[INFO] cloning repository https://github.com/JoshuaRadin37/jodin-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshuaRadin37/jodin-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fjodin-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fjodin-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0a0c0057ef80085e7dfea680c0fe62cf068e855
[INFO] checking JoshuaRadin37/jodin-rs against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRadin37%2Fjodin-rs" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshuaRadin37/jodin-rs on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshuaRadin37/jodin-rs
[INFO] finished tweaking git repo https://github.com/JoshuaRadin37/jodin-rs
[INFO] tweaked toml for git repo https://github.com/JoshuaRadin37/jodin-rs written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshuaRadin37/jodin-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e4b1ec0d501f238f7cb88663311ccb72b2036b6683dd9c4459e470cd2cfc913
[INFO] running `Command { std: "docker" "start" "-a" "1e4b1ec0d501f238f7cb88663311ccb72b2036b6683dd9c4459e470cd2cfc913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e4b1ec0d501f238f7cb88663311ccb72b2036b6683dd9c4459e470cd2cfc913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4b1ec0d501f238f7cb88663311ccb72b2036b6683dd9c4459e470cd2cfc913", kill_on_drop: false }`
[INFO] [stdout] 1e4b1ec0d501f238f7cb88663311ccb72b2036b6683dd9c4459e470cd2cfc913
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c5562af8b0f55a6914c79813992694052d6f6661fb1b6c685f0202e5aafe25f
[INFO] running `Command { std: "docker" "start" "-a" "1c5562af8b0f55a6914c79813992694052d6f6661fb1b6c685f0202e5aafe25f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking lalrpop-util v0.19.6
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling lalrpop v0.19.6
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking jodin-rs-vm v0.1.0 (/opt/rustwide/workdir/jodin-rs-vm)
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> jodin-rs-vm/src/vm.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     stack: Stack,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> jodin-rs-vm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `vars`
[INFO] [stdout]    --> jodin-rs-vm/src/vm.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn vars(&self) -> FrameVarsContext<FrameHeap> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> jodin-rs-vm/src/vm.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     stack: Stack,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> jodin-rs-vm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `vars`
[INFO] [stdout]    --> jodin-rs-vm/src/vm.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn vars(&self) -> FrameVarsContext<FrameHeap> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> jodin-rs-vm/src/vm.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 self.halt.send(());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> jodin-rs-vm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> jodin-rs-vm/src/vm.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 self.halt.send(());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> jodin-rs-vm/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]    Compiling jodin-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate core;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     extern crate core;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:5857:5
[INFO] [stdout]      |
[INFO] [stdout] 5857 |     extern crate core;
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:11660:5
[INFO] [stdout]       |
[INFO] [stdout] 11660 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:16907:5
[INFO] [stdout]       |
[INFO] [stdout] 16907 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:22710:5
[INFO] [stdout]       |
[INFO] [stdout] 22710 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:28513:5
[INFO] [stdout]       |
[INFO] [stdout] 28513 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:34852:5
[INFO] [stdout]       |
[INFO] [stdout] 34852 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:39990:5
[INFO] [stdout]       |
[INFO] [stdout] 39990 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:45164:5
[INFO] [stdout]       |
[INFO] [stdout] 45164 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:51073:5
[INFO] [stdout]       |
[INFO] [stdout] 51073 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:56198:5
[INFO] [stdout]       |
[INFO] [stdout] 56198 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:61323:5
[INFO] [stdout]       |
[INFO] [stdout] 61323 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:67571:5
[INFO] [stdout]       |
[INFO] [stdout] 67571 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:72696:5
[INFO] [stdout]       |
[INFO] [stdout] 72696 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:78583:5
[INFO] [stdout]       |
[INFO] [stdout] 78583 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:84487:5
[INFO] [stdout]       |
[INFO] [stdout] 84487 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:90292:5
[INFO] [stdout]       |
[INFO] [stdout] 90292 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate core;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | unused,
[INFO] [stdout]    | ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_extern_crates)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     extern crate core;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:5857:5
[INFO] [stdout]      |
[INFO] [stdout] 5857 |     extern crate core;
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:11660:5
[INFO] [stdout]       |
[INFO] [stdout] 11660 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:16907:5
[INFO] [stdout]       |
[INFO] [stdout] 16907 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:22710:5
[INFO] [stdout]       |
[INFO] [stdout] 22710 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:28513:5
[INFO] [stdout]       |
[INFO] [stdout] 28513 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:34852:5
[INFO] [stdout]       |
[INFO] [stdout] 34852 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:39990:5
[INFO] [stdout]       |
[INFO] [stdout] 39990 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:45164:5
[INFO] [stdout]       |
[INFO] [stdout] 45164 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:51073:5
[INFO] [stdout]       |
[INFO] [stdout] 51073 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:56198:5
[INFO] [stdout]       |
[INFO] [stdout] 56198 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:61323:5
