[INFO] cloning repository https://github.com/acmumn/minnehack-blockchain-check-in
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acmumn/minnehack-blockchain-check-in" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fminnehack-blockchain-check-in", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fminnehack-blockchain-check-in'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b75908ad2b87b7c31018b8e2e7f8df6aa3092831
[INFO] checking acmumn/minnehack-blockchain-check-in against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fminnehack-blockchain-check-in" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/acmumn/minnehack-blockchain-check-in on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acmumn/minnehack-blockchain-check-in
[INFO] removed workspace from git repo https://github.com/acmumn/minnehack-blockchain-check-in
[INFO] finished tweaking git repo https://github.com/acmumn/minnehack-blockchain-check-in
[INFO] tweaked toml for git repo https://github.com/acmumn/minnehack-blockchain-check-in written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/acmumn/minnehack-blockchain-check-in already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b29ee811fd1f7a52be0b54e69cc2d9591390d405ab6bf1597b467fc0fc444d0
[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" "3b29ee811fd1f7a52be0b54e69cc2d9591390d405ab6bf1597b467fc0fc444d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b29ee811fd1f7a52be0b54e69cc2d9591390d405ab6bf1597b467fc0fc444d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b29ee811fd1f7a52be0b54e69cc2d9591390d405ab6bf1597b467fc0fc444d0", kill_on_drop: false }`
[INFO] [stdout] 3b29ee811fd1f7a52be0b54e69cc2d9591390d405ab6bf1597b467fc0fc444d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 78ea44a0d3055937a6515b41fbc3144333368fbcb181f3a536a3f9c252e0a545
[INFO] running `Command { std: "docker" "start" "-a" "78ea44a0d3055937a6515b41fbc3144333368fbcb181f3a536a3f9c252e0a545", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
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[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking regex-syntax v0.6.21
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[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
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[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
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[INFO] [stderr]     Checking addr2line v0.14.1
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[INFO] [stderr]     Checking pretty_env_logger v0.1.1
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking serde_cbor v0.8.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking dotenv v0.10.1
[INFO] [stderr]     Checking minnehack-check-in v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/blockchain/parse.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | named!(pub hash(&[u8]) -> Hash, map!(count_fixed!(u8, le_u8, 32), Hash));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/p2p/parse.rs:70:1
[INFO] [stdout]    |
[INFO] [stdout] 70 | / named!(ipv4(&[u8]) -> Ipv4Addr,
[INFO] [stdout] 71 | |     map!(count_fixed!(u8, le_u8, 4), Ipv4Addr::from));
[INFO] [stdout]    | |______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/p2p/parse.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | / named!(ipv6(&[u8]) -> Ipv6Addr,
[INFO] [stdout] 73 | |     map!(count_fixed!(u8, le_u8, 16), Ipv6Addr::from));
[INFO] [stdout]    | |_______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/blockchain/parse.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | named!(pub hash(&[u8]) -> Hash, map!(count_fixed!(u8, le_u8, 32), Hash));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/p2p/parse.rs:70:1
[INFO] [stdout]    |
[INFO] [stdout] 70 | / named!(ipv4(&[u8]) -> Ipv4Addr,
[INFO] [stdout] 71 | |     map!(count_fixed!(u8, le_u8, 4), Ipv4Addr::from));
[INFO] [stdout]    | |______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/p2p/parse.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | / named!(ipv6(&[u8]) -> Ipv6Addr,
[INFO] [stdout] 73 | |     map!(count_fixed!(u8, le_u8, 16), Ipv6Addr::from));
[INFO] [stdout]    | |_______________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut client = Client::new_with_opts(
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut client = Client::new_with_opts(
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] running `Command { std: "docker" "inspect" "78ea44a0d3055937a6515b41fbc3144333368fbcb181f3a536a3f9c252e0a545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78ea44a0d3055937a6515b41fbc3144333368fbcb181f3a536a3f9c252e0a545", kill_on_drop: false }`
[INFO] [stdout] 78ea44a0d3055937a6515b41fbc3144333368fbcb181f3a536a3f9c252e0a545