[INFO] fetching crate gemblockchain 0.1.1...
[INFO] testing gemblockchain-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gemblockchain 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gemblockchain 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gemblockchain 0.1.1
[INFO] finished tweaking crates.io crate gemblockchain 0.1.1
[INFO] tweaked toml for crates.io crate gemblockchain 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e35bb149d440550e68da8239f0a108926963eacaf4ade79d5fab82fff4ba456f
[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" "e35bb149d440550e68da8239f0a108926963eacaf4ade79d5fab82fff4ba456f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e35bb149d440550e68da8239f0a108926963eacaf4ade79d5fab82fff4ba456f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35bb149d440550e68da8239f0a108926963eacaf4ade79d5fab82fff4ba456f", kill_on_drop: false }`
[INFO] [stdout] e35bb149d440550e68da8239f0a108926963eacaf4ade79d5fab82fff4ba456f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19a773e6da981c9c8b1a6621a6e8ee535c051dcd3ccaed361211b9a12584fe66
[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" "19a773e6da981c9c8b1a6621a6e8ee535c051dcd3ccaed361211b9a12584fe66", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling blake2 v0.7.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.4
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling gemblockchain v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/bytebuffer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn from_bytes(b: &[u8]) -> Buffer {
[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 21.63s
[INFO] running `Command { std: "docker" "inspect" "19a773e6da981c9c8b1a6621a6e8ee535c051dcd3ccaed361211b9a12584fe66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a773e6da981c9c8b1a6621a6e8ee535c051dcd3ccaed361211b9a12584fe66", kill_on_drop: false }`
[INFO] [stdout] 19a773e6da981c9c8b1a6621a6e8ee535c051dcd3ccaed361211b9a12584fe66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bc00e44c124320bee778f54e0bb1f7db0080b757f846a17d4910d01d6ea65b2
[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" "8bc00e44c124320bee778f54e0bb1f7db0080b757f846a17d4910d01d6ea65b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling gemblockchain v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/bytebuffer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn from_bytes(b: &[u8]) -> Buffer {
[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: `from_bytes`
[INFO] [stdout]   --> src/bytebuffer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn from_bytes(b: &[u8]) -> Buffer {
[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 2.55s
[INFO] running `Command { std: "docker" "inspect" "8bc00e44c124320bee778f54e0bb1f7db0080b757f846a17d4910d01d6ea65b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc00e44c124320bee778f54e0bb1f7db0080b757f846a17d4910d01d6ea65b2", kill_on_drop: false }`
[INFO] [stdout] 8bc00e44c124320bee778f54e0bb1f7db0080b757f846a17d4910d01d6ea65b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 661c3094d6e4cc918ac8b078b0bde4e0011bc16bf72310d8601c7f63362ad470
[INFO] running `Command { std: "docker" "start" "-a" "661c3094d6e4cc918ac8b078b0bde4e0011bc16bf72310d8601c7f63362ad470", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `from_bytes`
[INFO] [stderr]   --> src/bytebuffer.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn from_bytes(b: &[u8]) -> Buffer {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_bytes`
[INFO] [stderr]   --> src/bytebuffer.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn from_bytes(b: &[u8]) -> Buffer {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gemblockchain-6cf6c420be26ff15
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test transaction::tests::test_tx_ids ... ok
[INFO] [stdout] test util::tests::test_sig_roundtrip ... ok
[INFO] [stdout] test account::tests::test_key_pair_to_string ... ok
[INFO] [stdout] test transaction::tests::test_sign ... ok
[INFO] [stdout] test account::tests::test_hashes ... ok
[INFO] [stdout] test account::tests::test_private_key_from_seed ... ok
[INFO] [stdout] test util::tests::test_sig_verify ... ok
[INFO] [stdout] test seed::tests::test_generate_phrase ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gemblockchain
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/account.rs - account::PrivateKeyAccount (line 73) ... ok
[INFO] [stdout] test src/seed.rs - seed::generate_phrase (line 5) ... ok
[INFO] [stdout] test src/transaction.rs - transaction::Transaction (line 129) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "661c3094d6e4cc918ac8b078b0bde4e0011bc16bf72310d8601c7f63362ad470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661c3094d6e4cc918ac8b078b0bde4e0011bc16bf72310d8601c7f63362ad470", kill_on_drop: false }`
[INFO] [stdout] 661c3094d6e4cc918ac8b078b0bde4e0011bc16bf72310d8601c7f63362ad470