[INFO] fetching crate blot-lib 0.1.2...
[INFO] checking blot-lib-0.1.2 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate blot-lib 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate blot-lib 0.1.2 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blot-lib 0.1.2
[INFO] finished tweaking crates.io crate blot-lib 0.1.2
[INFO] tweaked toml for crates.io crate blot-lib 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crypto-mac v0.7.0
[INFO] [stderr]   Downloaded hex v0.3.2
[INFO] [stderr]   Downloaded sha-1 v0.8.2
[INFO] [stderr]   Downloaded subtle v1.0.0
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded sha3 v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd398d8c772401a2a122917d42e87285989d6ef8b318f4509f8b24a70c0a5de5
[INFO] running `Command { std: "docker" "start" "-a" "fd398d8c772401a2a122917d42e87285989d6ef8b318f4509f8b24a70c0a5de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd398d8c772401a2a122917d42e87285989d6ef8b318f4509f8b24a70c0a5de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd398d8c772401a2a122917d42e87285989d6ef8b318f4509f8b24a70c0a5de5", kill_on_drop: false }`
[INFO] [stdout] fd398d8c772401a2a122917d42e87285989d6ef8b318f4509f8b24a70c0a5de5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b97f4caf4018fa2a1adc323934b93233d4947315a3a943975819b17944b9c85d
[INFO] running `Command { std: "docker" "start" "-a" "b97f4caf4018fa2a1adc323934b93233d4947315a3a943975819b17944b9c85d", kill_on_drop: false }`
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking blot-lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/core.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn blot<T: Multihash>(&self, &T) -> Harvest;
[INFO] [stdout]    |                                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/core.rs:18:34
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn blot<T: Multihash>(&self, &T) -> Harvest;
[INFO] [stdout]    |                                  ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/value/mod.rs:79:46
[INFO] [stdout]    |
[INFO] [stdout] 79 |               Value::Timestamp(raw) => digester
[INFO] [stdout]    |  ______________________________________________^
[INFO] [stdout] 80 | |                 .clone()
[INFO] [stdout]    | |________________________^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `D` does not implement `Clone`, so calling `clone` on `&D` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/value/mod.rs:100:25
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 digester.clone().digest_collection(Tag::Set, list)
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `D` does not implement `Clone`, so calling `clone` on `&D` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/value/mod.rs:111:17
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let mut temp_vec = Vec::new();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 293 |         let value: Value<Sha2256> = set!{"foo", 23.6, set!{set!{}}, set!{set!{1}}};
[INFO] [stdout]     |                                                            ------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/value/mod.rs:111:17
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let mut temp_vec = Vec::new();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 306 |             set!{set!{}},
[INFO] [stdout]     |                  ------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/value/mod.rs:111:17
[INFO] [stdout]     |
[INFO] [stdout] 111 |             let mut temp_vec = Vec::new();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 308 |             set!{set!{}}
[INFO] [stdout]     |                  ------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/value/mod.rs:79:46
[INFO] [stdout]    |
[INFO] [stdout] 79 |               Value::Timestamp(raw) => digester
[INFO] [stdout]    |  ______________________________________________^
[INFO] [stdout] 80 | |                 .clone()
[INFO] [stdout]    | |________________________^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `D` does not implement `Clone`, so calling `clone` on `&D` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/value/mod.rs:100:25
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 digester.clone().digest_collection(Tag::Set, list)
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `D` does not implement `Clone`, so calling `clone` on `&D` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "b97f4caf4018fa2a1adc323934b93233d4947315a3a943975819b17944b9c85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97f4caf4018fa2a1adc323934b93233d4947315a3a943975819b17944b9c85d", kill_on_drop: false }`
[INFO] [stdout] b97f4caf4018fa2a1adc323934b93233d4947315a3a943975819b17944b9c85d
