[INFO] cloning repository https://github.com/gluon-lang/try_gluon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gluon-lang/try_gluon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgluon-lang%2Ftry_gluon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgluon-lang%2Ftry_gluon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0354a8be6f724d93e24f33022e91c3896dc44c23
[INFO] testing gluon-lang/try_gluon against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgluon-lang%2Ftry_gluon" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gluon-lang/try_gluon on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gluon-lang/try_gluon
[INFO] finished tweaking git repo https://github.com/gluon-lang/try_gluon
[INFO] tweaked toml for git repo https://github.com/gluon-lang/try_gluon written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/gluon-lang/try_gluon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 687d4f1ee6fd17a17501f492b46d17ae7f8bad417ed60dd1877c354dac740b29
[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" "687d4f1ee6fd17a17501f492b46d17ae7f8bad417ed60dd1877c354dac740b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "687d4f1ee6fd17a17501f492b46d17ae7f8bad417ed60dd1877c354dac740b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "687d4f1ee6fd17a17501f492b46d17ae7f8bad417ed60dd1877c354dac740b29", kill_on_drop: false }`
[INFO] [stdout] 687d4f1ee6fd17a17501f492b46d17ae7f8bad417ed60dd1877c354dac740b29
[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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5500d7bb11f0d9ca8de3e21132e1697f3aaa9a460388400494f0842e16f8753
[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" "f5500d7bb11f0d9ca8de3e21132e1697f3aaa9a460388400494f0842e16f8753", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
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[INFO] [stderr]    Compiling autocfg v0.1.7
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[INFO] [stderr]    Compiling rand v0.7.3
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[INFO] [stderr]    Compiling tokio-codec v0.1.2
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[INFO] [stderr]    Compiling tokio-fs v0.1.7
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[INFO] [stderr]    Compiling tokio v0.1.22
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[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling hyperx v0.13.2
[INFO] [stderr]    Compiling tokio-tls v0.2.1
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[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling tokio-util v0.2.0
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[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling serde_derive_state v0.4.9
[INFO] [stderr]    Compiling gluon_codegen v0.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling gluon_codegen v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
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[INFO] [stderr]    Compiling salsa-macros v0.14.1 (https://github.com/Marwes/salsa?rev=3fddf72#3fddf726)
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling salsa-macros v0.13.2
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling salsa v0.13.2
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[INFO] [stderr]    Compiling h2 v0.2.3
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling salsa v0.14.1 (https://github.com/Marwes/salsa?rev=3fddf72#3fddf726)
[INFO] [stderr]    Compiling structopt v0.3.12
[INFO] [stderr]    Compiling hyper v0.13.4
[INFO] [stderr]    Compiling codespan v0.3.0
[INFO] [stderr]    Compiling serde_state v0.4.7
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling codespan-reporting v0.3.0
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[INFO] [stderr]    Compiling handlebars v2.0.4
[INFO] [stderr]    Compiling hubcaps v0.5.0
[INFO] [stderr]    Compiling gluon_base v0.13.1
[INFO] [stderr]    Compiling gluon_base v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon_check v0.13.1
[INFO] [stderr]    Compiling gluon_format v0.13.1
[INFO] [stderr]    Compiling gluon_completion v0.13.1
[INFO] [stderr]    Compiling gluon_check v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon_format v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon_completion v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon v0.13.1
[INFO] [stderr]    Compiling gluon v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon_parser v0.13.1 (https://github.com/gluon-lang/gluon#8034b63d)
[INFO] [stderr]    Compiling gluon_parser v0.13.1
[INFO] [stderr]    Compiling gluon_crates_io v0.1.0 (/opt/rustwide/workdir/gluon_crates_io)
[INFO] [stderr]    Compiling gluon_master v0.1.0 (/opt/rustwide/workdir/gluon_master)
[INFO] [stderr]    Compiling try_gluon v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `try_gluon v0.5.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/try_gluon-3f4982d192df2bd3/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Generating gluon doc: /opt/rustwide/cargo-home/git/checkouts/gluon-9c68e1737197fd9b/8034b63 -> target/dist/doc/nightly
[INFO] [stderr]      0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/backtrace/internal.rs:46
[INFO] [stderr]      1: failure::backtrace::Backtrace::new
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/backtrace/mod.rs:121
[INFO] [stderr]      2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/error/error_impl.rs:19
[INFO] [stderr]      3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/error/mod.rs:36
[INFO] [stderr]      4: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/result.rs:2005
[INFO] [stderr]      5: gluon_doc::DocCollector::module_for
[INFO] [stderr]                at doc/src/lib.rs:552
[INFO] [stderr]      6: gluon_doc::DocCollector::try_add_path
[INFO] [stderr]                at doc/src/lib.rs:504
[INFO] [stderr]      7: gluon_doc::generate
[INFO] [stderr]                at doc/src/lib.rs:618
[INFO] [stderr]      8: gluon_master::generate_doc
[INFO] [stderr]                at gluon_master/src/lib.rs:138
[INFO] [stderr]      9: build_script_build::create_docs::{{closure}}
[INFO] [stderr]                at /opt/rustwide/workdir/build.rs:133
[INFO] [stderr]     10: build_script_build::generate_doc_for_dir_
[INFO] [stderr]                at /opt/rustwide/workdir/build.rs:96
[INFO] [stderr]     11: build_script_build::generate_doc_for_dir
[INFO] [stderr]                at /opt/rustwide/workdir/build.rs:76
[INFO] [stderr]     12: build_script_build::create_docs
[INFO] [stderr]                at /opt/rustwide/workdir/build.rs:128
[INFO] [stderr]     13: build_script_build::main
[INFO] [stderr]                at /opt/rustwide/workdir/build.rs:168
[INFO] [stderr]     14: core::ops::function::FnOnce::call_once
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/ops/function.rs:227
[INFO] [stderr]     15: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/sys_common/backtrace.rs:123
[INFO] [stderr]     16: std::rt::lang_start::{{closure}}
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/rt.rs:145
[INFO] [stderr]     17: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/core/src/ops/function.rs:259
[INFO] [stderr]         std::panicking::try::do_call
[INFO] [stderr]                at library/std/src/panicking.rs:406
[INFO] [stderr]         std::panicking::try
[INFO] [stderr]                at library/std/src/panicking.rs:370
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at library/std/src/panic.rs:133
[INFO] [stderr]         std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at library/std/src/rt.rs:128
[INFO] [stderr]         std::panicking::try::do_call
[INFO] [stderr]                at library/std/src/panicking.rs:406
[INFO] [stderr]         std::panicking::try
[INFO] [stderr]                at library/std/src/panicking.rs:370
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at library/std/src/panic.rs:133
[INFO] [stderr]         std::rt::lang_start_internal
[INFO] [stderr]                at library/std/src/rt.rs:128
[INFO] [stderr]     18: std::rt::lang_start
[INFO] [stderr]                at /rustc/9d1b2106e23b1abd32fce1f17267604a5102f57a/library/std/src/rt.rs:144
[INFO] [stderr]     19: main
[INFO] [stderr]     20: __libc_start_main
[INFO] [stderr]     21: _start
[INFO] [stderr] 
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "f5500d7bb11f0d9ca8de3e21132e1697f3aaa9a460388400494f0842e16f8753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5500d7bb11f0d9ca8de3e21132e1697f3aaa9a460388400494f0842e16f8753", kill_on_drop: false }`
[INFO] [stdout] f5500d7bb11f0d9ca8de3e21132e1697f3aaa9a460388400494f0842e16f8753