[INFO] cloning repository https://github.com/mattmac4241/po-tweet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattmac4241/po-tweet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmac4241%2Fpo-tweet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmac4241%2Fpo-tweet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 217cd5c078fc4a761c64183b5380513aa4e6d69e
[INFO] testing mattmac4241/po-tweet against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmac4241%2Fpo-tweet" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattmac4241/po-tweet on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattmac4241/po-tweet
[INFO] finished tweaking git repo https://github.com/mattmac4241/po-tweet
[INFO] tweaked toml for git repo https://github.com/mattmac4241/po-tweet written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mattmac4241/po-tweet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (rocket_contrib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.3.10
[INFO] [stderr]   Downloaded untrusted v0.3.2
[INFO] [stderr]   Downloaded byteorder v0.3.13
[INFO] [stderr]   Downloaded pq-sys v0.2.7
[INFO] [stderr]   Downloaded gcc v0.3.41
[INFO] [stderr]   Downloaded bcrypt v0.1.3
[INFO] [stderr]   Downloaded diesel v0.9.1
[INFO] [stderr]   Downloaded rocket v0.1.5
[INFO] [stderr]   Downloaded rocket_contrib v0.1.5
[INFO] [stderr]   Downloaded redox_syscall v0.1.16
[INFO] [stderr]   Downloaded serde_codegen v0.8.22
[INFO] [stderr]   Downloaded time v0.1.36
[INFO] [stderr]   Downloaded diesel_codegen_shared v0.9.0
[INFO] [stderr]   Downloaded rocket_codegen v0.1.5
[INFO] [stderr]   Downloaded term v0.4.4
[INFO] [stderr]   Downloaded url v1.3.0
[INFO] [stderr]   Downloaded diesel_codegen v0.9.0
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded serde_derive v0.8.22
[INFO] [stderr]   Downloaded serde_codegen_internals v0.11.3
[INFO] [stderr]   Downloaded syn v0.10.6
[INFO] [stderr]   Downloaded jsonwebtoken v1.1.5
[INFO] [stderr]   Downloaded ring v0.3.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 91cb69b9b98f333471794005e8a306edb97d5de7121103fc3e8bd38765662f09
[INFO] running `Command { std: "docker" "start" "-a" "91cb69b9b98f333471794005e8a306edb97d5de7121103fc3e8bd38765662f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91cb69b9b98f333471794005e8a306edb97d5de7121103fc3e8bd38765662f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91cb69b9b98f333471794005e8a306edb97d5de7121103fc3e8bd38765662f09", kill_on_drop: false }`
[INFO] [stdout] 91cb69b9b98f333471794005e8a306edb97d5de7121103fc3e8bd38765662f09
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faaff84a116afcb5aeb66fb754bb3a6757135a4b5b3387780473dd5015f272e9
[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" "faaff84a116afcb5aeb66fb754bb3a6757135a4b5b3387780473dd5015f272e9", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (rocket_contrib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling pq-sys v0.2.7
[INFO] [stderr]    Compiling quote v0.3.10
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling byteorder v0.3.13
[INFO] [stderr]    Compiling ring v0.3.1
[INFO] [stderr]    Compiling untrusted v0.3.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling mime v0.2.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling rocket_codegen v0.1.5
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling term v0.4.4
[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/rocket_codegen-0.1.5/build.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[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 `rocket_codegen` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `&&Vec<String>` is not an iterator
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.3.1/build.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |             .args(&args)
[INFO] [stdout]     |              ---- ^^^^^
[INFO] [stdout]     |              |    |
[INFO] [stdout]     |              |    `&&Vec<String>` is not an iterator
[INFO] [stdout]     |              |    help: consider adding dereference here: `&*args`
[INFO] [stdout]     |              required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `&&Vec<String>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `IntoIterator` for `&&Vec<String>`
[INFO] [stdout] note: required by a bound in `Command::args`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "faaff84a116afcb5aeb66fb754bb3a6757135a4b5b3387780473dd5015f272e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faaff84a116afcb5aeb66fb754bb3a6757135a4b5b3387780473dd5015f272e9", kill_on_drop: false }`
[INFO] [stdout] faaff84a116afcb5aeb66fb754bb3a6757135a4b5b3387780473dd5015f272e9