[INFO] fetching crate private-box 0.6.0...
[INFO] testing private-box-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate private-box 0.6.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate private-box 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate private-box 0.6.0
[INFO] finished tweaking crates.io crate private-box 0.6.0
[INFO] tweaked toml for crates.io crate private-box 0.6.0 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86bfcbf2a3ecec58a36d9afec9861391fcd20a44a134d51375f8dc93884e1e5a
[INFO] running `Command { std: "docker" "start" "-a" "86bfcbf2a3ecec58a36d9afec9861391fcd20a44a134d51375f8dc93884e1e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86bfcbf2a3ecec58a36d9afec9861391fcd20a44a134d51375f8dc93884e1e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86bfcbf2a3ecec58a36d9afec9861391fcd20a44a134d51375f8dc93884e1e5a", kill_on_drop: false }`
[INFO] [stdout] 86bfcbf2a3ecec58a36d9afec9861391fcd20a44a134d51375f8dc93884e1e5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4165456f1ac069134744079c320d1bc7ad04c3327758d7aa577b428a8590f51c
[INFO] running `Command { std: "docker" "start" "-a" "4165456f1ac069134744079c320d1bc7ad04c3327758d7aa577b428a8590f51c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling signature v1.3.1
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling ed25519 v1.2.0
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling universal-hash v0.4.1
[INFO] [stderr]    Compiling crypto-mac v0.10.1
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling poly1305 v0.6.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stderr]    Compiling zeroize v1.4.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling curve25519-dalek v3.2.0
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling xsalsa20poly1305 v0.6.0
[INFO] [stderr]    Compiling x25519-dalek v1.1.1
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling ssb-crypto v0.2.3
[INFO] [stderr]    Compiling private-box v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/private_box.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     &cyphertext[56..]
[INFO] [stdout] 178 | |         .chunks_exact(BOXED_KEY_SIZE_BYTES)
[INFO] [stdout] 179 | |         .take(MAX_RECIPIENTS)
[INFO] [stdout] 180 | |         .find(|b| key_key.open_attached_into(b, &nonce, msg_key.as_bytes_mut()))?;
[INFO] [stdout]     | |_________________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let _ = &cyphertext[56..]
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.00s
[INFO] running `Command { std: "docker" "inspect" "4165456f1ac069134744079c320d1bc7ad04c3327758d7aa577b428a8590f51c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4165456f1ac069134744079c320d1bc7ad04c3327758d7aa577b428a8590f51c", kill_on_drop: false }`
[INFO] [stdout] 4165456f1ac069134744079c320d1bc7ad04c3327758d7aa577b428a8590f51c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 320a5f2fe897615d8ef242689a08cf858ea2db583930471b62a4b65c51a2d5a3
[INFO] running `Command { std: "docker" "start" "-a" "320a5f2fe897615d8ef242689a08cf858ea2db583930471b62a4b65c51a2d5a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/private_box.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     &cyphertext[56..]
[INFO] [stdout] 178 | |         .chunks_exact(BOXED_KEY_SIZE_BYTES)
[INFO] [stdout] 179 | |         .take(MAX_RECIPIENTS)
[INFO] [stdout] 180 | |         .find(|b| key_key.open_attached_into(b, &nonce, msg_key.as_bytes_mut()))?;
[INFO] [stdout]     | |_________________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let _ = &cyphertext[56..]
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling private-box v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/private_box.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     &cyphertext[56..]
[INFO] [stdout] 178 | |         .chunks_exact(BOXED_KEY_SIZE_BYTES)
[INFO] [stdout] 179 | |         .take(MAX_RECIPIENTS)
[INFO] [stdout] 180 | |         .find(|b| key_key.open_attached_into(b, &nonce, msg_key.as_bytes_mut()))?;
[INFO] [stdout]     | |_________________________________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let _ = &cyphertext[56..]
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "320a5f2fe897615d8ef242689a08cf858ea2db583930471b62a4b65c51a2d5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320a5f2fe897615d8ef242689a08cf858ea2db583930471b62a4b65c51a2d5a3", kill_on_drop: false }`
[INFO] [stdout] 320a5f2fe897615d8ef242689a08cf858ea2db583930471b62a4b65c51a2d5a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8fd8adc94586f8ad612b27185a7e112d5ec039b454aae3d04261108fb03232f9
[INFO] running `Command { std: "docker" "start" "-a" "8fd8adc94586f8ad612b27185a7e112d5ec039b454aae3d04261108fb03232f9", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/private_box.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 | /     &cyphertext[56..]
[INFO] [stderr] 178 | |         .chunks_exact(BOXED_KEY_SIZE_BYTES)
[INFO] [stderr] 179 | |         .take(MAX_RECIPIENTS)
[INFO] [stderr] 180 | |         .find(|b| key_key.open_attached_into(b, &nonce, msg_key.as_bytes_mut()))?;
[INFO] [stderr]     | |_________________________________________________________________________________^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let _ = &cyphertext[56..]
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `private-box` (lib) generated 1 warning
[INFO] [stderr] warning: `private-box` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/private_box-ac32ef044ebabbad)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test private_box::tests::is_js_compatible ... ok
[INFO] [stdout] test private_box::tests::simple ... ok
[INFO] [stdout] test private_box::tests::passing_zero_recipients_panics - should panic ... ok
[INFO] [stdout] test private_box::tests::passing_too_many_recipients_panics - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests private-box
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/private_box.rs - private_box::encrypt (line 71) ... ok
[INFO] [stdout] test src/private_box.rs - private_box::decrypt (line 145) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8fd8adc94586f8ad612b27185a7e112d5ec039b454aae3d04261108fb03232f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd8adc94586f8ad612b27185a7e112d5ec039b454aae3d04261108fb03232f9", kill_on_drop: false }`
[INFO] [stdout] 8fd8adc94586f8ad612b27185a7e112d5ec039b454aae3d04261108fb03232f9