[INFO] cloning repository https://github.com/jostho/flock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jostho/flock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjostho%2Fflock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjostho%2Fflock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12dc4b5c87d16ec7ae378f6d1e4c718cba3c5f46
[INFO] building jostho/flock against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjostho%2Fflock" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jostho/flock on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jostho/flock
[INFO] finished tweaking git repo https://github.com/jostho/flock
[INFO] tweaked toml for git repo https://github.com/jostho/flock written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jostho/flock already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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] 3c3f7901d133d5701d9056990684608a17f9ed4fccc1e5e079caa238fb718b05
[INFO] running `Command { std: "docker" "start" "-a" "3c3f7901d133d5701d9056990684608a17f9ed4fccc1e5e079caa238fb718b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c3f7901d133d5701d9056990684608a17f9ed4fccc1e5e079caa238fb718b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3f7901d133d5701d9056990684608a17f9ed4fccc1e5e079caa238fb718b05", kill_on_drop: false }`
[INFO] [stdout] 3c3f7901d133d5701d9056990684608a17f9ed4fccc1e5e079caa238fb718b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", 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] af5a281c6b793e92fe2f6be4d6a3e786d1b7a0b45a30204dc9e4371d5e225489
[INFO] running `Command { std: "docker" "start" "-a" "af5a281c6b793e92fe2f6be4d6a3e786d1b7a0b45a30204dc9e4371d5e225489", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.10
[INFO] [stderr]    Compiling rocket v0.4.10
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr] error: failed to run custom build command for `rocket v0.4.10`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-c78ec46b1a45985d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [1;31mError:[0m [1mRocket (core) requires a more recent version of rustc.[0m
[INFO] [stderr]   Installed version: [33m1.54.0 (2021-05-08)[0m
[INFO] [stderr]   Minimum required:  [33m1.54.0-nightly (2021-05-18)[0m
[INFO] [stderr]   thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.10/build.rs:34:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e93aa8bf50 - std::backtrace_rs::backtrace::libunwind::trace::hdcf4f90f85129e83
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55e93aa8bf50 - std::backtrace_rs::backtrace::trace_unsynchronized::h2669e30cb82f6732
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e93aa8bf50 - std::sys_common::backtrace::_print_fmt::hfbda19e17f6db318
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e93aa8bf50 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1a8751bf59281272
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55e93aaa981f - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x55e93aa89cd5 - std::io::Write::write_fmt::hd7dd3a1df9b6befb
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/io/mod.rs:1584:15
[INFO] [stderr]      6:     0x55e93aa8db8b - std::sys_common::backtrace::_print::h551e9ec8a9fa8106
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e93aa8db8b - std::sys_common::backtrace::print::ha4b1c5e95fa040b3
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e93aa8db8b - std::panicking::default_hook::{{closure}}::h0b34c9ab7fb9f857
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e93aa8d66d - std::panicking::default_hook::h3067e8318decd17a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e93aa8e13d - std::panicking::rust_panic_with_hook::h81b8facc50f34daa
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55e93aa5d36f - std::panicking::begin_panic::{{closure}}::hdeaa89b0677807a4
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:520:9
[INFO] [stderr]     12:     0x55e93aa5dc38 - std::sys_common::backtrace::__rust_end_short_backtrace::hd99188eb5a41cc60
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e93aa5d2b5 - std::panicking::begin_panic::h9c71b38221d1c4ea
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:519:12
[INFO] [stderr]     14:     0x55e93aa5cc63 - build_script_build::main::hc1584d09f80bdd42
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.10/build.rs:34:13
[INFO] [stderr]     15:     0x55e93aa5de5b - core::ops::function::FnOnce::call_once::h217eb7b062d73a76
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     16:     0x55e93aa5dc7e - std::sys_common::backtrace::__rust_begin_short_backtrace::h4bc2b8e8fa94a4ba
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     17:     0x55e93aa5ce61 - std::rt::lang_start::{{closure}}::hdc600727da08d5fc
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:49:18
[INFO] [stderr]     18:     0x55e93aa8e53a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3b8c329143d7638a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     19:     0x55e93aa8e53a - std::panicking::try::do_call::h4b72c261b4eefc1b
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:379:40
[INFO] [stderr]     20:     0x55e93aa8e53a - std::panicking::try::h703d31b7896cbd49
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:343:19
[INFO] [stderr]     21:     0x55e93aa8e53a - std::panic::catch_unwind::h37cad9b35388a915
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panic.rs:431:14
[INFO] [stderr]     22:     0x55e93aa8e53a - std::rt::lang_start_internal::hab5a8a909af4f90e
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:34:21
[INFO] [stderr]     23:     0x55e93aa5ce40 - std::rt::lang_start::h9b46a588ac79824c
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:48:5
[INFO] [stderr]     24:     0x55e93aa5ce0c - main
[INFO] [stderr]     25:     0x7f2deddcc0b3 - __libc_start_main
[INFO] [stderr]     26:     0x55e93aa5b8ae - _start
[INFO] [stderr]     27:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af5a281c6b793e92fe2f6be4d6a3e786d1b7a0b45a30204dc9e4371d5e225489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5a281c6b793e92fe2f6be4d6a3e786d1b7a0b45a30204dc9e4371d5e225489", kill_on_drop: false }`
[INFO] [stdout] af5a281c6b793e92fe2f6be4d6a3e786d1b7a0b45a30204dc9e4371d5e225489
