[INFO] cloning repository https://github.com/m1cl/chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m1cl/chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cl%2Fchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cl%2Fchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9994b00bcb707510ac8a72b1dd4e75ea85be7f64
[INFO] testing m1cl/chat against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1cl%2Fchat" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m1cl/chat on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m1cl/chat
[INFO] finished tweaking git repo https://github.com/m1cl/chat
[INFO] tweaked toml for git repo https://github.com/m1cl/chat written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/m1cl/chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d106c46646efda007fade74532b2e179f56dadb3623006f8f4d6b5a7d289baf
[INFO] running `Command { std: "docker" "start" "-a" "7d106c46646efda007fade74532b2e179f56dadb3623006f8f4d6b5a7d289baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d106c46646efda007fade74532b2e179f56dadb3623006f8f4d6b5a7d289baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d106c46646efda007fade74532b2e179f56dadb3623006f8f4d6b5a7d289baf", kill_on_drop: false }`
[INFO] [stdout] 7d106c46646efda007fade74532b2e179f56dadb3623006f8f4d6b5a7d289baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04b27a38ac772dd0031f5bbd206c7e18da3bda8abe6d30b1c8ad29fa1625e7e7
[INFO] running `Command { std: "docker" "start" "-a" "04b27a38ac772dd0031f5bbd206c7e18da3bda8abe6d30b1c8ad29fa1625e7e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn get_nicklist() -> NickList {}
[INFO] [stdout]    |    ------------      ^^^^^^^^ expected struct `NickList`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stdout]   --> src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn get_nicklist() -> NickList {}
[INFO] [stdout]    |                      ^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: within `NickList`, the trait `Sized` is not implemented for `str`
[INFO] [stdout] note: required because it appears within the type `NickList`
[INFO] [stdout]   --> src/main.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct NickList {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    = note: the return type of a function must have a statically known size
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chat`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "04b27a38ac772dd0031f5bbd206c7e18da3bda8abe6d30b1c8ad29fa1625e7e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b27a38ac772dd0031f5bbd206c7e18da3bda8abe6d30b1c8ad29fa1625e7e7", kill_on_drop: false }`
[INFO] [stdout] 04b27a38ac772dd0031f5bbd206c7e18da3bda8abe6d30b1c8ad29fa1625e7e7
