[INFO] fetching crate thingvellir 0.0.4-alpha0...
[INFO] testing thingvellir-0.0.4-alpha0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate thingvellir 0.0.4-alpha0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate thingvellir 0.0.4-alpha0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-90/source/rust-toolchain
[INFO] started tweaking crates.io crate thingvellir 0.0.4-alpha0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate thingvellir 0.0.4-alpha0
[INFO] tweaked toml for crates.io crate thingvellir 0.0.4-alpha0 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate crates.io crate thingvellir 0.0.4-alpha0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76058e589f13ff5e9abb5939fc4372092ad43a1d7b17bede0948aa87a61717b7
[INFO] running `Command { std: "docker" "start" "-a" "76058e589f13ff5e9abb5939fc4372092ad43a1d7b17bede0948aa87a61717b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76058e589f13ff5e9abb5939fc4372092ad43a1d7b17bede0948aa87a61717b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76058e589f13ff5e9abb5939fc4372092ad43a1d7b17bede0948aa87a61717b7", kill_on_drop: false }`
[INFO] [stdout] 76058e589f13ff5e9abb5939fc4372092ad43a1d7b17bede0948aa87a61717b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce466bf2127b2dbb40c45c2aa0576d18ae306f323038e939849964ee6a5d7e52
[INFO] running `Command { std: "docker" "start" "-a" "ce466bf2127b2dbb40c45c2aa0576d18ae306f323038e939849964ee6a5d7e52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling discord-indexmap v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling dynamic-pool v0.2.2
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling tokio-util v0.6.5
[INFO] [stderr]    Compiling thingvellir v0.0.4-alpha0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.92s
[INFO] running `Command { std: "docker" "inspect" "ce466bf2127b2dbb40c45c2aa0576d18ae306f323038e939849964ee6a5d7e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce466bf2127b2dbb40c45c2aa0576d18ae306f323038e939849964ee6a5d7e52", kill_on_drop: false }`
[INFO] [stdout] ce466bf2127b2dbb40c45c2aa0576d18ae306f323038e939849964ee6a5d7e52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3ae31fec9b279ffc6ad0b55b9e40e779f067db8332df90d93c9043b5331cd9a
[INFO] running `Command { std: "docker" "start" "-a" "b3ae31fec9b279ffc6ad0b55b9e40e779f067db8332df90d93c9043b5331cd9a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling tokio-stream v0.1.5
[INFO] [stderr]    Compiling async-stream v0.3.0
[INFO] [stderr]    Compiling tokio-test v0.4.1
[INFO] [stderr]    Compiling thingvellir v0.0.4-alpha0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> examples/simple.rs:87:38
[INFO] [stdout]     |
[INFO] [stdout] 87  |                 let n = thread_rng().gen_range(0, 5000);
[INFO] [stdout]     |                                      ^^^^^^^^^ -  ---- supplied 2 arguments
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thingvellir` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b3ae31fec9b279ffc6ad0b55b9e40e779f067db8332df90d93c9043b5331cd9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3ae31fec9b279ffc6ad0b55b9e40e779f067db8332df90d93c9043b5331cd9a", kill_on_drop: false }`
[INFO] [stdout] b3ae31fec9b279ffc6ad0b55b9e40e779f067db8332df90d93c9043b5331cd9a