[INFO] fetching crate bcsat 0.1.0...
[INFO] testing bcsat-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate bcsat 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate bcsat 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bcsat 0.1.0
[INFO] finished tweaking crates.io crate bcsat 0.1.0
[INFO] tweaked toml for crates.io crate bcsat 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e95fb6f4b43b19cc88a871e430e318d911f510c5abdc1c14ea577701ad84d84a
[INFO] running `Command { std: "docker" "start" "-a" "e95fb6f4b43b19cc88a871e430e318d911f510c5abdc1c14ea577701ad84d84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e95fb6f4b43b19cc88a871e430e318d911f510c5abdc1c14ea577701ad84d84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95fb6f4b43b19cc88a871e430e318d911f510c5abdc1c14ea577701ad84d84a", kill_on_drop: false }`
[INFO] [stdout] e95fb6f4b43b19cc88a871e430e318d911f510c5abdc1c14ea577701ad84d84a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32489e5b138a1f690361009f2556b7ebd013ab4df9a6f65700fb076d31b1a8a8
[INFO] running `Command { std: "docker" "start" "-a" "32489e5b138a1f690361009f2556b7ebd013ab4df9a6f65700fb076d31b1a8a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling bcsat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/printer/mod.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     try!(write!(f, "({})", l.0.display(elem)));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/printer/mod.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |                         try!(write!(f, " {} ({})", op.short(), l.0.display(elem)));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/printer/mod.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             try!(write!(f, "({}", self.0.display(elem)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/printer/mod.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 try!(write!(f, ", {}", self.0.display(elem)));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/printer/mod.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(write!(f, "BC1.1\n"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/printer/mod.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             try!(write!(f, "{}\n", self.0.display(statement)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bcsat` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "32489e5b138a1f690361009f2556b7ebd013ab4df9a6f65700fb076d31b1a8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32489e5b138a1f690361009f2556b7ebd013ab4df9a6f65700fb076d31b1a8a8", kill_on_drop: false }`
[INFO] [stdout] 32489e5b138a1f690361009f2556b7ebd013ab4df9a6f65700fb076d31b1a8a8