[INFO] fetching crate mhash 0.3.0...
[INFO] checking mhash-0.3.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate mhash 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mhash 0.3.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mhash 0.3.0
[INFO] finished tweaking crates.io crate mhash 0.3.0
[INFO] tweaked toml for crates.io crate mhash 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded sodiumoxide v0.0.10
[INFO] [stderr]   Downloaded libsodium-sys v0.0.10
[INFO] [stderr]   Downloaded varmint v0.1.3
[INFO] [stderr]   Downloaded bs58 v0.2.5
[INFO] running `Command { std: "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" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd8838b70cfc4182d398f002ede8a76c7fd07cb0002feff20eb8a3e01f03d026
[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" "fd8838b70cfc4182d398f002ede8a76c7fd07cb0002feff20eb8a3e01f03d026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd8838b70cfc4182d398f002ede8a76c7fd07cb0002feff20eb8a3e01f03d026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd8838b70cfc4182d398f002ede8a76c7fd07cb0002feff20eb8a3e01f03d026", kill_on_drop: false }`
[INFO] [stdout] fd8838b70cfc4182d398f002ede8a76c7fd07cb0002feff20eb8a3e01f03d026
[INFO] running `Command { std: "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" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9c2aff06817c5c7c5510368225c6e1907f4b8158bdaad8dca26279a8d2783c2
[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" "c9c2aff06817c5c7c5510368225c6e1907f4b8158bdaad8dca26279a8d2783c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]     Checking varmint v0.1.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking error-chain v0.5.0
[INFO] [stderr]     Checking mhash v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![warn(fat_ptr_transmutes)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `redundant_closure`
[INFO] [stdout]  --> src/error.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![allow(redundant_closure)] // Caused by error_chain!
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `len_without_is_empty`
[INFO] [stdout]   --> src/multihash.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[allow(len_without_is_empty)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![warn(fat_ptr_transmutes)]
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `redundant_closure`
[INFO] [stdout]  --> src/error.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![allow(redundant_closure)] // Caused by error_chain!
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `len_without_is_empty`
[INFO] [stdout]   --> src/multihash.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[allow(len_without_is_empty)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/variant.rs:88:20
[INFO] [stdout]    |
[INFO] [stdout] 88 |             0x0400 ... 0x040f => ApplicationSpecific { code: code },
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/variant.rs:88:20
[INFO] [stdout]    |
[INFO] [stdout] 88 |             0x0400 ... 0x040f => ApplicationSpecific { code: code },
[INFO] [stdout]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     error_chain! {
[INFO] [stdout] 30 | |         links {
[INFO] [stdout] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stdout] 32 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         }
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bs58::decode::DecodeError`: Use `bs58::decode::Error` instead
[INFO] [stdout]   --> src/error.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             bs58::decode::DecodeError, Base58;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     error_chain! {
[INFO] [stdout] 55 | |         links {
[INFO] [stdout] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stdout] 57 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | |         }
[INFO] [stdout] 62 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     error_chain! {
[INFO] [stdout] 30 | |         links {
[INFO] [stdout] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stdout] 32 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         }
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `bs58::decode::DecodeError`: Use `bs58::decode::Error` instead
[INFO] [stdout]   --> src/error.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             bs58::decode::DecodeError, Base58;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     error_chain! {
[INFO] [stdout] 55 | |         links {
[INFO] [stdout] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stdout] 57 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | |         }
[INFO] [stdout] 62 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     error_chain! {
[INFO] [stdout] 30 | |         links {
[INFO] [stdout] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stdout] 32 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         }
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     error_chain! {
[INFO] [stdout] 55 | |         links {
[INFO] [stdout] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stdout] 57 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | |         }
[INFO] [stdout] 62 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     error_chain! {
[INFO] [stdout] 30 | |         links {
[INFO] [stdout] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stdout] 32 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |         }
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     error_chain! {
[INFO] [stdout] 55 | |         links {
[INFO] [stdout] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stdout] 57 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | |         }
[INFO] [stdout] 62 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/multihash_vec.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut writer = &mut bytes;
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/multihash_vec.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut writer = &mut bytes;
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stdout]   --> src/read.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         buffer.read_multihash().is_err();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stdout]   --> src/read.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         buffer.read_multihash().is_err();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stdout]   --> src/read.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         buffer.read_multihash().is_err();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stdout]    --> src/read.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         buffer.read_multihash().is_err();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stdout]    --> src/read.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         buffer.read_multihash().is_err();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "c9c2aff06817c5c7c5510368225c6e1907f4b8158bdaad8dca26279a8d2783c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c2aff06817c5c7c5510368225c6e1907f4b8158bdaad8dca26279a8d2783c2", kill_on_drop: false }`
[INFO] [stdout] c9c2aff06817c5c7c5510368225c6e1907f4b8158bdaad8dca26279a8d2783c2