[INFO] fetching crate shakmaty 0.16.3...
[INFO] checking shakmaty-0.16.3 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate shakmaty 0.16.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate shakmaty 0.16.3 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shakmaty 0.16.3
[INFO] finished tweaking crates.io crate shakmaty 0.16.3
[INFO] tweaked toml for crates.io crate shakmaty 0.16.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2497bb2ebd3249913233d762d2164792dd3a5554755b5807f4a86bb3074060ca
[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" "2497bb2ebd3249913233d762d2164792dd3a5554755b5807f4a86bb3074060ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2497bb2ebd3249913233d762d2164792dd3a5554755b5807f4a86bb3074060ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2497bb2ebd3249913233d762d2164792dd3a5554755b5807f4a86bb3074060ca", kill_on_drop: false }`
[INFO] [stdout] 2497bb2ebd3249913233d762d2164792dd3a5554755b5807f4a86bb3074060ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--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] a8e9848e2750c7ba30ff4866222e8ef64849ea9344ae175f903492d2e5c70bf9
[INFO] running `Command { std: "docker" "start" "-a" "a8e9848e2750c7ba30ff4866222e8ef64849ea9344ae175f903492d2e5c70bf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling shakmaty v0.16.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking btoi v0.4.2
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.01s
[INFO] running `Command { std: "docker" "inspect" "a8e9848e2750c7ba30ff4866222e8ef64849ea9344ae175f903492d2e5c70bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e9848e2750c7ba30ff4866222e8ef64849ea9344ae175f903492d2e5c70bf9", kill_on_drop: false }`
[INFO] [stdout] a8e9848e2750c7ba30ff4866222e8ef64849ea9344ae175f903492d2e5c70bf9