[INFO] cloning repository https://github.com/realaravinth/cache-buster
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realaravinth/cache-buster" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealaravinth%2Fcache-buster", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealaravinth%2Fcache-buster'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 874dec8180613b6dc654f82c6ef2f6660ec974e6
[INFO] checking realaravinth/cache-buster against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealaravinth%2Fcache-buster" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/realaravinth/cache-buster on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/realaravinth/cache-buster
[INFO] finished tweaking git repo https://github.com/realaravinth/cache-buster
[INFO] tweaked toml for git repo https://github.com/realaravinth/cache-buster written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/realaravinth/cache-buster already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d49c0b5a2cb6f935bb0c104d563b0349dd7f7f067491ba7a0cf7815b93c8f3e7
[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" "d49c0b5a2cb6f935bb0c104d563b0349dd7f7f067491ba7a0cf7815b93c8f3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d49c0b5a2cb6f935bb0c104d563b0349dd7f7f067491ba7a0cf7815b93c8f3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d49c0b5a2cb6f935bb0c104d563b0349dd7f7f067491ba7a0cf7815b93c8f3e7", kill_on_drop: false }`
[INFO] [stdout] d49c0b5a2cb6f935bb0c104d563b0349dd7f7f067491ba7a0cf7815b93c8f3e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 420ee93f2e36cb5a2d9061417100ee710287ad4922bd3f405288fc9a456534e6
[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" "420ee93f2e36cb5a2d9061417100ee710287ad4922bd3f405288fc9a456534e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling darling_core v0.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling darling_macro v0.12.2
[INFO] [stderr]    Compiling darling v0.12.2
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]    Compiling derive_builder v0.10.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking cache-buster v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling actix-example v0.1.0 (/opt/rustwide/workdir/actix-example)
[INFO] [stderr] error: failed to run custom build command for `actix-example v0.1.0 (/opt/rustwide/workdir/actix-example)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/actix-example-ba43b9e2b83c36fb/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/processor.rs:80:38
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e97f90dc70 - std::backtrace_rs::backtrace::libunwind::trace::h247d9dc800afe0ad
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55e97f90dc70 - std::backtrace_rs::backtrace::trace_unsynchronized::h9a4153306adf486c
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e97f90dc70 - std::sys_common::backtrace::_print_fmt::h1ac8daa5000ee24c
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e97f90dc70 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h22a8e55d2cc5363a
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55e97f929b4f - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x55e97f90bb45 - std::io::Write::write_fmt::h441a47830651073b
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/io/mod.rs:1580:15
[INFO] [stderr]      6:     0x55e97f90fbeb - std::sys_common::backtrace::_print::hd1e0ee1c195f9f05
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e97f90fbeb - std::sys_common::backtrace::print::h7d1098def5c25d20
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e97f90fbeb - std::panicking::default_hook::{{closure}}::h484b8b15967e42c8
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e97f90f6cd - std::panicking::default_hook::h82c79ca49716b79d
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e97f91019d - std::panicking::rust_panic_with_hook::h6df253a3c973d6b6
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55e97f90fd97 - std::panicking::begin_panic_handler::{{closure}}::hc6a4120674935ea3
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55e97f90e12c - std::sys_common::backtrace::__rust_end_short_backtrace::h9b5f057c8351b0b1
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e97f90fcf9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55e97f85efb1 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55e97f85f043 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55e97f8610de - core::result::Result<T,E>::unwrap::h762a9cf9914594a8
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x55e97f86a8b7 - cache_buster::processor::Buster::init::h1ddb549b02d2df92
[INFO] [stderr]                                  at /opt/rustwide/workdir/src/processor.rs:80:9
[INFO] [stderr]     18:     0x55e97f86abe4 - cache_buster::processor::Buster::process::h7058269f54267492
[INFO] [stderr]                                  at /opt/rustwide/workdir/src/processor.rs:100:9
[INFO] [stderr]     19:     0x55e97f860739 - build_script_build::main::h698188dd40a62e55
[INFO] [stderr]                                  at /opt/rustwide/workdir/actix-example/build.rs:20:5
[INFO] [stderr]     20:     0x55e97f85ffbb - core::ops::function::FnOnce::call_once::h985c0260af87c404
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     21:     0x55e97f85fede - std::sys_common::backtrace::__rust_begin_short_backtrace::hde134211702f4e6e
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     22:     0x55e97f860491 - std::rt::lang_start::{{closure}}::hebd98b990da3319b
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/rt.rs:66:18
[INFO] [stderr]     23:     0x55e97f91059a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h98fbc5823393ca6f
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     24:     0x55e97f91059a - std::panicking::try::do_call::h210d0709dd1d5fd6
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:379:40
[INFO] [stderr]     25:     0x55e97f91059a - std::panicking::try::hc60c2c01c5cf7473
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panicking.rs:343:19
[INFO] [stderr]     26:     0x55e97f91059a - std::panic::catch_unwind::h7480a56877b30ca9
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/panic.rs:431:14
[INFO] [stderr]     27:     0x55e97f91059a - std::rt::lang_start_internal::he77194431b0ee4a2
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/rt.rs:51:25
[INFO] [stderr]     28:     0x55e97f860470 - std::rt::lang_start::h5abc432e716ef362
[INFO] [stderr]                                  at /rustc/a836d9b6413d9d593be6c09463ff8c4c70e56599/library/std/src/rt.rs:65:5
[INFO] [stderr]     29:     0x55e97f86085c - main
[INFO] [stderr]     30:     0x7f860cfa90b3 - __libc_start_main
[INFO] [stderr]     31:     0x55e97f85f6ae - _start
[INFO] [stderr]     32:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "420ee93f2e36cb5a2d9061417100ee710287ad4922bd3f405288fc9a456534e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420ee93f2e36cb5a2d9061417100ee710287ad4922bd3f405288fc9a456534e6", kill_on_drop: false }`
[INFO] [stdout] 420ee93f2e36cb5a2d9061417100ee710287ad4922bd3f405288fc9a456534e6