[INFO] cloning repository https://github.com/AwesomeQubic/corroded-backdoor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AwesomeQubic/corroded-backdoor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAwesomeQubic%2Fcorroded-backdoor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAwesomeQubic%2Fcorroded-backdoor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88f959754352dd1a07f32c3283e527dd7b6a67a5
[INFO] checking AwesomeQubic/corroded-backdoor against master#8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAwesomeQubic%2Fcorroded-backdoor" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AwesomeQubic/corroded-backdoor
[INFO] finished tweaking git repo https://github.com/AwesomeQubic/corroded-backdoor
[INFO] tweaked toml for git repo https://github.com/AwesomeQubic/corroded-backdoor written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AwesomeQubic/corroded-backdoor on toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AwesomeQubic/corroded-backdoor 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" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-4-tc1/source/cb0/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-4-tc1/source/cb1/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-4-tc1/source/cb1s/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-4-tc1/source/playgound/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded posix-errno v1.0.2
[INFO] [stderr]   Downloaded linux-errno v1.1.0
[INFO] [stderr]   Downloaded linux-syscall v1.2.0
[INFO] [stderr]   Downloaded heapless v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36533da83826ec271d7859f2594813a4cbbefeb40d9b93444a1cdccc44b01df0
[INFO] running `Command { std: "docker" "start" "-a" "36533da83826ec271d7859f2594813a4cbbefeb40d9b93444a1cdccc44b01df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36533da83826ec271d7859f2594813a4cbbefeb40d9b93444a1cdccc44b01df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36533da83826ec271d7859f2594813a4cbbefeb40d9b93444a1cdccc44b01df0", kill_on_drop: false }`
[INFO] [stdout] 36533da83826ec271d7859f2594813a4cbbefeb40d9b93444a1cdccc44b01df0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 773135b75e62742217894cbbf6a31b06a5cccf5892d611ab7624feabe80da25f
[INFO] running `Command { std: "docker" "start" "-a" "773135b75e62742217894cbbf6a31b06a5cccf5892d611ab7624feabe80da25f", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/cb0/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/cb1/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/cb1s/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/playgound/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]     Checking posix-errno v1.0.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.9.2
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking linux-errno v1.1.0
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling cb1 v0.1.0 (/opt/rustwide/workdir/cb1)
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling playgound v0.1.0 (/opt/rustwide/workdir/playgound)
[INFO] [stderr]    Compiling cb0 v0.1.0 (/opt/rustwide/workdir/cb0)
[INFO] [stderr]    Compiling cb1s v0.1.0 (/opt/rustwide/workdir/cb1s)
[INFO] [stderr]     Checking linux-syscall v1.2.0
[INFO] [stderr]     Checking itoa v1.0.17
[INFO] [stdout] warning: unused imports: `null_mut` and `null`
[INFO] [stdout]  --> cb1s/src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::{arch::asm, panic::PanicInfo, ptr::{null, null_mut}};
[INFO] [stdout]   |                                               ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> cb1s/src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / pub fn handler(_: &PanicInfo<'_>) -> ! {
[INFO] [stdout] 25 | |     loop {
[INFO] [stdout] 26 | |         int3();
[INFO] [stdout] 27 | |     }
[INFO] [stdout] 28 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c154a69977bb44fb.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`cb1s`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cb1s` (bin "cb1s" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `null_mut` and `null`
[INFO] [stdout]  --> cb1s/src/main.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::{arch::asm, panic::PanicInfo, ptr::{null, null_mut}};
[INFO] [stdout]   |                                               ^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cb1s` (bin "cb1s") due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: failed to run custom build command for `cb0 v0.1.0 (/opt/rustwide/workdir/cb0)`
[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/cb0-a089b64ea4c21c4d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb0/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb1/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb1s/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/playgound/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: failed to save last-use data
[INFO] [stderr]   This may prevent cargo from accurately tracking what is being used in its global cache. This information is used for automatically removing unused data in the cache.
[INFO] [stderr] 
[INFO] [stderr]   attempt to write a readonly database
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     Error code 8: attempt to write a readonly database
[INFO] [stderr]   error: "/opt/rustwide/rustup-home/toolchains/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/lib/rustlib/src/rust/library/Cargo.lock" does not exist, unable to build with the standard library, try:
[INFO] [stderr]           rustup component add rust-src --toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (248) panicked at cb0/build.rs:24:5:
[INFO] [stderr]   assertion failed: status.success()
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61b524de7d92 - std[537962ca55f41443]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x61b524de7d92 - std[537962ca55f41443]::backtrace_rs::backtrace::trace_unsynchronized::<std[537962ca55f41443]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x61b524de7d92 - std[537962ca55f41443]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x61b524de7d92 - <<std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6c9c9c2c6e9466e2]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x61b524df9b6a - <core[6c9c9c2c6e9466e2]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x61b524df9b6a - core[6c9c9c2c6e9466e2]::fmt::write
[INFO] [stderr]      6:     0x61b524dec616 - std[537962ca55f41443]::io::default_write_fmt::<std[537962ca55f41443]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x61b524dec616 - <std[537962ca55f41443]::sys::stdio::unix::Stderr as std[537962ca55f41443]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x61b524dcc1af - <std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x61b524dcc1af - std[537962ca55f41443]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x61b524de3b11 - std[537962ca55f41443]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x61b524de3ccb - std[537962ca55f41443]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x61b524dcc29a - std[537962ca55f41443]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:691:13
[INFO] [stderr]     13:     0x61b524dc3e99 - std[537962ca55f41443]::sys::backtrace::__rust_end_short_backtrace::<std[537962ca55f41443]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x61b524dccb0d - __rustc[cc0363f037a135f8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x61b524dfa1dc - core[6c9c9c2c6e9466e2]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x61b524dfa1a2 - core[6c9c9c2c6e9466e2]::panicking::panic
