[INFO] fetching crate ark-serialize 0.5.0...
[INFO] testing ark-serialize-0.5.0 against master#a1531335fe2807715fff569904d99602022643a7 for pr-145277
[INFO] extracting crate ark-serialize 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate ark-serialize 0.5.0
[INFO] finished tweaking crates.io crate ark-serialize 0.5.0
[INFO] tweaked toml for crates.io crate ark-serialize 0.5.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ark-serialize 0.5.0 on toolchain a1531335fe2807715fff569904d99602022643a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "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" "+a1531335fe2807715fff569904d99602022643a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-serialize-derive v0.5.0
[INFO] [stderr]   Downloaded arrayvec v0.7.6
[INFO] [stderr]   Downloaded ark-std v0.5.0
[INFO] [stderr]   Downloaded rayon-core v1.13.0
[INFO] [stderr]   Downloaded rayon v1.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b086377a01b28e1781b1028249abe6dd5815cc62dcbcf83b2f32e43d76c63e19
[INFO] running `Command { std: "docker" "start" "-a" "b086377a01b28e1781b1028249abe6dd5815cc62dcbcf83b2f32e43d76c63e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b086377a01b28e1781b1028249abe6dd5815cc62dcbcf83b2f32e43d76c63e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b086377a01b28e1781b1028249abe6dd5815cc62dcbcf83b2f32e43d76c63e19", kill_on_drop: false }`
[INFO] [stdout] b086377a01b28e1781b1028249abe6dd5815cc62dcbcf83b2f32e43d76c63e19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 689292ec5f27ef177cd67a1a37954174adf692160e1c81232c132bf95ac9cbfa
[INFO] running `Command { std: "docker" "start" "-a" "689292ec5f27ef177cd67a1a37954174adf692160e1c81232c132bf95ac9cbfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ark-std v0.5.0
[INFO] [stderr]    Compiling ark-serialize v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.82s
[INFO] running `Command { std: "docker" "inspect" "689292ec5f27ef177cd67a1a37954174adf692160e1c81232c132bf95ac9cbfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689292ec5f27ef177cd67a1a37954174adf692160e1c81232c132bf95ac9cbfa", kill_on_drop: false }`
[INFO] [stdout] 689292ec5f27ef177cd67a1a37954174adf692160e1c81232c132bf95ac9cbfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2c79c3f6a288e9d8623159497b0ad39c18cdd19819be81761f8bbdae052682e
[INFO] running `Command { std: "docker" "start" "-a" "c2c79c3f6a288e9d8623159497b0ad39c18cdd19819be81761f8bbdae052682e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ark-serialize v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `sha2`
[INFO] [stdout]    --> src/test.rs:248:20
[INFO] [stdout]     |
[INFO] [stdout] 248 |     test_hash::<_, sha2::Sha256>(Dummy);
[INFO] [stdout]     |                    ^^^^ use of unresolved module or unlinked crate `sha2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `sha2`, use `cargo add sha2` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `sha2`
[INFO] [stdout]    --> src/test.rs:249:20
[INFO] [stdout]     |
[INFO] [stdout] 249 |     test_hash::<_, sha2::Sha512>(Dummy);
[INFO] [stdout]     |                    ^^^^ use of unresolved module or unlinked crate `sha2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `sha2`, use `cargo add sha2` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `blake2`
[INFO] [stdout]    --> src/test.rs:254:20
[INFO] [stdout]     |
[INFO] [stdout] 254 |     test_hash::<_, blake2::Blake2b512>(Dummy);
[INFO] [stdout]     |                    ^^^^^^ use of unresolved module or unlinked crate `blake2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `blake2`, use `cargo add blake2` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `blake2`
[INFO] [stdout]    --> src/test.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |     test_hash::<_, blake2::Blake2s256>(Dummy);
[INFO] [stdout]     |                    ^^^^^^ use of unresolved module or unlinked crate `blake2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `blake2`, use `cargo add blake2` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `sha3`
[INFO] [stdout]    --> src/test.rs:260:20
[INFO] [stdout]     |
[INFO] [stdout] 260 |     test_hash::<_, sha3::Sha3_256>(Dummy);
[INFO] [stdout]     |                    ^^^^ use of unresolved module or unlinked crate `sha3`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `sha3`, use `cargo add sha3` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `sha3`
[INFO] [stdout]    --> src/test.rs:261:20
[INFO] [stdout]     |
[INFO] [stdout] 261 |     test_hash::<_, sha3::Sha3_512>(Dummy);
[INFO] [stdout]     |                    ^^^^ use of unresolved module or unlinked crate `sha3`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `sha3`, use `cargo add sha3` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ark-serialize` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "c2c79c3f6a288e9d8623159497b0ad39c18cdd19819be81761f8bbdae052682e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c79c3f6a288e9d8623159497b0ad39c18cdd19819be81761f8bbdae052682e", kill_on_drop: false }`
[INFO] [stdout] c2c79c3f6a288e9d8623159497b0ad39c18cdd19819be81761f8bbdae052682e