[INFO] cloning repository https://github.com/fmonniot/zelkova-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fmonniot/zelkova-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmonniot%2Fzelkova-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmonniot%2Fzelkova-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9eefd468036a78cfb8bd7d1b5d127d87093309ec
[INFO] checking fmonniot/zelkova-lang against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmonniot%2Fzelkova-lang" "/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/fmonniot/zelkova-lang on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fmonniot/zelkova-lang
[INFO] finished tweaking git repo https://github.com/fmonniot/zelkova-lang
[INFO] tweaked toml for git repo https://github.com/fmonniot/zelkova-lang written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/fmonniot/zelkova-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--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-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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b449cd4deb3e7c5f3d5e19e7368ebd785f8b6693c3e8225022308cf74d45ca0
[INFO] running `Command { std: "docker" "start" "-a" "6b449cd4deb3e7c5f3d5e19e7368ebd785f8b6693c3e8225022308cf74d45ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b449cd4deb3e7c5f3d5e19e7368ebd785f8b6693c3e8225022308cf74d45ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b449cd4deb3e7c5f3d5e19e7368ebd785f8b6693c3e8225022308cf74d45ca0", kill_on_drop: false }`
[INFO] [stdout] 6b449cd4deb3e7c5f3d5e19e7368ebd785f8b6693c3e8225022308cf74d45ca0
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38ba67ceb338c7d0d4966642e1a4568927cf89161c655b6e4f3996369f113fa7
[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" "38ba67ceb338c7d0d4966642e1a4568927cf89161c655b6e4f3996369f113fa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling lalrpop-util v0.19.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking unic-ucd-category v0.9.0
[INFO] [stderr]     Checking codespan v0.9.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.19.0
[INFO] [stderr]    Compiling zelkova-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/mod.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn from(err: typer::Error) -> Self {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/mod.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn from(err: exhaustiveness::Error) -> Self {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/compiler/exhaustiveness.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn check(module: &Module) -> Result<(), Error> {
[INFO] [stdout]   |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/compiler/typer/mod.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn type_check(module: &Module) -> Result<(), Error> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/mod.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn from(err: typer::Error) -> Self {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/mod.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn from(err: exhaustiveness::Error) -> Self {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]  --> src/compiler/exhaustiveness.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn check(module: &Module) -> Result<(), Error> {
[INFO] [stdout]   |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/compiler/typer/mod.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn type_check(module: &Module) -> Result<(), Error> {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_type`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn is_type(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_qualified`
[INFO] [stdout]   --> src/compiler/parser/mod.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn is_qualified(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `package`
[INFO] [stdout]   --> src/compiler/mod.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     package: PackageName,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]   --> src/compiler/mod.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     values: HashMap<parser::Name, canonical::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `package`
[INFO] [stdout]   --> src/compiler/mod.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     package: PackageName,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]   --> src/compiler/mod.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     values: HashMap<parser::Name, canonical::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "38ba67ceb338c7d0d4966642e1a4568927cf89161c655b6e4f3996369f113fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ba67ceb338c7d0d4966642e1a4568927cf89161c655b6e4f3996369f113fa7", kill_on_drop: false }`
[INFO] [stdout] 38ba67ceb338c7d0d4966642e1a4568927cf89161c655b6e4f3996369f113fa7