[INFO] fetching crate mhash 0.3.0...
[INFO] testing mhash-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mhash 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate mhash 0.3.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcc8a5d205acf4a00c7f7bcc1cfe80b4148b641c1325ddfbc1098c7591c94473
[INFO] running `Command { std: "docker" "start" "-a" "dcc8a5d205acf4a00c7f7bcc1cfe80b4148b641c1325ddfbc1098c7591c94473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcc8a5d205acf4a00c7f7bcc1cfe80b4148b641c1325ddfbc1098c7591c94473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc8a5d205acf4a00c7f7bcc1cfe80b4148b641c1325ddfbc1098c7591c94473", kill_on_drop: false }`
[INFO] [stdout] dcc8a5d205acf4a00c7f7bcc1cfe80b4148b641c1325ddfbc1098c7591c94473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c6729a0683a2a31d74ba3277586ca74fc91878a8431d18ee3e3134da2339ff6
[INFO] running `Command { std: "docker" "start" "-a" "8c6729a0683a2a31d74ba3277586ca74fc91878a8431d18ee3e3134da2339ff6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling varmint v0.1.3
[INFO] [stderr]    Compiling bs58 v0.2.5
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling 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: `...` 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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 the macro `error_chain` (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:60:27
[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 the macro `error_chain` (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 the macro `error_chain` (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 the macro `error_chain` (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: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `Command { std: "docker" "inspect" "8c6729a0683a2a31d74ba3277586ca74fc91878a8431d18ee3e3134da2339ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c6729a0683a2a31d74ba3277586ca74fc91878a8431d18ee3e3134da2339ff6", kill_on_drop: false }`
[INFO] [stdout] 8c6729a0683a2a31d74ba3277586ca74fc91878a8431d18ee3e3134da2339ff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dcde4b536850169c6a7547520df8f624cf9296f263adbb95ef1fe499b8ae419
[INFO] running `Command { std: "docker" "start" "-a" "9dcde4b536850169c6a7547520df8f624cf9296f263adbb95ef1fe499b8ae419", kill_on_drop: false }`
[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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mhash v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `bs58::decode::DecodeError`: Use `bs58::decode::Error` instead
[INFO] [stdout]   --> src/error.rs:60:27
[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 the macro `error_chain` (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 the macro `error_chain` (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 the macro `error_chain` (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: 10 warnings emitted
[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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 the macro `error_chain` (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:60:27
[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 the macro `error_chain` (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 the macro `error_chain` (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 the macro `error_chain` (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: 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 test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mhash-d48e426b489f490b)
[INFO] running `Command { std: "docker" "inspect" "9dcde4b536850169c6a7547520df8f624cf9296f263adbb95ef1fe499b8ae419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dcde4b536850169c6a7547520df8f624cf9296f263adbb95ef1fe499b8ae419", kill_on_drop: false }`
[INFO] [stdout] 9dcde4b536850169c6a7547520df8f624cf9296f263adbb95ef1fe499b8ae419
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 119c90e397493308d667bb10e235839891d24fc745d866ba11d0aea112b89dc8
[INFO] running `Command { std: "docker" "start" "-a" "119c90e397493308d667bb10e235839891d24fc745d866ba11d0aea112b89dc8", kill_on_drop: false }`
[INFO] [stderr] warning: lint `fat_ptr_transmutes` has been removed: was accidentally removed back in 2014
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(fat_ptr_transmutes)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `redundant_closure`
[INFO] [stderr]  --> src/error.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(redundant_closure)] // Caused by error_chain!
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `len_without_is_empty`
[INFO] [stderr]   --> src/multihash.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[allow(len_without_is_empty)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/variant.rs:88:20
[INFO] [stderr]    |
[INFO] [stderr] 88 |             0x0400 ... 0x040f => ApplicationSpecific { code: code },
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | /     error_chain! {
[INFO] [stderr] 30 | |         links {
[INFO] [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stderr] 32 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 45 | |         }
[INFO] [stderr] 46 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated type alias `bs58::decode::DecodeError`: Use `bs58::decode::Error` instead
[INFO] [stderr]   --> src/error.rs:60:27
[INFO] [stderr]    |
[INFO] [stderr] 60 |             bs58::decode::DecodeError, Base58;
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     error_chain! {
[INFO] [stderr] 55 | |         links {
[INFO] [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stderr] 57 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |         }
[INFO] [stderr] 62 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | /     error_chain! {
[INFO] [stderr] 30 | |         links {
[INFO] [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
[INFO] [stderr] 32 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 45 | |         }
[INFO] [stderr] 46 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     error_chain! {
[INFO] [stderr] 55 | |         links {
[INFO] [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
[INFO] [stderr] 57 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |         }
[INFO] [stderr] 62 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/multihash_vec.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |             let mut writer = &mut bytes;
[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: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]   --> src/read.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         buffer.read_multihash().is_err();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]   --> src/read.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |         buffer.read_multihash().is_err();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]   --> src/read.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         buffer.read_multihash().is_err();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/read.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         buffer.read_multihash().is_err();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_err` that must be used
[INFO] [stderr]    --> src/read.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         buffer.read_multihash().is_err();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is err, consider `.unwrap_err()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `mhash` (lib) generated 10 warnings
[INFO] [stderr] warning: `mhash` (lib test) generated 15 warnings (10 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mhash-d48e426b489f490b)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test read::tests::no_code ... ok
[INFO] [stdout] test multihash_vec::tests::from_bytes ... ok
[INFO] [stdout] test multihash_vec::tests::to_bytes_with_varint ... ok
[INFO] [stdout] test read::tests::valid ... ok
[INFO] [stdout] test read::tests::valid_varint ... ok
[INFO] [stdout] test write::tests::varint ... ok
[INFO] [stdout] test multihash_vec::tests::from_bytes_with_varint ... ok
[INFO] [stdout] test multihash_vec::tests::to_bytes ... ok
[INFO] [stdout] test write::tests::valid ... ok
[INFO] [stdout] test read::tests::short_digest ... ok
[INFO] [stdout] test read::tests::no_len ... ok
[INFO] [stdout] test read::tests::bad_code ... ok
[INFO] [stdout] test read::tests::long_digest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mhash
[INFO] [stderr] warning: lint `fat_ptr_transmutes` has been removed: was accidentally removed back in 2014
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(fat_ptr_transmutes)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `redundant_closure`
[INFO] [stderr]  --> /opt/rustwide/workdir/src/error.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(redundant_closure)] // Caused by error_chain!
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `len_without_is_empty`
[INFO] [stderr]   --> /opt/rustwide/workdir/src/multihash.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[allow(len_without_is_empty)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> /opt/rustwide/workdir/src/variant.rs:88:20
[INFO] [stderr]    |
[INFO] [stderr] 88 |             0x0400 ... 0x040f => ApplicationSpecific { code: code },
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/read.rs - read::ReadMultiHash::read_multihash (line 27) ... ok
[INFO] [stdout] test src/write.rs - write::WriteMultiHash::write_multihash (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "119c90e397493308d667bb10e235839891d24fc745d866ba11d0aea112b89dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "119c90e397493308d667bb10e235839891d24fc745d866ba11d0aea112b89dc8", kill_on_drop: false }`
[INFO] [stdout] 119c90e397493308d667bb10e235839891d24fc745d866ba11d0aea112b89dc8