[INFO] fetching crate secret-tree 0.4.0...
[INFO] testing secret-tree-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate secret-tree 0.4.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate secret-tree 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate secret-tree 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate secret-tree 0.4.0
[INFO] tweaked toml for crates.io crate secret-tree 0.4.0 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate crates.io crate secret-tree 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7a11f6a82d4114a03ded6a55f82e5691387e6b9e1f0be19f85b0a10e1cdee92
[INFO] running `Command { std: "docker" "start" "-a" "b7a11f6a82d4114a03ded6a55f82e5691387e6b9e1f0be19f85b0a10e1cdee92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7a11f6a82d4114a03ded6a55f82e5691387e6b9e1f0be19f85b0a10e1cdee92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a11f6a82d4114a03ded6a55f82e5691387e6b9e1f0be19f85b0a10e1cdee92", kill_on_drop: false }`
[INFO] [stdout] b7a11f6a82d4114a03ded6a55f82e5691387e6b9e1f0be19f85b0a10e1cdee92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1a3b2c047d4f9c0c66357dfceed1ac47990a58868a19fef13e41c18af751506
[INFO] running `Command { std: "docker" "start" "-a" "a1a3b2c047d4f9c0c66357dfceed1ac47990a58868a19fef13e41c18af751506", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling secrecy v0.7.0
[INFO] [stderr]    Compiling secret-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.23s
[INFO] running `Command { std: "docker" "inspect" "a1a3b2c047d4f9c0c66357dfceed1ac47990a58868a19fef13e41c18af751506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a3b2c047d4f9c0c66357dfceed1ac47990a58868a19fef13e41c18af751506", kill_on_drop: false }`
[INFO] [stdout] a1a3b2c047d4f9c0c66357dfceed1ac47990a58868a19fef13e41c18af751506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 815d31144572ae96eb3961d0b225e733ed0bb964ab53eccb46c46bcb5fa768d4
[INFO] running `Command { std: "docker" "start" "-a" "815d31144572ae96eb3961d0b225e733ed0bb964ab53eccb46c46bcb5fa768d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling signature v1.3.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling const-decoder v0.1.0
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.10.0
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling ed25519 v1.0.3
[INFO] [stderr]    Compiling sha2 v0.9.3
[INFO] [stderr]    Compiling pbkdf2 v0.6.0
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling scrypt v0.5.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling curve25519-dalek v3.1.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling hex-buffer-serde v0.2.2
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling pwbox v0.4.0
[INFO] [stderr]    Compiling version-sync v0.9.2
[INFO] [stderr]    Compiling secret-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.46s
[INFO] running `Command { std: "docker" "inspect" "815d31144572ae96eb3961d0b225e733ed0bb964ab53eccb46c46bcb5fa768d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815d31144572ae96eb3961d0b225e733ed0bb964ab53eccb46c46bcb5fa768d4", kill_on_drop: false }`
[INFO] [stdout] 815d31144572ae96eb3961d0b225e733ed0bb964ab53eccb46c46bcb5fa768d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b40c288a97d2182ceaaf0831ce9eab7622df9704997dc0944018c543eec66fff
[INFO] running `Command { std: "docker" "start" "-a" "b40c288a97d2182ceaaf0831ce9eab7622df9704997dc0944018c543eec66fff", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/secret_tree-3d20c7d35962ef5f)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test kdf::sodium_test_vectors_64byte_output ... ok
[INFO] [stdout] test tests::children_with_same_bytes_in_key ... ok
[INFO] [stdout] test kdf::sodium_test_vectors_varying_len_output ... ok
[INFO] [stdout] test tests::fill_and_rng_result_in_different_data ... ok
[INFO] [stdout] test tests::filling_acceptable_buffers ... ok
[INFO] [stdout] test tests::buffers_with_different_size_should_be_unrelated ... ok
[INFO] [stdout] test tests::name_new_pads_input_with_zeros ... ok
[INFO] [stdout] test tests::name_with_null_chars_error ... ok
[INFO] [stdout] test tests::overly_long_name_error ... ok
[INFO] [stdout] test tests::name_with_null_chars_cannot_be_created - should panic ... ok
[INFO] [stdout] test tests::filling_oversized_key - should panic ... ok
[INFO] [stdout] test tests::filling_undersized_key - should panic ... ok
[INFO] [stdout] test tests::overly_long_name_cannot_be_created - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/version_match.rs (/opt/rustwide/target/debug/deps/version_match-2d27498d881c6f48)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test readme_is_in_sync ... ok
[INFO] [stderr]    Doc-tests secret-tree
[INFO] [stdout] test html_root_url_is_in_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 486) ... FAILED
[INFO] [stdout] test src/lib.rs - SecretTree (line 162) ... FAILED
[INFO] [stdout] test src/lib.rs - Name::new (line 362) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - Name::new (line 355) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - Name::new (line 348) ... ok
[INFO] [stdout] test src/lib.rs - Name (line 330) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 486) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `rand::thread_rng`
[INFO] [stdout]  --> src/lib.rs:488:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{Rng, thread_rng};
[INFO] [stdout]   |                 ^^^^^^^^^^ no `thread_rng` in the root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - SecretTree (line 162) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `rand::thread_rng`
[INFO] [stdout]  --> src/lib.rs:164:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{Rng, thread_rng};
[INFO] [stdout]   |                 ^^^^^^^^^^ no `thread_rng` in the root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 486)
[INFO] [stdout]     src/lib.rs - SecretTree (line 162)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "b40c288a97d2182ceaaf0831ce9eab7622df9704997dc0944018c543eec66fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b40c288a97d2182ceaaf0831ce9eab7622df9704997dc0944018c543eec66fff", kill_on_drop: false }`
[INFO] [stdout] b40c288a97d2182ceaaf0831ce9eab7622df9704997dc0944018c543eec66fff