[INFO] cloning repository https://github.com/CGCL-codes/Cloak
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CGCL-codes/Cloak" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGCL-codes%2FCloak", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGCL-codes%2FCloak'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6918204ca007099ec2698e0c7c116c4d5fb5def
[INFO] checking CGCL-codes/Cloak against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGCL-codes%2FCloak" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CGCL-codes/Cloak
[INFO] finished tweaking git repo https://github.com/CGCL-codes/Cloak
[INFO] tweaked toml for git repo https://github.com/CGCL-codes/Cloak written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CGCL-codes/Cloak on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CGCL-codes/Cloak 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-rt v1.1.1
[INFO] [stderr]   Downloaded sha1_smol v1.0.0
[INFO] [stderr]   Downloaded actix-codec v0.3.0
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded actix-macros v0.1.3
[INFO] [stderr]   Downloaded actix-testing v1.0.1
[INFO] [stderr]   Downloaded actix-connect v2.0.0
[INFO] [stderr]   Downloaded bytestring v1.2.0
[INFO] [stderr]   Downloaded copyless v0.1.5
[INFO] [stderr]   Downloaded actix-tls v2.0.0
[INFO] [stderr]   Downloaded actix-cors v0.5.4
[INFO] [stderr]   Downloaded actix-server v1.0.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded rsa v0.6.1
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded libm v0.2.5
[INFO] [stderr]   Downloaded actix-web v3.3.3
[INFO] [stderr]   Downloaded actix-http v2.2.2
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded num-bigint-dig v0.8.1
[INFO] [stderr]   Downloaded bindgen v0.58.1
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded ndarray v0.15.6
[INFO] [stderr]   Downloaded packed_simd_2 v0.3.8
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded cexpr v0.4.0
[INFO] [stderr]   Downloaded env_logger v0.8.4
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded structopt v0.3.26
[INFO] [stderr]   Downloaded actix-utils v2.0.0
[INFO] [stderr]   Downloaded curve25519-dalek-ng v4.1.1
[INFO] [stderr]   Downloaded actix-service v1.0.6
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded clang-sys v1.4.0
[INFO] [stderr]   Downloaded actix-router v0.2.7
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded pkcs1 v0.3.3
[INFO] [stderr]   Downloaded base64ct v1.5.2
[INFO] [stderr]   Downloaded howlong v0.1.7
[INFO] [stderr]   Downloaded base-x v0.2.11
[INFO] [stderr]   Downloaded sha1 v0.6.1
[INFO] [stderr]   Downloaded pem-rfc7468 v0.3.1
[INFO] [stderr]   Downloaded zeroize v1.5.7
[INFO] [stderr]   Downloaded awc v2.0.3
[INFO] [stderr]   Downloaded const_fn v0.4.9
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded jobserver v0.1.25
[INFO] [stderr]   Downloaded rocksdb v0.15.0
[INFO] [stderr]   Downloaded actix-web-codegen v0.4.0
[INFO] [stderr]   Downloaded actix-threadpool v0.3.3
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded which v3.1.1
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded merlin v3.0.0
[INFO] [stderr]   Downloaded subtle-ng v2.5.0
[INFO] [stderr]   Downloaded serde_bytes v0.11.7
[INFO] [stderr]   Downloaded sha2-asm v0.6.2
[INFO] [stderr]   Downloaded brotli v3.3.4
[INFO] [stderr]   Downloaded librocksdb-sys v6.20.3
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] edb6e15fe7e196f7d1f582d961b1427df9b9a96c0cab7c21441b515a5ac51b99
[INFO] running `Command { std: "docker" "start" "-a" "edb6e15fe7e196f7d1f582d961b1427df9b9a96c0cab7c21441b515a5ac51b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edb6e15fe7e196f7d1f582d961b1427df9b9a96c0cab7c21441b515a5ac51b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edb6e15fe7e196f7d1f582d961b1427df9b9a96c0cab7c21441b515a5ac51b99", kill_on_drop: false }`
[INFO] [stdout] edb6e15fe7e196f7d1f582d961b1427df9b9a96c0cab7c21441b515a5ac51b99
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7416e3daa4caadcbcae95098056f0e839196f5e583f1a60c294fe16314c00b45
[INFO] running `Command { std: "docker" "start" "-a" "7416e3daa4caadcbcae95098056f0e839196f5e583f1a60c294fe16314c00b45", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking base64ct v1.5.2
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7416e3daa4caadcbcae95098056f0e839196f5e583f1a60c294fe16314c00b45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7416e3daa4caadcbcae95098056f0e839196f5e583f1a60c294fe16314c00b45", kill_on_drop: false }`
[INFO] [stdout] 7416e3daa4caadcbcae95098056f0e839196f5e583f1a60c294fe16314c00b45
