[INFO] cloning repository https://github.com/karljohannisson/rustgrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karljohannisson/rustgrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarljohannisson%2Frustgrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarljohannisson%2Frustgrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84ce756eb19ade5cfe05886e8e6bc94f06492865
[INFO] testing karljohannisson/rustgrad against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarljohannisson%2Frustgrad" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/karljohannisson/rustgrad
[INFO] finished tweaking git repo https://github.com/karljohannisson/rustgrad
[INFO] tweaked toml for git repo https://github.com/karljohannisson/rustgrad written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/karljohannisson/rustgrad on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/karljohannisson/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" "+1.100.0-beta.1" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing karljohannisson/rustgrad against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarljohannisson%2Frustgrad" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/karljohannisson/rustgrad
[INFO] finished tweaking git repo https://github.com/karljohannisson/rustgrad
[INFO] tweaked toml for git repo https://github.com/karljohannisson/rustgrad written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/karljohannisson/rustgrad on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/karljohannisson/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" "+1.100.0-beta.1" "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-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb
[INFO] running `Command { std: "docker" "start" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling rustgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `grad`, `child_a`, `child_b`, and `op` are never read
[INFO] [stdout]  --> src/value.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Value {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 5 |     data: f64,
[INFO] [stdout] 6 |     grad: f64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     child_a: Option<Box<Value>>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 8 |     child_b: Option<Box<Value>>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 9 |     op: String,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tanh` is never used
[INFO] [stdout]   --> src/value.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn tanh(self) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `grad` is never read
[INFO] [stdout]  --> src/value.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Value {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     data: f64,
[INFO] [stdout] 6 |     grad: f64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: field `grad` is never read
[INFO] [stderr]  --> src/value.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Value {
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] 5 |     data: f64,
[INFO] [stderr] 6 |     grad: f64,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustgrad` (bin "rustgrad" test) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/build/rustgrad/885b5aa718df97a4/out/rustgrad-885b5aa718df97a4)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test value::tests::test_add_op ... ok
[INFO] [stdout] test value::tests::test_mul_op ... ok
[INFO] [stdout] test value::tests::test_add ... ok
[INFO] [stdout] test value::tests::test_tanh ... ok
[INFO] [stdout] test value::tests::test_children ... ok
[INFO] [stdout] test value::tests::test_mul ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb", kill_on_drop: false }`
[INFO] [stdout] 923e6ad0ca4bcdef11218efbc6242985ce2db8352c1a2386be8c8cdd782f35fb
