[INFO] fetching crate sysbar 0.2.0...
[INFO] testing sysbar-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate sysbar 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate sysbar 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sysbar 0.2.0
[INFO] finished tweaking crates.io crate sysbar 0.2.0
[INFO] tweaked toml for crates.io crate sysbar 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate sysbar 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded core-graphics v0.19.0
[INFO] [stderr]   Downloaded cocoa v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f75362093559bf53911419db3a5c0ca7da4392099c98f684f7d94d7c04744b5
[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" "7f75362093559bf53911419db3a5c0ca7da4392099c98f684f7d94d7c04744b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f75362093559bf53911419db3a5c0ca7da4392099c98f684f7d94d7c04744b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f75362093559bf53911419db3a5c0ca7da4392099c98f684f7d94d7c04744b5", kill_on_drop: false }`
[INFO] [stdout] 7f75362093559bf53911419db3a5c0ca7da4392099c98f684f7d94d7c04744b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", 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] 9f6c36f53bf46aa8c55aedba4c78da0eb08c192e2b0fbca3d672cb26f9473710
[INFO] running `Command { std: "docker" "start" "-a" "9f6c36f53bf46aa8c55aedba4c78da0eb08c192e2b0fbca3d672cb26f9473710", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sysbar v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SysbarImpl`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Sysbar(SysbarImpl::new(name))
[INFO] [stdout]    |                ^^^^^^^^^^ use of undeclared type `SysbarImpl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `SysbarImpl` in this scope
[INFO] [stdout]  --> src/lib.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Sysbar(SysbarImpl);
[INFO] [stdout]   |                   ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sysbar`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "9f6c36f53bf46aa8c55aedba4c78da0eb08c192e2b0fbca3d672cb26f9473710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6c36f53bf46aa8c55aedba4c78da0eb08c192e2b0fbca3d672cb26f9473710", kill_on_drop: false }`
[INFO] [stdout] 9f6c36f53bf46aa8c55aedba4c78da0eb08c192e2b0fbca3d672cb26f9473710