[INFO] crate fixedvec 0.2.3 is already in cache
[INFO] extracting crate fixedvec 0.2.3 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fixedvec/0.2.3
[INFO] extracting crate fixedvec 0.2.3 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/fixedvec/0.2.3
[INFO] validating manifest of fixedvec-0.2.3 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fixedvec-0.2.3 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fixedvec-0.2.3
[INFO] finished frobbing fixedvec-0.2.3
[INFO] frobbed toml for fixedvec-0.2.3 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fixedvec/0.2.3/Cargo.toml
[INFO] started frobbing fixedvec-0.2.3
[INFO] finished frobbing fixedvec-0.2.3
[INFO] frobbed toml for fixedvec-0.2.3 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/fixedvec/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building fixedvec-0.2.3 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fixedvec/0.2.3:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 4541fb621275e70f023b96e420d877fb65134f9d1fabada968ff4c0f0f589086
[INFO] running `"docker" "start" "-a" "4541fb621275e70f023b96e420d877fb65134f9d1fabada968ff4c0f0f589086"`
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling fixedvec v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:627:14
[INFO] [stderr]     |
[INFO] [stderr] 627 |         let (mut slice, _) = self.memory.split_at_mut(self.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/lib.rs:891:18
[INFO] [stderr]     |
[INFO] [stderr] 891 |     fn into_iter(mut self) -> IterMut<'a, T> {
[INFO] [stderr]     |                  ----^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `"docker" "inspect" "4541fb621275e70f023b96e420d877fb65134f9d1fabada968ff4c0f0f589086"`
[INFO] running `"docker" "rm" "-f" "4541fb621275e70f023b96e420d877fb65134f9d1fabada968ff4c0f0f589086"`
[INFO] [stdout] 4541fb621275e70f023b96e420d877fb65134f9d1fabada968ff4c0f0f589086
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/fixedvec/0.2.3:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0767a3225cc1f218fcf6eb7f8ca774bacd1192111bc342f3b54f54ad16007bd7
[INFO] running `"docker" "start" "-a" "0767a3225cc1f218fcf6eb7f8ca774bacd1192111bc342f3b54f54ad16007bd7"`
[INFO] [stderr]    Compiling fixedvec v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]    --> src/lib.rs:960:27
[INFO] [stderr]     |
[INFO] [stderr] 960 |     use std::hash::{Hash, SipHasher};
[INFO] [stderr]     |                           ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]     --> src/lib.rs:1032:27
[INFO] [stderr]      |
[INFO] [stderr] 1032 |         let mut hasher1 = SipHasher::new();
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]     --> src/lib.rs:1036:27
[INFO] [stderr]      |
[INFO] [stderr] 1036 |         let mut hasher2 = SipHasher::new();
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::hash::SipHasher::new': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]     --> src/lib.rs:1032:27
[INFO] [stderr]      |
[INFO] [stderr] 1032 |         let mut hasher1 = SipHasher::new();
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::hash::SipHasher::new': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]     --> src/lib.rs:1036:27
[INFO] [stderr]      |
[INFO] [stderr] 1036 |         let mut hasher2 = SipHasher::new();
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:627:14
[INFO] [stderr]     |
[INFO] [stderr] 627 |         let (mut slice, _) = self.memory.split_at_mut(self.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/lib.rs:891:18
[INFO] [stderr]     |
[INFO] [stderr] 891 |     fn into_iter(mut self) -> IterMut<'a, T> {
[INFO] [stderr]     |                  ----^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "0767a3225cc1f218fcf6eb7f8ca774bacd1192111bc342f3b54f54ad16007bd7"`
[INFO] running `"docker" "rm" "-f" "0767a3225cc1f218fcf6eb7f8ca774bacd1192111bc342f3b54f54ad16007bd7"`
[INFO] [stdout] 0767a3225cc1f218fcf6eb7f8ca774bacd1192111bc342f3b54f54ad16007bd7