[INFO] cloning repository https://github.com/Dmarcano/autograd_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dmarcano/autograd_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDmarcano%2Fautograd_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDmarcano%2Fautograd_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f42cd827e6cef2806bdf26f9bbccb204deb3795
[INFO] checking Dmarcano/autograd_rs against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDmarcano%2Fautograd_rs" "/workspace/builds/worker-119/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-119/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dmarcano/autograd_rs on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dmarcano/autograd_rs
[INFO] finished tweaking git repo https://github.com/Dmarcano/autograd_rs
[INFO] tweaked toml for git repo https://github.com/Dmarcano/autograd_rs written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] crate git repo https://github.com/Dmarcano/autograd_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e93d28ed91a0c00c12436de7330863309d45fe8b0694ca38e9a06a9d617e91e
[INFO] running `Command { std: "docker" "start" "-a" "5e93d28ed91a0c00c12436de7330863309d45fe8b0694ca38e9a06a9d617e91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e93d28ed91a0c00c12436de7330863309d45fe8b0694ca38e9a06a9d617e91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e93d28ed91a0c00c12436de7330863309d45fe8b0694ca38e9a06a9d617e91e", kill_on_drop: false }`
[INFO] [stdout] 5e93d28ed91a0c00c12436de7330863309d45fe8b0694ca38e9a06a9d617e91e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd13378993a0782bdc3e659cbeb5d0e8a4c1958ce2a9a1605360c1dfce63da47
[INFO] running `Command { std: "docker" "start" "-a" "fd13378993a0782bdc3e659cbeb5d0e8a4c1958ce2a9a1605360c1dfce63da47", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking auto_ops v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking autograd_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `projectile_range`
[INFO] [stdout]  --> examples/forward_ad_projectile_motion.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn projectile_range(u : f32, theta: ForwardTensor) -> ForwardTensor { 
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `projectile_max_height`
[INFO] [stdout]   --> examples/forward_ad_projectile_motion.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn projectile_max_height(u : f32, theta : ForwardTensor) -> ForwardTensor { 
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `maximize_height`
[INFO] [stdout]   --> examples/forward_ad_projectile_motion.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn maximize_height(initial_theta : f32) -> f32{ 
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `maximize_range`
[INFO] [stdout]   --> examples/forward_ad_projectile_motion.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn maximize_range() { 
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.29s
[INFO] running `Command { std: "docker" "inspect" "fd13378993a0782bdc3e659cbeb5d0e8a4c1958ce2a9a1605360c1dfce63da47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd13378993a0782bdc3e659cbeb5d0e8a4c1958ce2a9a1605360c1dfce63da47", kill_on_drop: false }`
[INFO] [stdout] fd13378993a0782bdc3e659cbeb5d0e8a4c1958ce2a9a1605360c1dfce63da47