[INFO] fetching crate aces 0.0.13...
[INFO] checking aces-0.0.13 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate aces 0.0.13 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate aces 0.0.13 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aces 0.0.13
[INFO] finished tweaking crates.io crate aces 0.0.13
[INFO] tweaked toml for crates.io crate aces 0.0.13 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4892616802d335f558980323a256e41a314339027d580a7dc1af419cc287727a
[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" "4892616802d335f558980323a256e41a314339027d580a7dc1af419cc287727a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4892616802d335f558980323a256e41a314339027d580a7dc1af419cc287727a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4892616802d335f558980323a256e41a314339027d580a7dc1af419cc287727a", kill_on_drop: false }`
[INFO] [stdout] 4892616802d335f558980323a256e41a314339027d580a7dc1af419cc287727a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69f042de6fa2dcad0eb666db6842c2cdefb1280dfe43b5c2f01c80a65700c1d3
[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" "69f042de6fa2dcad0eb666db6842c2cdefb1280dfe43b5c2f01c80a65700c1d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking varisat-formula v0.2.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking siphasher v0.3.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking vec_mut_scan v0.3.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking varisat-internal-proof v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling varisat v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking ordered-float v2.2.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling partial_ref_derive v0.3.2
[INFO] [stderr]    Compiling varisat-internal-macros v0.2.2
[INFO] [stderr]     Checking partial_ref v0.3.2
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking varisat-dimacs v0.2.2
[INFO] [stderr]     Checking varisat-checker v0.2.2
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking aces v0.0.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "69f042de6fa2dcad0eb666db6842c2cdefb1280dfe43b5c2f01c80a65700c1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69f042de6fa2dcad0eb666db6842c2cdefb1280dfe43b5c2f01c80a65700c1d3", kill_on_drop: false }`
[INFO] [stdout] 69f042de6fa2dcad0eb666db6842c2cdefb1280dfe43b5c2f01c80a65700c1d3