[INFO] cloning repository https://github.com/robonafisi/RustPractice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robonafisi/RustPractice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobonafisi%2FRustPractice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobonafisi%2FRustPractice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a625fe0668b9ea2e01d91cd7acf3055719cb54eb
[INFO] checking robonafisi/RustPractice against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobonafisi%2FRustPractice" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robonafisi/RustPractice
[INFO] finished tweaking git repo https://github.com/robonafisi/RustPractice
[INFO] tweaked toml for git repo https://github.com/robonafisi/RustPractice written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robonafisi/RustPractice on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robonafisi/RustPractice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 363fd96e1dca528dfabe7d98a9b146a439f8a72f614c33418585b8a8efb75b24
[INFO] running `Command { std: "docker" "start" "-a" "363fd96e1dca528dfabe7d98a9b146a439f8a72f614c33418585b8a8efb75b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "363fd96e1dca528dfabe7d98a9b146a439f8a72f614c33418585b8a8efb75b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363fd96e1dca528dfabe7d98a9b146a439f8a72f614c33418585b8a8efb75b24", kill_on_drop: false }`
[INFO] [stdout] 363fd96e1dca528dfabe7d98a9b146a439f8a72f614c33418585b8a8efb75b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba6b92d5fb242fbfbf17283ebf66057e169b1242c1b336182a26dd96824d0766
[INFO] running `Command { std: "docker" "start" "-a" "ba6b92d5fb242fbfbf17283ebf66057e169b1242c1b336182a26dd96824d0766", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking datatrenches v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 21 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 33 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 42 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 48 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 60 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 74 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 84 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:94:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 94 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 104 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:124:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 124 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:133:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 133 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:142:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 142 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 152 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 21 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 33 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 42 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 48 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 60 | fn main(){
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 74 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 84 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]   --> src/main.rs:94:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { 
[INFO] [stdout]    | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 94 | fn main() {
[INFO] [stdout]    | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 104 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:124:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 124 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:133:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 133 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:142:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 142 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `main` is defined multiple times
[INFO] [stdout]    --> src/main.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout]  10 | fn main() { 
[INFO] [stdout]     | --------- previous definition of the value `main` here
[INFO] [stdout] ...
[INFO] [stdout] 152 | fn main(){
[INFO] [stdout]     | ^^^^^^^^^ `main` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `main` must be defined only once in the value namespace of this module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `datatrenches` (bin "datatrenches") due to 13 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `datatrenches` (bin "datatrenches" test) due to 13 previous errors
[INFO] running `Command { std: "docker" "inspect" "ba6b92d5fb242fbfbf17283ebf66057e169b1242c1b336182a26dd96824d0766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6b92d5fb242fbfbf17283ebf66057e169b1242c1b336182a26dd96824d0766", kill_on_drop: false }`
[INFO] [stdout] ba6b92d5fb242fbfbf17283ebf66057e169b1242c1b336182a26dd96824d0766