[INFO] cloning repository https://github.com/GeauxEric/minigrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GeauxEric/minigrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeauxEric%2Fminigrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeauxEric%2Fminigrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3f0db96177eef5444f617ed344a11272ea4f61e
[INFO] testing GeauxEric/minigrad against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeauxEric%2Fminigrad" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GeauxEric/minigrad
[INFO] finished tweaking git repo https://github.com/GeauxEric/minigrad
[INFO] tweaked toml for git repo https://github.com/GeauxEric/minigrad written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GeauxEric/minigrad on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GeauxEric/minigrad 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.51
[INFO] [stderr]   Downloaded into-attr-derive v0.2.1
[INFO] [stderr]   Downloaded pest_meta v2.7.5
[INFO] [stderr]   Downloaded pest_derive v2.7.5
[INFO] [stderr]   Downloaded dot-generator v0.2.0
[INFO] [stderr]   Downloaded into-attr v0.1.1
[INFO] [stderr]   Downloaded thiserror v1.0.51
[INFO] [stderr]   Downloaded pest_generator v2.7.5
[INFO] [stderr]   Downloaded pest v2.7.5
[INFO] [stderr]   Downloaded dot-structures v0.1.1
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] [stderr]   Downloaded graphviz-rust v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b194a3bf573f474e230ed16d39f3fc164d0405d3518fea53dcfb3ccb016d69
[INFO] running `Command { std: "docker" "start" "-a" "a4b194a3bf573f474e230ed16d39f3fc164d0405d3518fea53dcfb3ccb016d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b194a3bf573f474e230ed16d39f3fc164d0405d3518fea53dcfb3ccb016d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b194a3bf573f474e230ed16d39f3fc164d0405d3518fea53dcfb3ccb016d69", kill_on_drop: false }`
[INFO] [stdout] a4b194a3bf573f474e230ed16d39f3fc164d0405d3518fea53dcfb3ccb016d69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4b3490f45eb5d627a052d4a4b699f3f3e478963b2a97a9144780a5d0569d487
[INFO] running `Command { std: "docker" "start" "-a" "f4b3490f45eb5d627a052d4a4b699f3f3e478963b2a97a9144780a5d0569d487", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrograd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `DType` is never used
[INFO] [stdout]  --> src/lib.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum DType {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/lib.rs:56:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Value` is never constructed
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Value {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_leaf`, and `set_label` are never used
[INFO] [stdout]    --> src/lib.rs:96:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl Value {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  96 |     pub fn new(data: impl Into<DType>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn is_leaf(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn set_label(&mut self, label: impl Into<String>) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "f4b3490f45eb5d627a052d4a4b699f3f3e478963b2a97a9144780a5d0569d487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b3490f45eb5d627a052d4a4b699f3f3e478963b2a97a9144780a5d0569d487", kill_on_drop: false }`
[INFO] [stdout] f4b3490f45eb5d627a052d4a4b699f3f3e478963b2a97a9144780a5d0569d487
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f49c13e6f29af3c09cff0041e92f8844b70970303079b9538492672f61fc042
[INFO] running `Command { std: "docker" "start" "-a" "4f49c13e6f29af3c09cff0041e92f8844b70970303079b9538492672f61fc042", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling dot-structures v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling dot-generator v0.2.0
[INFO] [stderr]    Compiling into-attr v0.1.1
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stdout] warning: enum `DType` is never used
[INFO] [stdout]  --> src/lib.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum DType {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/lib.rs:56:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Value` is never constructed
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct Value {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_leaf`, and `set_label` are never used
[INFO] [stdout]    --> src/lib.rs:96:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl Value {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  96 |     pub fn new(data: impl Into<DType>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn is_leaf(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn set_label(&mut self, label: impl Into<String>) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tempfile v3.8.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling into-attr-derive v0.2.1
[INFO] [stderr]    Compiling pest v2.7.5
[INFO] [stderr]    Compiling pest_meta v2.7.5
[INFO] [stderr]    Compiling pest_generator v2.7.5
[INFO] [stderr]    Compiling pest_derive v2.7.5
[INFO] [stderr]    Compiling graphviz-rust v0.7.0
[INFO] [stderr]    Compiling micrograd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `graph_svg`
[INFO] [stdout]    --> src/lib.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let graph_svg = exec(
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graph_svg`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 23.01s
[INFO] running `Command { std: "docker" "inspect" "4f49c13e6f29af3c09cff0041e92f8844b70970303079b9538492672f61fc042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f49c13e6f29af3c09cff0041e92f8844b70970303079b9538492672f61fc042", kill_on_drop: false }`
[INFO] [stdout] 4f49c13e6f29af3c09cff0041e92f8844b70970303079b9538492672f61fc042
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf0f15d5c4f62047db0fb1ad7f2b60b75d80667aaf26f7a7cd37440b0b186a57
[INFO] running `Command { std: "docker" "start" "-a" "cf0f15d5c4f62047db0fb1ad7f2b60b75d80667aaf26f7a7cd37440b0b186a57", kill_on_drop: false }`
[INFO] [stderr] warning: enum `DType` is never used
[INFO] [stderr]  --> src/lib.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum DType {
