[INFO] fetching crate tree_hash 0.1.0...
[INFO] checking tree_hash-0.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate tree_hash 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate tree_hash 0.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree_hash 0.1.0
[INFO] finished tweaking crates.io crate tree_hash 0.1.0
[INFO] tweaked toml for crates.io crate tree_hash 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93f25edbbabe2a5ac8c627d3a504653d6526c1c3445979b376766ff1768661a2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93f25edbbabe2a5ac8c627d3a504653d6526c1c3445979b376766ff1768661a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93f25edbbabe2a5ac8c627d3a504653d6526c1c3445979b376766ff1768661a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f25edbbabe2a5ac8c627d3a504653d6526c1c3445979b376766ff1768661a2", kill_on_drop: false }`
[INFO] [stdout] 93f25edbbabe2a5ac8c627d3a504653d6526c1c3445979b376766ff1768661a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f945b5d3a52f0f1e5a1cfc0810c0518407f1421a24860b246418e1604cb22cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f945b5d3a52f0f1e5a1cfc0810c0518407f1421a24860b246418e1604cb22cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking rlp v0.4.6
[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking impl-rlp v0.2.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking uint v0.5.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]     Checking eth2_hashing v0.1.0
[INFO] [stderr]     Checking ethbloom v0.6.4
[INFO] [stderr]     Checking ethereum-types v0.5.2
[INFO] [stderr]    Compiling tree_hash_derive v0.1.0
[INFO] [stderr]     Checking tree_hash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/merkleize_padded.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / lazy_static! {
[INFO] [stdout] 12 | |     /// Cached zero hashes where `ZERO_HASHES[i]` is the hash of a Merkle tree with 2^i zero leaves.
[INFO] [stdout] 13 | |     static ref ZERO_HASHES: Vec<Vec<u8>> = {
[INFO] [stdout] 14 | |         let mut hashes = vec![vec![0; 32]; MAX_TREE_DEPTH + 1];
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     };
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "2f945b5d3a52f0f1e5a1cfc0810c0518407f1421a24860b246418e1604cb22cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f945b5d3a52f0f1e5a1cfc0810c0518407f1421a24860b246418e1604cb22cf", kill_on_drop: false }`
[INFO] [stdout] 2f945b5d3a52f0f1e5a1cfc0810c0518407f1421a24860b246418e1604cb22cf