[INFO] cloning repository https://github.com/lordarthas/undergarden
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lordarthas/undergarden" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flordarthas%2Fundergarden", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flordarthas%2Fundergarden'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afb935ee7ad31cd638bebae9593f0c757dca947f
[INFO] checking lordarthas/undergarden against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flordarthas%2Fundergarden" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lordarthas/undergarden 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/lordarthas/undergarden
[INFO] finished tweaking git repo https://github.com/lordarthas/undergarden
[INFO] tweaked toml for git repo https://github.com/lordarthas/undergarden written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lordarthas/undergarden 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b1206130fd925f591f13f219d8c0e4513ac62da21cb7143434150ab94e1994c0
[INFO] running `Command { std: "docker" "start" "-a" "b1206130fd925f591f13f219d8c0e4513ac62da21cb7143434150ab94e1994c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1206130fd925f591f13f219d8c0e4513ac62da21cb7143434150ab94e1994c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1206130fd925f591f13f219d8c0e4513ac62da21cb7143434150ab94e1994c0", kill_on_drop: false }`
[INFO] [stdout] b1206130fd925f591f13f219d8c0e4513ac62da21cb7143434150ab94e1994c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e2ae02c7b23a5d31fcc708ec2ef3108b598adc5d38b2b72d3f26cba21cd472f7
[INFO] running `Command { std: "docker" "start" "-a" "e2ae02c7b23a5d31fcc708ec2ef3108b598adc5d38b2b72d3f26cba21cd472f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking undergarden v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `get_tag` and `get_name` are never used
[INFO] [stdout]   --> src/unend/interagibles.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait Interagible {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 49 |     fn get_tag(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 50 |     fn get_name(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_tag` is never used
[INFO] [stdout]   --> src/unend/visitables.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Visitable {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 36 |     fn get_tag(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_tag` and `get_name` are never used
[INFO] [stdout]   --> src/unend/interagibles.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait Interagible {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 49 |     fn get_tag(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 50 |     fn get_name(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_tag` is never used
[INFO] [stdout]   --> src/unend/visitables.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Visitable {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 36 |     fn get_tag(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "e2ae02c7b23a5d31fcc708ec2ef3108b598adc5d38b2b72d3f26cba21cd472f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ae02c7b23a5d31fcc708ec2ef3108b598adc5d38b2b72d3f26cba21cd472f7", kill_on_drop: false }`
[INFO] [stdout] e2ae02c7b23a5d31fcc708ec2ef3108b598adc5d38b2b72d3f26cba21cd472f7