[INFO] [stderr]   |      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Op` is never used
[INFO] [stderr]   --> src/lib.rs:56:6
[INFO] [stderr]    |
[INFO] [stderr] 56 | enum Op {
[INFO] [stderr]    |      ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Value` is never constructed
[INFO] [stderr]   --> src/lib.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | struct Value {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `is_leaf`, and `set_label` are never used
[INFO] [stderr]    --> src/lib.rs:96:12
[INFO] [stderr]     |
[INFO] [stderr]  95 | impl Value {
[INFO] [stderr]     | ---------- associated items in this implementation
[INFO] [stderr]  96 |     pub fn new(data: impl Into<DType>) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 105 |     pub fn is_leaf(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     pub fn set_label(&mut self, label: impl Into<String>) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `micrograd` (lib) generated 4 warnings
[INFO] [stderr] warning: unused variable: `graph_svg`
[INFO] [stderr]    --> src/lib.rs:187:13
[INFO] [stderr]     |
[INFO] [stderr] 187 |         let graph_svg = exec(
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graph_svg`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `micrograd` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/micrograd-5714d7b03c9af577)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_works stdout ----
[INFO] [stdout] Value { data: U8(1), label: "v1", op: NoOp, prev: [] } Value { data: F32(1.0), label: "v2", op: NoOp, prev: [] }
[INFO] [stdout] Value { data: F32(2.0), label: "v3", op: Plus, prev: [Value { data: U8(1), label: "v1", op: NoOp, prev: [] }, Value { data: F32(1.0), label: "v2", op: NoOp, prev: [] }] }
[INFO] [stdout] Value { data: F32(6.0), label: "v5", op: Mul, prev: [Value { data: U8(3), label: "v4", op: NoOp, prev: [] }, Value { data: F32(2.0), label: "v3", op: Plus, prev: [Value { data: U8(1), label: "v1", op: NoOp, prev: [] }, Value { data: F32(1.0), label: "v2", op: NoOp, prev: [] }] }] }
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::it_works' panicked at src/lib.rs:192:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: "Error: Could not open \"./1.svg\" for writing : Read-only file system\n" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6420dd95b9a2 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6420dd95b9a2 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6420dd95b9a2 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6420dd95b9a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6420dd9825f3 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6420dd9825f3 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x6420dd9586d3 - std::io::default_write_fmt::h7b8824096454f323
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6420dd9586d3 - std::io::Write::write_fmt::h4e71294925c334d0
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6420dd95b7f2 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6420dd95cfc9 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x6420dd95cdfe - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x6420dd9090b4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x6420dd9090b4 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6420dd95d99e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x6420dd95d99e - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x6420dd95d76a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x6420dd95be99 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6420dd95d3fd - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x6420dd980600 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x6420dd980a36 - core::result::unwrap_failed::h95bc3f5a607b2c95
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1765:5
[INFO] [stdout]   20:     0x6420dd8cf980 - core::result::Result<T,E>::unwrap::h75437adb8f056238
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x6420dd8cf980 - micrograd::tests::it_works::h4d37522a273f9e5f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:192:10
[INFO] [stdout]   22:     0x6420dd8cf0a7 - micrograd::tests::it_works::{{closure}}::ha8e826226b1ecf23
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:170:18
[INFO] [stdout]   23:     0x6420dd8caf66 - core::ops::function::FnOnce::call_once::h6fa53526e892055c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x6420dd90e91b - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x6420dd90e91b - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x6420dd90da55 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x6420dd90da55 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x6420dd90da55 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x6420dd90da55 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x6420dd90da55 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6420dd90da55 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x6420dd90da55 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x6420dd8d1654 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x6420dd8d1654 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6420dd8d502a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x6420dd8d502a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x6420dd8d502a - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x6420dd8d502a - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x6420dd8d502a - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6420dd8d502a - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x6420dd8d502a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x6420dd96091f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x6420dd96091f - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   44:     0x7fc1490e6aa4 - <unknown>
[INFO] [stdout]   45:     0x7fc149173a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::it_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "cf0f15d5c4f62047db0fb1ad7f2b60b75d80667aaf26f7a7cd37440b0b186a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0f15d5c4f62047db0fb1ad7f2b60b75d80667aaf26f7a7cd37440b0b186a57", kill_on_drop: false }`
[INFO] [stdout] cf0f15d5c4f62047db0fb1ad7f2b60b75d80667aaf26f7a7cd37440b0b186a57
