[INFO] fetching crate stampr 0.1.2...
[INFO] checking stampr-0.1.2 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate stampr 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate stampr 0.1.2 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stampr 0.1.2
[INFO] finished tweaking crates.io crate stampr 0.1.2
[INFO] tweaked toml for crates.io crate stampr 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate stampr 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6957ee59e6af401554718900ba71c00e53571aa8d6c27e426008b7b29064d35b
[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" "6957ee59e6af401554718900ba71c00e53571aa8d6c27e426008b7b29064d35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6957ee59e6af401554718900ba71c00e53571aa8d6c27e426008b7b29064d35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6957ee59e6af401554718900ba71c00e53571aa8d6c27e426008b7b29064d35b", kill_on_drop: false }`
[INFO] [stdout] 6957ee59e6af401554718900ba71c00e53571aa8d6c27e426008b7b29064d35b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--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] a4fddedcf1bf871a55827453bc8c1a072567dd777cbcffc4d8f6138ab3be19c0
[INFO] running `Command { std: "docker" "start" "-a" "a4fddedcf1bf871a55827453bc8c1a072567dd777cbcffc4d8f6138ab3be19c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.15
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking enquote v1.0.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking serde_yaml v0.8.12
[INFO] [stderr]    Compiling jsonnet-sys v0.6.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr] error: failed to run custom build command for `jsonnet-sys v0.6.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/jsonnet-sys-45274f46761144cc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   embedding: "jsonnet/stdlib/std.jsonnet" -> "jsonnet/core/std.jsonnet.h"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   fatal: not a git repository (or any parent up to mount point /opt/rustwide)
[INFO] [stderr]   Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/jsonnet-sys-0.6.0/build.rs:28:47
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5582598d0810 - std::backtrace_rs::backtrace::libunwind::trace::hec7eaac9435d3512
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5582598d0810 - std::backtrace_rs::backtrace::trace_unsynchronized::h42791b8fa12b7daa
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5582598d0810 - std::sys_common::backtrace::_print_fmt::h3da3ebe04fb665a8
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5582598d0810 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he40bcdde3c4491cd
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5582598f00cf - core::fmt::write::h2c729149c08098ab
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x5582598cd365 - std::io::Write::write_fmt::h28e0f2f58b8d7b7e
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/io/mod.rs:1580:15
[INFO] [stderr]      6:     0x5582598d269b - std::sys_common::backtrace::_print::h7f0223b1e3d898fc
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5582598d269b - std::sys_common::backtrace::print::h58edd634a14c2d4c
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5582598d269b - std::panicking::default_hook::{{closure}}::h71657a7591430164
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5582598d217d - std::panicking::default_hook::hcdf4eb5db072c85b
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5582598d2c4d - std::panicking::rust_panic_with_hook::hfb91e961ffb5b8e0
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5582598d2847 - std::panicking::begin_panic_handler::{{closure}}::h984d540e84311150
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5582598d0cac - std::sys_common::backtrace::__rust_end_short_backtrace::h32354258ff2aecd1
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5582598d27a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x558259880141 - core::panicking::panic_fmt::he3827412471ccbb1
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5582598801d3 - core::result::unwrap_failed::h6e66654d198da7bd
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55825988234a - core::result::Result<T,E>::unwrap::hd95d642b11b4639b
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x55825988111c - build_script_build::main::hc80f0e85de49a9b8
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/jsonnet-sys-0.6.0/build.rs:28:25
[INFO] [stderr]     18:     0x558259881d5b - core::ops::function::FnOnce::call_once::h18594614e3bea273
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x558259881c9e - std::sys_common::backtrace::__rust_begin_short_backtrace::hdf3dfe42ff5dd1dd
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x558259882561 - std::rt::lang_start::{{closure}}::h9bfb593e9ce64779
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5582598d304a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd5953dadf0bc8f54
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5582598d304a - std::panicking::try::do_call::h23b369f1996fb7d4
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5582598d304a - std::panicking::try::he017ee9ed6bce192
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5582598d304a - std::panic::catch_unwind::hbfb892340a78b30d
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x5582598d304a - std::rt::lang_start_internal::hce6e4c0ce56abb51
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x558259882540 - std::rt::lang_start::haa35085d0e470cd5
[INFO] [stderr]                                  at /rustc/836c31742687ba4e2f857b5b698e1e9e6b67619c/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x55825988190c - main
[INFO] [stderr]     28:     0x7f2eabf600b3 - __libc_start_main
[INFO] [stderr]     29:     0x55825988085e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a4fddedcf1bf871a55827453bc8c1a072567dd777cbcffc4d8f6138ab3be19c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fddedcf1bf871a55827453bc8c1a072567dd777cbcffc4d8f6138ab3be19c0", kill_on_drop: false }`
[INFO] [stdout] a4fddedcf1bf871a55827453bc8c1a072567dd777cbcffc4d8f6138ab3be19c0