[INFO] fetching crate pylauncher 0.1.1...
[INFO] checking pylauncher-0.1.1 against beta for pr-78714
[INFO] extracting crate pylauncher 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate pylauncher 0.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pylauncher 0.1.1
[INFO] finished tweaking crates.io crate pylauncher 0.1.1
[INFO] tweaked toml for crates.io crate pylauncher 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a93afeca9a8469b36927b25b679172bfcdd4c44981dd3884579153e21827f40
[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" "1a93afeca9a8469b36927b25b679172bfcdd4c44981dd3884579153e21827f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a93afeca9a8469b36927b25b679172bfcdd4c44981dd3884579153e21827f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a93afeca9a8469b36927b25b679172bfcdd4c44981dd3884579153e21827f40", kill_on_drop: false }`
[INFO] [stdout] 1a93afeca9a8469b36927b25b679172bfcdd4c44981dd3884579153e21827f40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fdfcb51dcbad502f82f582fc4554f4f64718d3053a939a27b364dd3078576c6
[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" "1fdfcb51dcbad502f82f582fc4554f4f64718d3053a939a27b364dd3078576c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbg v1.0.4
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking pylauncher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/specs.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     bytes: &mut Iterator<Item = &'a u8>) -> SpecPart<T> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/specs.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             b'0'...b'9' => {
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/specs.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     bytes: &mut Iterator<Item = &'a u8>) -> SpecPart<T> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/specs.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             b'0'...b'9' => {
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/specs.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 let mut n = number;
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/specs.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 let mut n = number;
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "1fdfcb51dcbad502f82f582fc4554f4f64718d3053a939a27b364dd3078576c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fdfcb51dcbad502f82f582fc4554f4f64718d3053a939a27b364dd3078576c6", kill_on_drop: false }`
[INFO] [stdout] 1fdfcb51dcbad502f82f582fc4554f4f64718d3053a939a27b364dd3078576c6