [stderr]    Compiling tower-balance v0.3.0-alpha.2
[INFO] [stderr]    Compiling tokio v0.2.0-alpha.6
[INFO] [stderr]    Compiling hyper v0.13.0-alpha.4
[INFO] [stderr] error: failed to run custom build command for `learnfs v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/learnfs-132f7350d0d6d2a4/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] out: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "error: \'rustfmt\' is not installed for the toolchain \'1.44.0-x86_64-unknown-linux-gnu\'\nTo install, run `rustup component add rustfmt --toolchain 1.44.0-x86_64-unknown-linux-gnu`\n" }
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'assertion failed: out.status.success()', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tonic-build-0.1.0-alpha.5/src/lib.rs:214:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561ce72282f4 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x561ce72282f4 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561ce72282f4 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x561ce72282f4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x561ce724da5c - core::fmt::write::hdaea18585065a96d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x561ce72251a3 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x561ce722b065 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x561ce722b065 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x561ce722b065 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x561ce722ada2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x561ce722b745 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stderr]                                at src/libstd/panicking.rs:515
[INFO] [stderr]   11:     0x561ce7173d71 - std::panicking::begin_panic::h251cdcbaa513472f
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x561ce6f4e16c - tonic_build::fmt::h1d7178566b9aebe5
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tonic-build-0.1.0-alpha.5/src/lib.rs:214
[INFO] [stderr]   13:     0x561ce6f2b17a - tonic_build::Builder::compile::h15d2cfffafe2d712
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tonic-build-0.1.0-alpha.5/src/lib.rs:158
[INFO] [stderr]   14:     0x561ce6f2aaea - tonic_build::compile_protos::h162a1ab25d4102fd
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tonic-build-0.1.0-alpha.5/src/lib.rs:193
[INFO] [stderr]   15:     0x561ce6f29fa0 - build_script_build::main::h1311b67348bb02bd
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:26
[INFO] [stderr]   16:     0x561ce6f2944b - std::rt::lang_start::{{closure}}::h15a77b775d0cf923
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x561ce722bb88 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x561ce722bb88 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x561ce722bb88 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x561ce722bb88 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x561ce722bb88 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x561ce6f29427 - std::rt::lang_start::hbf44957b471b1c18
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x561ce6f2a09a - main
[INFO] [stderr]   24:     0x7f31f0ac50b3 - __libc_start_main
[INFO] [stderr]   25:     0x561ce6f0b1ae - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "47e9c22e2bb612cfd2b80a3187bc57685aee354273a9352bcb921ca344ad64a5"`
[INFO] running `"docker" "rm" "-f" "47e9c22e2bb612cfd2b80a3187bc57685aee354273a9352bcb921ca344ad64a5"`
[INFO] [stdout] 47e9c22e2bb612cfd2b80a3187bc57685aee354273a9352bcb921ca344ad64a5