[INFO] fetching crate binomial-iter 0.1.0...
[INFO] testing binomial-iter-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate binomial-iter 0.1.0 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate binomial-iter 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binomial-iter 0.1.0
[INFO] finished tweaking crates.io crate binomial-iter 0.1.0
[INFO] tweaked toml for crates.io crate binomial-iter 0.1.0 written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 528fd59fd7dc21a2eb824742c621dd76a467f30a7b2cd3d87fc8fe60af1c5a04
[INFO] running `Command { std: "docker" "start" "-a" "528fd59fd7dc21a2eb824742c621dd76a467f30a7b2cd3d87fc8fe60af1c5a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528fd59fd7dc21a2eb824742c621dd76a467f30a7b2cd3d87fc8fe60af1c5a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528fd59fd7dc21a2eb824742c621dd76a467f30a7b2cd3d87fc8fe60af1c5a04", kill_on_drop: false }`
[INFO] [stdout] 528fd59fd7dc21a2eb824742c621dd76a467f30a7b2cd3d87fc8fe60af1c5a04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8032a1d7e7d87f3dd3965883c54561ffb4fc202e8cde53090d66b7d9eed82bd8
[INFO] running `Command { std: "docker" "start" "-a" "8032a1d7e7d87f3dd3965883c54561ffb4fc202e8cde53090d66b7d9eed82bd8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling binomial-iter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "8032a1d7e7d87f3dd3965883c54561ffb4fc202e8cde53090d66b7d9eed82bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8032a1d7e7d87f3dd3965883c54561ffb4fc202e8cde53090d66b7d9eed82bd8", kill_on_drop: false }`
[INFO] [stdout] 8032a1d7e7d87f3dd3965883c54561ffb4fc202e8cde53090d66b7d9eed82bd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b50205c26f190d51e56b68284086c9a02b21772774884d681b2a3e22632555a
[INFO] running `Command { std: "docker" "start" "-a" "7b50205c26f190d51e56b68284086c9a02b21772774884d681b2a3e22632555a", kill_on_drop: false }`
[INFO] [stderr]    Compiling binomial-iter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `n_iter`
[INFO] [stdout]  --> src/test.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn n_iter() {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "7b50205c26f190d51e56b68284086c9a02b21772774884d681b2a3e22632555a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b50205c26f190d51e56b68284086c9a02b21772774884d681b2a3e22632555a", kill_on_drop: false }`
[INFO] [stdout] 7b50205c26f190d51e56b68284086c9a02b21772774884d681b2a3e22632555a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10257e4b942808ed2ecc2566769a3f7f7203cc66c4213084e667a84d19327c9a
[INFO] running `Command { std: "docker" "start" "-a" "10257e4b942808ed2ecc2566769a3f7f7203cc66c4213084e667a84d19327c9a", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `n_iter`
[INFO] [stderr]  --> src/test.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn n_iter() {
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `binomial-iter` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/binomial_iter-1b155a0b8be8dd10)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::k_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests binomial-iter
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "10257e4b942808ed2ecc2566769a3f7f7203cc66c4213084e667a84d19327c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10257e4b942808ed2ecc2566769a3f7f7203cc66c4213084e667a84d19327c9a", kill_on_drop: false }`
[INFO] [stdout] 10257e4b942808ed2ecc2566769a3f7f7203cc66c4213084e667a84d19327c9a