[INFO] fetching crate wtf-rlsr 1.1.1...
[INFO] checking wtf-rlsr-1.1.1 against beta for pr-78714
[INFO] extracting crate wtf-rlsr 1.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate wtf-rlsr 1.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wtf-rlsr 1.1.1
[INFO] finished tweaking crates.io crate wtf-rlsr 1.1.1
[INFO] tweaked toml for crates.io crate wtf-rlsr 1.1.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate wtf-rlsr 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 8894ccbd0310138d7105ff26da14cced29f46b679c0a0f768ba1b8c2656cb86e
[INFO] running `Command { std: "docker" "start" "-a" "8894ccbd0310138d7105ff26da14cced29f46b679c0a0f768ba1b8c2656cb86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8894ccbd0310138d7105ff26da14cced29f46b679c0a0f768ba1b8c2656cb86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8894ccbd0310138d7105ff26da14cced29f46b679c0a0f768ba1b8c2656cb86e", kill_on_drop: false }`
[INFO] [stdout] 8894ccbd0310138d7105ff26da14cced29f46b679c0a0f768ba1b8c2656cb86e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7c5659a3bc8e29fd7115977f6175a3f86d1df5ace7a00233daa9ce7e7b8e274
[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" "f7c5659a3bc8e29fd7115977f6175a3f86d1df5ace7a00233daa9ce7e7b8e274", kill_on_drop: false }`
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking home v0.5.1
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking proc-macro2 v1.0.7
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking colored v1.9.1
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking sized-chunks v0.3.1
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]     Checking dialoguer v0.5.0
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking syn v1.0.13
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libssh2-sys v0.2.13
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]    Compiling libgit2-sys v0.9.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking const-random v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking which v3.1.0
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking serde_ignored v0.1.1
[INFO] [stderr]     Checking cargo-platform v0.1.0
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking crates-io v0.29.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking git2 v0.10.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking git2-curl v0.11.0
[INFO] [stderr]     Checking cargo v0.41.0
[INFO] [stderr]     Checking wtf-rlsr v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_strip, try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(str_strip, try_trait)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wtf-rlsr`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f7c5659a3bc8e29fd7115977f6175a3f86d1df5ace7a00233daa9ce7e7b8e274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c5659a3bc8e29fd7115977f6175a3f86d1df5ace7a00233daa9ce7e7b8e274", kill_on_drop: false }`
[INFO] [stdout] f7c5659a3bc8e29fd7115977f6175a3f86d1df5ace7a00233daa9ce7e7b8e274