[INFO] fetching crate grin_core 5.3.3...
[INFO] building grin_core-5.3.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate grin_core 5.3.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate grin_core 5.3.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate grin_core 5.3.3
[INFO] tweaked toml for crates.io crate grin_core 5.3.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grin_core 5.3.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 174 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.10.1)
[INFO] [stderr]       Adding croaring v1.1.0 (available: v2.4.0)
[INFO] [stderr]       Adding num v0.2.1 (available: v0.4.3)
[INFO] [stderr]       Adding num-bigint v0.2.6 (available: v0.4.6)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.9.2)
[INFO] [stderr]       Adding siphasher v0.3.11 (available: v1.0.1)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 801022a9a5cacd8ee0f8e119221679d7803ddec7547ac2c7c8e7df04f6b4af06
[INFO] running `Command { std: "docker" "start" "-a" "801022a9a5cacd8ee0f8e119221679d7803ddec7547ac2c7c8e7df04f6b4af06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "801022a9a5cacd8ee0f8e119221679d7803ddec7547ac2c7c8e7df04f6b4af06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801022a9a5cacd8ee0f8e119221679d7803ddec7547ac2c7c8e7df04f6b4af06", kill_on_drop: false }`
[INFO] [stdout] 801022a9a5cacd8ee0f8e119221679d7803ddec7547ac2c7c8e7df04f6b4af06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9b6c7620be8f8f57ee2e6c294aa72d12684d66abdf450fd1b3d636dccbfbf9f
[INFO] running `Command { std: "docker" "start" "-a" "c9b6c7620be8f8f57ee2e6c294aa72d12684d66abdf450fd1b3d636dccbfbf9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling destructure_traitobject v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling grin_secp256k1zkp v0.7.14
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling parking_lot_core v0.7.3
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling croaring-sys v2.1.0
[INFO] [stderr]    Compiling unsafe-any-ors v1.0.0
[INFO] [stderr]    Compiling thread-id v5.0.0
[INFO] [stderr]    Compiling typemap-ors v1.0.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling base64ct v1.8.0
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling mock_instant v0.6.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling password-hash v0.2.3
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling ripemd160 v0.9.1
[INFO] [stderr]    Compiling pbkdf2 v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling croaring v1.1.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling log4rs v1.4.0
[INFO] [stderr]    Compiling grin_util v5.3.3
[INFO] [stderr]    Compiling grin_keychain v5.3.3
[INFO] [stderr]    Compiling grin_core v5.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/pow/common.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Edge {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:43:47
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                          --                      ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 43 +     pub fn new(backend: &'a B) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:53:61
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here          ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 53 -     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 53 +     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                          --                    ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 44 +     pub fn new(backend: &'a B) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:54:55
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here    ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 54 +     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:191:41
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                          --                ^^ the same lifetime is elided here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout] 191 +     pub fn new(backend: &'a mut B) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:201:51
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                         --                           ^^ the same lifetime is elided here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 201 -     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout] 201 +     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.22s
[INFO] running `Command { std: "docker" "inspect" "c9b6c7620be8f8f57ee2e6c294aa72d12684d66abdf450fd1b3d636dccbfbf9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b6c7620be8f8f57ee2e6c294aa72d12684d66abdf450fd1b3d636dccbfbf9f", kill_on_drop: false }`
[INFO] [stdout] c9b6c7620be8f8f57ee2e6c294aa72d12684d66abdf450fd1b3d636dccbfbf9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df15687c83392591f8d1c0a2578859b87723c94fe57baa4b26f177f7793fdd1b
[INFO] running `Command { std: "docker" "start" "-a" "df15687c83392591f8d1c0a2578859b87723c94fe57baa4b26f177f7793fdd1b", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/pow/common.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Edge {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:43:47
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                          --                      ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 43 +     pub fn new(backend: &'a B) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:53:61
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here          ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 53 -     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 53 +     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                          --                    ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 44 +     pub fn new(backend: &'a B) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:54:55
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here    ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 54 +     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling grin_core v5.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:191:41
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                          --                ^^ the same lifetime is elided here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout] 191 +     pub fn new(backend: &'a mut B) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:201:51
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                         --                           ^^ the same lifetime is elided here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 201 -     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout] 201 +     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestElem` is never constructed
[INFO] [stdout]    --> tests/common.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct TestElem(pub [u32; 4]);
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:191:41
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                          --                ^^ the same lifetime is elided here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn new(backend: &'a mut B) -> PMMR<'_, T, B> {
[INFO] [stdout] 191 +     pub fn new(backend: &'a mut B) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/core/pmmr/pmmr.rs:201:51
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout]     |                         --                           ^^ the same lifetime is elided here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 201 -     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'_, T, B> {
[INFO] [stdout] 201 +     pub fn at(backend: &'a mut B, size: u64) -> PMMR<'a, T, B> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/pow/common.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Edge {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                          --                    ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 44 -     pub fn new(backend: &'a B) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 44 +     pub fn new(backend: &'a B) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/readonly_pmmr.rs:54:55
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here    ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 54 -     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'_, T, B> {
[INFO] [stdout] 54 +     pub fn at(backend: &'a B, size: u64) -> ReadonlyPMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:43:47
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                          --                      ^^ the same lifetime is elided here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn new(backend: &'a B) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 43 +     pub fn new(backend: &'a B) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/core/pmmr/rewindable_pmmr.rs:53:61
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout]    |                         -- the lifetime is named here          ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 53 -     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'_, T, B> {
[INFO] [stdout] 53 +     pub fn at(backend: &'a B, last_pos: u64) -> RewindablePMMR<'a, T, B> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "df15687c83392591f8d1c0a2578859b87723c94fe57baa4b26f177f7793fdd1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df15687c83392591f8d1c0a2578859b87723c94fe57baa4b26f177f7793fdd1b", kill_on_drop: false }`
[INFO] [stdout] df15687c83392591f8d1c0a2578859b87723c94fe57baa4b26f177f7793fdd1b
