[INFO] updating cached repository https://github.com/CircuitCoder/MeowRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c17465224d226777e5d4abe04f74edb19cfa7f7a
[INFO] testing CircuitCoder/MeowRust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowRust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CircuitCoder/MeowRust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CircuitCoder/MeowRust
[INFO] finished tweaking git repo https://github.com/CircuitCoder/MeowRust
[INFO] tweaked toml for git repo https://github.com/CircuitCoder/MeowRust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/CircuitCoder/MeowRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bde24acabbe95ad3eb9cee91a570347606fe7765ad60f361da54f70747bc66b
[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" "8bde24acabbe95ad3eb9cee91a570347606fe7765ad60f361da54f70747bc66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bde24acabbe95ad3eb9cee91a570347606fe7765ad60f361da54f70747bc66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bde24acabbe95ad3eb9cee91a570347606fe7765ad60f361da54f70747bc66b", kill_on_drop: false }`
[INFO] [stdout] 8bde24acabbe95ad3eb9cee91a570347606fe7765ad60f361da54f70747bc66b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5116021ee458cf2d4d453e7f4d464e689d6eaac7eae9455c952b6ca44b09900
[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" "f5116021ee458cf2d4d453e7f4d464e689d6eaac7eae9455c952b6ca44b09900", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.2
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling paw v1.0.0
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling structopt v0.3.4
[INFO] [stderr]    Compiling meow_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::literal::*`
[INFO] [stdout]  --> src/parser/type.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::literal::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SameAs`
[INFO] [stdout]   --> src/grammar/type.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   SameAs(Rc<Type<'a>>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/grammar/mod.rs:28:3
[INFO] [stdout]    |
[INFO] [stdout] 28 |   Float(f64),
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `SimplePath`
[INFO] [stdout]   --> src/grammar/mod.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type SimplePath<'a> = Path<'a, ()>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Range`
[INFO] [stdout]    --> src/grammar/mod.rs:141:3
[INFO] [stdout]     |
[INFO] [stdout] 141 | /   Range {
[INFO] [stdout] 142 | |     from: Option<Box<Expr<'a>>>,
[INFO] [stdout] 143 | |     to: Option<Box<Expr<'a>>>,
[INFO] [stdout] 144 | |   },
[INFO] [stdout]     | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]    --> src/grammar/mod.rs:189:3
[INFO] [stdout]     |
[INFO] [stdout] 189 |   Nothing,
[INFO] [stdout]     |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SEPARATORS`
[INFO] [stdout]  --> src/parser/mod.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SEPARATORS: &'static str = "+-*/%^!&|><=@_.,;:#$?([{)]{";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "f5116021ee458cf2d4d453e7f4d464e689d6eaac7eae9455c952b6ca44b09900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5116021ee458cf2d4d453e7f4d464e689d6eaac7eae9455c952b6ca44b09900", kill_on_drop: false }`
[INFO] [stdout] f5116021ee458cf2d4d453e7f4d464e689d6eaac7eae9455c952b6ca44b09900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b31b3a3b360fc1f778f38e08a15ca7dcb487dbfd5369f878e824d6e78f18add
[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" "8b31b3a3b360fc1f778f38e08a15ca7dcb487dbfd5369f878e824d6e78f18add", kill_on_drop: false }`
[INFO] [stderr]    Compiling meow_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::literal::*`
[INFO] [stdout]  --> src/parser/type.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::literal::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SameAs`
[INFO] [stdout]   --> src/grammar/type.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   SameAs(Rc<Type<'a>>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/grammar/mod.rs:28:3
[INFO] [stdout]    |
[INFO] [stdout] 28 |   Float(f64),
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `SimplePath`
[INFO] [stdout]   --> src/grammar/mod.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type SimplePath<'a> = Path<'a, ()>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Range`
[INFO] [stdout]    --> src/grammar/mod.rs:141:3
[INFO] [stdout]     |
[INFO] [stdout] 141 | /   Range {
[INFO] [stdout] 142 | |     from: Option<Box<Expr<'a>>>,
[INFO] [stdout] 143 | |     to: Option<Box<Expr<'a>>>,
[INFO] [stdout] 144 | |   },
[INFO] [stdout]     | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]    --> src/grammar/mod.rs:189:3
[INFO] [stdout]     |
[INFO] [stdout] 189 |   Nothing,
[INFO] [stdout]     |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SEPARATORS`
[INFO] [stdout]  --> src/parser/mod.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SEPARATORS: &'static str = "+-*/%^!&|><=@_.,;:#$?([{)]{";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "8b31b3a3b360fc1f778f38e08a15ca7dcb487dbfd5369f878e824d6e78f18add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b31b3a3b360fc1f778f38e08a15ca7dcb487dbfd5369f878e824d6e78f18add", kill_on_drop: false }`
[INFO] [stdout] 8b31b3a3b360fc1f778f38e08a15ca7dcb487dbfd5369f878e824d6e78f18add
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b637059a7c46bd289d8dfc90dc3af2ae208a172ab39272a38e74751962d584eb
[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" "b637059a7c46bd289d8dfc90dc3af2ae208a172ab39272a38e74751962d584eb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::literal::*`
[INFO] [stderr]  --> src/parser/type.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::literal::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SameAs`
[INFO] [stderr]   --> src/grammar/type.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   SameAs(Rc<Type<'a>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]   --> src/grammar/mod.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   Float(f64),
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SimplePath`
[INFO] [stderr]   --> src/grammar/mod.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub type SimplePath<'a> = Path<'a, ()>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Range`
[INFO] [stderr]    --> src/grammar/mod.rs:141:3
[INFO] [stderr]     |
[INFO] [stderr] 141 | /   Range {
[INFO] [stderr] 142 | |     from: Option<Box<Expr<'a>>>,
[INFO] [stderr] 143 | |     to: Option<Box<Expr<'a>>>,
[INFO] [stderr] 144 | |   },
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nothing`
[INFO] [stderr]    --> src/grammar/mod.rs:189:3
[INFO] [stderr]     |
[INFO] [stderr] 189 |   Nothing,
[INFO] [stderr]     |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `SEPARATORS`
[INFO] [stderr]  --> src/parser/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const SEPARATORS: &'static str = "+-*/%^!&|><=@_.,;:#$?([{)]{";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/meow_rust-ad525bcea2de3f25
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b637059a7c46bd289d8dfc90dc3af2ae208a172ab39272a38e74751962d584eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b637059a7c46bd289d8dfc90dc3af2ae208a172ab39272a38e74751962d584eb", kill_on_drop: false }`
[INFO] [stdout] b637059a7c46bd289d8dfc90dc3af2ae208a172ab39272a38e74751962d584eb