[INFO] fetching crate rolling-median 1.2.0...
[INFO] checking rolling-median-1.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rolling-median 1.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rolling-median 1.2.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rolling-median 1.2.0
[INFO] tweaked toml for crates.io crate rolling-median 1.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rolling-median 1.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rolling-median 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87c9fb48ef37fcdd127e3ea553a8e379aae1c63381adb4bedf4fcc5e6ef8e2ea
[INFO] running `Command { std: "docker" "start" "-a" "87c9fb48ef37fcdd127e3ea553a8e379aae1c63381adb4bedf4fcc5e6ef8e2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87c9fb48ef37fcdd127e3ea553a8e379aae1c63381adb4bedf4fcc5e6ef8e2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87c9fb48ef37fcdd127e3ea553a8e379aae1c63381adb4bedf4fcc5e6ef8e2ea", kill_on_drop: false }`
[INFO] [stdout] 87c9fb48ef37fcdd127e3ea553a8e379aae1c63381adb4bedf4fcc5e6ef8e2ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2009565f58c360158cdd2aaa8db318146ee7448b96a35d8b21acade3b54e3550
[INFO] running `Command { std: "docker" "start" "-a" "2009565f58c360158cdd2aaa8db318146ee7448b96a35d8b21acade3b54e3550", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking ordered-float v5.1.0
[INFO] [stderr]     Checking rand_pcg v0.9.0
[INFO] [stderr]     Checking rolling-median v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> tests/median_test.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let value = random.try_next_u64().unwrap() as f64;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rolling-median` (test "median_test") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2009565f58c360158cdd2aaa8db318146ee7448b96a35d8b21acade3b54e3550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2009565f58c360158cdd2aaa8db318146ee7448b96a35d8b21acade3b54e3550", kill_on_drop: false }`
[INFO] [stdout] 2009565f58c360158cdd2aaa8db318146ee7448b96a35d8b21acade3b54e3550