[INFO] cloning repository https://github.com/AdamELFILALI/toyland
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamELFILALI/toyland" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamELFILALI%2Ftoyland", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamELFILALI%2Ftoyland'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34b91c9d40a09037dbce53b198976643aa14f81c
[INFO] checking AdamELFILALI/toyland against master#f5e2df741b4a9820a7579f0c8eccc951706a8782 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamELFILALI%2Ftoyland" "/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/AdamELFILALI/toyland
[INFO] finished tweaking git repo https://github.com/AdamELFILALI/toyland
[INFO] tweaked toml for git repo https://github.com/AdamELFILALI/toyland written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AdamELFILALI/toyland on toolchain f5e2df741b4a9820a7579f0c8eccc951706a8782
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AdamELFILALI/toyland 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" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6c20bcb56d5c24ad0f5ccec5b59662000b50a4add537d9232e9ceee2e338b31
[INFO] running `Command { std: "docker" "start" "-a" "c6c20bcb56d5c24ad0f5ccec5b59662000b50a4add537d9232e9ceee2e338b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6c20bcb56d5c24ad0f5ccec5b59662000b50a4add537d9232e9ceee2e338b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6c20bcb56d5c24ad0f5ccec5b59662000b50a4add537d9232e9ceee2e338b31", kill_on_drop: false }`
[INFO] [stdout] c6c20bcb56d5c24ad0f5ccec5b59662000b50a4add537d9232e9ceee2e338b31
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5de8d56af9c4c8e7e5dececb5d6a69881326a9bba7cef9a55c721e411c84c22f
[INFO] running `Command { std: "docker" "start" "-a" "5de8d56af9c4c8e7e5dececb5d6a69881326a9bba7cef9a55c721e411c84c22f", kill_on_drop: false }`
[INFO] [stderr]    Compiling toyland v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: toyland@0.1.0: your text
[INFO] [stderr] warning: toyland@0.1.0:  Some("./src/hello.rs")
[INFO] [stderr] error: failed to run custom build command for `toyland 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/toyland-fb8578f1c99113d8/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   totototo
[INFO] [stderr]   cargo:warning=your text
[INFO] [stderr]   cargo:warning= Some("./src/hello.rs")
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (52) panicked at build.rs:20:7:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x59486af5d292 - std::backtrace_rs::backtrace::libunwind::trace::h1970e67b2cd270b9
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x59486af5d292 - std::backtrace_rs::backtrace::trace_unsynchronized::hc7b359bfc0d13de8
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x59486af5d292 - std::sys::backtrace::_print_fmt::h701a76b69b3bb3e2
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x59486af5d292 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h43e4263445ba022b
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x59486af6be8f - core::fmt::rt::Argument::fmt::h830247f1adad511f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x59486af6be8f - core::fmt::write::h4c16295a0bd61f3c
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x59486af3afa3 - std::io::default_write_fmt::hfc76503c34f98834
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x59486af3afa3 - std::io::Write::write_fmt::hf11cbaace1ee4980
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x59486af40512 - std::sys::backtrace::BacktraceLock::print::hefa34b6840eb0ead
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x59486af41f8c - std::panicking::default_hook::{{closure}}::h50547d56729ca69d
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x59486af41de6 - std::panicking::default_hook::hfc7171463c93ef10
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x59486af42565 - std::panicking::panic_with_hook::hbb2cef370b951e47
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x59486af423fa - std::panicking::panic_handler::{{closure}}::h661f84bd25f1eb9e
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x59486af40649 - std::sys::backtrace::__rust_end_short_backtrace::hefbe60e7c80a29d4
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x59486af2f83d - __rustc[618a55cd962e06d8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x59486af6f2c0 - core::panicking::panic_fmt::hf8d1e7ccff5afa16
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x59486af6eb46 - core::result::unwrap_failed::hee4b2a904416c97b
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x59486af2e510 - build_script_build::main::h29e18c8bcccfa598
[INFO] [stderr]     18:     0x59486af2ed43 - core::ops::function::FnOnce::call_once::h27c974967a1ad148
[INFO] [stderr]     19:     0x59486af2eb26 - std::sys::backtrace::__rust_begin_short_backtrace::h6e15cec88d875081
[INFO] [stderr]     20:     0x59486af2eaf9 - std::rt::lang_start::{{closure}}::hd22221c58e9366db
[INFO] [stderr]     21:     0x59486af3c570 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hb6a3d32a2695937f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x59486af3c570 - std::panicking::catch_unwind::do_call::h28ef54babab57caa
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:590:40
[INFO] [stderr]     23:     0x59486af3c570 - std::panicking::catch_unwind::h6368f28f042e2c7a
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:553:19
[INFO] [stderr]     24:     0x59486af3c570 - std::panic::catch_unwind::h7e9800de993f7592
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x59486af3c570 - std::rt::lang_start_internal::{{closure}}::h35c3d1911128eb2f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x59486af3c570 - std::panicking::catch_unwind::do_call::h82a719c3d5f2fc6a
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:590:40
[INFO] [stderr]     27:     0x59486af3c570 - std::panicking::catch_unwind::h6d36f0a1939e434c
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:553:19
[INFO] [stderr]     28:     0x59486af3c570 - std::panic::catch_unwind::hd2cf2e89f1490a3e
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x59486af3c570 - std::rt::lang_start_internal::h170d55e82a57c035
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x59486af2eae1 - std::rt::lang_start::h8af8231fcdbdfb12
[INFO] [stderr]     31:     0x59486af2f555 - main
[INFO] [stderr]     32:     0x72bac95d81ca - <unknown>
[INFO] [stderr]     33:     0x72bac95d828b - __libc_start_main
[INFO] [stderr]     34:     0x59486af2e215 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "5de8d56af9c4c8e7e5dececb5d6a69881326a9bba7cef9a55c721e411c84c22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de8d56af9c4c8e7e5dececb5d6a69881326a9bba7cef9a55c721e411c84c22f", kill_on_drop: false }`
[INFO] [stdout] 5de8d56af9c4c8e7e5dececb5d6a69881326a9bba7cef9a55c721e411c84c22f
