[INFO] fetching crate apple-nvram 0.3.0...
[INFO] checking apple-nvram-0.3.0 against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] extracting crate apple-nvram 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate apple-nvram 0.3.0
[INFO] finished tweaking crates.io crate apple-nvram 0.3.0
[INFO] tweaked toml for crates.io crate apple-nvram 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate apple-nvram 0.3.0 on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding nix v0.26.4 (available: v0.30.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f7d8a3534c0e31b7e2db7e2b48af259b34e4eb9d90b8539e16435ac8afaac7e
[INFO] running `Command { std: "docker" "start" "-a" "3f7d8a3534c0e31b7e2db7e2b48af259b34e4eb9d90b8539e16435ac8afaac7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f7d8a3534c0e31b7e2db7e2b48af259b34e4eb9d90b8539e16435ac8afaac7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f7d8a3534c0e31b7e2db7e2b48af259b34e4eb9d90b8539e16435ac8afaac7e", kill_on_drop: false }`
[INFO] [stdout] 3f7d8a3534c0e31b7e2db7e2b48af259b34e4eb9d90b8539e16435ac8afaac7e
[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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738c4f1512313099d3d544d767662a7f217a9f88543b106c8ae8d547b124fedb
[INFO] running `Command { std: "docker" "start" "-a" "738c4f1512313099d3d544d767662a7f217a9f88543b106c8ae8d547b124fedb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking apple-nvram v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/v3.rs:78:56
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'_>> {
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 78 -     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'_>> {
[INFO] [stdout] 78 +     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'a>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/v3.rs:303:31
[INFO] [stdout]     |
[INFO] [stdout] 300 |         &'b mut self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 303 |     ) -> impl Iterator<Item = &mut Variable<'a>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ 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 `'b`
[INFO] [stdout]     |
[INFO] [stdout] 303 |     ) -> impl Iterator<Item = &'b mut Variable<'a>>
[INFO] [stdout]     |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/v3.rs:317:31
[INFO] [stdout]     |
[INFO] [stdout] 314 |         &'b mut self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 317 |     ) -> impl Iterator<Item = &mut Variable<'a>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ 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 `'b`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     ) -> impl Iterator<Item = &'b mut Variable<'a>>
[INFO] [stdout]     |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/v3.rs:78:56
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'_>> {
[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]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 78 -     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'_>> {
[INFO] [stdout] 78 +     pub fn parse(nvr: &'a [u8]) -> crate::Result<Nvram<'a>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/v3.rs:303:31
[INFO] [stdout]     |
[INFO] [stdout] 300 |         &'b mut self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 303 |     ) -> impl Iterator<Item = &mut Variable<'a>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ 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 `'b`
[INFO] [stdout]     |
[INFO] [stdout] 303 |     ) -> impl Iterator<Item = &'b mut Variable<'a>>
[INFO] [stdout]     |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/v3.rs:317:31
[INFO] [stdout]     |
[INFO] [stdout] 314 |         &'b mut self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 317 |     ) -> impl Iterator<Item = &mut Variable<'a>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^ 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 `'b`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     ) -> impl Iterator<Item = &'b mut Variable<'a>>
[INFO] [stdout]     |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.33s
[INFO] running `Command { std: "docker" "inspect" "738c4f1512313099d3d544d767662a7f217a9f88543b106c8ae8d547b124fedb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738c4f1512313099d3d544d767662a7f217a9f88543b106c8ae8d547b124fedb", kill_on_drop: false }`
[INFO] [stdout] 738c4f1512313099d3d544d767662a7f217a9f88543b106c8ae8d547b124fedb