[INFO] fetching crate plexor-codec-capnp 0.1.0-alpha.2...
[INFO] checking plexor-codec-capnp-0.1.0-alpha.2 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate plexor-codec-capnp 0.1.0-alpha.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate plexor-codec-capnp 0.1.0-alpha.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate plexor-codec-capnp 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate plexor-codec-capnp 0.1.0-alpha.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate plexor-codec-capnp 0.1.0-alpha.2 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate plexor-codec-capnp 0.1.0-alpha.2 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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61ccfe15a5f51fa769b0dc49af21f077124af8ecbffde7136908f5b63daa57f6
[INFO] running `Command { std: "docker" "start" "-a" "61ccfe15a5f51fa769b0dc49af21f077124af8ecbffde7136908f5b63daa57f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61ccfe15a5f51fa769b0dc49af21f077124af8ecbffde7136908f5b63daa57f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61ccfe15a5f51fa769b0dc49af21f077124af8ecbffde7136908f5b63daa57f6", kill_on_drop: false }`
[INFO] [stdout] 61ccfe15a5f51fa769b0dc49af21f077124af8ecbffde7136908f5b63daa57f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f672dacfd24201e7eb10bbd69f0275c92d02fd6d5b28bfbdbdd07539fc85a0c6
[INFO] running `Command { std: "docker" "start" "-a" "f672dacfd24201e7eb10bbd69f0275c92d02fd6d5b28bfbdbdd07539fc85a0c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling portable-atomic v1.13.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling capnp v0.20.6
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking tagptr v0.2.0
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking async-lock v3.4.2
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking socket2 v0.6.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling capnpc v0.20.1
[INFO] [stderr]    Compiling plexor-codec-capnp v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr] [FMTARGS] {"crate":"build_script_build","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0}
[INFO] [stderr] error: failed to run custom build command for `plexor-codec-capnp v0.1.0-alpha.2 (/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/plexor-codec-capnp-6849cd89487898ec/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=schema/example.capnp
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   could not open file "src/schema/example_capnp.rs" for writing: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (408) panicked at build.rs:15:14:
[INFO] [stderr]   compiling schema: Error { kind: Failed, extra: "Error while trying to execute `capnp compile`: Failed: Read-only file system (os error 30)." }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x64eecc7f2aea - std[843dc0b1bda91b1f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x64eecc7f2aea - std[843dc0b1bda91b1f]::backtrace_rs::backtrace::trace_unsynchronized::<std[843dc0b1bda91b1f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x64eecc7f2aea - std[843dc0b1bda91b1f]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x64eecc7f2aea - <<std[843dc0b1bda91b1f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[dce7ba9de88d7a1a]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x64eecc8065ea - <core[dce7ba9de88d7a1a]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x64eecc8065ea - core[dce7ba9de88d7a1a]::fmt::write
[INFO] [stderr]      6:     0x64eecc7f7412 - std[843dc0b1bda91b1f]::io::default_write_fmt::<std[843dc0b1bda91b1f]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x64eecc7f7412 - <std[843dc0b1bda91b1f]::sys::stdio::unix::Stderr as std[843dc0b1bda91b1f]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x64eecc7d539f - <std[843dc0b1bda91b1f]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x64eecc7d539f - std[843dc0b1bda91b1f]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x64eecc7ede91 - std[843dc0b1bda91b1f]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x64eecc7ee04b - std[843dc0b1bda91b1f]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x64eecc7d5458 - std[843dc0b1bda91b1f]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x64eecc7ca499 - std[843dc0b1bda91b1f]::sys::backtrace::__rust_end_short_backtrace::<std[843dc0b1bda91b1f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x64eecc7d5dbd - __rustc[e785788a2a4cee43]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x64eecc806d3c - core[dce7ba9de88d7a1a]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x64eecc806ab2 - core[dce7ba9de88d7a1a]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x64eecc79edf9 - <core[dce7ba9de88d7a1a]::result::Result<(), capnp[86d47d8a32552805]::Error>>::expect
[INFO] [stderr]     18:     0x64eecc71751d - build_script_build[984703b0602b3736]::main
[INFO] [stderr]     19:     0x64eecc7176b3 - <fn() as core[dce7ba9de88d7a1a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x64eecc717416 - std[843dc0b1bda91b1f]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x64eecc717429 - std[843dc0b1bda91b1f]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x64eecc7ed0d4 - <&dyn core[dce7ba9de88d7a1a]::ops::function::Fn<(), Output = i32> + core[dce7ba9de88d7a1a]::panic::unwind_safe::RefUnwindSafe + core[dce7ba9de88d7a1a]::marker::Sync as core[dce7ba9de88d7a1a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panicking::catch_unwind::do_call::<&dyn core[dce7ba9de88d7a1a]::ops::function::Fn<(), Output = i32> + core[dce7ba9de88d7a1a]::panic::unwind_safe::RefUnwindSafe + core[dce7ba9de88d7a1a]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panicking::catch_unwind::<i32, &dyn core[dce7ba9de88d7a1a]::ops::function::Fn<(), Output = i32> + core[dce7ba9de88d7a1a]::panic::unwind_safe::RefUnwindSafe + core[dce7ba9de88d7a1a]::marker::Sync>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panic::catch_unwind::<&dyn core[dce7ba9de88d7a1a]::ops::function::Fn<(), Output = i32> + core[dce7ba9de88d7a1a]::panic::unwind_safe::RefUnwindSafe + core[dce7ba9de88d7a1a]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panicking::catch_unwind::do_call::<std[843dc0b1bda91b1f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panicking::catch_unwind::<isize, std[843dc0b1bda91b1f]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::panic::catch_unwind::<std[843dc0b1bda91b1f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x64eecc7ed0d4 - std[843dc0b1bda91b1f]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/1463461488056994d1b84e8b752e7c11c7fae7aa/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x64eecc717251 - std[843dc0b1bda91b1f]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x64eecc717715 - main
[INFO] [stderr]     33:     0x7357eb79b1ca - <unknown>
[INFO] [stderr]     34:     0x7357eb79b28b - __libc_start_main
[INFO] [stderr]     35:     0x64eecc716ff5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f672dacfd24201e7eb10bbd69f0275c92d02fd6d5b28bfbdbdd07539fc85a0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f672dacfd24201e7eb10bbd69f0275c92d02fd6d5b28bfbdbdd07539fc85a0c6", kill_on_drop: false }`
[INFO] [stdout] f672dacfd24201e7eb10bbd69f0275c92d02fd6d5b28bfbdbdd07539fc85a0c6