[INFO] cloning repository https://github.com/letsgetrusty/avoiding_allocations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/letsgetrusty/avoiding_allocations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletsgetrusty%2Favoiding_allocations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletsgetrusty%2Favoiding_allocations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9168077463429a7577abacb1648cb305943e49eb
[INFO] checking letsgetrusty/avoiding_allocations against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fletsgetrusty%2Favoiding_allocations" "/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/letsgetrusty/avoiding_allocations on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/letsgetrusty/avoiding_allocations
[INFO] finished tweaking git repo https://github.com/letsgetrusty/avoiding_allocations
[INFO] tweaked toml for git repo https://github.com/letsgetrusty/avoiding_allocations written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/letsgetrusty/avoiding_allocations 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" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d05df156fd6454d58d4e1d191bc4006ba78e574387d74a32fa03b1a09456faa
[INFO] running `Command { std: "docker" "start" "-a" "8d05df156fd6454d58d4e1d191bc4006ba78e574387d74a32fa03b1a09456faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d05df156fd6454d58d4e1d191bc4006ba78e574387d74a32fa03b1a09456faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d05df156fd6454d58d4e1d191bc4006ba78e574387d74a32fa03b1a09456faa", kill_on_drop: false }`
[INFO] [stdout] 8d05df156fd6454d58d4e1d191bc4006ba78e574387d74a32fa03b1a09456faa
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 707a37374d729727883b009ff8f017c4c50ef5dd05ea005e11b1c8629aa1110e
[INFO] running `Command { std: "docker" "start" "-a" "707a37374d729727883b009ff8f017c4c50ef5dd05ea005e11b1c8629aa1110e", kill_on_drop: false }`
[INFO] [stderr]     Checking avoiding_allocations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Admin { name: String }
[INFO] [stdout]   |     -----   ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` 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: field `name` is never read
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Admin { name: String }
[INFO] [stdout]   |     -----   ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "707a37374d729727883b009ff8f017c4c50ef5dd05ea005e11b1c8629aa1110e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707a37374d729727883b009ff8f017c4c50ef5dd05ea005e11b1c8629aa1110e", kill_on_drop: false }`
[INFO] [stdout] 707a37374d729727883b009ff8f017c4c50ef5dd05ea005e11b1c8629aa1110e