[INFO] fetching crate varu64 0.7.0...
[INFO] building varu64-0.7.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate varu64 0.7.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate varu64 0.7.0
[INFO] finished tweaking crates.io crate varu64 0.7.0
[INFO] tweaked toml for crates.io crate varu64 0.7.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate varu64 0.7.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.7.2 (available: v1.0.3)
[INFO] [stderr]       Adding snafu v0.6.10 (available: v0.8.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 187e15855f98bd469d9dcbbcbdb87d61bccc6f7ce19930addc3d1ef844f24c7e
[INFO] running `Command { std: "docker" "start" "-a" "187e15855f98bd469d9dcbbcbdb87d61bccc6f7ce19930addc3d1ef844f24c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "187e15855f98bd469d9dcbbcbdb87d61bccc6f7ce19930addc3d1ef844f24c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187e15855f98bd469d9dcbbcbdb87d61bccc6f7ce19930addc3d1ef844f24c7e", kill_on_drop: false }`
[INFO] [stdout] 187e15855f98bd469d9dcbbcbdb87d61bccc6f7ce19930addc3d1ef844f24c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f381fe1a74ddd492db94a84ef4ff982c70c25c85cec92462b6ff12849f42d816
[INFO] running `Command { std: "docker" "start" "-a" "f381fe1a74ddd492db94a84ef4ff982c70c25c85cec92462b6ff12849f42d816", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling varu64 v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:140:35
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let bytes: [u8; 8] = unsafe { core::mem::transmute(u64::to_be(n)) };
[INFO] [stdout]     |                                   --------------------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: replace this with: `u64::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "f381fe1a74ddd492db94a84ef4ff982c70c25c85cec92462b6ff12849f42d816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f381fe1a74ddd492db94a84ef4ff982c70c25c85cec92462b6ff12849f42d816", kill_on_drop: false }`
[INFO] [stdout] f381fe1a74ddd492db94a84ef4ff982c70c25c85cec92462b6ff12849f42d816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af34580da8273b2338ad3b42cfa079431b9bae55ecb88635e4a4a3e020b470d9
[INFO] running `Command { std: "docker" "start" "-a" "af34580da8273b2338ad3b42cfa079431b9bae55ecb88635e4a4a3e020b470d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:140:35
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let bytes: [u8; 8] = unsafe { core::mem::transmute(u64::to_be(n)) };
[INFO] [stdout]     |                                   --------------------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: replace this with: `u64::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling quickcheck v0.7.2
[INFO] [stderr]    Compiling varu64 v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:140:35
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let bytes: [u8; 8] = unsafe { core::mem::transmute(u64::to_be(n)) };
[INFO] [stdout]     |                                   --------------------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: replace this with: `u64::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "af34580da8273b2338ad3b42cfa079431b9bae55ecb88635e4a4a3e020b470d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af34580da8273b2338ad3b42cfa079431b9bae55ecb88635e4a4a3e020b470d9", kill_on_drop: false }`
[INFO] [stdout] af34580da8273b2338ad3b42cfa079431b9bae55ecb88635e4a4a3e020b470d9