[INFO] cloning repository https://github.com/Quinny/rustgrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Quinny/rustgrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuinny%2Frustgrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuinny%2Frustgrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb83b2780cca7d776f323433966808199d3fd7e6
[INFO] building Quinny/rustgrad 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%2FQuinny%2Frustgrad" "/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/Quinny/rustgrad 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/Quinny/rustgrad
[INFO] finished tweaking git repo https://github.com/Quinny/rustgrad
[INFO] tweaked toml for git repo https://github.com/Quinny/rustgrad written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Quinny/rustgrad 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-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] 8d6e427b2fae2e9f90e8ab2d49c3736c4a19dad41238b05f031c8a4e9f20cc89
[INFO] running `Command { std: "docker" "start" "-a" "8d6e427b2fae2e9f90e8ab2d49c3736c4a19dad41238b05f031c8a4e9f20cc89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d6e427b2fae2e9f90e8ab2d49c3736c4a19dad41238b05f031c8a4e9f20cc89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d6e427b2fae2e9f90e8ab2d49c3736c4a19dad41238b05f031c8a4e9f20cc89", kill_on_drop: false }`
[INFO] [stdout] 8d6e427b2fae2e9f90e8ab2d49c3736c4a19dad41238b05f031c8a4e9f20cc89
[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] 924e6ffce8c5066046d6a4a78c0fe052727ca32909363e303f7fa1266d36f047
[INFO] running `Command { std: "docker" "start" "-a" "924e6ffce8c5066046d6a4a78c0fe052727ca32909363e303f7fa1266d36f047", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rustgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `relu` and `dump` are never used
[INFO] [stdout]    --> src/value.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 45  | impl Value {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn relu(&self) -> Value {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn dump(&self) -> () {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Relu` is never constructed
[INFO] [stdout]    --> src/value.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 201 | enum Operation {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 205 |     Relu,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `Command { std: "docker" "inspect" "924e6ffce8c5066046d6a4a78c0fe052727ca32909363e303f7fa1266d36f047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924e6ffce8c5066046d6a4a78c0fe052727ca32909363e303f7fa1266d36f047", kill_on_drop: false }`
[INFO] [stdout] 924e6ffce8c5066046d6a4a78c0fe052727ca32909363e303f7fa1266d36f047
[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] 4123336a72d5c01b035dce72df992d5bdae0e5bded04ff75d3d44cf94b66951c
[INFO] running `Command { std: "docker" "start" "-a" "4123336a72d5c01b035dce72df992d5bdae0e5bded04ff75d3d44cf94b66951c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `relu` and `dump` are never used
[INFO] [stdout]    --> src/value.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 45  | impl Value {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn relu(&self) -> Value {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn dump(&self) -> () {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Relu` is never constructed
[INFO] [stdout]    --> src/value.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 201 | enum Operation {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 205 |     Relu,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "4123336a72d5c01b035dce72df992d5bdae0e5bded04ff75d3d44cf94b66951c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4123336a72d5c01b035dce72df992d5bdae0e5bded04ff75d3d44cf94b66951c", kill_on_drop: false }`
[INFO] [stdout] 4123336a72d5c01b035dce72df992d5bdae0e5bded04ff75d3d44cf94b66951c