[INFO] cloning repository https://github.com/shhac/env-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shhac/env-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhac%2Fenv-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhac%2Fenv-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 043da9bc420448cba3d6b26c62c76d7d2efa9d0e
[INFO] testing shhac/env-gen 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%2Fshhac%2Fenv-gen" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shhac/env-gen 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/shhac/env-gen
[INFO] finished tweaking git repo https://github.com/shhac/env-gen
[INFO] tweaked toml for git repo https://github.com/shhac/env-gen written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/shhac/env-gen 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f551d43b2a341f42f52cd2ebc2fc1c0103d97389f2dfaee52350707efda7493b
[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" "f551d43b2a341f42f52cd2ebc2fc1c0103d97389f2dfaee52350707efda7493b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f551d43b2a341f42f52cd2ebc2fc1c0103d97389f2dfaee52350707efda7493b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f551d43b2a341f42f52cd2ebc2fc1c0103d97389f2dfaee52350707efda7493b", kill_on_drop: false }`
[INFO] [stdout] f551d43b2a341f42f52cd2ebc2fc1c0103d97389f2dfaee52350707efda7493b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 544b17f82236b3ba419eceb10b5cfef054614ccdae7366154a00c8de04599b55
[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" "544b17f82236b3ba419eceb10b5cfef054614ccdae7366154a00c8de04599b55", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling console v0.7.5
[INFO] [stderr]    Compiling dialoguer v0.3.0
[INFO] [stderr]    Compiling env-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `super::question`
[INFO] [stdout]  --> src/ask.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::question;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `question` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `super::question`
[INFO] [stdout]  --> src/yaml.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::question;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `question` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/yaml.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     for (a) in v["answers"] {
[INFO] [stdout]    |         ^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `&Yaml` is not an iterator
[INFO] [stdout]   --> src/yaml.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |   for (k, v) in doc {
[INFO] [stdout]    |                 ^^^ `&Yaml` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Iterator` is not implemented for `&Yaml`
[INFO] [stdout]    = note: required because of the requirements on the impl of `IntoIterator` for `&Yaml`
[INFO] [stdout]    = note: required by `into_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/yaml.rs:54:25
[INFO] [stdout]    |
[INFO] [stdout] 54 |   return dump_questions(&y);
[INFO] [stdout]    |                         ^^ expected enum `Yaml`, found struct `Vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&Yaml`
[INFO] [stdout]               found reference `&Vec<Yaml>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `env-gen`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "544b17f82236b3ba419eceb10b5cfef054614ccdae7366154a00c8de04599b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "544b17f82236b3ba419eceb10b5cfef054614ccdae7366154a00c8de04599b55", kill_on_drop: false }`
[INFO] [stdout] 544b17f82236b3ba419eceb10b5cfef054614ccdae7366154a00c8de04599b55