[INFO] cloning repository https://github.com/mbazzani/huffman_conjectures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbazzani/huffman_conjectures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbazzani%2Fhuffman_conjectures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbazzani%2Fhuffman_conjectures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d9f85a4c619abf3cdb7b799860d6583f8355c17
[INFO] testing mbazzani/huffman_conjectures against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbazzani%2Fhuffman_conjectures" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/mbazzani/huffman_conjectures
[INFO] finished tweaking git repo https://github.com/mbazzani/huffman_conjectures
[INFO] tweaked toml for git repo https://github.com/mbazzani/huffman_conjectures written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mbazzani/huffman_conjectures on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mbazzani/huffman_conjectures 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing mbazzani/huffman_conjectures against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbazzani%2Fhuffman_conjectures" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/mbazzani/huffman_conjectures
[INFO] finished tweaking git repo https://github.com/mbazzani/huffman_conjectures
[INFO] tweaked toml for git repo https://github.com/mbazzani/huffman_conjectures written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mbazzani/huffman_conjectures on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mbazzani/huffman_conjectures 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sorted-vec v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18af79a6721550005ec1556b4671a866a3b7225912993525b051ef68a15da999
[INFO] running `Command { std: "docker" "start" "-a" "18af79a6721550005ec1556b4671a866a3b7225912993525b051ef68a15da999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18af79a6721550005ec1556b4671a866a3b7225912993525b051ef68a15da999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18af79a6721550005ec1556b4671a866a3b7225912993525b051ef68a15da999", kill_on_drop: false }`
[INFO] [stdout] 18af79a6721550005ec1556b4671a866a3b7225912993525b051ef68a15da999
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5515c2255315d0d6f7a3d72dab8cb5809741641704d5281c34096b6b65229799
[INFO] running `Command { std: "docker" "start" "-a" "5515c2255315d0d6f7a3d72dab8cb5809741641704d5281c34096b6b65229799", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling sorted-vec v0.8.2
[INFO] [stderr]    Compiling xxhash-rust v0.8.6
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling competitive_optimality v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `loses` is never used
[INFO] [stdout]   --> src/code.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub trait CompetitiveOrd {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn loses(&self, other: &Self) -> Option<bool>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `New` is never used
[INFO] [stdout]   --> src/code.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub trait New {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "5515c2255315d0d6f7a3d72dab8cb5809741641704d5281c34096b6b65229799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5515c2255315d0d6f7a3d72dab8cb5809741641704d5281c34096b6b65229799", kill_on_drop: false }`
[INFO] [stdout] 5515c2255315d0d6f7a3d72dab8cb5809741641704d5281c34096b6b65229799
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 331f8fd38f08da7f4b149ad632c574b765fdc4b17c86243a7d3a9ac8bc8ba94c
[INFO] running `Command { std: "docker" "start" "-a" "331f8fd38f08da7f4b149ad632c574b765fdc4b17c86243a7d3a9ac8bc8ba94c", kill_on_drop: false }`
[INFO] [stderr]    Compiling competitive_optimality v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `loses` is never used
[INFO] [stdout]   --> src/code.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub trait CompetitiveOrd {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn loses(&self, other: &Self) -> Option<bool>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "331f8fd38f08da7f4b149ad632c574b765fdc4b17c86243a7d3a9ac8bc8ba94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "331f8fd38f08da7f4b149ad632c574b765fdc4b17c86243a7d3a9ac8bc8ba94c", kill_on_drop: false }`
[INFO] [stdout] 331f8fd38f08da7f4b149ad632c574b765fdc4b17c86243a7d3a9ac8bc8ba94c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eeff9d3230188d043d192fbd48337883d5f7560a5cbf241f3ba43601b603bc62
[INFO] running `Command { std: "docker" "start" "-a" "eeff9d3230188d043d192fbd48337883d5f7560a5cbf241f3ba43601b603bc62", kill_on_drop: false }`
[INFO] [stderr] warning: method `loses` is never used
[INFO] [stderr]   --> src/code.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub trait CompetitiveOrd {
[INFO] [stderr]    |           -------------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 35 |     fn loses(&self, other: &Self) -> Option<bool>;
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `competitive_optimality` (bin "competitive_optimality" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/competitive_optimality-10b1eda4b4adf34c)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test code::tests::competitive_ord_test ... ok
[INFO] [stdout] test code::tests::max_depth_test ... ok
[INFO] [stdout] test conjectures::tests::all_possible_reductions_test ... ok
[INFO] [stdout] test code::tests::from_node_test ... ok
[INFO] [stdout] test node::tests::is_probably_competitively_optimal_test ... ok
[INFO] [stdout] test node::tests::is_same_as_test ... ok
[INFO] [stdout] test node::tests::new_huffman_test ... ok
[INFO] [stdout] test source::test::len_test ... ok
[INFO] [stdout] test source::test::new_int_uniform_test ... ok
[INFO] [stdout] test source::test::new_test ... ok
[INFO] [stdout] test source::test::to_leaves_vec_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eeff9d3230188d043d192fbd48337883d5f7560a5cbf241f3ba43601b603bc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeff9d3230188d043d192fbd48337883d5f7560a5cbf241f3ba43601b603bc62", kill_on_drop: false }`
[INFO] [stdout] eeff9d3230188d043d192fbd48337883d5f7560a5cbf241f3ba43601b603bc62