[INFO] cloning repository https://github.com/dymk/rusty_trees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dymk/rusty_trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdymk%2Frusty_trees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdymk%2Frusty_trees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c02f6acfca90202830df461ef37fc9aaec20d56
[INFO] checking dymk/rusty_trees against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdymk%2Frusty_trees" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dymk/rusty_trees on toolchain 9f48dedc9763334a587c66558974635807a113ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dymk/rusty_trees
[INFO] finished tweaking git repo https://github.com/dymk/rusty_trees
[INFO] tweaked toml for git repo https://github.com/dymk/rusty_trees written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dymk/rusty_trees already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c466ec952b734b562212a1b6b43a6f0d67c6a2993a5f5d3553c7e981e206d0ce
[INFO] running `Command { std: "docker" "start" "-a" "c466ec952b734b562212a1b6b43a6f0d67c6a2993a5f5d3553c7e981e206d0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c466ec952b734b562212a1b6b43a6f0d67c6a2993a5f5d3553c7e981e206d0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c466ec952b734b562212a1b6b43a6f0d67c6a2993a5f5d3553c7e981e206d0ce", kill_on_drop: false }`
[INFO] [stdout] c466ec952b734b562212a1b6b43a6f0d67c6a2993a5f5d3553c7e981e206d0ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b3138759bb3c6918dcf25072970bdb91ba14bde1397c60c837e94a5b61db938
[INFO] running `Command { std: "docker" "start" "-a" "0b3138759bb3c6918dcf25072970bdb91ba14bde1397c60c837e94a5b61db938", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling rusty_trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr] error: failed to run custom build command for `rusty_trees v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rusty_trees-06c0bb04b93fe08e/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at build.rs:15:10:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5f416919e4a3 - std::backtrace_rs::backtrace::libunwind::trace::h66a857252c6cd84b
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5f416919e4a3 - std::backtrace_rs::backtrace::trace_unsynchronized::h8785cb1be7974adc
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5f416919e4a3 - std::sys::backtrace::_print_fmt::h8df81d6c4254fa9c
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5f416919e4a3 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h34f0385d14ae3533
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5f41691bbb33 - core::fmt::rt::Argument::fmt::h703e67cc35b78140
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5f41691bbb33 - core::fmt::write::ha02be0b7dae2a082
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/core/src/fmt/mod.rs:1449:21
[INFO] [stderr]      6:     0x5f416919bd03 - std::io::Write::write_fmt::h96d540fb7f7e16aa
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/io/mod.rs:1890:15
[INFO] [stderr]      7:     0x5f416919e2f2 - std::sys::backtrace::BacktraceLock::print::h9d47a62c5c049a75
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5f416919f22a - std::panicking::default_hook::{{closure}}::ha5167c805bad0d52
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:298:22
[INFO] [stderr]      9:     0x5f416919f09a - std::panicking::default_hook::hc5ab39792a8d2efb
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:325:9
[INFO] [stderr]     10:     0x5f416919faf2 - std::panicking::rust_panic_with_hook::h58a5f790738b8ed4
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:831:13
[INFO] [stderr]     11:     0x5f416919f98a - std::panicking::begin_panic_handler::{{closure}}::hdc115c708fcb73d3
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:704:13
[INFO] [stderr]     12:     0x5f416919e999 - std::sys::backtrace::__rust_end_short_backtrace::h6bbc04df5a1455b9
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     13:     0x5f416919f61d - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:695:5
[INFO] [stderr]     14:     0x5f41691bad80 - core::panicking::panic_fmt::h417e5c070e11537d
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/core/src/panicking.rs:75:14
[INFO] [stderr]     15:     0x5f41691bb116 - core::result::unwrap_failed::h5f2e24e7f4642fb0
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/core/src/result.rs:1704:5
[INFO] [stderr]     16:     0x5f416917def3 - build_script_build::main::hc8df6004256d34a3
[INFO] [stderr]     17:     0x5f416917d9d3 - core::ops::function::FnOnce::call_once::h4f43c646a17753e7
[INFO] [stderr]     18:     0x5f416917d926 - std::sys::backtrace::__rust_begin_short_backtrace::h73a0389d38574a98
[INFO] [stderr]     19:     0x5f416917d8f9 - std::rt::lang_start::{{closure}}::he94b8d0318636000
[INFO] [stderr]     20:     0x5f4169198dd0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h826efdf8840fdcaa
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     21:     0x5f4169198dd0 - std::panicking::try::do_call::h82519b77efe49a5a
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:587:40
[INFO] [stderr]     22:     0x5f4169198dd0 - std::panicking::try::h12521ecdc57fa028
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:550:19
[INFO] [stderr]     23:     0x5f4169198dd0 - std::panic::catch_unwind::h7c2b5a571b31d60c
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x5f4169198dd0 - std::rt::lang_start_internal::{{closure}}::hdc07f1b35666f46a
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/rt.rs:168:24
[INFO] [stderr]     25:     0x5f4169198dd0 - std::panicking::try::do_call::he63ce679d14cb280
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:587:40
[INFO] [stderr]     26:     0x5f4169198dd0 - std::panicking::try::h25ac5fe7cf6c23ea
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panicking.rs:550:19
[INFO] [stderr]     27:     0x5f4169198dd0 - std::panic::catch_unwind::h1b848e992d549d8f
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5f4169198dd0 - std::rt::lang_start_internal::hb8b5546e6552e08b
[INFO] [stderr]                                  at /rustc/9f48dedc9763334a587c66558974635807a113ed/library/std/src/rt.rs:164:5
[INFO] [stderr]     29:     0x5f416917d8e1 - std::rt::lang_start::h58e7848461d6780a
[INFO] [stderr]     30:     0x5f416917df65 - main
[INFO] [stderr]     31:     0x73b2c5a42d90 - <unknown>
[INFO] [stderr]     32:     0x73b2c5a42e40 - __libc_start_main
[INFO] [stderr]     33:     0x5f416917d205 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0b3138759bb3c6918dcf25072970bdb91ba14bde1397c60c837e94a5b61db938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3138759bb3c6918dcf25072970bdb91ba14bde1397c60c837e94a5b61db938", kill_on_drop: false }`
[INFO] [stdout] 0b3138759bb3c6918dcf25072970bdb91ba14bde1397c60c837e94a5b61db938