[INFO] crate sorter 0.4.0 is already in cache
[INFO] testing sorter-0.4.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate sorter 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sorter 0.4.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sorter 0.4.0
[INFO] finished tweaking crates.io crate sorter 0.4.0
[INFO] tweaked toml for crates.io crate sorter 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83ca6af2eb6f2d59c24cb918b7cc19ecfb3c470e210c50f16cf1296d0d0a7dd5
[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" "83ca6af2eb6f2d59c24cb918b7cc19ecfb3c470e210c50f16cf1296d0d0a7dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83ca6af2eb6f2d59c24cb918b7cc19ecfb3c470e210c50f16cf1296d0d0a7dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ca6af2eb6f2d59c24cb918b7cc19ecfb3c470e210c50f16cf1296d0d0a7dd5", kill_on_drop: false }`
[INFO] [stdout] 83ca6af2eb6f2d59c24cb918b7cc19ecfb3c470e210c50f16cf1296d0d0a7dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb32e4a5a639efb8b73c86ddfa762a21c2fe181a0a9fd29cfb0f038b4ab709f
[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" "4bb32e4a5a639efb8b73c86ddfa762a21c2fe181a0a9fd29cfb0f038b4ab709f", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "4bb32e4a5a639efb8b73c86ddfa762a21c2fe181a0a9fd29cfb0f038b4ab709f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb32e4a5a639efb8b73c86ddfa762a21c2fe181a0a9fd29cfb0f038b4ab709f", kill_on_drop: false }`
[INFO] [stdout] 4bb32e4a5a639efb8b73c86ddfa762a21c2fe181a0a9fd29cfb0f038b4ab709f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32346723fc3272e539868c42888d03827ba7de26d4b23ba3644bad07bb0c1768
[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" "32346723fc3272e539868c42888d03827ba7de26d4b23ba3644bad07bb0c1768", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> tests/sorter.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{Rng, thread_rng};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stdout]   --> tests/sorter.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     make_test_vec = thread_rng().gen_iter::<i32>().take(1000).collect::<Vec<i32>>();
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stdout]   --> tests/sorter.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |     make_test_vec = thread_rng().gen_iter::<i32>().take(555).collect::<Vec<i32>>();
[INFO] [stdout]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sorter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "32346723fc3272e539868c42888d03827ba7de26d4b23ba3644bad07bb0c1768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32346723fc3272e539868c42888d03827ba7de26d4b23ba3644bad07bb0c1768", kill_on_drop: false }`
[INFO] [stdout] 32346723fc3272e539868c42888d03827ba7de26d4b23ba3644bad07bb0c1768