[INFO] cloning repository https://github.com/light4/sfview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/light4/sfview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flight4%2Fsfview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flight4%2Fsfview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c34989681fc155b1dea94d29e43e2e6b6b3de3c4
[INFO] testing light4/sfview against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flight4%2Fsfview" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/light4/sfview on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/light4/sfview
[INFO] finished tweaking git repo https://github.com/light4/sfview
[INFO] tweaked toml for git repo https://github.com/light4/sfview written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/light4/sfview already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libssh2-sys v0.2.19
[INFO] [stderr]   Downloaded ssh2 v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a411db35105b2289aa6c55cdeb74b17c07513f8d46d4b8aa45404d2e5d574fc5
[INFO] running `Command { std: "docker" "start" "-a" "a411db35105b2289aa6c55cdeb74b17c07513f8d46d4b8aa45404d2e5d574fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a411db35105b2289aa6c55cdeb74b17c07513f8d46d4b8aa45404d2e5d574fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a411db35105b2289aa6c55cdeb74b17c07513f8d46d4b8aa45404d2e5d574fc5", kill_on_drop: false }`
[INFO] [stdout] a411db35105b2289aa6c55cdeb74b17c07513f8d46d4b8aa45404d2e5d574fc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68850c156c346cd15b5d938a605c8aa99260aea9b871661c0f4297a8db1f4ece
[INFO] running `Command { std: "docker" "start" "-a" "68850c156c346cd15b5d938a605c8aa99260aea9b871661c0f4297a8db1f4ece", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling ssh2 v0.8.2
[INFO] [stderr]    Compiling sfview v0.1.0 (/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(seek_convenience)]
[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 `sfview` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "68850c156c346cd15b5d938a605c8aa99260aea9b871661c0f4297a8db1f4ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68850c156c346cd15b5d938a605c8aa99260aea9b871661c0f4297a8db1f4ece", kill_on_drop: false }`
[INFO] [stdout] 68850c156c346cd15b5d938a605c8aa99260aea9b871661c0f4297a8db1f4ece
