[INFO] crate kurobako 0.1.8 is already in cache
[INFO] checking kurobako-0.1.8 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] extracting crate kurobako 0.1.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate kurobako 0.1.8 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kurobako 0.1.8
[INFO] finished tweaking crates.io crate kurobako 0.1.8
[INFO] tweaked toml for crates.io crate kurobako 0.1.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate kurobako 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 641fa6f8cf517f714dd36aa5d8dccf1a28e5e37ab30458598947228b76039dec
[INFO] running `"docker" "start" "-a" "641fa6f8cf517f714dd36aa5d8dccf1a28e5e37ab30458598947228b76039dec"`
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking rustats v0.1.1
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]    Compiling proc-macro-error v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.9
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking bytecodec v0.4.13
[INFO] [stderr]     Checking yamakan v0.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]     Checking protobuf_codec v0.2.8
[INFO] [stderr]     Checking hdf5file v0.1.1
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking structopt v0.3.9
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking kurobako_core v0.1.6
[INFO] [stderr]     Checking nasbench v0.1.2
[INFO] [stderr]     Checking kurobako_problems v0.1.7
[INFO] [stderr]     Checking kurobako_solvers v0.1.6
[INFO] [stderr]     Checking kurobako v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `"docker" "inspect" "641fa6f8cf517f714dd36aa5d8dccf1a28e5e37ab30458598947228b76039dec"`
[INFO] running `"docker" "rm" "-f" "641fa6f8cf517f714dd36aa5d8dccf1a28e5e37ab30458598947228b76039dec"`
[INFO] [stdout] 641fa6f8cf517f714dd36aa5d8dccf1a28e5e37ab30458598947228b76039dec