[INFO] cloning repository https://github.com/kevdarby/quantum_simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevdarby/quantum_simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevdarby%2Fquantum_simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevdarby%2Fquantum_simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b1d89e6e08959da0b0c9ca46a006ac1470f4c24
[INFO] checking kevdarby/quantum_simulator against try#29194e8f603400afdb2f86c9418e9fccb1628ea0 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevdarby%2Fquantum_simulator" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kevdarby/quantum_simulator
[INFO] finished tweaking git repo https://github.com/kevdarby/quantum_simulator
[INFO] tweaked toml for git repo https://github.com/kevdarby/quantum_simulator written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kevdarby/quantum_simulator on toolchain 29194e8f603400afdb2f86c9418e9fccb1628ea0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kevdarby/quantum_simulator 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" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "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] checking kevdarby/quantum_simulator against try#29194e8f603400afdb2f86c9418e9fccb1628ea0 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevdarby%2Fquantum_simulator" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kevdarby/quantum_simulator
[INFO] finished tweaking git repo https://github.com/kevdarby/quantum_simulator
[INFO] tweaked toml for git repo https://github.com/kevdarby/quantum_simulator written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kevdarby/quantum_simulator on toolchain 29194e8f603400afdb2f86c9418e9fccb1628ea0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kevdarby/quantum_simulator 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" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2846bb5f55278d49a52460a0ce5deb76e9776b6fdbb44ff47e8fb98dd22da817
[INFO] running `Command { std: "docker" "start" "-a" "2846bb5f55278d49a52460a0ce5deb76e9776b6fdbb44ff47e8fb98dd22da817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2846bb5f55278d49a52460a0ce5deb76e9776b6fdbb44ff47e8fb98dd22da817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2846bb5f55278d49a52460a0ce5deb76e9776b6fdbb44ff47e8fb98dd22da817", kill_on_drop: false }`
[INFO] [stdout] 2846bb5f55278d49a52460a0ce5deb76e9776b6fdbb44ff47e8fb98dd22da817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1dd7fd744f94a5e0f3eb25aeffd7bcfd2e765c48f010751696fb4f2f6ccc43d
[INFO] running `Command { std: "docker" "start" "-a" "e1dd7fd744f94a5e0f3eb25aeffd7bcfd2e765c48f010751696fb4f2f6ccc43d", kill_on_drop: false }`
[INFO] [stderr]     Checking quantum_simulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `h` is never used
[INFO] [stdout]   --> src/quantum_simulator/gates.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn h(psi: QuantumStateVector) -> QuantumStateVector {
[INFO] [stdout]    |        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tensor_product` is never used
[INFO] [stdout]  --> src/matrix/matrix_operations.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn tensor_product(m1: Matrix, m2: Matrix) -> Matrix {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `psi` is never read
[INFO] [stdout]    --> src/quantum_simulator/gates.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         psi = h(psi);
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e1dd7fd744f94a5e0f3eb25aeffd7bcfd2e765c48f010751696fb4f2f6ccc43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1dd7fd744f94a5e0f3eb25aeffd7bcfd2e765c48f010751696fb4f2f6ccc43d", kill_on_drop: false }`
[INFO] [stdout] e1dd7fd744f94a5e0f3eb25aeffd7bcfd2e765c48f010751696fb4f2f6ccc43d