[INFO] crate microsalt 0.2.21 is already in cache
[INFO] extracting crate microsalt 0.2.21 into work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/microsalt/0.2.21
[INFO] extracting crate microsalt 0.2.21 into work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/microsalt/0.2.21
[INFO] validating manifest of microsalt-0.2.21 on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of microsalt-0.2.21 on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing microsalt-0.2.21
[INFO] finished frobbing microsalt-0.2.21
[INFO] frobbed toml for microsalt-0.2.21 written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/microsalt/0.2.21/Cargo.toml
[INFO] started frobbing microsalt-0.2.21
[INFO] finished frobbing microsalt-0.2.21
[INFO] frobbed toml for microsalt-0.2.21 written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/microsalt/0.2.21/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking microsalt-0.2.21 against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-4/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/microsalt/0.2.21:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 42c2c1f5c678dbf27148572a5dd37b014739eef56ce761f3340f5b1d2b5e2bc2
[INFO] running `"docker" "start" "-a" "42c2c1f5c678dbf27148572a5dd37b014739eef56ce761f3340f5b1d2b5e2bc2"`
[INFO] [stderr]     Checking index-fixed v0.0.2
[INFO] [stderr]     Checking microsalt v0.2.21 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Hash`, `Hasher`
[INFO] [stderr]  --> src/hash/mod.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cmp`
[INFO] [stderr]    --> src/shared.rs:202:11
[INFO] [stderr]     |
[INFO] [stderr] 202 | use std::{cmp, mem};
[INFO] [stderr]     |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shared`
[INFO] [stderr]  --> src/boxy/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use shared;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Hash`, `Hasher`
[INFO] [stderr]  --> src/hash/mod.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                 ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cmp`
[INFO] [stderr]    --> src/shared.rs:202:11
[INFO] [stderr]     |
[INFO] [stderr] 202 | use std::{cmp, mem};
[INFO] [stderr]     |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shared`
[INFO] [stderr]  --> src/sign/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use shared;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shared`
[INFO] [stderr]   --> src/secretbox/mod.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | use shared;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shared`
[INFO] [stderr]  --> src/boxy/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use shared;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/sha512.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |     let mut x = &mut x[..new_len];
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/sha512.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |     let mut x = &mut x[..new_len];
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sign/ed25519.rs:396:16
[INFO] [stderr]     |
[INFO] [stderr] 396 |     let (init, mut rest) = r.split_at_mut(3);
[INFO] [stderr]     |                ----^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/sign/ed25519.rs:396:16
[INFO] [stderr]     |
[INFO] [stderr] 396 |     let (init, mut rest) = r.split_at_mut(3);
[INFO] [stderr]     |                ----^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SIGN_BYTES`
[INFO] [stderr]   --> src/sign/ed25519.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const SIGN_BYTES: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_data_test_helper`
[INFO] [stderr]    --> src/shared.rs:150:1
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub fn random_data_test_helper(len: usize) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SIGN_BYTES`
[INFO] [stderr]   --> src/sign/ed25519.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const SIGN_BYTES: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/secretbox/mod.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     xsalsa20poly1305::secretbox(&mut cipher, &m, &nonce, &key.0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/boxy/mod.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         curve25519xsalsa20poly1305::box_(&mut cipher, &m, &nonce, &pk.0, &sk.0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/secretbox/mod.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     xsalsa20poly1305::secretbox(&mut cipher, &m, &nonce, &key.0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/boxy/mod.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         curve25519xsalsa20poly1305::box_(&mut cipher, &m, &nonce, &pk.0, &sk.0);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "42c2c1f5c678dbf27148572a5dd37b014739eef56ce761f3340f5b1d2b5e2bc2"`
[INFO] running `"docker" "rm" "-f" "42c2c1f5c678dbf27148572a5dd37b014739eef56ce761f3340f5b1d2b5e2bc2"`
[INFO] [stdout] 42c2c1f5c678dbf27148572a5dd37b014739eef56ce761f3340f5b1d2b5e2bc2