[INFO] fetching crate mikino_api 0.5.1...
[INFO] testing mikino_api-0.5.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate mikino_api 0.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mikino_api 0.5.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mikino_api 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mikino_api 0.5.1
[INFO] tweaked toml for crates.io crate mikino_api 0.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mikino_api 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98b1dbb7ead25a5ef75649069890b2d40302c945b2374a7a14db9d28f6449a7a
[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" "98b1dbb7ead25a5ef75649069890b2d40302c945b2374a7a14db9d28f6449a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98b1dbb7ead25a5ef75649069890b2d40302c945b2374a7a14db9d28f6449a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b1dbb7ead25a5ef75649069890b2d40302c945b2374a7a14db9d28f6449a7a", kill_on_drop: false }`
[INFO] [stdout] 98b1dbb7ead25a5ef75649069890b2d40302c945b2374a7a14db9d28f6449a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 167940c02df2b38fd6da005ea5bd6d7f9d6447dcea435f694187be1a9f8bd896
[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" "167940c02df2b38fd6da005ea5bd6d7f9d6447dcea435f694187be1a9f8bd896", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling peg v0.7.0
[INFO] [stderr]    Compiling readonly v0.2.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling rsmt2 v0.14.0
[INFO] [stderr]    Compiling mikino_api v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.33s
[INFO] running `Command { std: "docker" "inspect" "167940c02df2b38fd6da005ea5bd6d7f9d6447dcea435f694187be1a9f8bd896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "167940c02df2b38fd6da005ea5bd6d7f9d6447dcea435f694187be1a9f8bd896", kill_on_drop: false }`
[INFO] [stdout] 167940c02df2b38fd6da005ea5bd6d7f9d6447dcea435f694187be1a9f8bd896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--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] f5c5daac4f21a1f345f30f1dac47c4d474e2193f2f2fa11a3061510b8b44fb4a
[INFO] running `Command { std: "docker" "start" "-a" "f5c5daac4f21a1f345f30f1dac47c4d474e2193f2f2fa11a3061510b8b44fb4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mikino_api v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "f5c5daac4f21a1f345f30f1dac47c4d474e2193f2f2fa11a3061510b8b44fb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c5daac4f21a1f345f30f1dac47c4d474e2193f2f2fa11a3061510b8b44fb4a", kill_on_drop: false }`
[INFO] [stdout] f5c5daac4f21a1f345f30f1dac47c4d474e2193f2f2fa11a3061510b8b44fb4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99b935359b44cf6aad1c8331f65921e0d8b3c23982b905af35c746a06d1bf545
[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" "99b935359b44cf6aad1c8331f65921e0d8b3c23982b905af35c746a06d1bf545", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mikino_api-dce1b2f571c2a668)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test expr::test::typing_implies ... ok
[INFO] [stdout] test expr::test::typing_cmp ... ok
[INFO] [stdout] test expr::test::typing_ite_fail ... ok
[INFO] [stdout] test expr::test::typing_ite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mikino_api
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mikino_api --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern either=/opt/rustwide/target/debug/deps/libeither-2e3eb180977f1f53.rlib --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-02d1616918fe84fd.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b33cd6b8ee13db74.rlib --extern mikino_api=/opt/rustwide/target/debug/deps/libmikino_api-2afe9b2214fad032.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-2bf283e988015fd8.rlib --extern peg=/opt/rustwide/target/debug/deps/libpeg-4a28e093145e1a29.rlib --extern readonly=/opt/rustwide/target/debug/deps/libreadonly-eb77980752ee7806.so --extern rsmt2=/opt/rustwide/target/debug/deps/librsmt2-e72a0ae758173cca.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "99b935359b44cf6aad1c8331f65921e0d8b3c23982b905af35c746a06d1bf545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b935359b44cf6aad1c8331f65921e0d8b3c23982b905af35c746a06d1bf545", kill_on_drop: false }`
[INFO] [stdout] 99b935359b44cf6aad1c8331f65921e0d8b3c23982b905af35c746a06d1bf545