[INFO] crate kurobako_solvers 0.1.6 is already in cache
[INFO] checking kurobako_solvers-0.1.6 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate kurobako_solvers 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kurobako_solvers 0.1.6 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kurobako_solvers 0.1.6
[INFO] finished tweaking crates.io crate kurobako_solvers 0.1.6
[INFO] tweaked toml for crates.io crate kurobako_solvers 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b4d0f31ed57633f1ece08a5f85d75f93e92a8983bffa35aaef0bc6dc2a9d74a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4b4d0f31ed57633f1ece08a5f85d75f93e92a8983bffa35aaef0bc6dc2a9d74a"`
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]     Checking yamakan v0.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking kurobako_core v0.1.6
[INFO] [stderr]     Checking kurobako_solvers v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.86s
[INFO] running `"docker" "inspect" "4b4d0f31ed57633f1ece08a5f85d75f93e92a8983bffa35aaef0bc6dc2a9d74a"`
[INFO] running `"docker" "rm" "-f" "4b4d0f31ed57633f1ece08a5f85d75f93e92a8983bffa35aaef0bc6dc2a9d74a"`
[INFO] [stdout] 4b4d0f31ed57633f1ece08a5f85d75f93e92a8983bffa35aaef0bc6dc2a9d74a