[INFO] fetching crate hashers 1.0.1...
[INFO] checking hashers-1.0.1 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate hashers 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate hashers 1.0.1 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashers 1.0.1
[INFO] finished tweaking crates.io crate hashers 1.0.1
[INFO] tweaked toml for crates.io crate hashers 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2af15862b4918ea8c4a22f4ba9e4ff07759acc64a6c903a3a67ea21a88c59be
[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" "e2af15862b4918ea8c4a22f4ba9e4ff07759acc64a6c903a3a67ea21a88c59be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2af15862b4918ea8c4a22f4ba9e4ff07759acc64a6c903a3a67ea21a88c59be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2af15862b4918ea8c4a22f4ba9e4ff07759acc64a6c903a3a67ea21a88c59be", kill_on_drop: false }`
[INFO] [stdout] e2af15862b4918ea8c4a22f4ba9e4ff07759acc64a6c903a3a67ea21a88c59be
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3254c196960a007164a5828d6df026c5537e047e397ca2f2b4aa44caa82cde71
[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" "3254c196960a007164a5828d6df026c5537e047e397ca2f2b4aa44caa82cde71", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking hashers v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:381:5
[INFO] [stdout]     |
[INFO] [stdout] 381 |     /// Provide a default PassThroughHasher initialized to 0.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/pigeon.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     (x.wrapping_shl(32) | x.wrapping_shr(32))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/jenkins/spooky_hash.rs:519:25
[INFO] [stdout]     |
[INFO] [stdout] 519 |                     let mut data: &[Wrapping<u64>] =
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/jenkins/spooky_hash.rs:530:25
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     let mut data: &[Wrapping<u64>] =
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:381:5
[INFO] [stdout]     |
[INFO] [stdout] 381 |     /// Provide a default PassThroughHasher initialized to 0.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/pigeon.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     (x.wrapping_shl(32) | x.wrapping_shr(32))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/jenkins/spooky_hash.rs:519:25
[INFO] [stdout]     |
[INFO] [stdout] 519 |                     let mut data: &[Wrapping<u64>] =
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/jenkins/spooky_hash.rs:530:25
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     let mut data: &[Wrapping<u64>] =
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "3254c196960a007164a5828d6df026c5537e047e397ca2f2b4aa44caa82cde71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3254c196960a007164a5828d6df026c5537e047e397ca2f2b4aa44caa82cde71", kill_on_drop: false }`
[INFO] [stdout] 3254c196960a007164a5828d6df026c5537e047e397ca2f2b4aa44caa82cde71