[INFO] fetching crate checksums 0.7.1...
[INFO] checking checksums-0.7.1 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate checksums 0.7.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate checksums 0.7.1 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate checksums 0.7.1
[INFO] finished tweaking crates.io crate checksums 0.7.1
[INFO] tweaked toml for crates.io crate checksums 0.7.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate checksums 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 448d2fc26359204b0f2eea0a48276e6b880b5ffe7aecd3ab496e80814fa44fe7
[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" "448d2fc26359204b0f2eea0a48276e6b880b5ffe7aecd3ab496e80814fa44fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "448d2fc26359204b0f2eea0a48276e6b880b5ffe7aecd3ab496e80814fa44fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448d2fc26359204b0f2eea0a48276e6b880b5ffe7aecd3ab496e80814fa44fe7", kill_on_drop: false }`
[INFO] [stdout] 448d2fc26359204b0f2eea0a48276e6b880b5ffe7aecd3ab496e80814fa44fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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] a7b4eb4f169157aa7e09c8764b893bb482e41bbb57bd4da1f425a10c1f20d1e1
[INFO] running `Command { std: "docker" "start" "-a" "a7b4eb4f169157aa7e09c8764b893bb482e41bbb57bd4da1f425a10c1f20d1e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling crc32c v0.5.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crc8 v0.1.1
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling md6 v2.0.2
[INFO] [stderr]    Compiling blake v2.0.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking shaman v0.1.0
[INFO] [stderr]     Checking checksums v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.97s
[INFO] running `Command { std: "docker" "inspect" "a7b4eb4f169157aa7e09c8764b893bb482e41bbb57bd4da1f425a10c1f20d1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b4eb4f169157aa7e09c8764b893bb482e41bbb57bd4da1f425a10c1f20d1e1", kill_on_drop: false }`
[INFO] [stdout] a7b4eb4f169157aa7e09c8764b893bb482e41bbb57bd4da1f425a10c1f20d1e1