[INFO] crate fortytwo 42.0.0 is already in cache
[INFO] checking fortytwo-42.0.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate fortytwo 42.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fortytwo 42.0.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fortytwo 42.0.0
[INFO] finished tweaking crates.io crate fortytwo 42.0.0
[INFO] tweaked toml for crates.io crate fortytwo 42.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate fortytwo 42.0.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b628c97efec81e6681c9206606d489cbf9d4b133ffc4bf7af564eefdc4c2b691
[INFO] running `"docker" "start" "-a" "b628c97efec81e6681c9206606d489cbf9d4b133ffc4bf7af564eefdc4c2b691"`
[INFO] [stderr]    Compiling fortytwo v42.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `fortytwo v42.0.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/fortytwo-08f91c02a3cccb97/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at '
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM `MM' VMMMMM
[INFO] [stderr] MMMMMV  MV  MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM  VM  MMMMMM
[INFO] [stderr] MMMMMM  M  mMMMMMMMMMMMMMMMMMMMV'"     "`VMMMMMMMMMMMMMM  MMMA `M  MM  MM
[INFO] [stderr] MM  VM  M  MMMMMMMMMMMMMMMV"                 "VMMMMMMMMM.  'MM  M  M' .MM
[INFO] [stderr] MM.  M  M  MV  VMMMMMMMV'                      "VMMMMMMMMM.  "  V  V .MMM
[INFO] [stderr] MMA  V  M  M' ,MMMMMMV'                          "VMMMMMMMM.  ..     mMMM
[INFO] [stderr] MMMA `     V  MMMMMM'                              `VMMMMMMm  "S"   mMMMM
[INFO] [stderr] MMMM  .,.,   AMMMMV                                 `VMMM"""   :   .MMMMM
[INFO] [stderr] MMMM  "B"   MMMMMV                                    M"      .'  .MMMMMM
[INFO] [stderr] MMMM   :   AV"  V                                     `   .mm.    MMMMMMM
[INFO] [stderr] MMMM.  `.                                              ..MMMMMm   MMMMMMM
[INFO] [stderr] MMMMM.. .  .mMMV  .                                   . VMMMMMMA   VMMMMM
[INFO] [stderr] MMMMMM  AMMMMMM'  *         <^@^>        <==>        .* 'MMMMMMm    MMMMM
[INFO] [stderr] MMMMM'  MMMMMMV  .I                                 .a@. V'"MMMMA    MMMM
[INFO] [stderr] MMMMM   MMMMMM(  a@:.                             .' @@! .   "MMMm    MMM
[INFO] [stderr] MMMM'   MMMV""'  !@a :.                         .';.a@@R ,             MM
[INFO] [stderr] MMMV    MV"   :  :@@@: :.                     .:  a@@@@! ..............mM
[INFO] [stderr] MMM'          .  `@@@@ : `...             ..:' : a@@@@@' MMMMMMMMMMMMMMMM
[INFO] [stderr] MMM  ..........   @@@@@a  :  :'`:`------':  :  a@@@@@@@  MMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMA   `@@@@@@@a  :  :   ::   :  a@@@@@@@@@' :MMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMM.   `@@@@@@@@@@aaA. .;|. .Aaa@@@@@@@@@' .AMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMM.   `@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@   mMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMM.    @@@@@@@@@@@"oOo.oOOo"@@@@@@@'   mMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMm    `@@@@@@@"OOOOOOxOOOOO"@@@V    mMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMA.     `@@@"OOOOOOOOxOOOOO"@'   .AMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMA.     ""V@@AOOOOOOxOOOOO.  .AMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMm.       `OOOOOOOxXOOOo.mMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMAm..   `OOOOOOoxOOOO:MMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMA`OOOOOOOxOOOO:MMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMA`OOOOOOxOOOO;MMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMA`OOOOOOOOO;AMMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMA`OOOOOO;AMMMMMMMMMMMMMMMMMMMMMMMMMMM
[INFO] [stderr] WIZMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMmmmmmmMMMMMMMMMMMMMMMMMMMMMMMMM*MJJ
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]                    88888b   888    88b  88 88  d888b  88
[INFO] [stderr]                    88   88 88 88   888b 88 88 88   `  88
[INFO] [stderr]                    88888P 88   88  88`8b88 88 88      88
[INFO] [stderr]                    88    d8888888b 88 `888 88 88   ,  `"
[INFO] [stderr]                    88    88     8b 88  `88 88  T888P  88
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] It is said that despite its many glaring (and occasionally fatal) inaccuracies,
[INFO] [stderr] the Rust Compiler Version 42 has outsold the Encyclopedia Galactica Compiler Collection
[INFO] [stderr] because it is slightly cheaper,
[INFO] [stderr] and because it has the words 'DON'T PANIC' in large, friendly letters on the cover.
[INFO] [stderr] 
[INFO] [stderr] ', build.rs:20:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x556ac555ec94 - backtrace::backtrace::libunwind::trace::h9e598fcb10d5c4f5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x556ac555ec94 - backtrace::backtrace::trace_unsynchronized::hbfbd58fbb4a2603e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x556ac555ec94 - std::sys_common::backtrace::_print_fmt::hacb596a8013761df
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x556ac555ec94 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha1ba73c9085723eb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x556ac5581abc - core::fmt::write::hb4ac1e8a8c800611
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x556ac555c513 - std::io::Write::write_fmt::ha413e6029f4d499f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x556ac5561235 - std::sys_common::backtrace::_print::h5afa8b3832cd03b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x556ac5561235 - std::sys_common::backtrace::print::h49229e3486b70f83
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x556ac5561235 - std::panicking::default_hook::{{closure}}::hcfefd5f4943f3aa9
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x556ac5560f72 - std::panicking::default_hook::h4c2b6d8d034c53de
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x556ac5561842 - std::panicking::rust_panic_with_hook::hf8cee70c0118d2cc
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x556ac556142b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x556ac556139b - std::panicking::begin_panic_fmt::h58dd034954c7216c
[INFO] [stderr]                                at src/libstd/panicking.rs:373
[INFO] [stderr]   13:     0x556ac5532f40 - build_script_build::main::h1b1fa6424e0fc6d3
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:20
[INFO] [stderr]   14:     0x556ac55330bb - std::rt::lang_start::{{closure}}::h096b1d661d0a0cc9
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x556ac5561c88 - std::rt::lang_start_internal::{{closure}}::h4c4631d379953dd0
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   16:     0x556ac5561c88 - std::panicking::try::do_call::hc26b3db2421dedbb
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   17:     0x556ac5561c88 - std::panicking::try::h4da6835c8705b8a7
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   18:     0x556ac5561c88 - std::panic::catch_unwind::h02aff520273fa6b1
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x556ac5561c88 - std::rt::lang_start_internal::he0572ca212cb5ef4
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   20:     0x556ac5533097 - std::rt::lang_start::hc855e079eea7bd19
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   21:     0x556ac5532faa - main
[INFO] [stderr]   22:     0x7fea41583b97 - __libc_start_main
[INFO] [stderr]   23:     0x556ac553263a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "b628c97efec81e6681c9206606d489cbf9d4b133ffc4bf7af564eefdc4c2b691"`
[INFO] running `"docker" "rm" "-f" "b628c97efec81e6681c9206606d489cbf9d4b133ffc4bf7af564eefdc4c2b691"`
[INFO] [stdout] b628c97efec81e6681c9206606d489cbf9d4b133ffc4bf7af564eefdc4c2b691
