[INFO] cloning repository https://github.com/djmcgill/domingler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djmcgill/domingler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmcgill%2Fdomingler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmcgill%2Fdomingler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7fd9a261dd5764fa34f8e91c87ba93c0a7be982
[INFO] checking djmcgill/domingler against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjmcgill%2Fdomingler" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/djmcgill/domingler
[INFO] finished tweaking git repo https://github.com/djmcgill/domingler
[INFO] tweaked toml for git repo https://github.com/djmcgill/domingler written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/djmcgill/domingler on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/djmcgill/domingler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maplit v1.0.1
[INFO] [stderr]   Downloaded utf8-ranges v1.0.3
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.7
[INFO] [stderr]   Downloaded regex v1.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08923429f5093efcb8ce28c9ebb864e81ae8fa5b45ea46999fe9a85d77344277
[INFO] running `Command { std: "docker" "start" "-a" "08923429f5093efcb8ce28c9ebb864e81ae8fa5b45ea46999fe9a85d77344277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08923429f5093efcb8ce28c9ebb864e81ae8fa5b45ea46999fe9a85d77344277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08923429f5093efcb8ce28c9ebb864e81ae8fa5b45ea46999fe9a85d77344277", kill_on_drop: false }`
[INFO] [stdout] 08923429f5093efcb8ce28c9ebb864e81ae8fa5b45ea46999fe9a85d77344277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dee3754c543a778ccc859f54b7bc99e305467421e5451a1d20c6224e5950cb2
[INFO] running `Command { std: "docker" "start" "-a" "5dee3754c543a778ccc859f54b7bc99e305467421e5451a1d20c6224e5950cb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking domingler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/mapper.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         { btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] };
[INFO] [stdout]    |         ^^                                                                           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 16 -         { btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] };
[INFO] [stdout] 16 +         btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/mapper.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         { btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] };
[INFO] [stdout]    |         ^^                                                                           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 16 -         { btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] };
[INFO] [stdout] 16 +         btreeset![721, 724, 733, 795, 805, 813, 818, 847, 875, 893, 900, 920, 1091] ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mapper.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut enchantments_implicit_definition_count = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `poptype_implicit_definition_count` is assigned to, but never used
[INFO] [stdout]   --> src/mapper.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut poptype_implicit_definition_count = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_poptype_implicit_definition_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enchantments_implicit_definition_count`
[INFO] [stdout]   --> src/mapper.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut enchantments_implicit_definition_count = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enchantments_implicit_definition_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `poptype_implicit_definition_count` is never read
[INFO] [stdout]   --> src/mapper.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         poptype_implicit_definition_count += mod_definition.poptype.implicit_definitions;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:165:25
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     Err(e) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `events` is never read
[INFO] [stdout]   --> src/mod_definition.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct ModDefinition<'a> {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub events: Definition<'a>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mapper.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut enchantments_implicit_definition_count = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `poptype_implicit_definition_count` is assigned to, but never used
[INFO] [stdout]   --> src/mapper.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut poptype_implicit_definition_count = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_poptype_implicit_definition_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enchantments_implicit_definition_count`
[INFO] [stdout]   --> src/mapper.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut enchantments_implicit_definition_count = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enchantments_implicit_definition_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `poptype_implicit_definition_count` is never read
[INFO] [stdout]   --> src/mapper.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         poptype_implicit_definition_count += mod_definition.poptype.implicit_definitions;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/scanner.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn scan_all_mods(mods: &Vec<(String, Vec<String>)>) -> HashMap<String, ModDefinition> {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^                     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn scan_all_mods(mods: &Vec<(String, Vec<String>)>) -> HashMap<String, ModDefinition<'_>> {
[INFO] [stdout]   |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:165:25
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     Err(e) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `events` is never read
[INFO] [stdout]   --> src/mod_definition.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct ModDefinition<'a> {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub events: Definition<'a>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/scanner.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn scan_all_mods(mods: &Vec<(String, Vec<String>)>) -> HashMap<String, ModDefinition> {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^                     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn scan_all_mods(mods: &Vec<(String, Vec<String>)>) -> HashMap<String, ModDefinition<'_>> {
[INFO] [stdout]   |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "5dee3754c543a778ccc859f54b7bc99e305467421e5451a1d20c6224e5950cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dee3754c543a778ccc859f54b7bc99e305467421e5451a1d20c6224e5950cb2", kill_on_drop: false }`
[INFO] [stdout] 5dee3754c543a778ccc859f54b7bc99e305467421e5451a1d20c6224e5950cb2
