[INFO] updating cached repository https://github.com/stefandanaita/mock-grpc
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1684079adcbaa529b45608452612dff5d6133515
[INFO] checking stefandanaita/mock-grpc against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefandanaita%2Fmock-grpc" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stefandanaita/mock-grpc on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stefandanaita/mock-grpc
[INFO] finished tweaking git repo https://github.com/stefandanaita/mock-grpc
[INFO] tweaked toml for git repo https://github.com/stefandanaita/mock-grpc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/stefandanaita/mock-grpc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b8ff709b308f2e8f40373d26fd10070944d75563ddb7c9656ea3d79d9a88fbb
[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" "8b8ff709b308f2e8f40373d26fd10070944d75563ddb7c9656ea3d79d9a88fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b8ff709b308f2e8f40373d26fd10070944d75563ddb7c9656ea3d79d9a88fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8ff709b308f2e8f40373d26fd10070944d75563ddb7c9656ea3d79d9a88fbb", kill_on_drop: false }`
[INFO] [stdout] 8b8ff709b308f2e8f40373d26fd10070944d75563ddb7c9656ea3d79d9a88fbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64ea580d96e861a45f23332474cb9dd6eca42c805ec36fc17c2f3345789607bb
[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" "64ea580d96e861a45f23332474cb9dd6eca42c805ec36fc17c2f3345789607bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
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[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
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[INFO] [stderr]    Compiling proc-macro-error v1.0.2
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[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
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[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
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[INFO] [stderr]    Compiling async-stream-impl v0.2.1
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[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking tower-load-shed v0.3.0
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]     Checking tower-load v0.3.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tower-retry v0.3.0
[INFO] [stderr]     Checking tower-make v0.3.0
[INFO] [stderr]     Checking tower-buffer v0.3.0
[INFO] [stderr]     Checking tower-timeout v0.3.0
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking tower-limit v0.3.1
[INFO] [stderr]    Compiling tonic-build v0.2.0
[INFO] [stderr]    Compiling grpc-build v0.0.5
[INFO] [stderr]     Checking tower-ready-cache v0.3.1
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]    Compiling mock-grpc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tower-balance v0.3.0
[INFO] [stderr]     Checking tower v0.3.1
[INFO] [stderr] error: failed to run custom build command for `mock-grpc v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mock-grpc-5960e2868e252953/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Failed to create the output directory: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error("Could not create the output directory")', build.rs:5:57
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x561202c23465 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x561202c23465 - backtrace::backtrace::trace_unsynchronized::hc29c6e6df26d44d7
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x561202c23465 - std::sys_common::backtrace::_print_fmt::h4c9f4993b039bd03
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x561202c23465 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h91f5cfffa0da5a7a
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x561202c4dd2c - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x561202c1ff62 - std::io::Write::write_fmt::h5e28da8ce574bfe8
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x561202c260f0 - std::sys_common::backtrace::_print::h0ceef71d03fb70bc
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x561202c260f0 - std::sys_common::backtrace::print::h1bacb65357a70fca
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x561202c260f0 - std::panicking::default_hook::{{closure}}::h249639eade443064
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x561202c25e3c - std::panicking::default_hook::hbe64ddeb621910df
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x561202c26733 - std::panicking::rust_panic_with_hook::h16376479909ace6a
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x561202c2632b - rust_begin_unwind
[INFO] [stderr]                                  at src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x561202c4bc91 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                  at src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x561202c4bab3 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                  at src/libcore/option.rs:1269
[INFO] [stderr]     14:     0x56120291247c - core::result::Result<T,E>::unwrap::h0a62cdf6f9c1717f
[INFO] [stderr]                                  at /rustc/0ab79c4b48ad19260fa46623f452c1b403a360e8/src/libcore/result.rs:1005
[INFO] [stderr]     15:     0x5612029123d4 - build_script_build::main::hd523ab5d15b9c7ca
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:5
[INFO] [stderr]     16:     0x56120291251b - std::rt::lang_start::{{closure}}::h2d69ed2b062ee90f
[INFO] [stderr]                                  at /rustc/0ab79c4b48ad19260fa46623f452c1b403a360e8/src/libstd/rt.rs:67
[INFO] [stderr]     17:     0x561202c26bd3 - std::rt::lang_start_internal::{{closure}}::h6d7ca43fc52cff4a
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     18:     0x561202c26bd3 - std::panicking::try::do_call::h89610ba8f4fbfe54
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     19:     0x561202c26bd3 - std::panicking::try::h69595087e4498dc2
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     20:     0x561202c26bd3 - std::panic::catch_unwind::ha2aa2ebd78a46e0d
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     21:     0x561202c26bd3 - std::rt::lang_start_internal::h2ae59503bb8c048c
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     22:     0x5612029124f7 - std::rt::lang_start::h27e3a5ad677895d9
[INFO] [stderr]                                  at /rustc/0ab79c4b48ad19260fa46623f452c1b403a360e8/src/libstd/rt.rs:67
[INFO] [stderr]     23:     0x56120291240a - main
[INFO] [stderr]     24:     0x7fc466f880b3 - __libc_start_main
[INFO] [stderr]     25:     0x5612029121be - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "64ea580d96e861a45f23332474cb9dd6eca42c805ec36fc17c2f3345789607bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ea580d96e861a45f23332474cb9dd6eca42c805ec36fc17c2f3345789607bb", kill_on_drop: false }`
[INFO] [stdout] 64ea580d96e861a45f23332474cb9dd6eca42c805ec36fc17c2f3345789607bb