[INFO] updating cached repository https://github.com/linclark/enigma
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14e791b395256951642844d0f2aa572d99bb7f22
[INFO] testing linclark/enigma 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%2Flinclark%2Fenigma" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  55% (39/70)   
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Checking out files: 100% (70/70), done.
[INFO] validating manifest of git repo https://github.com/linclark/enigma 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/linclark/enigma
[INFO] finished tweaking git repo https://github.com/linclark/enigma
[INFO] tweaked toml for git repo https://github.com/linclark/enigma written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/linclark/enigma 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]     Blocking waiting for file lock on package cache
[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" "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] 9f19b72d7d96402bc9a5c1c2a933c4c0a5c72506745021179e8a4e0baf85fc6e
[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" "9f19b72d7d96402bc9a5c1c2a933c4c0a5c72506745021179e8a4e0baf85fc6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f19b72d7d96402bc9a5c1c2a933c4c0a5c72506745021179e8a4e0baf85fc6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f19b72d7d96402bc9a5c1c2a933c4c0a5c72506745021179e8a4e0baf85fc6e", kill_on_drop: false }`
[INFO] [stdout] 9f19b72d7d96402bc9a5c1c2a933c4c0a5c72506745021179e8a4e0baf85fc6e
[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" "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] [stdout] d0865043a806d2be4bce5e40c04a6161f7d499324d3a396d3a625fde8a7e7d18
[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" "d0865043a806d2be4bce5e40c04a6161f7d499324d3a396d3a625fde8a7e7d18", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling either v1.0.2
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling itertools v0.5.8
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling ultra v0.3.1 (https://github.com/linclark/ultra#cc71bafb)
[INFO] [stdout] error[E0282]: type annotations needed for `std::vec::Vec<(&str, _)>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/ultra-e470c45dfa05ab13/cc71baf/src/decrypt.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut qgrams = Vec::new();
[INFO] [stdout]    |             ---------- consider giving `qgrams` the explicit type `std::vec::Vec<(&str, _)>`, with the type parameters specified
[INFO] [stdout] ...
[INFO] [stdout] 26 |             let frequency = (n as f64) / (total as f64);
[INFO] [stdout]    |                             ^^^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: type must be known at this point
[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 E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ultra`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d0865043a806d2be4bce5e40c04a6161f7d499324d3a396d3a625fde8a7e7d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0865043a806d2be4bce5e40c04a6161f7d499324d3a396d3a625fde8a7e7d18", kill_on_drop: false }`
[INFO] [stdout] d0865043a806d2be4bce5e40c04a6161f7d499324d3a396d3a625fde8a7e7d18