[INFO] fetching crate merkle_light 0.4.0...
[INFO] testing merkle_light-0.4.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate merkle_light 0.4.0 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merkle_light 0.4.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.81
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.81
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.81
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.81
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded cc v1.0.73
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.81
[INFO] [stderr]   Downloaded bumpalo v3.10.0
[INFO] [stderr]   Downloaded js-sys v0.3.58
[INFO] [stderr]   Downloaded web-sys v0.3.58
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db0795437ab6976b0571037c5a57e7eabc41d04e476e5e60696f45cecf9801a3
[INFO] running `Command { std: "docker" "start" "-a" "db0795437ab6976b0571037c5a57e7eabc41d04e476e5e60696f45cecf9801a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db0795437ab6976b0571037c5a57e7eabc41d04e476e5e60696f45cecf9801a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0795437ab6976b0571037c5a57e7eabc41d04e476e5e60696f45cecf9801a3", kill_on_drop: false }`
[INFO] [stdout] db0795437ab6976b0571037c5a57e7eabc41d04e476e5e60696f45cecf9801a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15eac93d2f93a98346da58e0a72e1e3dd6531740fa4d2c267d4377d64ba77870
[INFO] running `Command { std: "docker" "start" "-a" "15eac93d2f93a98346da58e0a72e1e3dd6531740fa4d2c267d4377d64ba77870", 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" "15eac93d2f93a98346da58e0a72e1e3dd6531740fa4d2c267d4377d64ba77870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15eac93d2f93a98346da58e0a72e1e3dd6531740fa4d2c267d4377d64ba77870", kill_on_drop: false }`
[INFO] [stdout] 15eac93d2f93a98346da58e0a72e1e3dd6531740fa4d2c267d4377d64ba77870
