[INFO] cloning repository https://github.com/busserull/counterbore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/busserull/counterbore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusserull%2Fcounterbore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusserull%2Fcounterbore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 905c29f9ef25efa790eedab8beb3b0844de55359
[INFO] building busserull/counterbore against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbusserull%2Fcounterbore" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/busserull/counterbore on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/busserull/counterbore
[INFO] finished tweaking git repo https://github.com/busserull/counterbore
[INFO] tweaked toml for git repo https://github.com/busserull/counterbore written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/busserull/counterbore 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 055d32236b0ffdf39b247c01cfefbca45ecf57ca23924513ed67e2c4b565783b
[INFO] running `Command { std: "docker" "start" "-a" "055d32236b0ffdf39b247c01cfefbca45ecf57ca23924513ed67e2c4b565783b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "055d32236b0ffdf39b247c01cfefbca45ecf57ca23924513ed67e2c4b565783b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055d32236b0ffdf39b247c01cfefbca45ecf57ca23924513ed67e2c4b565783b", kill_on_drop: false }`
[INFO] [stdout] 055d32236b0ffdf39b247c01cfefbca45ecf57ca23924513ed67e2c4b565783b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0c913f59b6b2e715910b0e6e6b5b97d7fae0e167873e037acf577db7a4395e1
[INFO] running `Command { std: "docker" "start" "-a" "d0c913f59b6b2e715910b0e6e6b5b97d7fae0e167873e037acf577db7a4395e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling counterbore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `start` is never read
[INFO] [stdout]  --> src/cbor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Cbor<'a> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cbor` 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 0.40s
[INFO] running `Command { std: "docker" "inspect" "d0c913f59b6b2e715910b0e6e6b5b97d7fae0e167873e037acf577db7a4395e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c913f59b6b2e715910b0e6e6b5b97d7fae0e167873e037acf577db7a4395e1", kill_on_drop: false }`
[INFO] [stdout] d0c913f59b6b2e715910b0e6e6b5b97d7fae0e167873e037acf577db7a4395e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da6d861c4189706931ad16e294c2ef4cae7db423d842aeb75504d5c94bd1a212
[INFO] running `Command { std: "docker" "start" "-a" "da6d861c4189706931ad16e294c2ef4cae7db423d842aeb75504d5c94bd1a212", kill_on_drop: false }`
[INFO] [stderr]    Compiling counterbore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `start` is never read
[INFO] [stdout]  --> src/cbor.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Cbor<'a> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cbor` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "da6d861c4189706931ad16e294c2ef4cae7db423d842aeb75504d5c94bd1a212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6d861c4189706931ad16e294c2ef4cae7db423d842aeb75504d5c94bd1a212", kill_on_drop: false }`
[INFO] [stdout] da6d861c4189706931ad16e294c2ef4cae7db423d842aeb75504d5c94bd1a212