[INFO] fetching crate fortytwo 42.0.0...
[INFO] testing fortytwo-42.0.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate fortytwo 42.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fortytwo 42.0.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-1/source/Cargo.toml
[INFO] crate crates.io crate fortytwo 42.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 434f17a3cc9bca5bb753445fb9114259dcb69e8e5d83e7376d1a8041619aa413
[INFO] running `Command { std: "docker" "start" "-a" "434f17a3cc9bca5bb753445fb9114259dcb69e8e5d83e7376d1a8041619aa413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "434f17a3cc9bca5bb753445fb9114259dcb69e8e5d83e7376d1a8041619aa413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "434f17a3cc9bca5bb753445fb9114259dcb69e8e5d83e7376d1a8041619aa413", kill_on_drop: false }`
[INFO] [stdout] 434f17a3cc9bca5bb753445fb9114259dcb69e8e5d83e7376d1a8041619aa413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10005044af7ee840d26b611ea59d8ab2d0b8a935dc3ff92f92691e2de2b386a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10005044af7ee840d26b611ea59d8ab2d0b8a935dc3ff92f92691e2de2b386a4", kill_on_drop: false }`
[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-2b8e3fc602dedb7b/build-script-build` (exit status: 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:     0x55b88b501bd0 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55b88b501bd0 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55b88b501bd0 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55b88b501bd0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55b88b51ecbc - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55b88b4ffb95 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55b88b50386b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55b88b50386b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55b88b50386b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55b88b503341 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55b88b503f34 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55b88b503a17 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55b88b5020cc - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55b88b503979 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55b88b4cebcb - std::panicking::begin_panic_fmt::h5479575e112541f8
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:457:5
[INFO] [stderr]     15:     0x55b88b4d0377 - build_script_build::main::h327419a61f36a9d7
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:20:9
[INFO] [stderr]     16:     0x55b88b4cfbab - core::ops::function::FnOnce::call_once::h8d9d6c676a198dac
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     17:     0x55b88b4d03de - std::sys_common::backtrace::__rust_begin_short_backtrace::h3703eb51f5e571f2
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     18:     0x55b88b4cfd41 - std::rt::lang_start::{{closure}}::h411410d8af85cdc8
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     19:     0x55b88b504439 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     20:     0x55b88b504439 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     21:     0x55b88b504439 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     22:     0x55b88b504439 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     23:     0x55b88b504439 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     24:     0x55b88b4cfd20 - std::rt::lang_start::hf9f2831c92e73fa9
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     25:     0x55b88b4d03ac - main
[INFO] [stderr]     26:     0x7f51cad240b3 - __libc_start_main
[INFO] [stderr]     27:     0x55b88b4cf96e - _start
[INFO] [stderr]     28:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "10005044af7ee840d26b611ea59d8ab2d0b8a935dc3ff92f92691e2de2b386a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10005044af7ee840d26b611ea59d8ab2d0b8a935dc3ff92f92691e2de2b386a4", kill_on_drop: false }`
[INFO] [stdout] 10005044af7ee840d26b611ea59d8ab2d0b8a935dc3ff92f92691e2de2b386a4
