[INFO] fetching crate porco 0.1.4...
[INFO] checking porco-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate porco 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate porco 0.1.4
[INFO] finished tweaking crates.io crate porco 0.1.4
[INFO] tweaked toml for crates.io crate porco 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate porco 0.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[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] [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f817e4ac37d6819f0dc7aa0789cd56a869a409e0457fd94a727c725390adb45
[INFO] running `Command { std: "docker" "start" "-a" "3f817e4ac37d6819f0dc7aa0789cd56a869a409e0457fd94a727c725390adb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f817e4ac37d6819f0dc7aa0789cd56a869a409e0457fd94a727c725390adb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f817e4ac37d6819f0dc7aa0789cd56a869a409e0457fd94a727c725390adb45", kill_on_drop: false }`
[INFO] [stdout] 3f817e4ac37d6819f0dc7aa0789cd56a869a409e0457fd94a727c725390adb45
[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 -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] 43b7a80757643a9bac5e42258dae4dff769b78d6e572c05849fd8d419295e1c5
[INFO] running `Command { std: "docker" "start" "-a" "43b7a80757643a9bac5e42258dae4dff769b78d6e572c05849fd8d419295e1c5", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking assoc v0.1.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking porco v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/dist.rs:358:50
[INFO] [stdout]     |
[INFO] [stdout] 358 |         Distribution::from_iter(array::IntoIter::new(s))
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Probability, Infallible>
[INFO] [stdout]   --> src/prob.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Probability::try_from(p).expect("The probability is between 0.0 and 1.0")
[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 `porco` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/dist.rs:358:50
[INFO] [stdout]     |
[INFO] [stdout] 358 |         Distribution::from_iter(array::IntoIter::new(s))
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `porco` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<Probability, Infallible>
[INFO] [stdout]   --> src/prob.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Probability::try_from(p).expect("The probability is between 0.0 and 1.0")
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "43b7a80757643a9bac5e42258dae4dff769b78d6e572c05849fd8d419295e1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b7a80757643a9bac5e42258dae4dff769b78d6e572c05849fd8d419295e1c5", kill_on_drop: false }`
[INFO] [stdout] 43b7a80757643a9bac5e42258dae4dff769b78d6e572c05849fd8d419295e1c5