[INFO] cloning repository https://github.com/archer884/recurrence_relations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/recurrence_relations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Frecurrence_relations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Frecurrence_relations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14992ef303c8f03fffeea98752916315be42fe23
[INFO] testing archer884/recurrence_relations against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Frecurrence_relations" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/recurrence_relations 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 git repo https://github.com/archer884/recurrence_relations
[INFO] finished tweaking git repo https://github.com/archer884/recurrence_relations
[INFO] tweaked toml for git repo https://github.com/archer884/recurrence_relations written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/recurrence_relations 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]     Updating git repository `https://github.com/kbknapp/clap-rs`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/kbknapp/clap-rs`
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e43b5c149b8cd2f21abdcaf286c3d7d9f4d9190c8d81bbd334aa1716d2cae4cf
[INFO] running `Command { std: "docker" "start" "-a" "e43b5c149b8cd2f21abdcaf286c3d7d9f4d9190c8d81bbd334aa1716d2cae4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e43b5c149b8cd2f21abdcaf286c3d7d9f4d9190c8d81bbd334aa1716d2cae4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43b5c149b8cd2f21abdcaf286c3d7d9f4d9190c8d81bbd334aa1716d2cae4cf", kill_on_drop: false }`
[INFO] [stdout] e43b5c149b8cd2f21abdcaf286c3d7d9f4d9190c8d81bbd334aa1716d2cae4cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] b5a3255e0e1284385b82b6ebcf2e39dbc3873fa26175b30aa608ecb2b2ee2f70
[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" "b5a3255e0e1284385b82b6ebcf2e39dbc3873fa26175b30aa608ecb2b2ee2f70", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling textwrap v0.13.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2 (https://github.com/kbknapp/clap-rs#50fb4ca6)
[INFO] [stderr]    Compiling clap v3.0.0-beta.2 (https://github.com/kbknapp/clap-rs#50fb4ca6)
[INFO] [stderr]    Compiling recurrence_relations v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |              .short("s")
[INFO] [stdout]    |                     ^^^ expected `char`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `help` found for struct `Arg<'_>` in the current scope
[INFO] [stdout]   --> src/main.rs:65:15
[INFO] [stdout]    |
[INFO] [stdout] 65 |              .help("Sets the first term of the series.")
[INFO] [stdout]    |               ^^^^ method not found in `Arg<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |              .short("c")
[INFO] [stdout]    |                     ^^^ expected `char`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `help` found for struct `Arg<'_>` in the current scope
[INFO] [stdout]   --> src/main.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |              .help("Sets the length of the series.")
[INFO] [stdout]    |               ^^^^ method not found in `Arg<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |              .short("o")
[INFO] [stdout]    |                     ^^^ expected `char`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `help` found for struct `Arg<'_>` in the current scope
[INFO] [stdout]   --> src/main.rs:75:15
[INFO] [stdout]    |
[INFO] [stdout] 75 |              .help("Defines the operations used to create the series, e.g. \"+3 *2\"")
[INFO] [stdout]    |               ^^^^ method not found in `Arg<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `iter` found for struct `clap::Values<'_>` in the current scope
[INFO] [stdout]    --> src/main.rs:107:32
[INFO] [stdout]     |
[INFO] [stdout] 107 |         Some(values) => values.iter().filter_map(|s| s.parse().ok()).collect(),
[INFO] [stdout]     |                                ^^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `recurrence_relations`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b5a3255e0e1284385b82b6ebcf2e39dbc3873fa26175b30aa608ecb2b2ee2f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a3255e0e1284385b82b6ebcf2e39dbc3873fa26175b30aa608ecb2b2ee2f70", kill_on_drop: false }`
[INFO] [stdout] b5a3255e0e1284385b82b6ebcf2e39dbc3873fa26175b30aa608ecb2b2ee2f70