[INFO] cloning repository https://github.com/garebareDA/koto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garebareDA/koto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fkoto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fkoto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 649771e21fbdd7c0c9a6f60a937235d899c452b2
[INFO] building garebareDA/koto against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fkoto" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garebareDA/koto on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/garebareDA/koto
[INFO] finished tweaking git repo https://github.com/garebareDA/koto
[INFO] tweaked toml for git repo https://github.com/garebareDA/koto written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/garebareDA/koto 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d1c76558ea49f40c3f642e0a56a33520fed4f606b26f7b24d132f393cb51a91
[INFO] running `Command { std: "docker" "start" "-a" "1d1c76558ea49f40c3f642e0a56a33520fed4f606b26f7b24d132f393cb51a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d1c76558ea49f40c3f642e0a56a33520fed4f606b26f7b24d132f393cb51a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1c76558ea49f40c3f642e0a56a33520fed4f606b26f7b24d132f393cb51a91", kill_on_drop: false }`
[INFO] [stdout] 1d1c76558ea49f40c3f642e0a56a33520fed4f606b26f7b24d132f393cb51a91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 604fc05c907ec10af72d0a5d6cdbbe159bd19c33ca7f276fdb4cdf6e4f40a23c
[INFO] running `Command { std: "docker" "start" "-a" "604fc05c907ec10af72d0a5d6cdbbe159bd19c33ca7f276fdb4cdf6e4f40a23c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling koto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/function.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 396 |               _param_types => {}
[INFO] [stdout]     |               ------------ matches any value
[INFO] [stdout] 397 |
[INFO] [stdout] 398 |               _ => {
[INFO] [stdout]     |               ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/compiler/function.rs:391:11
[INFO] [stdout]     |
[INFO] [stdout] 391 |       let _param_types = &type_array[i];
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `types` is never read
[INFO] [stdout]    --> src/compiler/function.rs:452:13
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut types:Option<asts::VariableTypes> = None;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `funs`
[INFO] [stdout]   --> src/compiler/arithmetic.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |       asts::Types::Function(funs) => {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_funs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `Command { std: "docker" "inspect" "604fc05c907ec10af72d0a5d6cdbbe159bd19c33ca7f276fdb4cdf6e4f40a23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604fc05c907ec10af72d0a5d6cdbbe159bd19c33ca7f276fdb4cdf6e4f40a23c", kill_on_drop: false }`
[INFO] [stdout] 604fc05c907ec10af72d0a5d6cdbbe159bd19c33ca7f276fdb4cdf6e4f40a23c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3babcadce503f921610f4ba9fb3db27c016f8c4ce771011199970e916decf4bd
[INFO] running `Command { std: "docker" "start" "-a" "3babcadce503f921610f4ba9fb3db27c016f8c4ce771011199970e916decf4bd", kill_on_drop: false }`
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/function.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 396 |               _param_types => {}
[INFO] [stdout]     |               ------------ matches any value
[INFO] [stdout] 397 |
[INFO] [stdout] 398 |               _ => {
[INFO] [stdout]     |               ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/compiler/function.rs:391:11
[INFO] [stdout]     |
[INFO] [stdout] 391 |       let _param_types = &type_array[i];
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `types` is never read
[INFO] [stdout]    --> src/compiler/function.rs:452:13
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut types:Option<asts::VariableTypes> = None;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `funs`
[INFO] [stdout]   --> src/compiler/arithmetic.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |       asts::Types::Function(funs) => {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_funs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling koto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/function.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 396 |               _param_types => {}
[INFO] [stdout]     |               ------------ matches any value
[INFO] [stdout] 397 |
[INFO] [stdout] 398 |               _ => {
[INFO] [stdout]     |               ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/compiler/function.rs:391:11
[INFO] [stdout]     |
[INFO] [stdout] 391 |       let _param_types = &type_array[i];
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `types` is never read
[INFO] [stdout]    --> src/compiler/function.rs:452:13
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let mut types:Option<asts::VariableTypes> = None;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `funs`
[INFO] [stdout]   --> src/compiler/arithmetic.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |       asts::Types::Function(funs) => {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_funs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "3babcadce503f921610f4ba9fb3db27c016f8c4ce771011199970e916decf4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3babcadce503f921610f4ba9fb3db27c016f8c4ce771011199970e916decf4bd", kill_on_drop: false }`
[INFO] [stdout] 3babcadce503f921610f4ba9fb3db27c016f8c4ce771011199970e916decf4bd