[INFO] cloning repository https://github.com/antonmisa/rust_simple_http_rocket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antonmisa/rust_simple_http_rocket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_simple_http_rocket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_simple_http_rocket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f30aa8524c33d735cc2716d43b460577deb1132
[INFO] checking antonmisa/rust_simple_http_rocket against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonmisa%2Frust_simple_http_rocket" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antonmisa/rust_simple_http_rocket on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/antonmisa/rust_simple_http_rocket
[INFO] finished tweaking git repo https://github.com/antonmisa/rust_simple_http_rocket
[INFO] tweaked toml for git repo https://github.com/antonmisa/rust_simple_http_rocket written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/antonmisa/rust_simple_http_rocket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 707a5eb81e4ab9fa76c3205f212f48477f7c381c2058e4064b411d6c77970904
[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" "707a5eb81e4ab9fa76c3205f212f48477f7c381c2058e4064b411d6c77970904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "707a5eb81e4ab9fa76c3205f212f48477f7c381c2058e4064b411d6c77970904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707a5eb81e4ab9fa76c3205f212f48477f7c381c2058e4064b411d6c77970904", kill_on_drop: false }`
[INFO] [stdout] 707a5eb81e4ab9fa76c3205f212f48477f7c381c2058e4064b411d6c77970904
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1418a3e2593127081a67371d39a8eab6c51ddf151ec875327a186797986dfd44
[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" "1418a3e2593127081a67371d39a8eab6c51ddf151ec875327a186797986dfd44", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling tinyvec v0.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling zeroize v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking cookie v0.11.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stderr]    Compiling pear v0.1.4
[INFO] [stderr]     Checking rocket_http v0.4.5
[INFO] [stderr]     Checking rocket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]   --> src/main.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |  / fn main() {
[INFO] [stdout] 13 |  |     let config = Config::build(Environment::Staging)
[INFO] [stdout]    |  |__________________^
[INFO] [stdout] 14 | ||         .address("0.0.0.0")
[INFO] [stdout] 15 | ||         .port(8000)
[INFO] [stdout] 16 | ||         .finalize()?;
[INFO] [stdout]    | ||____________________^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 17 |  |     
[INFO] [stdout] 18 |  |     rocket::custom(config).mount("/", routes![index]).launch();
[INFO] [stdout] 19 |  | }
[INFO] [stdout]    |  |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]   --> src/main.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |  / fn main() {
[INFO] [stdout] 13 |  |     let config = Config::build(Environment::Staging)
[INFO] [stdout]    |  |__________________^
[INFO] [stdout] 14 | ||         .address("0.0.0.0")
[INFO] [stdout] 15 | ||         .port(8000)
[INFO] [stdout] 16 | ||         .finalize()?;
[INFO] [stdout]    | ||____________________^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 17 |  |     
[INFO] [stdout] 18 |  |     rocket::custom(config).mount("/", routes![index]).launch();
[INFO] [stdout] 19 |  | }
[INFO] [stdout]    |  |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_error`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1418a3e2593127081a67371d39a8eab6c51ddf151ec875327a186797986dfd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1418a3e2593127081a67371d39a8eab6c51ddf151ec875327a186797986dfd44", kill_on_drop: false }`
[INFO] [stdout] 1418a3e2593127081a67371d39a8eab6c51ddf151ec875327a186797986dfd44