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/panicking.rs:150:5
[INFO] [stderr]     17:     0x61b524db1a21 - build_script_build[f739c8b0e726c905]::main
[INFO] [stderr]     18:     0x61b524db4e13 - <fn() as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x61b524db10c6 - std[537962ca55f41443]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x61b524db15a9 - std[537962ca55f41443]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x61b524de2cc6 - <&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x61b524de2cc6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x61b524de2cc6 - std[537962ca55f41443]::panicking::catch_unwind::<i32, &dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x61b524de2cc6 - std[537962ca55f41443]::panic::catch_unwind::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x61b524de2cc6 - std[537962ca55f41443]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x61b524de2cc6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x61b524de2cc6 - std[537962ca55f41443]::panicking::catch_unwind::<isize, std[537962ca55f41443]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x61b524de2cc6 - std[537962ca55f41443]::panic::catch_unwind::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x61b524de2cc6 - std[537962ca55f41443]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x61b524db0821 - std[537962ca55f41443]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x61b524db5175 - main
[INFO] [stderr]     32:     0x771a66c8b1ca - <unknown>
[INFO] [stderr]     33:     0x771a66c8b28b - __libc_start_main
[INFO] [stderr]     34:     0x61b524dafbe5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] error: failed to run custom build command for `playgound v0.1.0 (/opt/rustwide/workdir/playgound)`
[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/playgound-3d2de51d09de5b52/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb0/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb1/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/cb1s/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr]   package:   /opt/rustwide/workdir/playgound/Cargo.toml
[INFO] [stderr]   workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   warning: failed to save last-use data
[INFO] [stderr]   This may prevent cargo from accurately tracking what is being used in its global cache. This information is used for automatically removing unused data in the cache.
[INFO] [stderr] 
[INFO] [stderr]   attempt to write a readonly database
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]     Error code 8: attempt to write a readonly database
[INFO] [stderr]   error: "/opt/rustwide/rustup-home/toolchains/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/lib/rustlib/src/rust/library/Cargo.lock" does not exist, unable to build with the standard library, try:
[INFO] [stderr]           rustup component add rust-src --toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (283) panicked at playgound/build.rs:21:5:
[INFO] [stderr]   assertion failed: status.success()
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e2202e4372 - std[537962ca55f41443]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x55e2202e4372 - std[537962ca55f41443]::backtrace_rs::backtrace::trace_unsynchronized::<std[537962ca55f41443]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x55e2202e4372 - std[537962ca55f41443]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x55e2202e4372 - <<std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6c9c9c2c6e9466e2]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x55e2202f614a - <core[6c9c9c2c6e9466e2]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x55e2202f614a - core[6c9c9c2c6e9466e2]::fmt::write
[INFO] [stderr]      6:     0x55e2202e8bf6 - std[537962ca55f41443]::io::default_write_fmt::<std[537962ca55f41443]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x55e2202e8bf6 - <std[537962ca55f41443]::sys::stdio::unix::Stderr as std[537962ca55f41443]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x55e2202c878f - <std[537962ca55f41443]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x55e2202c878f - std[537962ca55f41443]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x55e2202e00f1 - std[537962ca55f41443]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x55e2202e02ab - std[537962ca55f41443]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x55e2202c887a - std[537962ca55f41443]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:691:13
[INFO] [stderr]     13:     0x55e2202c0479 - std[537962ca55f41443]::sys::backtrace::__rust_end_short_backtrace::<std[537962ca55f41443]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x55e2202c90ed - __rustc[cc0363f037a135f8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x55e2202f67bc - core[6c9c9c2c6e9466e2]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x55e2202f6782 - core[6c9c9c2c6e9466e2]::panicking::panic
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/panicking.rs:150:5
[INFO] [stderr]     17:     0x55e2202ae811 - build_script_build[53a1234a315f12ba]::main
[INFO] [stderr]     18:     0x55e2202b13f3 - <fn() as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x55e2202adeb6 - std[537962ca55f41443]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x55e2202ae399 - std[537962ca55f41443]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x55e2202df2a6 - <&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe as core[6c9c9c2c6e9466e2]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x55e2202df2a6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x55e2202df2a6 - std[537962ca55f41443]::panicking::catch_unwind::<i32, &dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x55e2202df2a6 - std[537962ca55f41443]::panic::catch_unwind::<&dyn core[6c9c9c2c6e9466e2]::ops::function::Fn<(), Output = i32> + core[6c9c9c2c6e9466e2]::marker::Sync + core[6c9c9c2c6e9466e2]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x55e2202df2a6 - std[537962ca55f41443]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x55e2202df2a6 - std[537962ca55f41443]::panicking::catch_unwind::do_call::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x55e2202df2a6 - std[537962ca55f41443]::panicking::catch_unwind::<isize, std[537962ca55f41443]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x55e2202df2a6 - std[537962ca55f41443]::panic::catch_unwind::<std[537962ca55f41443]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x55e2202df2a6 - std[537962ca55f41443]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x55e2202ad611 - std[537962ca55f41443]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x55e2202b1755 - main
[INFO] [stderr]     32:     0x73eb09ae31ca - <unknown>
[INFO] [stderr]     33:     0x73eb09ae328b - __libc_start_main
[INFO] [stderr]     34:     0x55e2202aca05 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "773135b75e62742217894cbbf6a31b06a5cccf5892d611ab7624feabe80da25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "773135b75e62742217894cbbf6a31b06a5cccf5892d611ab7624feabe80da25f", kill_on_drop: false }`
[INFO] [stdout] 773135b75e62742217894cbbf6a31b06a5cccf5892d611ab7624feabe80da25f
