[INFO] cloning repository https://github.com/logan-gatlin/halcyon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/logan-gatlin/halcyon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flogan-gatlin%2Fhalcyon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flogan-gatlin%2Fhalcyon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8eed444b983bb959ae49ff777ed0adb9cbd1568e
[INFO] checking logan-gatlin/halcyon against try#54cf65b8d066c082e536455049b95943cf30378f for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flogan-gatlin%2Fhalcyon" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/logan-gatlin/halcyon
[INFO] finished tweaking git repo https://github.com/logan-gatlin/halcyon
[INFO] tweaked toml for git repo https://github.com/logan-gatlin/halcyon written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/logan-gatlin/halcyon on toolchain 54cf65b8d066c082e536455049b95943cf30378f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/logan-gatlin/halcyon 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" "+54cf65b8d066c082e536455049b95943cf30378f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1494ac2dbb6da3a61a6823d96a4433bdd7db39591768619b125aeb9752c8abb7
[INFO] running `Command { std: "docker" "start" "-a" "1494ac2dbb6da3a61a6823d96a4433bdd7db39591768619b125aeb9752c8abb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1494ac2dbb6da3a61a6823d96a4433bdd7db39591768619b125aeb9752c8abb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1494ac2dbb6da3a61a6823d96a4433bdd7db39591768619b125aeb9752c8abb7", kill_on_drop: false }`
[INFO] [stdout] 1494ac2dbb6da3a61a6823d96a4433bdd7db39591768619b125aeb9752c8abb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac056ca99720b2c3063be84cfd3974c7d83a44ef2ac3d0ea0290b1ad05b317d2
[INFO] running `Command { std: "docker" "start" "-a" "ac056ca99720b2c3063be84cfd3974c7d83a44ef2ac3d0ea0290b1ad05b317d2", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `names1`
[INFO] [stdout]    --> src/semantic/constraint.rs:108:40
[INFO] [stdout]     |
[INFO] [stdout] 108 |                         variant_names: names1,
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_names1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `names2`
[INFO] [stdout]    --> src/semantic/constraint.rs:113:40
[INFO] [stdout]     |
[INFO] [stdout] 113 |                         variant_names: names2,
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_names2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cranelift-native v0.121.2
[INFO] [stderr]     Checking cranelift-frontend v0.121.2
[INFO] [stderr]     Checking wasmtime-cranelift v34.0.2
[INFO] [stdout] warning: unused variable: `names1`
[INFO] [stdout]    --> src/semantic/constraint.rs:108:40
[INFO] [stdout]     |
[INFO] [stdout] 108 |                         variant_names: names1,
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_names1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `names2`
[INFO] [stdout]    --> src/semantic/constraint.rs:113:40
[INFO] [stdout]     |
[INFO] [stdout] 113 |                         variant_names: names2,
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_names2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 28s
[INFO] running `Command { std: "docker" "inspect" "ac056ca99720b2c3063be84cfd3974c7d83a44ef2ac3d0ea0290b1ad05b317d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac056ca99720b2c3063be84cfd3974c7d83a44ef2ac3d0ea0290b1ad05b317d2", kill_on_drop: false }`
[INFO] [stdout] ac056ca99720b2c3063be84cfd3974c7d83a44ef2ac3d0ea0290b1ad05b317d2
