[INFO] cloning repository https://github.com/BuggerSee/WaltonProxy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BuggerSee/WaltonProxy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBuggerSee%2FWaltonProxy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBuggerSee%2FWaltonProxy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf24779d3a158ec600eae7022a0ea78406b0224b
[INFO] checking BuggerSee/WaltonProxy against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBuggerSee%2FWaltonProxy" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BuggerSee/WaltonProxy on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BuggerSee/WaltonProxy
[INFO] finished tweaking git repo https://github.com/BuggerSee/WaltonProxy
[INFO] tweaked toml for git repo https://github.com/BuggerSee/WaltonProxy written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/BuggerSee/WaltonProxy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded byteorder v1.2.3
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded atty v0.2.10
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded rand_core v0.2.1
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded rand v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 556b15ffbc9890782e3a5a84d582bb4ba03de0f85c97bc8f7db968ca828efafc
[INFO] running `Command { std: "docker" "start" "-a" "556b15ffbc9890782e3a5a84d582bb4ba03de0f85c97bc8f7db968ca828efafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "556b15ffbc9890782e3a5a84d582bb4ba03de0f85c97bc8f7db968ca828efafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556b15ffbc9890782e3a5a84d582bb4ba03de0f85c97bc8f7db968ca828efafc", kill_on_drop: false }`
[INFO] [stdout] 556b15ffbc9890782e3a5a84d582bb4ba03de0f85c97bc8f7db968ca828efafc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14f6f072058e68f55710411f1986592fcd7be5dc9f057dca45a6401baa95f2a2
[INFO] running `Command { std: "docker" "start" "-a" "14f6f072058e68f55710411f1986592fcd7be5dc9f057dca45a6401baa95f2a2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking rand v0.5.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking WaltonProxy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `enable_ansi_support` in crate `ansi_term`
[INFO] [stdout]   --> src/main.rs:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let _enabled = ansi_term::enable_ansi_support();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `ansi_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_string_new)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(extern_prelude)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `enable_ansi_support` in crate `ansi_term`
[INFO] [stdout]   --> src/main.rs:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let _enabled = ansi_term::enable_ansi_support();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ not found in `ansi_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_string_new)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(extern_prelude)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `WaltonProxy` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "14f6f072058e68f55710411f1986592fcd7be5dc9f057dca45a6401baa95f2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f6f072058e68f55710411f1986592fcd7be5dc9f057dca45a6401baa95f2a2", kill_on_drop: false }`
[INFO] [stdout] 14f6f072058e68f55710411f1986592fcd7be5dc9f057dca45a6401baa95f2a2