[INFO] cloning repository https://github.com/vrmiguel/incipio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vrmiguel/incipio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvrmiguel%2Fincipio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvrmiguel%2Fincipio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e96a42b98182edc2c20ce8178212b4b769b395a1
[INFO] checking vrmiguel/incipio against 165655a2f1981fef27b31c547ad7631979fc5139 for pr-160235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvrmiguel%2Fincipio" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vrmiguel/incipio
[INFO] finished tweaking git repo https://github.com/vrmiguel/incipio
[INFO] tweaked toml for git repo https://github.com/vrmiguel/incipio written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vrmiguel/incipio on toolchain 165655a2f1981fef27b31c547ad7631979fc5139
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vrmiguel/incipio 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" "+165655a2f1981fef27b31c547ad7631979fc5139" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.49
[INFO] [stderr]   Downloaded cstr v0.2.11
[INFO] [stderr]   Downloaded nix v0.26.1
[INFO] [stderr]   Downloaded libc-print v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786
[INFO] running `Command { std: "docker" "start" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786" "/opt/rustwide/cargo-home/bin/cargo" "+165655a2f1981fef27b31c547ad7631979fc5139" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling incipio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `incipio 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/incipio/59bc6a2b20fccd4d/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (196) panicked at build.rs:7:10:
[INFO] [stderr]   Failed to create rand_seed.rs: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x610611ba3a21 - std[3f11799800eb3505]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x610611ba3a21 - std[3f11799800eb3505]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f11799800eb3505]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x610611ba3a21 - std[3f11799800eb3505]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x610611ba3a21 - <<std[3f11799800eb3505]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6a917da1a987e8b5]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x610611bb456a - <core[6a917da1a987e8b5]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x610611bb456a - core[6a917da1a987e8b5]::fmt::write
[INFO] [stderr]      6:     0x610611ba71dc - core[6a917da1a987e8b5]::io::write::default_write_fmt::<std[3f11799800eb3505]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/io/write.rs:402:11
[INFO] [stderr]      7:     0x610611ba71dc - <std[3f11799800eb3505]::sys::stdio::unix::Stderr as core[6a917da1a987e8b5]::io::write::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/io/write.rs:335:13
[INFO] [stderr]      8:     0x610611b8cd96 - <std[3f11799800eb3505]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x610611b8cd96 - std[3f11799800eb3505]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x610611b9fd51 - std[3f11799800eb3505]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x610611b9ff0b - std[3f11799800eb3505]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:815:13
[INFO] [stderr]     12:     0x610611b8ce42 - std[3f11799800eb3505]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:688:13
[INFO] [stderr]     13:     0x610611b86599 - std[3f11799800eb3505]::sys::backtrace::__rust_end_short_backtrace::<std[3f11799800eb3505]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x610611b8d59d - __rustc[5749e0bf75b9b50b]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:679:5
[INFO] [stderr]     15:     0x610611bb4c5c - core[6a917da1a987e8b5]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x610611bb4a32 - core[6a917da1a987e8b5]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/result.rs:1871:5
[INFO] [stderr]     17:     0x610611b781c2 - <core[6a917da1a987e8b5]::result::Result<std[3f11799800eb3505]::fs::File, core[6a917da1a987e8b5]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x610611b78091 - build_script_build[f71adcfb7702ae6a]::main
[INFO] [stderr]     19:     0x610611b793a3 - <fn() as core[6a917da1a987e8b5]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x610611b77ad6 - std[3f11799800eb3505]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x610611b77fa9 - std[3f11799800eb3505]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x610611b9f4a7 - <&dyn core[6a917da1a987e8b5]::ops::function::Fn<(), Output = i32> + core[6a917da1a987e8b5]::panic::unwind_safe::RefUnwindSafe + core[6a917da1a987e8b5]::marker::Sync as core[6a917da1a987e8b5]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x610611b9f4a7 - std[3f11799800eb3505]::panicking::catch_unwind::do_call::<&dyn core[6a917da1a987e8b5]::ops::function::Fn<(), Output = i32> + core[6a917da1a987e8b5]::panic::unwind_safe::RefUnwindSafe + core[6a917da1a987e8b5]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:576:43
[INFO] [stderr]     24:     0x610611b9f4a7 - std[3f11799800eb3505]::panicking::catch_unwind::<i32, &dyn core[6a917da1a987e8b5]::ops::function::Fn<(), Output = i32> + core[6a917da1a987e8b5]::panic::unwind_safe::RefUnwindSafe + core[6a917da1a987e8b5]::marker::Sync>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x610611b9f4a7 - std[3f11799800eb3505]::panic::catch_unwind::<&dyn core[6a917da1a987e8b5]::ops::function::Fn<(), Output = i32> + core[6a917da1a987e8b5]::panic::unwind_safe::RefUnwindSafe + core[6a917da1a987e8b5]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x610611b9f4a7 - std[3f11799800eb3505]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x610611b9f4a7 - std[3f11799800eb3505]::panicking::catch_unwind::do_call::<std[3f11799800eb3505]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:576:43
[INFO] [stderr]     28:     0x610611b9f4a7 - std[3f11799800eb3505]::panicking::catch_unwind::<isize, std[3f11799800eb3505]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x610611b9f4a7 - std[3f11799800eb3505]::panic::catch_unwind::<std[3f11799800eb3505]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x610611b9f4a7 - std[3f11799800eb3505]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/165655a2f1981fef27b31c547ad7631979fc5139/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x610611b77801 - std[3f11799800eb3505]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x610611b798b5 - main
[INFO] [stderr]     33:     0x7ef637d3b601 - <unknown>
[INFO] [stderr]     34:     0x7ef637d3b718 - __libc_start_main
[INFO] [stderr]     35:     0x610611b772c5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786", kill_on_drop: false }`
[INFO] [stdout] 1f65f483b077f8499f557051761480100fff6983fa05c95b7869ee981464e786
