[INFO] fetching crate kurobako 0.2.0...
[INFO] checking kurobako-0.2.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate kurobako 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate kurobako 0.2.0 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kurobako 0.2.0
[INFO] finished tweaking crates.io crate kurobako 0.2.0
[INFO] tweaked toml for crates.io crate kurobako 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate kurobako 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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] 6f1fb505d0767e5a4d0e7f12b1d986b65873950e4bd4ec9dabf511ae9b725e93
[INFO] running `Command { std: "docker" "start" "-a" "6f1fb505d0767e5a4d0e7f12b1d986b65873950e4bd4ec9dabf511ae9b725e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f1fb505d0767e5a4d0e7f12b1d986b65873950e4bd4ec9dabf511ae9b725e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1fb505d0767e5a4d0e7f12b1d986b65873950e4bd4ec9dabf511ae9b725e93", kill_on_drop: false }`
[INFO] [stdout] 6f1fb505d0767e5a4d0e7f12b1d986b65873950e4bd4ec9dabf511ae9b725e93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87ececaf352f3e04bc92601680d3a6993ea119c2853831f12a145eeb2ef407cf
[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" "87ececaf352f3e04bc92601680d3a6993ea119c2853831f12a145eeb2ef407cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling cc v1.0.55
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rustats v0.1.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking bytecodec v0.4.13
[INFO] [stderr]     Checking yamakan v0.1.1
[INFO] [stderr]     Checking hdf5file v0.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking kurobako_core v0.1.7
[INFO] [stderr]     Checking nasbench v0.1.2
[INFO] [stderr]     Checking kurobako_solvers v0.2.0
[INFO] [stderr]     Checking kurobako_problems v0.1.8
[INFO] [stderr]     Checking kurobako v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "87ececaf352f3e04bc92601680d3a6993ea119c2853831f12a145eeb2ef407cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ececaf352f3e04bc92601680d3a6993ea119c2853831f12a145eeb2ef407cf", kill_on_drop: false }`
[INFO] [stdout] 87ececaf352f3e04bc92601680d3a6993ea119c2853831f12a145eeb2ef407cf