[INFO] fetching crate fdh 0.8.1...
[INFO] checking fdh-0.8.1 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] extracting crate fdh 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fdh 0.8.1 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fdh 0.8.1
[INFO] finished tweaking crates.io crate fdh 0.8.1
[INFO] tweaked toml for crates.io crate fdh 0.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded secret_integers v0.1.6
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8aa24d091f87d93b180face93a33066e01c1acc701388a56d915bc3ff123f06d
[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" "8aa24d091f87d93b180face93a33066e01c1acc701388a56d915bc3ff123f06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aa24d091f87d93b180face93a33066e01c1acc701388a56d915bc3ff123f06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa24d091f87d93b180face93a33066e01c1acc701388a56d915bc3ff123f06d", kill_on_drop: false }`
[INFO] [stdout] 8aa24d091f87d93b180face93a33066e01c1acc701388a56d915bc3ff123f06d
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 758eec760aef8f05c906d08731031aaa3faf1c82a8e6ef51776db51e63bc695d
[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" "758eec760aef8f05c906d08731031aaa3faf1c82a8e6ef51776db51e63bc695d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking secret_integers v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling num-bigint-dig v0.6.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking fdh v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.63s
[INFO] running `Command { std: "docker" "inspect" "758eec760aef8f05c906d08731031aaa3faf1c82a8e6ef51776db51e63bc695d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758eec760aef8f05c906d08731031aaa3faf1c82a8e6ef51776db51e63bc695d", kill_on_drop: false }`
[INFO] [stdout] 758eec760aef8f05c906d08731031aaa3faf1c82a8e6ef51776db51e63bc695d