[INFO] fetching crate srand 0.4.0...
[INFO] testing srand-0.4.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate srand 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate srand 0.4.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srand 0.4.0
[INFO] finished tweaking crates.io crate srand 0.4.0
[INFO] tweaked toml for crates.io crate srand 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1f22556d92c1deb2d5e12a44527f26c2b42f7f02c8bdf822ffc7a0dfe040e6b
[INFO] running `Command { std: "docker" "start" "-a" "d1f22556d92c1deb2d5e12a44527f26c2b42f7f02c8bdf822ffc7a0dfe040e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1f22556d92c1deb2d5e12a44527f26c2b42f7f02c8bdf822ffc7a0dfe040e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f22556d92c1deb2d5e12a44527f26c2b42f7f02c8bdf822ffc7a0dfe040e6b", kill_on_drop: false }`
[INFO] [stdout] d1f22556d92c1deb2d5e12a44527f26c2b42f7f02c8bdf822ffc7a0dfe040e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d5f3bf567ba5439277341660990a4868aebc914c1c7c26fdcd88a37e8d51d1
[INFO] running `Command { std: "docker" "start" "-a" "c0d5f3bf567ba5439277341660990a4868aebc914c1c7c26fdcd88a37e8d51d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling srand v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this arithmetic operation will overflow
[INFO] [stdout]    --> src/rand.rs:217:48
[INFO] [stdout]     |
[INFO] [stdout] 217 |             let f: f64 = self.int64() as f64 / (1 << 63) as f64;
[INFO] [stdout]     |                                                ^^^^^^^^^ attempt to shift left by `63_i32`, which would overflow
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `srand` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c0d5f3bf567ba5439277341660990a4868aebc914c1c7c26fdcd88a37e8d51d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d5f3bf567ba5439277341660990a4868aebc914c1c7c26fdcd88a37e8d51d1", kill_on_drop: false }`
[INFO] [stdout] c0d5f3bf567ba5439277341660990a4868aebc914c1c7c26fdcd88a37e8d51d1