[INFO] cloning repository https://github.com/AidoP/Ley
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AidoP/Ley" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2FLey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2FLey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a9186333c6fc74aad1956805b7b760e8648eb0e
[INFO] testing AidoP/Ley against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAidoP%2FLey" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AidoP/Ley on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AidoP/Ley
[INFO] finished tweaking git repo https://github.com/AidoP/Ley
[INFO] tweaked toml for git repo https://github.com/AidoP/Ley written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/AidoP/Ley already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] efc0400853e2a94a2c80408772a8d248a2cdb89f77b69ec04c2d1961a84c47c2
[INFO] running `Command { std: "docker" "start" "-a" "efc0400853e2a94a2c80408772a8d248a2cdb89f77b69ec04c2d1961a84c47c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efc0400853e2a94a2c80408772a8d248a2cdb89f77b69ec04c2d1961a84c47c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc0400853e2a94a2c80408772a8d248a2cdb89f77b69ec04c2d1961a84c47c2", kill_on_drop: false }`
[INFO] [stdout] efc0400853e2a94a2c80408772a8d248a2cdb89f77b69ec04c2d1961a84c47c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83fbc19198f4e396b814722cd98080b8afb771dcacac5b65cbd6ba1facd49124
[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" "83fbc19198f4e396b814722cd98080b8afb771dcacac5b65cbd6ba1facd49124", kill_on_drop: false }`
[INFO] [stderr]    Compiling ley v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{collections::VecDeque, env, fs::{File, read_dir}, io::{Read, Write}, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/fmt.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Display, fs::File, io::{self, Write}, path::PathBuf};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/fmt.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::catch`
[INFO] [stdout]  --> src/fmt.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::catch;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ley`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "83fbc19198f4e396b814722cd98080b8afb771dcacac5b65cbd6ba1facd49124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83fbc19198f4e396b814722cd98080b8afb771dcacac5b65cbd6ba1facd49124", kill_on_drop: false }`
[INFO] [stdout] 83fbc19198f4e396b814722cd98080b8afb771dcacac5b65cbd6ba1facd49124
