[INFO] fetching crate tbn 0.4.4...
[INFO] checking tbn-0.4.4 against 1.55.0 for beta-1.56-3
[INFO] extracting crate tbn 0.4.4 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate tbn 0.4.4 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 crates.io crate tbn 0.4.4
[INFO] finished tweaking crates.io crate tbn 0.4.4
[INFO] tweaked toml for crates.io crate tbn 0.4.4 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate tbn 0.4.4 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 byteorder v1.4.2
[INFO] [stderr]   Downloaded bincode v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 65af8130b256a3c701604ef3beaf0c78aa79dd38b34ffef6d2812dff7b9ab6c1
[INFO] running `Command { std: "docker" "start" "-a" "65af8130b256a3c701604ef3beaf0c78aa79dd38b34ffef6d2812dff7b9ab6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65af8130b256a3c701604ef3beaf0c78aa79dd38b34ffef6d2812dff7b9ab6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65af8130b256a3c701604ef3beaf0c78aa79dd38b34ffef6d2812dff7b9ab6c1", kill_on_drop: false }`
[INFO] [stdout] 65af8130b256a3c701604ef3beaf0c78aa79dd38b34ffef6d2812dff7b9ab6c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 2ec6c43aab90809b50c36f61d02ab2efa57a6dfa888bd6f8ebfecc12eeee333e
[INFO] running `Command { std: "docker" "start" "-a" "2ec6c43aab90809b50c36f61d02ab2efa57a6dfa888bd6f8ebfecc12eeee333e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking bincode v0.6.1
[INFO] [stderr]     Checking tbn v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/lib.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/lib.rs:25:64
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:135:48
[INFO] [stdout]     |
[INFO] [stdout] 135 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:135:64
[INFO] [stdout]     |
[INFO] [stdout] 135 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:333:48
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:333:64
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:445:48
[INFO] [stdout]     |
[INFO] [stdout] 445 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:445:64
[INFO] [stdout]     |
[INFO] [stdout] 445 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:482:48
[INFO] [stdout]     |
[INFO] [stdout] 482 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:482:64
[INFO] [stdout]     |
[INFO] [stdout] 482 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:649:48
[INFO] [stdout]     |
[INFO] [stdout] 649 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:649:64
[INFO] [stdout]     |
[INFO] [stdout] 649 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/lib.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/lib.rs:25:64
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:135:48
[INFO] [stdout]     |
[INFO] [stdout] 135 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:135:64
[INFO] [stdout]     |
[INFO] [stdout] 135 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:333:48
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:333:64
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:445:48
[INFO] [stdout]     |
[INFO] [stdout] 445 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:445:64
[INFO] [stdout]     |
[INFO] [stdout] 445 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:482:48
[INFO] [stdout]     |
[INFO] [stdout] 482 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:482:64
[INFO] [stdout]     |
[INFO] [stdout] 482 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:649:48
[INFO] [stdout]     |
[INFO] [stdout] 649 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> src/lib.rs:649:64
[INFO] [stdout]     |
[INFO] [stdout] 649 | #[cfg_attr(feature = "rustc-serialize", derive(RustcDecodable, RustcEncodable))]
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/api.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tbn` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2ec6c43aab90809b50c36f61d02ab2efa57a6dfa888bd6f8ebfecc12eeee333e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec6c43aab90809b50c36f61d02ab2efa57a6dfa888bd6f8ebfecc12eeee333e", kill_on_drop: false }`
[INFO] [stdout] 2ec6c43aab90809b50c36f61d02ab2efa57a6dfa888bd6f8ebfecc12eeee333e
