[INFO] cloning repository https://github.com/yukimemi/gsr-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yukimemi/gsr-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 245cae1f9f03afab8c523ecb40abe96ca094a33d
[INFO] testing yukimemi/gsr-rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukimemi%2Fgsr-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yukimemi/gsr-rs on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yukimemi/gsr-rs
[INFO] finished tweaking git repo https://github.com/yukimemi/gsr-rs
[INFO] tweaked toml for git repo https://github.com/yukimemi/gsr-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/yukimemi/gsr-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded walkdir v2.0.1
[INFO] [stderr]   Downloaded same-file v1.0.0
[INFO] [stderr]   Downloaded num_cpus v1.7.0
[INFO] [stderr]   Downloaded structopt v0.1.4
[INFO] [stderr]   Downloaded structopt-derive v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 933bb22dc7a100e53a74f292425542eab6d25aed110e072099d9c32140463844
[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" "933bb22dc7a100e53a74f292425542eab6d25aed110e072099d9c32140463844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "933bb22dc7a100e53a74f292425542eab6d25aed110e072099d9c32140463844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933bb22dc7a100e53a74f292425542eab6d25aed110e072099d9c32140463844", kill_on_drop: false }`
[INFO] [stdout] 933bb22dc7a100e53a74f292425542eab6d25aed110e072099d9c32140463844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 121ec61b7ae80f547a9a1d28ce9a229aca5730bb284d76269ec32f1a7bc33ca6
[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" "121ec61b7ae80f547a9a1d28ce9a229aca5730bb284d76269ec32f1a7bc33ca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling same-file v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.1.4
[INFO] [stderr]    Compiling walkdir v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling clap v2.27.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling structopt v0.1.4
[INFO] [stderr]    Compiling gsr v0.4.2 (/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(attr_literals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/main.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 | /         lazy_static! {
[INFO] [stdout] 175 | |             static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap();
[INFO] [stdout] 176 | |         }
[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 constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/main.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 | /         lazy_static! {
[INFO] [stdout] 175 | |             static ref RE: Regex = Regex::new(r"\[.*ahead.*\]").unwrap();
[INFO] [stdout] 176 | |         }
[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 constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/main.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | /         lazy_static! {
[INFO] [stdout] 188 | |             static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap();
[INFO] [stdout] 189 | |         }
[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 constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/main.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | /         lazy_static! {
[INFO] [stdout] 188 | |             static ref RE: Regex = Regex::new(r"\[.*behind.*\]").unwrap();
[INFO] [stdout] 189 | |         }
[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 associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/main.rs:61:74
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 return WalkDir::new(String::from_utf8_lossy(&out.stdout).trim_right()).max_depth(4);
[INFO] [stdout]    |                                                                          ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 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 `gsr`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "121ec61b7ae80f547a9a1d28ce9a229aca5730bb284d76269ec32f1a7bc33ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121ec61b7ae80f547a9a1d28ce9a229aca5730bb284d76269ec32f1a7bc33ca6", kill_on_drop: false }`
[INFO] [stdout] 121ec61b7ae80f547a9a1d28ce9a229aca5730bb284d76269ec32f1a7bc33ca6