[INFO] fetching crate regex 1.7.0...
[INFO] testing regex-1.7.0 against try#8dae881ac166f8debe04e17604ebbe2ab47083fd+target=i686-unknown-linux-musl for musl_upgrade_test
[INFO] extracting crate regex 1.7.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate regex 1.7.0 on toolchain 8dae881ac166f8debe04e17604ebbe2ab47083fd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate regex 1.7.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate regex 1.7.0
[INFO] tweaked toml for crates.io crate regex 1.7.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate regex 1.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "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 aho-corasick v0.7.18
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d24710974bfa93a5a039f6057b7c874f2c59a2415a2f5fe20201a17e86beb79d
[INFO] running `Command { std: "docker" "start" "-a" "d24710974bfa93a5a039f6057b7c874f2c59a2415a2f5fe20201a17e86beb79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d24710974bfa93a5a039f6057b7c874f2c59a2415a2f5fe20201a17e86beb79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24710974bfa93a5a039f6057b7c874f2c59a2415a2f5fe20201a17e86beb79d", kill_on_drop: false }`
[INFO] [stdout] d24710974bfa93a5a039f6057b7c874f2c59a2415a2f5fe20201a17e86beb79d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1a8f341d00fed4935170cff8b2f9f987313e8f321980eebf4ce321d92f15e490
[INFO] running `Command { std: "docker" "start" "-a" "1a8f341d00fed4935170cff8b2f9f987313e8f321980eebf4ce321d92f15e490", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "1a8f341d00fed4935170cff8b2f9f987313e8f321980eebf4ce321d92f15e490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8f341d00fed4935170cff8b2f9f987313e8f321980eebf4ce321d92f15e490", kill_on_drop: false }`
[INFO] [stdout] 1a8f341d00fed4935170cff8b2f9f987313e8f321980eebf4ce321d92f15e490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+8dae881ac166f8debe04e17604ebbe2ab47083fd" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 50737f9c4d5e1dbce04dd421e6cc41f2b5eed716dd7889ec934d94c2eb72d3ad
[INFO] running `Command { std: "docker" "start" "-a" "50737f9c4d5e1dbce04dd421e6cc41f2b5eed716dd7889ec934d94c2eb72d3ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling regex v1.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name default --edition=2018 tests/test_default.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=f65ac2ee44280aa4 -C extra-filename=-f65ac2ee44280aa4 --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nfa --edition=2018 tests/test_nfa.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=5a35bdaf6ff77a6f -C extra-filename=-5a35bdaf6ff77a6f --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nfa_bytes --edition=2018 tests/test_nfa_bytes.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=f9bdae1ecfbb6b22 -C extra-filename=-f9bdae1ecfbb6b22 --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name backtrack_utf8bytes --edition=2018 tests/test_backtrack_utf8bytes.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=6d9dc2c3d0b8122d -C extra-filename=-6d9dc2c3d0b8122d --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name default_bytes --edition=2018 tests/test_default_bytes.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=44907483408b65f0 -C extra-filename=-44907483408b65f0 --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nfa_utf8bytes --edition=2018 tests/test_nfa_utf8bytes.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=8bb0fd7d82940cfd -C extra-filename=-8bb0fd7d82940cfd --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libaho_corasick-8aa71c3ab65a5708.rlib --extern lazy_static=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/liblazy_static-b672f38c15659a96.rlib --extern memchr=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmemchr-1bb2cb7e4ac05402.rlib --extern quickcheck=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquickcheck-606d507d5ffaec7d.rlib --extern rand=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/librand-112b36aa4c820ae4.rlib --extern regex=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex-9822bc0363f36c1a.rlib --extern regex_syntax=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libregex_syntax-26f2ab895d0117a7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "50737f9c4d5e1dbce04dd421e6cc41f2b5eed716dd7889ec934d94c2eb72d3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50737f9c4d5e1dbce04dd421e6cc41f2b5eed716dd7889ec934d94c2eb72d3ad", kill_on_drop: false }`
[INFO] [stdout] 50737f9c4d5e1dbce04dd421e6cc41f2b5eed716dd7889ec934d94c2eb72d3ad