[INFO] cloning repository https://github.com/wycats/salsa-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wycats/salsa-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1829f87e55653290a993f64e4a55559ca3d232dc
[INFO] testing wycats/salsa-examples against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wycats/salsa-examples on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wycats/salsa-examples
[INFO] finished tweaking git repo https://github.com/wycats/salsa-examples
[INFO] tweaked toml for git repo https://github.com/wycats/salsa-examples written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wycats/salsa-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-new v0.5.5
[INFO] [stderr]   Downloaded salsa v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd73fa9a9c7afc8c4e5d24533dd4ea5becdebfb648cd20b5283c0cada691e0e3
[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" "bd73fa9a9c7afc8c4e5d24533dd4ea5becdebfb648cd20b5283c0cada691e0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd73fa9a9c7afc8c4e5d24533dd4ea5becdebfb648cd20b5283c0cada691e0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd73fa9a9c7afc8c4e5d24533dd4ea5becdebfb648cd20b5283c0cada691e0e3", kill_on_drop: false }`
[INFO] [stdout] bd73fa9a9c7afc8c4e5d24533dd4ea5becdebfb648cd20b5283c0cada691e0e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 6c33317cfc88469ae3489e4b1ba1562550f457971d95129a7e285da1f5790c58
[INFO] running `Command { std: "docker" "start" "-a" "6c33317cfc88469ae3489e4b1ba1562550f457971d95129a7e285da1f5790c58", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling derive-new v0.5.5
[INFO] [stderr]    Compiling salsa v0.7.0
[INFO] [stderr]    Compiling salsa-test 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(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `string_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |             fn string_by_id() for InternedString;
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StringById`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `array_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |             fn array_by_id() for InternedArray;
[INFO] [stdout]    |                ^^^^^^^^^^^ help: convert the identifier to upper camel case: `ArrayById`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `concat` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |             fn concat() for ConcatString;
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Concat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `salsa-test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6c33317cfc88469ae3489e4b1ba1562550f457971d95129a7e285da1f5790c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c33317cfc88469ae3489e4b1ba1562550f457971d95129a7e285da1f5790c58", kill_on_drop: false }`
[INFO] [stdout] 6c33317cfc88469ae3489e4b1ba1562550f457971d95129a7e285da1f5790c58