[INFO] fetching crate krpc-core 0.2.0...
[INFO] testing krpc-core-0.2.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate krpc-core 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate krpc-core 0.2.0
[INFO] finished tweaking crates.io crate krpc-core 0.2.0
[INFO] tweaked toml for crates.io crate krpc-core 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate krpc-core 0.2.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 163 packages to highest compatible versions
[INFO] [stderr]       Adding bzip2 v0.4.4 (available: v0.6.1)
[INFO] [stderr]       Adding prost v0.12.6 (available: v0.14.4)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.3)
[INFO] [stderr]       Adding zookeeper-client v0.6.4 (available: v0.11.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_enum v0.5.11
[INFO] [stderr]   Downloaded num_enum_derive v0.5.11
[INFO] [stderr]   Downloaded strum_macros v0.23.1
[INFO] [stderr]   Downloaded zookeeper-client v0.6.4
[INFO] [stderr]   Downloaded strum v0.23.0
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[INFO] [stderr]   Downloaded pretty_env_logger v0.5.0
[INFO] [stderr]   Downloaded konst_macro_rules v0.2.19
[INFO] [stderr]   Downloaded krpc-common v0.2.0
[INFO] [stderr]   Downloaded termcolor v1.4.1
[INFO] [stderr]   Downloaded protobuf-json-mapping v3.7.2
[INFO] [stderr]   Downloaded prost v0.12.6
[INFO] [stderr]   Downloaded krpc-macro v0.2.0
[INFO] [stderr]   Downloaded async-recursion v1.2.0
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[INFO] [stderr]   Downloaded h2 v0.4.20
[INFO] [stderr]   Downloaded bzip2-sys v0.1.13+1.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a
[INFO] running `Command { std: "docker" "start" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling prost v0.14.4
[INFO] [stderr]    Compiling tracing-futures v0.2.5
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[INFO] [stderr]    Compiling pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling prost-types v0.14.4
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling krpc-common v0.2.0
[INFO] [stderr]    Compiling krpc-macro v0.2.0
[INFO] [stderr]    Compiling protobuf-json-mapping v3.7.2
[INFO] [stderr]    Compiling tokio-util v0.7.20
[INFO] [stderr]    Compiling zookeeper-client v0.6.4
[INFO] [stderr]    Compiling h2 v0.4.20
[INFO] [stderr]    Compiling hyper v1.12.0
[INFO] [stderr]    Compiling krpc-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `thread_rng` in crate `rand`
[INFO] [stdout]   --> src/route/mod.rs:73:32
[INFO] [stdout]    |
[INFO] [stdout] 73 |             .choose(&mut rand::thread_rng())
[INFO] [stdout]    |                                ^^^^^^^^^^ not found in `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/route/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `choose` found for struct `Vec<SocketInfo>` in the current scope
[INFO] [stdout]   --> src/route/mod.rs:73:14
[INFO] [stdout]    |
[INFO] [stdout] 72 |           let socket_info = vec_info
[INFO] [stdout]    |  ___________________________-
[INFO] [stdout] 73 | |             .choose(&mut rand::thread_rng())
[INFO] [stdout]    | |_____________-^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `IndexedRandom` which provides `choose` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use rand::prelude::IndexedRandom;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `choose_mut` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 73 |             .choose_mut(&mut rand::thread_rng())
[INFO] [stdout]    |                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `krpc-core` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a", kill_on_drop: false }`
[INFO] [stdout] dd2d1cdeb0159a6f1373ee6451490f6f808b2eb2e11207a54260f9b476e7977a
