[INFO] fetching crate sylt-typechecker 0.1.0...
[INFO] checking sylt-typechecker-0.1.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate sylt-typechecker 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sylt-typechecker 0.1.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sylt-typechecker 0.1.0
[INFO] finished tweaking crates.io crate sylt-typechecker 0.1.0
[INFO] tweaked toml for crates.io crate sylt-typechecker 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding logos v0.12.1 (latest: v0.14.1)
[INFO] [stderr]       Adding logos-derive v0.12.1 (latest: v0.14.1)
[INFO] [stderr]       Adding owo-colors v2.1.0 (latest: v4.0.0)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.4)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sylt-common v0.1.0
[INFO] [stderr]   Downloaded sylt-tokenizer v0.1.0
[INFO] [stderr]   Downloaded owo-colors v2.1.0
[INFO] [stderr]   Downloaded sylt-macro v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c51f2c635cff6c49012537cff2385641e251731515f3de8fc75b1fb4c1ca6ff0
[INFO] running `Command { std: "docker" "start" "-a" "c51f2c635cff6c49012537cff2385641e251731515f3de8fc75b1fb4c1ca6ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51f2c635cff6c49012537cff2385641e251731515f3de8fc75b1fb4c1ca6ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51f2c635cff6c49012537cff2385641e251731515f3de8fc75b1fb4c1ca6ff0", kill_on_drop: false }`
[INFO] [stdout] c51f2c635cff6c49012537cff2385641e251731515f3de8fc75b1fb4c1ca6ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0f4f226e02d707303946c7ebbbd71a529fe4f835b1b70b5cef3a3cbe872789
[INFO] running `Command { std: "docker" "start" "-a" "2b0f4f226e02d707303946c7ebbbd71a529fe4f835b1b70b5cef3a3cbe872789", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking owo-colors v2.1.0
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling sylt-macro v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]     Checking sylt-tokenizer v0.1.0
[INFO] [stderr]     Checking sylt-common v0.1.0
[INFO] [stderr]     Checking sylt-typechecker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/typechecker.rs:11:46
[INFO] [stdout]     |
[INFO] [stdout] 11  |         return Err($thing.error($kind, None));
[INFO] [stdout]     |                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 823 |                     error!(self, RuntimeError::TypeError(op, vec![a.into()]))
[INFO] [stdout]     |                     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `error`
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/typechecker.rs:11:46
[INFO] [stdout]     |
[INFO] [stdout] 11  |         return Err($thing.error($kind, None));
[INFO] [stdout]     |                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 823 |                     error!(self, RuntimeError::TypeError(op, vec![a.into()]))
[INFO] [stdout]     |                     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `error`
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: sylt-typechecker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2b0f4f226e02d707303946c7ebbbd71a529fe4f835b1b70b5cef3a3cbe872789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0f4f226e02d707303946c7ebbbd71a529fe4f835b1b70b5cef3a3cbe872789", kill_on_drop: false }`
[INFO] [stdout] 2b0f4f226e02d707303946c7ebbbd71a529fe4f835b1b70b5cef3a3cbe872789