[INFO] cloning repository https://github.com/Stratus51/codingame-fall-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stratus51/codingame-fall-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Fcodingame-fall-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Fcodingame-fall-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69cfbfad555e6f9a07785b715e56e0a0c2196611
[INFO] checking Stratus51/codingame-fall-2020 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Fcodingame-fall-2020" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stratus51/codingame-fall-2020 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Stratus51/codingame-fall-2020
[INFO] finished tweaking git repo https://github.com/Stratus51/codingame-fall-2020
[INFO] tweaked toml for git repo https://github.com/Stratus51/codingame-fall-2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Stratus51/codingame-fall-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65a13c8dc64209f35e7ac620c4522393309fb41b24d340d5e1b82f08a39db6ef
[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" "65a13c8dc64209f35e7ac620c4522393309fb41b24d340d5e1b82f08a39db6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65a13c8dc64209f35e7ac620c4522393309fb41b24d340d5e1b82f08a39db6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a13c8dc64209f35e7ac620c4522393309fb41b24d340d5e1b82f08a39db6ef", kill_on_drop: false }`
[INFO] [stdout] 65a13c8dc64209f35e7ac620c4522393309fb41b24d340d5e1b82f08a39db6ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75a1ab244d79e177d258f4126a8947bbc76b0989e348d9394ff6f4159aaf128d
[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" "75a1ab244d79e177d258f4126a8947bbc76b0989e348d9394ff6f4159aaf128d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling rustsourcebundler v0.7.0 (https://github.com/lpenz/rust-sourcebundler#f214301d)
[INFO] [stderr]    Compiling codingames_fall_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `codingames_fall_2020 v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/codingames_fall_2020-9305e2f45ee4fbb0/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'error creating full.rs: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/git/checkouts/rust-sourcebundler-e2bf6c123a12e416/f214301/src/lib.rs:57:57
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55ab4f665ba0 - std::backtrace_rs::backtrace::libunwind::trace::hdcf4f90f85129e83
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55ab4f665ba0 - std::backtrace_rs::backtrace::trace_unsynchronized::h2669e30cb82f6732
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55ab4f665ba0 - std::sys_common::backtrace::_print_fmt::hfbda19e17f6db318
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55ab4f665ba0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1a8751bf59281272
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55ab4f68056f - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x55ab4f6642c5 - std::io::Write::write_fmt::hd7dd3a1df9b6befb
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/io/mod.rs:1584:15
[INFO] [stderr]      6:     0x55ab4f667a0b - std::sys_common::backtrace::_print::h551e9ec8a9fa8106
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55ab4f667a0b - std::sys_common::backtrace::print::ha4b1c5e95fa040b3
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55ab4f667a0b - std::panicking::default_hook::{{closure}}::h0b34c9ab7fb9f857
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55ab4f6674ed - std::panicking::default_hook::h3067e8318decd17a
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55ab4f667fbd - std::panicking::rust_panic_with_hook::h81b8facc50f34daa
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55ab4f667bb7 - std::panicking::begin_panic_handler::{{closure}}::ha376ab85d95a000e
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55ab4f66605c - std::sys_common::backtrace::__rust_end_short_backtrace::h6795c8afdd1a77e6
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55ab4f667b19 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55ab4f4e54e1 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55ab4f4e5573 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55ab4f4f059c - core::result::Result<T,E>::expect::hf8fb1933bc2ac6ae
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x55ab4f4e9d40 - rustsourcebundler::Bundler::run::hd5f204cc178aeda9
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/git/checkouts/rust-sourcebundler-e2bf6c123a12e416/f214301/src/lib.rs:57:21
[INFO] [stderr]     18:     0x55ab4f4e6168 - build_script_build::main::h343426bd74c38f5b
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:10:5
[INFO] [stderr]     19:     0x55ab4f4e5d0b - core::ops::function::FnOnce::call_once::h3e8011000f6532ca
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55ab4f4e5e5e - std::sys_common::backtrace::__rust_begin_short_backtrace::h7327cf265ba0ea98
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55ab4f4e60c1 - std::rt::lang_start::{{closure}}::h18523d4facb5adb6
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/rt.rs:49:18
[INFO] [stderr]     22:     0x55ab4f6683ba - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3b8c329143d7638a
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55ab4f6683ba - std::panicking::try::do_call::h4b72c261b4eefc1b
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x55ab4f6683ba - std::panicking::try::h703d31b7896cbd49
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x55ab4f6683ba - std::panic::catch_unwind::h37cad9b35388a915
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/panic.rs:431:14
[INFO] [stderr]     26:     0x55ab4f6683ba - std::rt::lang_start_internal::hab5a8a909af4f90e
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/rt.rs:34:21
[INFO] [stderr]     27:     0x55ab4f4e60a0 - std::rt::lang_start::h4474818296a10e09
[INFO] [stderr]                                  at /rustc/50e1dc1536264ab71c0850f346b12309477f29f7/library/std/src/rt.rs:48:5
[INFO] [stderr]     28:     0x55ab4f4e61cc - main
[INFO] [stderr]     29:     0x7fb4c18070b3 - __libc_start_main
[INFO] [stderr]     30:     0x55ab4f4e5c1e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "75a1ab244d79e177d258f4126a8947bbc76b0989e348d9394ff6f4159aaf128d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a1ab244d79e177d258f4126a8947bbc76b0989e348d9394ff6f4159aaf128d", kill_on_drop: false }`
[INFO] [stdout] 75a1ab244d79e177d258f4126a8947bbc76b0989e348d9394ff6f4159aaf128d