[INFO] [stdout]       |
[INFO] [stdout] 61323 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:67571:5
[INFO] [stdout]       |
[INFO] [stdout] 67571 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:72696:5
[INFO] [stdout]       |
[INFO] [stdout] 72696 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:78583:5
[INFO] [stdout]       |
[INFO] [stdout] 78583 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:84487:5
[INFO] [stdout]       |
[INFO] [stdout] 84487 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:573:5
[INFO] [stdout]     |
[INFO] [stdout] 573 |     id: Identifier,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:42:1
[INFO] [stdout]     |
[INFO] [stdout] 42  | unused,
[INFO] [stdout]     | ^^^^^^
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/jodin-rs-781de997c1111adf/out/parsing/jodin_grammar.rs:90292:5
[INFO] [stdout]       |
[INFO] [stdout] 90292 |     extern crate core;
[INFO] [stdout]       |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:574:5
[INFO] [stdout]     |
[INFO] [stdout] 574 |     children: Vec<NodeInfo>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `relevant`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:575:5
[INFO] [stdout]     |
[INFO] [stdout] 575 |     relevant: Vec<(Identifier, Option<Identifier>)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_namespace`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 576 |     is_namespace: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `types`
[INFO] [stdout]   --> src/core/types/type_environment.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     types: HashMap<Identifier, JodinType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DependencyTool`
[INFO] [stdout]  --> src/passes/analysis/dependency_tool.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DependencyTool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `major_namespace`
[INFO] [stdout]   --> src/passes/analysis/dependency_tool.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn major_namespace(&self) -> Identifier {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id_within_major_namespace`
[INFO] [stdout]   --> src/passes/analysis/dependency_tool.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn id_within_major_namespace(&self, _id: &Identifier) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_first_tag`
[INFO] [stdout]    --> src/passes/analysis/identity_resolution_tool.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn find_first_tag<T: 'static + Tag>(node: &JodinNode) -> Option<&T> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TypeResolutionTool`
[INFO] [stdout]  --> src/passes/analysis/type_resolution_tool.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TypeResolutionTool;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]   --> src/passes/frontend.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     settings: &'a CompilationSettings,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ast/jodin_node.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         node.add_tag(DummyTag);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:42:1
[INFO] [stdout]     |
[INFO] [stdout] 42  | unused,
[INFO] [stdout]     | ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ast/jodin_node.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         node.add_tag(BlockIdentifierTag::new(5));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ast/jodin_node.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |         node.add_tag(DummyTag);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/core/identifier_resolution.rs:788:9
[INFO] [stdout]     |
[INFO] [stdout] 788 |         register.insert_with_identifier(3, Identifier::from("best value"));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:573:5
[INFO] [stdout]     |
[INFO] [stdout] 573 |     id: Identifier,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:42:1
[INFO] [stdout]     |
[INFO] [stdout] 42  | unused,
[INFO] [stdout]     | ^^^^^^
[INFO] [stdout]     = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:574:5
[INFO] [stdout]     |
[INFO] [stdout] 574 |     children: Vec<NodeInfo>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `relevant`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:575:5
[INFO] [stdout]     |
[INFO] [stdout] 575 |     relevant: Vec<(Identifier, Option<Identifier>)>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_namespace`
[INFO] [stdout]    --> src/core/identifier_resolution.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 576 |     is_namespace: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `types`
[INFO] [stdout]   --> src/core/types/type_environment.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     types: HashMap<Identifier, JodinType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DependencyTool`
[INFO] [stdout]  --> src/passes/analysis/dependency_tool.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct DependencyTool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `major_namespace`
[INFO] [stdout]   --> src/passes/analysis/dependency_tool.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn major_namespace(&self) -> Identifier {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id_within_major_namespace`
[INFO] [stdout]   --> src/passes/analysis/dependency_tool.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn id_within_major_namespace(&self, _id: &Identifier) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_first_tag`
[INFO] [stdout]    --> src/passes/analysis/identity_resolution_tool.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn find_first_tag<T: 'static + Tag>(node: &JodinNode) -> Option<&T> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TypeResolutionTool`
[INFO] [stdout]  --> src/passes/analysis/type_resolution_tool.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct TypeResolutionTool;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `settings`
[INFO] [stdout]   --> src/passes/frontend.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     settings: &'a CompilationSettings,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 20s
[INFO] running `Command { std: "docker" "inspect" "1c5562af8b0f55a6914c79813992694052d6f6661fb1b6c685f0202e5aafe25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c5562af8b0f55a6914c79813992694052d6f6661fb1b6c685f0202e5aafe25f", kill_on_drop: false }`
[INFO] [stdout] 1c5562af8b0f55a6914c79813992694052d6f6661fb1b6c685f0202e5aafe25f