[INFO] cloning repository https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrirambalaji%2Fresolving-rust-symbols-learning-linkers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrirambalaji%2Fresolving-rust-symbols-learning-linkers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19454e10748aed5a53ed6affc9bec399f96844dc
[INFO] checking shrirambalaji/resolving-rust-symbols-learning-linkers against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrirambalaji%2Fresolving-rust-symbols-learning-linkers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers
[INFO] finished tweaking git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers
[INFO] tweaked toml for git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking shrirambalaji/resolving-rust-symbols-learning-linkers against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrirambalaji%2Fresolving-rust-symbols-learning-linkers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers
[INFO] finished tweaking git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers
[INFO] tweaked toml for git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shrirambalaji/resolving-rust-symbols-learning-linkers 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" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a40221c3b9e96dfabded1cfbc0fd455b9a3a61104b8cc0a2983dead40b2d88a9
[INFO] running `Command { std: "docker" "start" "-a" "a40221c3b9e96dfabded1cfbc0fd455b9a3a61104b8cc0a2983dead40b2d88a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40221c3b9e96dfabded1cfbc0fd455b9a3a61104b8cc0a2983dead40b2d88a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40221c3b9e96dfabded1cfbc0fd455b9a3a61104b8cc0a2983dead40b2d88a9", kill_on_drop: false }`
[INFO] [stdout] a40221c3b9e96dfabded1cfbc0fd455b9a3a61104b8cc0a2983dead40b2d88a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc2ed2082f52131a2667ba3209039e150a58df6a75b56b6f794ba3db62471570
[INFO] running `Command { std: "docker" "start" "-a" "cc2ed2082f52131a2667ba3209039e150a58df6a75b56b6f794ba3db62471570", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-linkers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `learning-linkers 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/learning-linkers-4a436fdbf7a7d2bc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=src/foo.rs
[INFO] [stderr]   cargo:rerun-if-changed=src/bar.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (53) panicked at build.rs:10:43:
[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:     0x5b21e96f0372 - std::backtrace_rs::backtrace::libunwind::trace::hdb3ed30651312282
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5b21e96f0372 - std::backtrace_rs::backtrace::trace_unsynchronized::hde3adb54e5f76a60
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5b21e96f0372 - std::sys::backtrace::_print_fmt::h16ecdc60491dbc4c
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5b21e96f0372 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h9b68c35c911b4a8b
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5b21e96ff037 - core::fmt::rt::Argument::fmt::ha5334817687b39e5
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5b21e96ff037 - core::fmt::write::h3a2ae8f505245c6f
[INFO] [stderr]      6:     0x5b21e96c7a56 - std::io::default_write_fmt::h8d35727b9ad5cf41
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5b21e96c7a56 - std::io::Write::write_fmt::h57e91c819b4d3fa2
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5b21e96d1eb1 - std::sys::backtrace::BacktraceLock::print::hf655ec5b80ba8cba
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5b21e96d1eb1 - std::panicking::default_hook::{{closure}}::h84084df1035d5ff9
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:293:27
[INFO] [stderr]     10:     0x5b21e96d1cd6 - std::panicking::default_hook::hc0a356f7ef7238c0
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:320:9
[INFO] [stderr]     11:     0x5b21e96d23bb - std::panicking::panic_with_hook::hbeca02445862c4a4
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:826:13
[INFO] [stderr]     12:     0x5b21e96d2238 - std::panicking::panic_handler::{{closure}}::h098afa7f29494fe1
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:699:13
[INFO] [stderr]     13:     0x5b21e96d0889 - std::sys::backtrace::__rust_end_short_backtrace::he3eee89687daac32
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5b21e96bc55d - __rustc[41ad741fe25ca8a7]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:690:5
[INFO] [stderr]     15:     0x5b21e970218c - core::panicking::panic_fmt::hd1732c0e674bc4a6
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5b21e9701b42 - core::result::unwrap_failed::he101f3ce30a19a63
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5b21e96b9df4 - build_script_build[a9efd2f4ae8fd679]::main
[INFO] [stderr]     18:     0x5b21e96bbf03 - <fn() as core[cf35aca9fc487555]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x5b21e96b98d6 - std[4122f4b66b2d403f]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x5b21e96b9ce9 - std[4122f4b66b2d403f]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x5b21e96c929a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha1e3ee6ca97360d8
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x5b21e96c929a - std::panicking::catch_unwind::do_call::h4b2208ab699651a3
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:582:40
[INFO] [stderr]     23:     0x5b21e96c929a - std::panicking::catch_unwind::hfbe7255c6738319d
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:545:19
[INFO] [stderr]     24:     0x5b21e96c929a - std::panic::catch_unwind::h30cfcbbfcbbb4795
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x5b21e96c929a - std::rt::lang_start_internal::{{closure}}::hc4853994038af7c5
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5b21e96c929a - std::panicking::catch_unwind::do_call::h7bd6ec34f551ec4f
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:582:40
[INFO] [stderr]     27:     0x5b21e96c929a - std::panicking::catch_unwind::h05ef9dec0e5bacb8
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panicking.rs:545:19
[INFO] [stderr]     28:     0x5b21e96c929a - std::panic::catch_unwind::h2dd441b1f3a9774d
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x5b21e96c929a - std::rt::lang_start_internal::h6f695b414cf6bf4b
[INFO] [stderr]                                  at /rustc/d83b14207998f47b18a34e930157ac0d7c18b16e/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5b21e96b9101 - std[4122f4b66b2d403f]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x5b21e96bc235 - main
[INFO] [stderr]     32:     0x7f2cc86451ca - <unknown>
[INFO] [stderr]     33:     0x7f2cc864528b - __libc_start_main
[INFO] [stderr]     34:     0x5b21e96b86e5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "cc2ed2082f52131a2667ba3209039e150a58df6a75b56b6f794ba3db62471570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2ed2082f52131a2667ba3209039e150a58df6a75b56b6f794ba3db62471570", kill_on_drop: false }`
[INFO] [stdout] cc2ed2082f52131a2667ba3209039e150a58df6a75b56b6f794ba3db62471570