[INFO] fetching crate merkle_light 0.4.0...
[INFO] testing merkle_light-0.4.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate merkle_light 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate merkle_light 0.4.0
[INFO] finished tweaking crates.io crate merkle_light 0.4.0
[INFO] tweaked toml for crates.io crate merkle_light 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merkle_light 0.4.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate merkle_light 0.4.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46f9484b187f603b286c4ec1a03ef17e4b648c1e246ecd01d25d43384003127e
[INFO] running `Command { std: "docker" "start" "-a" "46f9484b187f603b286c4ec1a03ef17e4b648c1e246ecd01d25d43384003127e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46f9484b187f603b286c4ec1a03ef17e4b648c1e246ecd01d25d43384003127e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f9484b187f603b286c4ec1a03ef17e4b648c1e246ecd01d25d43384003127e", kill_on_drop: false }`
[INFO] [stdout] 46f9484b187f603b286c4ec1a03ef17e4b648c1e246ecd01d25d43384003127e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d5be0d77a967fd248e8350cfe77aad8f1af4f460bf92e58bc925cfd1f8367cc
[INFO] running `Command { std: "docker" "start" "-a" "4d5be0d77a967fd248e8350cfe77aad8f1af4f460bf92e58bc925cfd1f8367cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle_light v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `nightly`
[INFO] [stdout]    --> src/lib.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 | #![cfg_attr(feature="nightly", allow(unstable_features))]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `bitcoin`, `chaincore`, `crypto_bench`, `default`, `rand`, `ring`, `rust-crypto`, and `std`
[INFO] [stdout]     = help: consider adding `nightly` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/hash_impl.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:149:19
[INFO] [stdout]     |
[INFO] [stdout] 149 |     missing_docs, unused_qualifications,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 163 -         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout] 163 +         if size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/hash_impl.rs:163:38
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 163 -         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout] 163 +         if mem::size_of::<Self>() == size_of::<usize>() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/hash_impl.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 178 -         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout] 178 +         if size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/hash_impl.rs:178:38
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 178 -         if mem::size_of::<Self>() == mem::size_of::<usize>() {
[INFO] [stdout] 178 +         if mem::size_of::<Self>() == size_of::<usize>() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `merkle_light` (lib) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4d5be0d77a967fd248e8350cfe77aad8f1af4f460bf92e58bc925cfd1f8367cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d5be0d77a967fd248e8350cfe77aad8f1af4f460bf92e58bc925cfd1f8367cc", kill_on_drop: false }`
[INFO] [stdout] 4d5be0d77a967fd248e8350cfe77aad8f1af4f460bf92e58bc925cfd1f8367cc