[INFO] fetching crate monacoin 0.27.1-pre...
[INFO] checking monacoin-0.27.1-pre against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate monacoin 0.27.1-pre into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate monacoin 0.27.1-pre on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monacoin 0.27.1-pre
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate monacoin 0.27.1-pre
[INFO] tweaked toml for crates.io crate monacoin 0.27.1-pre written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate monacoin 0.27.1-pre already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac6b924201003e6e9ec8121d6ee24b69a2d0829f4d119bc79943b592c47c3601
[INFO] running `Command { std: "docker" "start" "-a" "ac6b924201003e6e9ec8121d6ee24b69a2d0829f4d119bc79943b592c47c3601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac6b924201003e6e9ec8121d6ee24b69a2d0829f4d119bc79943b592c47c3601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6b924201003e6e9ec8121d6ee24b69a2d0829f4d119bc79943b592c47c3601", kill_on_drop: false }`
[INFO] [stdout] ac6b924201003e6e9ec8121d6ee24b69a2d0829f4d119bc79943b592c47c3601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41dffca34cd4120aad6dd3cccc835d6b86ae9630cb833ab38ca80ee4e30f8446
[INFO] running `Command { std: "docker" "start" "-a" "41dffca34cd4120aad6dd3cccc835d6b86ae9630cb833ab38ca80ee4e30f8446", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling serde v1.0.134
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[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 block-buffer v0.7.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking groestl v0.9.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking threefish-cipher v0.4.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking blake-hash v0.4.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]    Compiling serde_test v1.0.134
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking scrypt v0.2.0
[INFO] [stderr]     Checking skein-hash v0.3.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]     Checking lyra2 v0.2.6
[INFO] [stderr]     Checking secp256k1 v0.20.3
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking monacoin v0.27.1-pre (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/util/bip158.rs:434:49
[INFO] [stdout]     |
[INFO] [stdout] 432 | impl<'a> BitStreamReader<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 433 |     /// Create a new BitStreamReader that reads bitwise from a given reader
[INFO] [stdout] 434 |     pub fn new(reader: &'a mut dyn io::Read) -> BitStreamReader {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/util/bip158.rs:472:50
[INFO] [stdout]     |
[INFO] [stdout] 470 | impl<'a> BitStreamWriter<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 471 |     /// Create a new BitStreamWriter that writes bitwise to a given writer
[INFO] [stdout] 472 |     pub fn new(writer: &'a mut dyn io::Write) -> BitStreamWriter {
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/util/bip158.rs:434:49
[INFO] [stdout]     |
[INFO] [stdout] 432 | impl<'a> BitStreamReader<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 433 |     /// Create a new BitStreamReader that reads bitwise from a given reader
[INFO] [stdout] 434 |     pub fn new(reader: &'a mut dyn io::Read) -> BitStreamReader {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/util/bip158.rs:472:50
[INFO] [stdout]     |
[INFO] [stdout] 470 | impl<'a> BitStreamWriter<'a> {
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] 471 |     /// Create a new BitStreamWriter that writes bitwise to a given writer
[INFO] [stdout] 472 |     pub fn new(writer: &'a mut dyn io::Write) -> BitStreamWriter {
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `work`
[INFO] [stdout]    --> src/blockdata/block.rs:381:13
[INFO] [stdout]     |
[INFO] [stdout] 381 |         let work = Uint256([0x100010001u64, 0, 0, 0]);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_work`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `work`
[INFO] [stdout]    --> src/blockdata/block.rs:419:13
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let work = Uint256([0x257c3becdacc64u64, 0, 0, 0]);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_work`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.78s
[INFO] running `Command { std: "docker" "inspect" "41dffca34cd4120aad6dd3cccc835d6b86ae9630cb833ab38ca80ee4e30f8446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41dffca34cd4120aad6dd3cccc835d6b86ae9630cb833ab38ca80ee4e30f8446", kill_on_drop: false }`
[INFO] [stdout] 41dffca34cd4120aad6dd3cccc835d6b86ae9630cb833ab38ca80ee4e30f8446