[INFO] cloning repository https://github.com/CircuitCoder/MeowRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CircuitCoder/MeowRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c17465224d226777e5d4abe04f74edb19cfa7f7a
[INFO] testing CircuitCoder/MeowRust against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2FMeowRust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CircuitCoder/MeowRust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-14/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 959478fa64276795b328a62cb8402e984c4d6e6e82966fc608156f1fc64ddecc
[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" "959478fa64276795b328a62cb8402e984c4d6e6e82966fc608156f1fc64ddecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "959478fa64276795b328a62cb8402e984c4d6e6e82966fc608156f1fc64ddecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959478fa64276795b328a62cb8402e984c4d6e6e82966fc608156f1fc64ddecc", kill_on_drop: false }`
[INFO] [stdout] 959478fa64276795b328a62cb8402e984c4d6e6e82966fc608156f1fc64ddecc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d20e50ef0e8327fc96fbcd7b60f3e204fa399ef0a58fb6edcbc77aba13a0592d
[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" "d20e50ef0e8327fc96fbcd7b60f3e204fa399ef0a58fb6edcbc77aba13a0592d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[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 46.10s
[INFO] running `Command { std: "docker" "inspect" "d20e50ef0e8327fc96fbcd7b60f3e204fa399ef0a58fb6edcbc77aba13a0592d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d20e50ef0e8327fc96fbcd7b60f3e204fa399ef0a58fb6edcbc77aba13a0592d", kill_on_drop: false }`
[INFO] [stdout] d20e50ef0e8327fc96fbcd7b60f3e204fa399ef0a58fb6edcbc77aba13a0592d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a6285b9b60bc11f774cdc22df277b112832fff0b6afe57b0e6fa65d22ef72ff
[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" "2a6285b9b60bc11f774cdc22df277b112832fff0b6afe57b0e6fa65d22ef72ff", 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 2.86s
[INFO] running `Command { std: "docker" "inspect" "2a6285b9b60bc11f774cdc22df277b112832fff0b6afe57b0e6fa65d22ef72ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6285b9b60bc11f774cdc22df277b112832fff0b6afe57b0e6fa65d22ef72ff", kill_on_drop: false }`
[INFO] [stdout] 2a6285b9b60bc11f774cdc22df277b112832fff0b6afe57b0e6fa65d22ef72ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 985e7ee2d376347062956b0d84a8488599f59509dca54ee707e7757ee86ea595
[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" "985e7ee2d376347062956b0d84a8488599f59509dca54ee707e7757ee86ea595", 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 0.27s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/meow_rust-77ad671a29366309
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "985e7ee2d376347062956b0d84a8488599f59509dca54ee707e7757ee86ea595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "985e7ee2d376347062956b0d84a8488599f59509dca54ee707e7757ee86ea595", kill_on_drop: false }`
[INFO] [stdout] 985e7ee2d376347062956b0d84a8488599f59509dca54ee707e7757ee86ea595