[INFO] cloning repository https://github.com/MarcoPolo/slack-keybase-bridge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcoPolo/slack-keybase-bridge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoPolo%2Fslack-keybase-bridge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoPolo%2Fslack-keybase-bridge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98f3752e591ed9ecd255389be6eb59587e1e55ec
[INFO] checking MarcoPolo/slack-keybase-bridge against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcoPolo%2Fslack-keybase-bridge" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarcoPolo/slack-keybase-bridge on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarcoPolo/slack-keybase-bridge
[INFO] finished tweaking git repo https://github.com/MarcoPolo/slack-keybase-bridge
[INFO] tweaked toml for git repo https://github.com/MarcoPolo/slack-keybase-bridge written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/MarcoPolo/slack-keybase-bridge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", 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] d3c6703bacdcc4c5e1542b094df407eeb73d551f8288c047fadd3a6d37d02b46
[INFO] running `Command { std: "docker" "start" "-a" "d3c6703bacdcc4c5e1542b094df407eeb73d551f8288c047fadd3a6d37d02b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3c6703bacdcc4c5e1542b094df407eeb73d551f8288c047fadd3a6d37d02b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c6703bacdcc4c5e1542b094df407eeb73d551f8288c047fadd3a6d37d02b46", kill_on_drop: false }`
[INFO] [stdout] d3c6703bacdcc4c5e1542b094df407eeb73d551f8288c047fadd3a6d37d02b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fc1f7e49ee1fa1807d08183629dad4292c3c43ae1174b135dd48e54d68248ac
[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" "1fc1f7e49ee1fa1807d08183629dad4292c3c43ae1174b135dd48e54d68248ac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling encoding_rs v0.8.19
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking transient-hashmap v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling hyper v0.12.34
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking publicsuffix v1.5.3
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling avdl-serde-code-generator v0.1.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling keybase-protocol v0.1.1
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr] error: failed to run custom build command for `keybase-protocol v0.1.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/keybase-protocol-fc2ca742db80476e/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=keybase-protocol/
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/keybase-protocol-0.1.1/build.rs:76:66
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5633560ebcb0 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x5633560ebcb0 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x5633560ebcb0 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x5633560ebcb0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x56335610611c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x5633560e9697 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x5633560eddf0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x5633560eddf0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x5633560eddf0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x5633560edb3c - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x5633560ee453 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x5633560ee029 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x5633560ec11c - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x5633560edfe9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x563356105441 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x563356105263 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x563355e8b89f - core::result::Result<T,E>::unwrap::h241afb112ae33853
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x563355e94c17 - build_script_build::main::h81502babbb416a16
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/keybase-protocol-0.1.1/build.rs:76
[INFO] [stderr]     18:     0x563355e8d67b - core::ops::function::FnOnce::call_once::hb99a7afd5f79ccc6
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x563355e994ce - std::sys_common::backtrace::__rust_begin_short_backtrace::h49a67e2bc9c7df9d
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x563355e8b211 - std::rt::lang_start::{{closure}}::h72b68d0b4460a1f9
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x5633560ee851 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x5633560ee851 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x5633560ee851 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x5633560ee851 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x5633560ee851 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x563355e8b1e7 - std::rt::lang_start::h5d61d576581912d5
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x563355e952da - main
[INFO] [stderr]     28:     0x7fc8491d60b3 - __libc_start_main
[INFO] [stderr]     29:     0x563355e7c0be - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1fc1f7e49ee1fa1807d08183629dad4292c3c43ae1174b135dd48e54d68248ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc1f7e49ee1fa1807d08183629dad4292c3c43ae1174b135dd48e54d68248ac", kill_on_drop: false }`
[INFO] [stdout] 1fc1f7e49ee1fa1807d08183629dad4292c3c43ae1174b135dd48e54d68248ac
