[INFO] fetching crate merkle-log 0.0.6...
[INFO] testing merkle-log-0.0.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate merkle-log 0.0.6 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate merkle-log 0.0.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle-log 0.0.6
[INFO] finished tweaking crates.io crate merkle-log 0.0.6
[INFO] tweaked toml for crates.io crate merkle-log 0.0.6 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a5edea57ca0065595de0b41a632be1cc6b6eb9e4ed2cbcaab440c62c24b1af2
[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" "3a5edea57ca0065595de0b41a632be1cc6b6eb9e4ed2cbcaab440c62c24b1af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a5edea57ca0065595de0b41a632be1cc6b6eb9e4ed2cbcaab440c62c24b1af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a5edea57ca0065595de0b41a632be1cc6b6eb9e4ed2cbcaab440c62c24b1af2", kill_on_drop: false }`
[INFO] [stdout] 3a5edea57ca0065595de0b41a632be1cc6b6eb9e4ed2cbcaab440c62c24b1af2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-02-22" "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] cab77c7bcbbe8a4179632fd4c8e057eac3d17219bd7a166609d119cd6709fd20
[INFO] running `Command { std: "docker" "start" "-a" "cab77c7bcbbe8a4179632fd4c8e057eac3d17219bd7a166609d119cd6709fd20", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle-log v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `root_id`
[INFO] [stdout]    --> src/util.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |     pub(crate) const fn root_id(size: u64) -> Self {
[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 dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "cab77c7bcbbe8a4179632fd4c8e057eac3d17219bd7a166609d119cd6709fd20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab77c7bcbbe8a4179632fd4c8e057eac3d17219bd7a166609d119cd6709fd20", kill_on_drop: false }`
[INFO] [stdout] cab77c7bcbbe8a4179632fd4c8e057eac3d17219bd7a166609d119cd6709fd20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd6a37b9260124a6bf99633c7d6481a005f5e52bc6c5e531def91bf97f95df3d
[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" "bd6a37b9260124a6bf99633c7d6481a005f5e52bc6c5e531def91bf97f95df3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle-log v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `root_id`
[INFO] [stdout]    --> src/util.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |     pub(crate) const fn root_id(size: u64) -> Self {
[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] [stdout] warning: associated function is never used: `root_id`
[INFO] [stdout]    --> src/util.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |     pub(crate) const fn root_id(size: u64) -> Self {
[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 2.18s
[INFO] running `Command { std: "docker" "inspect" "bd6a37b9260124a6bf99633c7d6481a005f5e52bc6c5e531def91bf97f95df3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6a37b9260124a6bf99633c7d6481a005f5e52bc6c5e531def91bf97f95df3d", kill_on_drop: false }`
[INFO] [stdout] bd6a37b9260124a6bf99633c7d6481a005f5e52bc6c5e531def91bf97f95df3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-02-22" "test" "--frozen", 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] 5015846eb3cdefa8905bf61a5ed751a0d395a3383bb1431ca968cfcd052899d0
[INFO] running `Command { std: "docker" "start" "-a" "5015846eb3cdefa8905bf61a5ed751a0d395a3383bb1431ca968cfcd052899d0", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `root_id`
[INFO] [stderr]    --> src/util.rs:502:25
[INFO] [stderr]     |
[INFO] [stderr] 502 |     pub(crate) const fn root_id(size: u64) -> Self {
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `merkle-log` (lib) generated 1 warning
[INFO] [stderr] warning: `merkle-log` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_log-348aa3e01387b00f)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::creation ... ok
[INFO] [stderr]    Doc-tests merkle-log
[INFO] [stdout] test tests::prove_and_verify ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/util.rs - util::TreeID::is_leaf (line 201) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::spans (line 377) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::new (line 177) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::sibling (line 276) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::left (line 309) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::depth (line 238) ... ok
[INFO] [stdout] test src/lib.rs - MerkleLog<D,N>::append (line 279) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::span (line 353) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::parent (line 255) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::appending_ids (line 472) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::index (line 217) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::right (line 331) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::proving_ids (line 448) ... ok
[INFO] [stdout] test src/lib.rs - MerkleLog<D,N>::appending_ids (line 249) ... ok
[INFO] [stdout] test src/lib.rs - MerkleLog (line 39) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::subroots (line 399) ... ok
[INFO] [stdout] test src/lib.rs - MerkleLog<D,N>::proving_ids (line 137) ... ok
[INFO] [stdout] test src/util.rs - util::TreeID::uncle (line 292) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5015846eb3cdefa8905bf61a5ed751a0d395a3383bb1431ca968cfcd052899d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5015846eb3cdefa8905bf61a5ed751a0d395a3383bb1431ca968cfcd052899d0", kill_on_drop: false }`
[INFO] [stdout] 5015846eb3cdefa8905bf61a5ed751a0d395a3383bb1431ca968cfcd052899d0