[INFO] fetching crate casper-contract 4.0.0...
[INFO] checking casper-contract-4.0.0 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate casper-contract 4.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate casper-contract 4.0.0 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casper-contract 4.0.0
[INFO] finished tweaking crates.io crate casper-contract 4.0.0
[INFO] tweaked toml for crates.io crate casper-contract 4.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 103 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.1)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding blake2 v0.9.2 (latest: v0.10.6)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding crypto-mac v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding idna v0.5.0 (latest: v1.0.2)
[INFO] [stderr]       Adding num-derive v0.3.3 (latest: v0.4.2)
[INFO] [stderr]       Adding pulldown-cmark v0.9.6 (latest: v0.11.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.72)
[INFO] [stderr]       Adding toml v0.7.8 (latest: v0.8.16)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.17)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded k256 v0.13.3
[INFO] [stderr]   Downloaded hex_fmt v0.3.0
[INFO] [stderr]   Downloaded base16 v0.2.1
[INFO] [stderr]   Downloaded casper-types v4.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d71821aecd1c5bc882a7dc9aafb66cccbac13ce2a6a05dbfce26c6bfbc6aaff4
[INFO] running `Command { std: "docker" "start" "-a" "d71821aecd1c5bc882a7dc9aafb66cccbac13ce2a6a05dbfce26c6bfbc6aaff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d71821aecd1c5bc882a7dc9aafb66cccbac13ce2a6a05dbfce26c6bfbc6aaff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71821aecd1c5bc882a7dc9aafb66cccbac13ce2a6a05dbfce26c6bfbc6aaff4", kill_on_drop: false }`
[INFO] [stdout] d71821aecd1c5bc882a7dc9aafb66cccbac13ce2a6a05dbfce26c6bfbc6aaff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b12cdaf8f20e97c82ec2bf6cabe4130cd5d3344fac0c9c793a7fb5e30448b2b1
[INFO] running `Command { std: "docker" "start" "-a" "b12cdaf8f20e97c82ec2bf6cabe4130cd5d3344fac0c9c793a7fb5e30448b2b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking k256 v0.13.3
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]     Checking ed25519-dalek v2.1.1
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking casper-types v4.0.1
[INFO] [stderr]     Checking casper-contract v4.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:51:51
[INFO] [stdout]    |
[INFO] [stdout] 51 |     feature(alloc_error_handler, core_intrinsics, lang_items)
[INFO] [stdout]    |                                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout]    = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:51:34
[INFO] [stdout]    |
[INFO] [stdout] 51 |     feature(alloc_error_handler, core_intrinsics, lang_items)
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.68s
[INFO] running `Command { std: "docker" "inspect" "b12cdaf8f20e97c82ec2bf6cabe4130cd5d3344fac0c9c793a7fb5e30448b2b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b12cdaf8f20e97c82ec2bf6cabe4130cd5d3344fac0c9c793a7fb5e30448b2b1", kill_on_drop: false }`
[INFO] [stdout] b12cdaf8f20e97c82ec2bf6cabe4130cd5d3344fac0c9c793a7fb5e30448b2b1