[INFO] crate rusty-variation 0.1.0 is already in cache
[INFO] checking rusty-variation-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate rusty-variation 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rusty-variation 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rusty-variation 0.1.0
[INFO] finished tweaking crates.io crate rusty-variation 0.1.0
[INFO] tweaked toml for crates.io crate rusty-variation 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 67adbf18f4d8c4450301c0a96865fb4984b36f9f6cbcb213dec1965b6df9e506
[INFO] running `"docker" "start" "-a" "67adbf18f4d8c4450301c0a96865fb4984b36f9f6cbcb213dec1965b6df9e506"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rusty-variation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:65:73
[INFO] [stderr]    |
[INFO] [stderr] 65 | ...                   -> Result<S, Box<Error + 'a>> {
[INFO] [stderr]    |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:72:71
[INFO] [stderr]    |
[INFO] [stderr] 72 | ...                   -> Result<(T, S), Box<Error + 'a>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:77:40
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn close(s: End) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:42
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn cancel<T>(x: T) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:140:36
[INFO] [stderr]     |
[INFO] [stderr] 140 |     F: FnOnce(S1) -> Result<R, Box<Error + 'a>>,
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:141:36
[INFO] [stderr]     |
[INFO] [stderr] 141 |     G: FnOnce(S2) -> Result<R, Box<Error + 'a>>,
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:138:77
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   -> Result<R, Box<Error + 'a>>
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:148:78
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   -> Result<S1, Box<Error + 'a>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:155:79
[INFO] [stderr]     |
[INFO] [stderr] 155 | ...                   -> Result<S2, Box<Error + 'a>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: use `dyn`: `dyn Error + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.5.6/src/distributions/poisson.rs:96:30
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 int_result = result as u64;
[INFO] [stderr]    |                              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.5.6/src/distributions/binomial.rs:125:22
[INFO] [stderr]     |
[INFO] [stderr] 125 |             self.n - lresult as u64
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.5.6/src/distributions/binomial.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             lresult as u64
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u64` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.5.6/src/distributions/bernoulli.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             (p * MAX_P_INT) as u64
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `rand`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "67adbf18f4d8c4450301c0a96865fb4984b36f9f6cbcb213dec1965b6df9e506"`
[INFO] running `"docker" "rm" "-f" "67adbf18f4d8c4450301c0a96865fb4984b36f9f6cbcb213dec1965b6df9e506"`
[INFO] [stdout] 67adbf18f4d8c4450301c0a96865fb4984b36f9f6cbcb213dec1965b6df9e506