[INFO] cloning repository https://github.com/tiffany352/tifflang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiffany352/tifflang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiffany352%2Ftifflang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiffany352%2Ftifflang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 61df2ad44a8e3c930f1913562be669d5f30cfe90 [INFO] checking tiffany352/tifflang against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiffany352%2Ftifflang" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tiffany352/tifflang on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tiffany352/tifflang [INFO] finished tweaking git repo https://github.com/tiffany352/tifflang [INFO] tweaked toml for git repo https://github.com/tiffany352/tifflang written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/tiffany352/tifflang already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 21dc02f8d30163e15fa6f09003c90583d51d7902411e2b72052ed5f96ead9e0c [INFO] running `Command { std: "docker" "start" "-a" "21dc02f8d30163e15fa6f09003c90583d51d7902411e2b72052ed5f96ead9e0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "21dc02f8d30163e15fa6f09003c90583d51d7902411e2b72052ed5f96ead9e0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21dc02f8d30163e15fa6f09003c90583d51d7902411e2b72052ed5f96ead9e0c", kill_on_drop: false }` [INFO] [stdout] 21dc02f8d30163e15fa6f09003c90583d51d7902411e2b72052ed5f96ead9e0c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0a8392b8e962023036e41a75feae7c51c2384b903116d27242cf9808ccc3d3b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d0a8392b8e962023036e41a75feae7c51c2384b903116d27242cf9808ccc3d3b", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking web-assembler v0.1.0 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Checking memchr v2.0.2 [INFO] [stderr] Checking aho-corasick v0.6.8 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex v1.0.5 [INFO] [stderr] Checking tifflang v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parser.rs:7:39 [INFO] [stdout] | [INFO] [stdout] 7 | pub type TokenIterator = Peekable>>>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:19 [INFO] [stdout] | [INFO] [stdout] 51 | let iter: Box>> = Box::new(tokens.into_iter()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parser.rs:7:39 [INFO] [stdout] | [INFO] [stdout] 7 | pub type TokenIterator = Peekable>>>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:19 [INFO] [stdout] | [INFO] [stdout] 51 | let iter: Box>> = Box::new(tokens.into_iter()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Function` [INFO] [stdout] --> src/typecheck.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | / Function { [INFO] [stdout] 47 | | result: Box, [INFO] [stdout] 48 | | args: Vec, [INFO] [stdout] 49 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Function` [INFO] [stdout] --> src/typecheck.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | / Function { [INFO] [stdout] 47 | | result: Box, [INFO] [stdout] 48 | | args: Vec, [INFO] [stdout] 49 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.81s [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d0a8392b8e962023036e41a75feae7c51c2384b903116d27242cf9808ccc3d3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0a8392b8e962023036e41a75feae7c51c2384b903116d27242cf9808ccc3d3b", kill_on_drop: false }` [INFO] [stdout] d0a8392b8e962023036e41a75feae7c51c2384b903116d27242cf9808ccc3d3b