[INFO] fetching crate sp4r53 0.1.4...
[INFO] testing sp4r53-0.1.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate sp4r53 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sp4r53 0.1.4 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 sp4r53 0.1.4
[INFO] finished tweaking crates.io crate sp4r53 0.1.4
[INFO] tweaked toml for crates.io crate sp4r53 0.1.4 written to /workspace/builds/worker-2/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] 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] f0d73d4d2e2a36ad7f5dee7a60c1744e4bbf30aa9977926c28ec7c068aa3301f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f0d73d4d2e2a36ad7f5dee7a60c1744e4bbf30aa9977926c28ec7c068aa3301f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0d73d4d2e2a36ad7f5dee7a60c1744e4bbf30aa9977926c28ec7c068aa3301f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0d73d4d2e2a36ad7f5dee7a60c1744e4bbf30aa9977926c28ec7c068aa3301f", kill_on_drop: false }`
[INFO] [stdout] f0d73d4d2e2a36ad7f5dee7a60c1744e4bbf30aa9977926c28ec7c068aa3301f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f358d7a90ee5bb7f607dd34c4d1e8093e4e0d00937bc4da2e2d12aba4c722a9
[INFO] running `Command { std: "docker" "start" "-a" "8f358d7a90ee5bb7f607dd34c4d1e8093e4e0d00937bc4da2e2d12aba4c722a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ethnum v1.1.1
[INFO] [stderr]    Compiling sp4r53 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "8f358d7a90ee5bb7f607dd34c4d1e8093e4e0d00937bc4da2e2d12aba4c722a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f358d7a90ee5bb7f607dd34c4d1e8093e4e0d00937bc4da2e2d12aba4c722a9", kill_on_drop: false }`
[INFO] [stdout] 8f358d7a90ee5bb7f607dd34c4d1e8093e4e0d00937bc4da2e2d12aba4c722a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e089b4337cce83cc25fe9f54b28e27a8648e5e6cb55591cf918a16285b79b47b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e089b4337cce83cc25fe9f54b28e27a8648e5e6cb55591cf918a16285b79b47b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling sp4r53 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/works.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut hashes = [
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` 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 18.21s
[INFO] running `Command { std: "docker" "inspect" "e089b4337cce83cc25fe9f54b28e27a8648e5e6cb55591cf918a16285b79b47b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e089b4337cce83cc25fe9f54b28e27a8648e5e6cb55591cf918a16285b79b47b", kill_on_drop: false }`
[INFO] [stdout] e089b4337cce83cc25fe9f54b28e27a8648e5e6cb55591cf918a16285b79b47b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 31c7424e910ec6f2bd290c1fdd1f60ed4c33a5d02baf1c6e3fc86a6fa8661731
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "31c7424e910ec6f2bd290c1fdd1f60ed4c33a5d02baf1c6e3fc86a6fa8661731", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/works.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut hashes = [
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sp4r53` (test "works") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sp4r53-ae83bcdee674e4cf)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/props.rs (/opt/rustwide/target/debug/deps/props-87845390a7c87a76)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/works.rs (/opt/rustwide/target/debug/deps/works-351e75f6989794dd)
[INFO] [stdout] test prop_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sp4r53
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - Proof::hashes (line 675) ... ok
[INFO] [stdout] test src/lib.rs - Proof::from_bytes (line 538) ... ok
[INFO] [stdout] test src/lib.rs - Tree::insert (line 353) ... ok
[INFO] [stdout] test src/lib.rs - Tree::remove (line 394) ... ok
[INFO] [stdout] test src/lib.rs - Proof::verify (line 721) ... ok
[INFO] [stdout] test src/lib.rs - Tree::root (line 200) ... ok
[INFO] [stdout] test src/lib.rs - Tree::leaves (line 237) ... ok
[INFO] [stdout] test src/lib.rs - Proof::as_bytes (line 642) ... ok
[INFO] [stdout] test src/lib.rs - Proof::size (line 577) ... ok
[INFO] [stdout] test src/lib.rs - Proof::new (line 487) ... ok
[INFO] [stdout] test src/lib.rs - Tree::is_valid (line 269) ... ok
[INFO] [stdout] test src/lib.rs - Tree::flush (line 436) ... ok
[INFO] [stdout] test src/lib.rs - Tree::proove (line 315) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31c7424e910ec6f2bd290c1fdd1f60ed4c33a5d02baf1c6e3fc86a6fa8661731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c7424e910ec6f2bd290c1fdd1f60ed4c33a5d02baf1c6e3fc86a6fa8661731", kill_on_drop: false }`
[INFO] [stdout] 31c7424e910ec6f2bd290c1fdd1f60ed4c33a5d02baf1c6e3fc86a6fa8661731