[INFO] cloning repository https://github.com/eduhenke/ferrugem-lang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eduhenke/ferrugem-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduhenke%2Fferrugem-lang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduhenke%2Fferrugem-lang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6c30c5d6cde16fc1e56e79a7cb468fbc59dc5ba8 [INFO] checking eduhenke/ferrugem-lang against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduhenke%2Fferrugem-lang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/eduhenke/ferrugem-lang on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/eduhenke/ferrugem-lang [INFO] finished tweaking git repo https://github.com/eduhenke/ferrugem-lang [INFO] tweaked toml for git repo https://github.com/eduhenke/ferrugem-lang written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/eduhenke/ferrugem-lang 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lalrpop-util v0.19.6 [INFO] [stderr] Downloaded structopt v0.3.22 [INFO] [stderr] Downloaded lalrpop v0.19.6 [INFO] [stderr] Downloaded beef v0.5.0 [INFO] [stderr] Downloaded logos-derive v0.12.0 [INFO] [stderr] Downloaded logos v0.12.0 [INFO] [stderr] Downloaded structopt-derive v0.4.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 296bb090248c4d949352989d08dc7e50a2166e1c6c82999407f26dd4589bd49d [INFO] running `Command { std: "docker" "start" "-a" "296bb090248c4d949352989d08dc7e50a2166e1c6c82999407f26dd4589bd49d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "296bb090248c4d949352989d08dc7e50a2166e1c6c82999407f26dd4589bd49d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "296bb090248c4d949352989d08dc7e50a2166e1c6c82999407f26dd4589bd49d", kill_on_drop: false }` [INFO] [stdout] 296bb090248c4d949352989d08dc7e50a2166e1c6c82999407f26dd4589bd49d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e5308533df771400ff5e99441bbf0304b54fe7a3c53492e4c05b570218ec2166 [INFO] running `Command { std: "docker" "start" "-a" "e5308533df771400ff5e99441bbf0304b54fe7a3c53492e4c05b570218ec2166", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling siphasher v0.3.5 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling pico-args v0.4.2 [INFO] [stderr] Compiling itertools v0.10.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Compiling beef v0.5.0 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Checking codespan-reporting v0.11.1 [INFO] [stderr] Compiling string_cache v0.8.1 [INFO] [stderr] Checking lalrpop-util v0.19.6 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling term v0.7.0 [INFO] [stderr] Compiling ascii-canvas v3.0.0 [INFO] [stderr] Compiling lalrpop v0.19.6 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling logos-derive v0.12.0 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking logos v0.12.0 [INFO] [stderr] Compiling ferrugem-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/semantic.rs:13:24 [INFO] [stdout] | [INFO] [stdout] 13 | TypesMustBeTheSame(Type<'a>, Type<'a>), [INFO] [stdout] | ------------------ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 13 | TypesMustBeTheSame((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/semantic.rs:13:24 [INFO] [stdout] | [INFO] [stdout] 13 | TypesMustBeTheSame(Type<'a>, Type<'a>), [INFO] [stdout] | ------------------ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 13 | TypesMustBeTheSame((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.40s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.19.6 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5` [INFO] running `Command { std: "docker" "inspect" "e5308533df771400ff5e99441bbf0304b54fe7a3c53492e4c05b570218ec2166", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5308533df771400ff5e99441bbf0304b54fe7a3c53492e4c05b570218ec2166", kill_on_drop: false }` [INFO] [stdout] e5308533df771400ff5e99441bbf0304b54fe7a3c53492e4c05b570218ec2166