[INFO] cloning repository https://github.com/admwrd/blogr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/admwrd/blogr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmwrd%2Fblogr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmwrd%2Fblogr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0283b0734f0d65d2a8cc70389beefd30c2e6a5bb
[INFO] checking admwrd/blogr against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadmwrd%2Fblogr" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  52% (247/470)   
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Checking out files: 100% (470/470), done.
[INFO] validating manifest of git repo https://github.com/admwrd/blogr 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 git repo https://github.com/admwrd/blogr
[INFO] finished tweaking git repo https://github.com/admwrd/blogr
[INFO] tweaked toml for git repo https://github.com/admwrd/blogr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/admwrd/blogr 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 8ab1d76ed64d199a62662378712e70055d0eb325f4026bbe8699acc04d415ab9
[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" "8ab1d76ed64d199a62662378712e70055d0eb325f4026bbe8699acc04d415ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ab1d76ed64d199a62662378712e70055d0eb325f4026bbe8699acc04d415ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab1d76ed64d199a62662378712e70055d0eb325f4026bbe8699acc04d415ab9", kill_on_drop: false }`
[INFO] [stdout] 8ab1d76ed64d199a62662378712e70055d0eb325f4026bbe8699acc04d415ab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 646f48cf777e0a02ee8caed0a09f5d383d4d0478d150d033af35d3b0b01207b2
[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" "646f48cf777e0a02ee8caed0a09f5d383d4d0478d150d033af35d3b0b01207b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking unic-char-range v0.6.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking unic-ucd-core v0.6.0
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.4/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[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 `yansi`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "646f48cf777e0a02ee8caed0a09f5d383d4d0478d150d033af35d3b0b01207b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646f48cf777e0a02ee8caed0a09f5d383d4d0478d150d033af35d3b0b01207b2", kill_on_drop: false }`
[INFO] [stdout] 646f48cf777e0a02ee8caed0a09f5d383d4d0478d150d033af35d3b0b01207b2