[INFO] fetching crate containers 0.9.8...
[INFO] checking containers-0.9.8 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate containers 0.9.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate containers 0.9.8 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate containers 0.9.8
[INFO] finished tweaking crates.io crate containers 0.9.8
[INFO] tweaked toml for crates.io crate containers 0.9.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fallible v0.1.3
[INFO] [stderr]   Downloaded ptr v0.2.2
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded loca v0.7.2
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded hash-table v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be7816143bcb9d49ed24d4c1f1fa574b13716ed820939ca46fe2e2e3d88d7e5d
[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" "be7816143bcb9d49ed24d4c1f1fa574b13716ed820939ca46fe2e2e3d88d7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be7816143bcb9d49ed24d4c1f1fa574b13716ed820939ca46fe2e2e3d88d7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7816143bcb9d49ed24d4c1f1fa574b13716ed820939ca46fe2e2e3d88d7e5d", kill_on_drop: false }`
[INFO] [stdout] be7816143bcb9d49ed24d4c1f1fa574b13716ed820939ca46fe2e2e3d88d7e5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8503a004c983e1837eecff1ad5de3d4abef9e07ab2b44b44a6ce90e4867d8e1
[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" "d8503a004c983e1837eecff1ad5de3d4abef9e07ab2b44b44a6ce90e4867d8e1", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ptr v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling hash-table v0.2.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling containers v0.9.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking heap v0.1.0
[INFO] [stderr]     Checking rel v0.2.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking fallible v0.1.3
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking loca v0.7.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking default_allocator v0.3.0
[INFO] [stdout] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/collections/b_tree.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     φ: PhantomData<(K, T)>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout]    = note: The usage includes 'φ' (U+03C6).
[INFO] [stdout]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/rc.rs:75:38
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if old_size > MAX_REFCOUNT { unsafe { ::core::intrinsics::abort() } }
[INFO] [stdout]    |                                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/sync.rs:80:90
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if self.inner().strong.fetch_add(1, Memord::Relaxed) > ::core::isize::MAX as _ { unsafe { ::core::intrinsics::abort() } }
[INFO] [stdout]    |                                                                                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dead_flag` should have an upper case name
[INFO] [stdout]    --> src/collections/hash_table.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | const dead_flag: usize = !(!0>>1);
[INFO] [stdout]     |       ^^^^^^^^^ help: convert the identifier to upper case: `DEAD_FLAG`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `hash_flag` should have an upper case name
[INFO] [stdout]    --> src/collections/hash_table.rs:184:7
[INFO] [stdout]     |
[INFO] [stdout] 184 | const hash_flag: usize = dead_flag>>1;
[INFO] [stdout]     |       ^^^^^^^^^ help: convert the identifier to upper case: `HASH_FLAG`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `empty` should have an upper case name
[INFO] [stdout]    --> src/collections/raw_vec.rs:118:15
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub const empty: Self = RawVec { ptr: Unique::empty(), cap: 0,
[INFO] [stdout]     |               ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stdout] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/collections/b_tree.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     φ: PhantomData<(K, T)>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout]    = note: The usage includes 'φ' (U+03C6).
[INFO] [stdout]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/rc.rs:75:38
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if old_size > MAX_REFCOUNT { unsafe { ::core::intrinsics::abort() } }
[INFO] [stdout]    |                                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/sync.rs:80:90
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if self.inner().strong.fetch_add(1, Memord::Relaxed) > ::core::isize::MAX as _ { unsafe { ::core::intrinsics::abort() } }
[INFO] [stdout]    |                                                                                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dead_flag` should have an upper case name
[INFO] [stdout]    --> src/collections/hash_table.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | const dead_flag: usize = !(!0>>1);
[INFO] [stdout]     |       ^^^^^^^^^ help: convert the identifier to upper case: `DEAD_FLAG`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `hash_flag` should have an upper case name
[INFO] [stdout]    --> src/collections/hash_table.rs:184:7
[INFO] [stdout]     |
[INFO] [stdout] 184 | const hash_flag: usize = dead_flag>>1;
[INFO] [stdout]     |       ^^^^^^^^^ help: convert the identifier to upper case: `HASH_FLAG`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `empty` should have an upper case name
[INFO] [stdout]    --> src/collections/raw_vec.rs:118:15
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub const empty: Self = RawVec { ptr: Unique::empty(), cap: 0,
[INFO] [stdout]     |               ^^^^^ help: convert the identifier to upper case: `EMPTY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.14s
[INFO] running `Command { std: "docker" "inspect" "d8503a004c983e1837eecff1ad5de3d4abef9e07ab2b44b44a6ce90e4867d8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8503a004c983e1837eecff1ad5de3d4abef9e07ab2b44b44a6ce90e4867d8e1", kill_on_drop: false }`
[INFO] [stdout] d8503a004c983e1837eecff1ad5de3d4abef9e07ab2b44b44a6ce90e4867d8e1