[INFO] cloning repository https://github.com/wastevensv/cbor-telemetry-relay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wastevensv/cbor-telemetry-relay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwastevensv%2Fcbor-telemetry-relay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwastevensv%2Fcbor-telemetry-relay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97ca70e6a950520ece008075d4243e9af34adb4b
[INFO] checking wastevensv/cbor-telemetry-relay against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwastevensv%2Fcbor-telemetry-relay" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wastevensv/cbor-telemetry-relay on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wastevensv/cbor-telemetry-relay
[INFO] finished tweaking git repo https://github.com/wastevensv/cbor-telemetry-relay
[INFO] tweaked toml for git repo https://github.com/wastevensv/cbor-telemetry-relay written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wastevensv/cbor-telemetry-relay 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.5.1
[INFO] [stderr]   Downloaded cobs v0.1.3
[INFO] [stderr]   Downloaded proc-macro2 v0.3.6
[INFO] [stderr]   Downloaded serde v1.0.37
[INFO] [stderr]   Downloaded serde_cbor v0.8.2
[INFO] [stderr]   Downloaded serde_derive v1.0.39
[INFO] [stderr]   Downloaded syn v0.13.1
[INFO] [stderr]   Downloaded serde_json v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54a277035797628ec67d1e53289ce6608cd598a00eb87ca1dd2d6b02aee2dae0
[INFO] running `Command { std: "docker" "start" "-a" "54a277035797628ec67d1e53289ce6608cd598a00eb87ca1dd2d6b02aee2dae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54a277035797628ec67d1e53289ce6608cd598a00eb87ca1dd2d6b02aee2dae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a277035797628ec67d1e53289ce6608cd598a00eb87ca1dd2d6b02aee2dae0", kill_on_drop: false }`
[INFO] [stdout] 54a277035797628ec67d1e53289ce6608cd598a00eb87ca1dd2d6b02aee2dae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 862e0db0bb9fb4052d9205be3411201a4bbc62686753e1ce982b7d72eead0f8c
[INFO] running `Command { std: "docker" "start" "-a" "862e0db0bb9fb4052d9205be3411201a4bbc62686753e1ce982b7d72eead0f8c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking serde v1.0.37
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking cobs v0.1.3
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.39
[INFO] [stderr]     Checking serde_cbor v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.15
[INFO] [stderr]     Checking receiver-cbor v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/bin_receiver.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/bin_receiver.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/bin_proxy.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/bin_proxy.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/proxy_error.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ProxyError::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/proxy_error.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |             ProxyError::UnpackError(ref err) => err.description(),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/proxy_error.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |             ProxyError::IoError(ref err) => err.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/proxy_error.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |             ProxyError::UnpackError(ref err) => err.description(),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "862e0db0bb9fb4052d9205be3411201a4bbc62686753e1ce982b7d72eead0f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862e0db0bb9fb4052d9205be3411201a4bbc62686753e1ce982b7d72eead0f8c", kill_on_drop: false }`
[INFO] [stdout] 862e0db0bb9fb4052d9205be3411201a4bbc62686753e1ce982b7d72eead0f8c