[INFO] cloning repository https://github.com/archer884/left-pad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/left-pad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fleft-pad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fleft-pad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4625b187e3acd309c1320a829d87cb3c7d0dd5bf
[INFO] testing archer884/left-pad 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%2Fleft-pad" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/left-pad 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/left-pad
[INFO] finished tweaking git repo https://github.com/archer884/left-pad
[INFO] tweaked toml for git repo https://github.com/archer884/left-pad written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/left-pad 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] error: the lock file /workspace/builds/worker-6/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[INFO] the lockfile is outdated, regenerating it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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2c91b29e364fd2b21c8ae977254b032fe7a4921c80e09a5ef6cffc8bd0c42c3c
[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" "2c91b29e364fd2b21c8ae977254b032fe7a4921c80e09a5ef6cffc8bd0c42c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c91b29e364fd2b21c8ae977254b032fe7a4921c80e09a5ef6cffc8bd0c42c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c91b29e364fd2b21c8ae977254b032fe7a4921c80e09a5ef6cffc8bd0c42c3c", kill_on_drop: false }`
[INFO] [stdout] 2c91b29e364fd2b21c8ae977254b032fe7a4921c80e09a5ef6cffc8bd0c42c3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 072c6d39b9d6f9e4e3cb197cd5e81b29d5f8e6305e28484e3cd211ed94cd09c8
[INFO] running `Command { std: "docker" "start" "-a" "072c6d39b9d6f9e4e3cb197cd5e81b29d5f8e6305e28484e3cd211ed94cd09c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling router v0.6.0
[INFO] [stderr]    Compiling left-pad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: no rules expected the token `"/"`
[INFO] [stdout]   --> src/main.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         get "/" => help,
[INFO] [stdout]    |             ^^^ no rules expected this token in macro call
[INFO] [stdout] 
[INFO] [stdout] 
[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(box_syntax, question_mark)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `iron::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/params.rs:35:66
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let response = Response::with((status::BadRequest, error.description()));
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `iron::Url::into_generic_url`: use `into` from the `Into` trait instead
[INFO] [stdout]   --> src/params.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let query = url.clone().into_generic_url();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/params.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     match query.query_pairs() {
[INFO] [stdout]    |           ------------------- this expression has type `Parse<'_>`
[INFO] [stdout] 46 |         None => Err(ParamsError::MissingParams),
[INFO] [stdout]    |         ^^^^ expected struct `Parse`, found enum `Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Parse<'_>`
[INFO] [stdout]                 found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/params.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     match query.query_pairs() {
[INFO] [stdout]    |           ------------------- this expression has type `Parse<'_>`
[INFO] [stdout] 46 |         None => Err(ParamsError::MissingParams),
[INFO] [stdout] 47 |         Some(query_params) => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ expected struct `Parse`, found enum `Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Parse<'_>`
[INFO] [stdout]                 found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `left-pad`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "072c6d39b9d6f9e4e3cb197cd5e81b29d5f8e6305e28484e3cd211ed94cd09c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072c6d39b9d6f9e4e3cb197cd5e81b29d5f8e6305e28484e3cd211ed94cd09c8", kill_on_drop: false }`
[INFO] [stdout] 072c6d39b9d6f9e4e3cb197cd5e81b29d5f8e6305e28484e3cd211ed94cd09c8