[INFO] fetching crate sssmc39 0.0.3...
[INFO] checking sssmc39-0.0.3 against beta for pr-78714
[INFO] extracting crate sssmc39 0.0.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sssmc39 0.0.3 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 sssmc39 0.0.3
[INFO] finished tweaking crates.io crate sssmc39 0.0.3
[INFO] tweaked toml for crates.io crate sssmc39 0.0.3 written to /workspace/builds/worker-3/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 981061c732aedd992bb574070ab9ba6e7b26eb3d45b37104d28abf87ce5eaa20
[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" "981061c732aedd992bb574070ab9ba6e7b26eb3d45b37104d28abf87ce5eaa20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "981061c732aedd992bb574070ab9ba6e7b26eb3d45b37104d28abf87ce5eaa20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981061c732aedd992bb574070ab9ba6e7b26eb3d45b37104d28abf87ce5eaa20", kill_on_drop: false }`
[INFO] [stdout] 981061c732aedd992bb574070ab9ba6e7b26eb3d45b37104d28abf87ce5eaa20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad24907bab3fdb9779c479f88b9102ec81fc9b7fb41f11f92d1311a0ff38d2ba
[INFO] running `Command { std: "docker" "start" "-a" "ad24907bab3fdb9779c479f88b9102ec81fc9b7fb41f11f92d1311a0ff38d2ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking sssmc39 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/field/gf256.rs:119:34
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub static ref TABLES: Tables = { Tables::generate() };
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/shamir/share.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub static ref WORDLIST: Vec<String> = { include_str!("wordlists/en.txt").split_whitespace().map(|s| s.into()).collect() };
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T>::split_off` that must be used
[INFO] [stdout]    --> src/shamir/splitter.rs:232:3
[INFO] [stdout]     |
[INFO] [stdout] 232 |         ret_vec.split_off(4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/field/gf256.rs:119:34
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub static ref TABLES: Tables = { Tables::generate() };
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/shamir/share.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub static ref WORDLIST: Vec<String> = { include_str!("wordlists/en.txt").split_whitespace().map(|s| s.into()).collect() };
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T>::split_off` that must be used
[INFO] [stdout]    --> src/shamir/splitter.rs:232:3
[INFO] [stdout]     |
[INFO] [stdout] 232 |         ret_vec.split_off(4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.32s
[INFO] running `Command { std: "docker" "inspect" "ad24907bab3fdb9779c479f88b9102ec81fc9b7fb41f11f92d1311a0ff38d2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad24907bab3fdb9779c479f88b9102ec81fc9b7fb41f11f92d1311a0ff38d2ba", kill_on_drop: false }`
[INFO] [stdout] ad24907bab3fdb9779c479f88b9102ec81fc9b7fb41f11f92d1311a0ff38d2ba