[INFO] cloning repository https://github.com/ganlvtech/rust-simple-udp-logger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ganlvtech/rust-simple-udp-logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fganlvtech%2Frust-simple-udp-logger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fganlvtech%2Frust-simple-udp-logger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b577b1afc98c37537ce1cc56adfc56d623e20d59
[INFO] testing ganlvtech/rust-simple-udp-logger against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fganlvtech%2Frust-simple-udp-logger" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ganlvtech/rust-simple-udp-logger on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ganlvtech/rust-simple-udp-logger
[INFO] finished tweaking git repo https://github.com/ganlvtech/rust-simple-udp-logger
[INFO] tweaked toml for git repo https://github.com/ganlvtech/rust-simple-udp-logger written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ganlvtech/rust-simple-udp-logger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52b606e16830586fcd328db503cdb1fc078a5faad5e82b9c62459d91f08be171
[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" "52b606e16830586fcd328db503cdb1fc078a5faad5e82b9c62459d91f08be171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52b606e16830586fcd328db503cdb1fc078a5faad5e82b9c62459d91f08be171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b606e16830586fcd328db503cdb1fc078a5faad5e82b9c62459d91f08be171", kill_on_drop: false }`
[INFO] [stdout] 52b606e16830586fcd328db503cdb1fc078a5faad5e82b9c62459d91f08be171
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 1a12eead6c87595a8a45871772f79937bf6a77c6650ea8b063e41f634cc141b7
[INFO] running `Command { std: "docker" "start" "-a" "1a12eead6c87595a8a45871772f79937bf6a77c6650ea8b063e41f634cc141b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling rust-simple-udp-logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
[INFO] [stdout]    --> src/main.rs:39:17
[INFO] [stdout]     |
[INFO] [stdout] 39  |                 eprintln!("JSON decode Failed. Error: {}. Content: {}", e, buf[..n])
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `[u8]`
[INFO] [stdout] note: required by a bound in `ArgumentV1::<'a>::new`
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `[u8]` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:39:76
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 eprintln!("JSON decode Failed. Error: {}. Content: {}", e, buf[..n])
[INFO] [stdout]    |                                                                            ^^^^^^^^ `[u8]` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `[u8]`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-simple-udp-logger` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "1a12eead6c87595a8a45871772f79937bf6a77c6650ea8b063e41f634cc141b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a12eead6c87595a8a45871772f79937bf6a77c6650ea8b063e41f634cc141b7", kill_on_drop: false }`
[INFO] [stdout] 1a12eead6c87595a8a45871772f79937bf6a77c6650ea8b063e41f634cc141b7