[INFO] fetching crate private-box 0.6.0...
[INFO] testing private-box-0.6.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate private-box 0.6.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate private-box 0.6.0 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 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-14/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 1af968841c48147baa07a011cfaf563684925fe0a7df1d2f5d78205c9272f841
[INFO] running `Command { std: "docker" "start" "-a" "1af968841c48147baa07a011cfaf563684925fe0a7df1d2f5d78205c9272f841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1af968841c48147baa07a011cfaf563684925fe0a7df1d2f5d78205c9272f841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af968841c48147baa07a011cfaf563684925fe0a7df1d2f5d78205c9272f841", kill_on_drop: false }`
[INFO] [stdout] 1af968841c48147baa07a011cfaf563684925fe0a7df1d2f5d78205c9272f841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] dd5ae0c34de38c3981825fe76b8a46f069321bfa49843b07efa8aef7eb4ff821
[INFO] running `Command { std: "docker" "start" "-a" "dd5ae0c34de38c3981825fe76b8a46f069321bfa49843b07efa8aef7eb4ff821", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling signature v1.5.0
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[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 ed25519 v1.4.0
[INFO] [stderr]    Compiling universal-hash v0.4.1
[INFO] [stderr]    Compiling crypto-mac v0.10.1
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling poly1305 v0.6.2
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling curve25519-dalek v3.2.1
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling xsalsa20poly1305 v0.6.0
[INFO] [stderr]    Compiling x25519-dalek v1.2.0
[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 6.72s
[INFO] running `Command { std: "docker" "inspect" "dd5ae0c34de38c3981825fe76b8a46f069321bfa49843b07efa8aef7eb4ff821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5ae0c34de38c3981825fe76b8a46f069321bfa49843b07efa8aef7eb4ff821", kill_on_drop: false }`
[INFO] [stdout] dd5ae0c34de38c3981825fe76b8a46f069321bfa49843b07efa8aef7eb4ff821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 4e2a1cd7833e21510e7a878d8bb47eb1defeb702bb14ca3f488aee0a9b728057
[INFO] running `Command { std: "docker" "start" "-a" "4e2a1cd7833e21510e7a878d8bb47eb1defeb702bb14ca3f488aee0a9b728057", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[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 5.25s
[INFO] running `Command { std: "docker" "inspect" "4e2a1cd7833e21510e7a878d8bb47eb1defeb702bb14ca3f488aee0a9b728057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e2a1cd7833e21510e7a878d8bb47eb1defeb702bb14ca3f488aee0a9b728057", kill_on_drop: false }`
[INFO] [stdout] 4e2a1cd7833e21510e7a878d8bb47eb1defeb702bb14ca3f488aee0a9b728057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] e029bfe625131d5df6bcabed2200758980bbfaed4985582dafb7d219c17e042d
[INFO] running `Command { std: "docker" "start" "-a" "e029bfe625131d5df6bcabed2200758980bbfaed4985582dafb7d219c17e042d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/private_box-f9f8c5da89969f93)
[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 0.01s
[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 144) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e029bfe625131d5df6bcabed2200758980bbfaed4985582dafb7d219c17e042d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e029bfe625131d5df6bcabed2200758980bbfaed4985582dafb7d219c17e042d", kill_on_drop: false }`
[INFO] [stdout] e029bfe625131d5df6bcabed2200758980bbfaed4985582dafb7d219c17e042d