[INFO] cloning repository https://github.com/eugenesimakin/btclient
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eugenesimakin/btclient" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesimakin%2Fbtclient", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesimakin%2Fbtclient'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd9f5b6910a60c6b806529c8a759b1c9acca1af3
[INFO] checking eugenesimakin/btclient against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesimakin%2Fbtclient" "/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/eugenesimakin/btclient on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eugenesimakin/btclient
[INFO] finished tweaking git repo https://github.com/eugenesimakin/btclient
[INFO] tweaked toml for git repo https://github.com/eugenesimakin/btclient written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/eugenesimakin/btclient already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/nomyfan/bencodex`
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d72e93a5c978ff6da8f480fd0404fad1bc314f4d51c8b6e7afbc9d3f1464a441
[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" "d72e93a5c978ff6da8f480fd0404fad1bc314f4d51c8b6e7afbc9d3f1464a441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d72e93a5c978ff6da8f480fd0404fad1bc314f4d51c8b6e7afbc9d3f1464a441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72e93a5c978ff6da8f480fd0404fad1bc314f4d51c8b6e7afbc9d3f1464a441", kill_on_drop: false }`
[INFO] [stdout] d72e93a5c978ff6da8f480fd0404fad1bc314f4d51c8b6e7afbc9d3f1464a441
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f99443ba64029a232b3475c3f00f4cb7330c7dec88da87ec1e9dcb224255ddb0
[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" "f99443ba64029a232b3475c3f00f4cb7330c7dec88da87ec1e9dcb224255ddb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking bencodex v0.1.3 (https://github.com/nomyfan/bencodex#6719ebc4)
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking my-btclient-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/file/mod.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn info_hash(data: &Vec<u8>) -> Result<String, String> {
[INFO] [stdout]    |            ---------                    ^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::result::Result<std::string::String, std::string::String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/bencode_decoder.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse(bytes: &[u8]) -> Result<Object, String> {
[INFO] [stdout]   |        -----                  ^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout]   = note:   expected enum `std::result::Result<bencode_decoder::Object, std::string::String>`
[INFO] [stdout]           found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/file/mod.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn info_hash(data: &Vec<u8>) -> Result<String, String> {
[INFO] [stdout]    |            ---------                    ^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::result::Result<std::string::String, std::string::String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-btclient-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/bencode_decoder.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse(bytes: &[u8]) -> Result<Object, String> {
[INFO] [stdout]   |        -----                  ^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout]   = note:   expected enum `std::result::Result<bencode_decoder::Object, std::string::String>`
[INFO] [stdout]           found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f99443ba64029a232b3475c3f00f4cb7330c7dec88da87ec1e9dcb224255ddb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99443ba64029a232b3475c3f00f4cb7330c7dec88da87ec1e9dcb224255ddb0", kill_on_drop: false }`
[INFO] [stdout] f99443ba64029a232b3475c3f00f4cb7330c7dec88da87ec1e9dcb224255ddb0