[INFO] cloning repository https://github.com/apolitical/guzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apolitical/guzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapolitical%2Fguzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapolitical%2Fguzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb9d7eac896688d96e85f6842f19aeaf5be9c761
[INFO] checking apolitical/guzzle against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapolitical%2Fguzzle" "/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/apolitical/guzzle on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/apolitical/guzzle
[INFO] finished tweaking git repo https://github.com/apolitical/guzzle
[INFO] tweaked toml for git repo https://github.com/apolitical/guzzle written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/apolitical/guzzle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93db9cc4038700729b259fc9be0ed3b59a83f18405b06bafe99e740ea69957c0
[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" "93db9cc4038700729b259fc9be0ed3b59a83f18405b06bafe99e740ea69957c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93db9cc4038700729b259fc9be0ed3b59a83f18405b06bafe99e740ea69957c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93db9cc4038700729b259fc9be0ed3b59a83f18405b06bafe99e740ea69957c0", kill_on_drop: false }`
[INFO] [stdout] 93db9cc4038700729b259fc9be0ed3b59a83f18405b06bafe99e740ea69957c0
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a79130ea9d25def7ef7d898d7558c88aed6f240cada58e4b821bdc01a43f6db
[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" "0a79130ea9d25def7ef7d898d7558c88aed6f240cada58e4b821bdc01a43f6db", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling guzzle-derive v1.0.0 (/opt/rustwide/workdir/guzzle-derive)
[INFO] [stderr]    Compiling guzzle v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `guzzle v1.0.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/guzzle-df304f72fcd3fe04/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Could not write to README.md: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:25:49
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5625befe8520 - std::backtrace_rs::backtrace::libunwind::trace::hb4de9797f80b7b8c
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5625befe8520 - std::backtrace_rs::backtrace::trace_unsynchronized::h59566d0bd20efff7
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5625befe8520 - std::sys_common::backtrace::_print_fmt::hcfa5ce6be50275d4
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5625befe8520 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd8c307a38b9bab04
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5625bf00020c - core::fmt::write::h3868db8542c90941
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/fmt/mod.rs:1096:17
[INFO] [stderr]      5:     0x5625befe6562 - std::io::Write::write_fmt::hab90295d5a0f197d
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/io/mod.rs:1568:15
[INFO] [stderr]      6:     0x5625befea475 - std::sys_common::backtrace::_print::h19224910b8700cf1
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5625befea475 - std::sys_common::backtrace::print::h25dedfa68c5fb84a
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5625befea475 - std::panicking::default_hook::{{closure}}::h12c5765653a72a42
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5625befe9f23 - std::panicking::default_hook::he65cee71c4209f0c
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5625befeac11 - std::panicking::rust_panic_with_hook::h01a674d863fe0d8a
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5625befea757 - std::panicking::begin_panic_handler::{{closure}}::h9b9fecf185178864
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5625befe89bc - std::sys_common::backtrace::__rust_end_short_backtrace::h57be46a42dc7f24b
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5625befea6b9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x5625befff5e1 - core::panicking::panic_fmt::h20225113c4a2f8fd
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5625befff403 - core::option::expect_none_failed::hc6d6d4cea4fdc285
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/option.rs:1300:5
[INFO] [stderr]     16:     0x5625bee05744 - core::result::Result<T,E>::expect::hf7e3a4821146614b
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x5625bee04a03 - build_script_build::create_readme::h7e42a9ceeccc54c8
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:25:5
[INFO] [stderr]     18:     0x5625bee04c09 - build_script_build::main::h58c6e010d18ef14f
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:30:5
[INFO] [stderr]     19:     0x5625bee02edb - core::ops::function::FnOnce::call_once::h52701a21427db2d7
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x5625bee03cae - std::sys_common::backtrace::__rust_begin_short_backtrace::h591bb5cc01f80675
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x5625bee02cf1 - std::rt::lang_start::{{closure}}::hcc6343c0734f3135
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:66:18
[INFO] [stderr]     22:     0x5625befeb037 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2c4fd7d4128112a8
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x5625befeb037 - std::panicking::try::do_call::h41fb7dbbbe7bece6
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x5625befeb037 - std::panicking::try::hd38008ccba72bce1
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x5625befeb037 - std::panic::catch_unwind::h057e765cd60f2d13
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panic.rs:431:14
[INFO] [stderr]     26:     0x5625befeb037 - std::rt::lang_start_internal::hdb9d0b9d2cdcda8b
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:51:25
[INFO] [stderr]     27:     0x5625bee02cc7 - std::rt::lang_start::h0d01a311326e8121
[INFO] [stderr]                                  at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:65:5
[INFO] [stderr]     28:     0x5625bee04cca - main
[INFO] [stderr]     29:     0x7fb6aceba0b3 - __libc_start_main
[INFO] [stderr]     30:     0x5625bee010ae - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0a79130ea9d25def7ef7d898d7558c88aed6f240cada58e4b821bdc01a43f6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a79130ea9d25def7ef7d898d7558c88aed6f240cada58e4b821bdc01a43f6db", kill_on_drop: false }`
[INFO] [stdout] 0a79130ea9d25def7ef7d898d7558c88aed6f240cada58e4b821bdc01a43f6db