[INFO] cloning repository https://github.com/denoland/cargo_gn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/denoland/cargo_gn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenoland%2Fcargo_gn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenoland%2Fcargo_gn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf13796672b2219629e478d2c2849eff97f7b162
[INFO] checking denoland/cargo_gn against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdenoland%2Fcargo_gn" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/denoland/cargo_gn on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/denoland/cargo_gn
[INFO] finished tweaking git repo https://github.com/denoland/cargo_gn
[INFO] tweaked toml for git repo https://github.com/denoland/cargo_gn written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/denoland/cargo_gn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd6047729a998177277edb5ead06f020617496ea9f9401b19f6bf6f83791c373
[INFO] running `Command { std: "docker" "start" "-a" "cd6047729a998177277edb5ead06f020617496ea9f9401b19f6bf6f83791c373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd6047729a998177277edb5ead06f020617496ea9f9401b19f6bf6f83791c373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd6047729a998177277edb5ead06f020617496ea9f9401b19f6bf6f83791c373", kill_on_drop: false }`
[INFO] [stdout] cd6047729a998177277edb5ead06f020617496ea9f9401b19f6bf6f83791c373
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b7b0d5dc2e908487d3c3800f2a1de8602f1cf180b72c80c0075d207ead18306
[INFO] running `Command { std: "docker" "start" "-a" "2b7b0d5dc2e908487d3c3800f2a1de8602f1cf180b72c80c0075d207ead18306", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cargo_gn v0.0.15 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cargo_gn_example v0.0.1 (/opt/rustwide/workdir/example)
[INFO] [stderr] error: failed to run custom build command for `cargo_gn_example v0.0.1 (/opt/rustwide/workdir/example)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cargo_gn_example-6903841694534aff/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   The current directory is /opt/rustwide/workdir/example
[INFO] [stderr]   gn gen --root=/opt/rustwide/workdir/example/. /opt/rustwide/target/debug/gn_out
[INFO] [stderr]   running: "gn" "--root=/opt/rustwide/workdir/example/." "gen" "/opt/rustwide/target/debug/gn_out" "--args=is_debug=true"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at '
[INFO] [stderr]   failed to execute command: No such file or directory (os error 2)
[INFO] [stderr]   is `gn gen` not installed?
[INFO] [stderr] 
[INFO] [stderr]   build script failed, must exit now', src/lib.rs:203:3
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55c5fd8916c0 - std::backtrace_rs::backtrace::libunwind::trace::h0197874f43e7190f
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55c5fd8916c0 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfd566bbbda6f2d
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55c5fd8916c0 - std::sys_common::backtrace::_print_fmt::hb3b4707c15b032a1
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55c5fd8916c0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::had1dceac8b072f88
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55c5fd8af7ac - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/fmt/mod.rs:1117:17
[INFO] [stderr]      5:     0x55c5fd88ecb5 - std::io::Write::write_fmt::h05c3bb2bc83b8ed0
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/io/mod.rs:1667:15
[INFO] [stderr]      6:     0x55c5fd892f5b - std::sys_common::backtrace::_print::h10f0826b2a586b58
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55c5fd892f5b - std::sys_common::backtrace::print::h0d4242fbd1ac3eb6
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55c5fd892f5b - std::panicking::default_hook::{{closure}}::h275ead39fe8b8e2a
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:210:50
[INFO] [stderr]      9:     0x55c5fd892ad0 - std::panicking::default_hook::h5505d4d90f5984d9
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x55c5fd893624 - std::panicking::rust_panic_with_hook::h2f8980d1d9fd4ca0
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:624:17
[INFO] [stderr]     11:     0x55c5fd893100 - std::panicking::begin_panic_handler::{{closure}}::hd87853ef7e40ae97
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:521:13
[INFO] [stderr]     12:     0x55c5fd891bc4 - std::sys_common::backtrace::__rust_end_short_backtrace::hcab167aa940694a2
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55c5fd893069 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:517:5
[INFO] [stderr]     14:     0x55c5fd857b8b - std::panicking::begin_panic_fmt::hb22a56f1d7ee4f34
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:460:5
[INFO] [stderr]     15:     0x55c5fd85ceb3 - cargo_gn::fail::hd035333312d4f4fd
[INFO] [stderr]                                  at /opt/rustwide/workdir/src/lib.rs:203:3
[INFO] [stderr]     16:     0x55c5fd85cbba - cargo_gn::run::hf2227f5f17fa0af9
[INFO] [stderr]                                  at /opt/rustwide/workdir/src/lib.rs:187:7
[INFO] [stderr]     17:     0x55c5fd85bf7c - cargo_gn::maybe_gen::haab82db63fabf8f9
[INFO] [stderr]                                  at /opt/rustwide/workdir/src/lib.rs:141:5
[INFO] [stderr]     18:     0x55c5fd859809 - build_script_build::main::h9ea8dc00ec63684b
[INFO] [stderr]                                  at /opt/rustwide/workdir/example/src/build.rs:9:16
[INFO] [stderr]     19:     0x55c5fd85936b - core::ops::function::FnOnce::call_once::h260a135b5faf190b
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55c5fd85944e - std::sys_common::backtrace::__rust_begin_short_backtrace::h08267b249d9c60d9
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55c5fd859b91 - std::rt::lang_start::{{closure}}::hab86bfe53eca00a1
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:63:18
[INFO] [stderr]     22:     0x55c5fd893b2a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5e3bbb97afe2bb03
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55c5fd893b2a - std::panicking::try::do_call::h48c2d717cec4bdcb
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:403:40
[INFO] [stderr]     24:     0x55c5fd893b2a - std::panicking::try::h2a49bc215893bc14
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:367:19
[INFO] [stderr]     25:     0x55c5fd893b2a - std::panic::catch_unwind::h6d23b7c99550c7ff
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panic.rs:129:14
[INFO] [stderr]     26:     0x55c5fd893b2a - std::rt::lang_start_internal::{{closure}}::h251a0c0729f15896
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:45:48
[INFO] [stderr]     27:     0x55c5fd893b2a - std::panicking::try::do_call::h4830e784a9b9d1ad
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:403:40
[INFO] [stderr]     28:     0x55c5fd893b2a - std::panicking::try::h0427859d2ad3b3b9
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:367:19
[INFO] [stderr]     29:     0x55c5fd893b2a - std::panic::catch_unwind::h4079bfb63395be0f
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panic.rs:129:14
[INFO] [stderr]     30:     0x55c5fd893b2a - std::rt::lang_start_internal::h408e9d26a25a1f08
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:45:20
[INFO] [stderr]     31:     0x55c5fd859b60 - std::rt::lang_start::h5da9007e6a324331
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:62:5
[INFO] [stderr]     32:     0x55c5fd859a2c - main
[INFO] [stderr]     33:     0x7efe9b0c60b3 - __libc_start_main
[INFO] [stderr]     34:     0x55c5fd858a0e - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "2b7b0d5dc2e908487d3c3800f2a1de8602f1cf180b72c80c0075d207ead18306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7b0d5dc2e908487d3c3800f2a1de8602f1cf180b72c80c0075d207ead18306", kill_on_drop: false }`
[INFO] [stdout] 2b7b0d5dc2e908487d3c3800f2a1de8602f1cf180b72c80c0075d207ead18306