[INFO] cloning repository https://github.com/AvidCoder27/unit_conversions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AvidCoder27/unit_conversions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAvidCoder27%2Funit_conversions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAvidCoder27%2Funit_conversions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89aad29b98999fcafbf5d236b5b63bec9e306003
[INFO] building AvidCoder27/unit_conversions 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%2FAvidCoder27%2Funit_conversions" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AvidCoder27/unit_conversions 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/AvidCoder27/unit_conversions
[INFO] finished tweaking git repo https://github.com/AvidCoder27/unit_conversions
[INFO] tweaked toml for git repo https://github.com/AvidCoder27/unit_conversions written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AvidCoder27/unit_conversions 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 24be837a6fe687505556c42eb2e160cebe01405b5fddec13e7226b8869f05212
[INFO] running `Command { std: "docker" "start" "-a" "24be837a6fe687505556c42eb2e160cebe01405b5fddec13e7226b8869f05212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24be837a6fe687505556c42eb2e160cebe01405b5fddec13e7226b8869f05212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24be837a6fe687505556c42eb2e160cebe01405b5fddec13e7226b8869f05212", kill_on_drop: false }`
[INFO] [stdout] 24be837a6fe687505556c42eb2e160cebe01405b5fddec13e7226b8869f05212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b5960f1fe8994d34c8d63a2e01e479b0620b1924ae7334051fa4cdfde8de14c0
[INFO] running `Command { std: "docker" "start" "-a" "b5960f1fe8994d34c8d63a2e01e479b0620b1924ae7334051fa4cdfde8de14c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling fast-float v0.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling unit_conversions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `atomic_number` is never read
[INFO] [stdout]    --> src/structs.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Element {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 148 |     pub symbol: String,
[INFO] [stdout] 149 |     pub atomic_number: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "b5960f1fe8994d34c8d63a2e01e479b0620b1924ae7334051fa4cdfde8de14c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5960f1fe8994d34c8d63a2e01e479b0620b1924ae7334051fa4cdfde8de14c0", kill_on_drop: false }`
[INFO] [stdout] b5960f1fe8994d34c8d63a2e01e479b0620b1924ae7334051fa4cdfde8de14c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 338843f903197b16304329e8528bbdae58696afe0f400a5be9dfbc3e564d2e0d
[INFO] running `Command { std: "docker" "start" "-a" "338843f903197b16304329e8528bbdae58696afe0f400a5be9dfbc3e564d2e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit_conversions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `atomic_number` is never read
[INFO] [stdout]    --> src/structs.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Element {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 148 |     pub symbol: String,
[INFO] [stdout] 149 |     pub atomic_number: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "338843f903197b16304329e8528bbdae58696afe0f400a5be9dfbc3e564d2e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338843f903197b16304329e8528bbdae58696afe0f400a5be9dfbc3e564d2e0d", kill_on_drop: false }`
[INFO] [stdout] 338843f903197b16304329e8528bbdae58696afe0f400a5be9dfbc3e564d2e0d