[INFO] cloning repository https://github.com/milkyapps/llvmgr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/milkyapps/llvmgr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilkyapps%2Fllvmgr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilkyapps%2Fllvmgr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19fbc16da176f2d02e0e0695d3420a8e9bd1885c
[INFO] checking milkyapps/llvmgr against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilkyapps%2Fllvmgr" "/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/milkyapps/llvmgr 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/milkyapps/llvmgr
[INFO] finished tweaking git repo https://github.com/milkyapps/llvmgr
[INFO] tweaked toml for git repo https://github.com/milkyapps/llvmgr written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/milkyapps/llvmgr 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[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] 540d1fc7dea0f076daeaccb6d1bf435d1dca8a73d5991ab04efafb91a687054d
[INFO] running `Command { std: "docker" "start" "-a" "540d1fc7dea0f076daeaccb6d1bf435d1dca8a73d5991ab04efafb91a687054d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "540d1fc7dea0f076daeaccb6d1bf435d1dca8a73d5991ab04efafb91a687054d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "540d1fc7dea0f076daeaccb6d1bf435d1dca8a73d5991ab04efafb91a687054d", kill_on_drop: false }`
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[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] 56fdd7cdc76e1233ce3e98f61f41b2621abd609ff120a120dca77828a374887f
[INFO] running `Command { std: "docker" "start" "-a" "56fdd7cdc76e1233ce3e98f61f41b2621abd609ff120a120dca77828a374887f", kill_on_drop: false }`
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[INFO] [stdout] warning: variant `ContentLength` is never constructed
[INFO] [stdout]   --> src/commands/mod.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub(crate) enum DownloadError {
[INFO] [stdout]    |                 ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 72 |     ContentLength(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DownloadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InstallError` is never used
[INFO] [stdout]  --> src/commands/install.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) enum InstallError {}
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ContentLength` is never constructed
[INFO] [stdout]   --> src/commands/mod.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub(crate) enum DownloadError {
[INFO] [stdout]    |                 ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 72 |     ContentLength(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DownloadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InstallError` is never used
[INFO] [stdout]  --> src/commands/install.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) enum InstallError {}
[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 24.40s
[INFO] running `Command { std: "docker" "inspect" "56fdd7cdc76e1233ce3e98f61f41b2621abd609ff120a120dca77828a374887f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56fdd7cdc76e1233ce3e98f61f41b2621abd609ff120a120dca77828a374887f", kill_on_drop: false }`
[INFO] [stdout] 56fdd7cdc76e1233ce3e98f61f41b2621abd609ff120a120dca77828a374887f