[INFO] fetching crate sagan 0.0.0...
[INFO] checking sagan-0.0.0 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate sagan 0.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sagan 0.0.0 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sagan 0.0.0
[INFO] finished tweaking crates.io crate sagan 0.0.0
[INFO] tweaked toml for crates.io crate sagan 0.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 43a83a555a3e326ce0bd2df009a26134f309a459e2d665bf757015f3dc322577
[INFO] running `Command { std: "docker" "start" "-a" "43a83a555a3e326ce0bd2df009a26134f309a459e2d665bf757015f3dc322577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43a83a555a3e326ce0bd2df009a26134f309a459e2d665bf757015f3dc322577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43a83a555a3e326ce0bd2df009a26134f309a459e2d665bf757015f3dc322577", kill_on_drop: false }`
[INFO] [stdout] 43a83a555a3e326ce0bd2df009a26134f309a459e2d665bf757015f3dc322577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 40abc33e558152d622692d7e1cc8854c2d991c1897123ed37986f4b7a5636eba
[INFO] running `Command { std: "docker" "start" "-a" "40abc33e558152d622692d7e1cc8854c2d991c1897123ed37986f4b7a5636eba", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking color-backtrace v0.3.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling darling_core v0.10.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling darling_macro v0.10.3
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]    Compiling darling v0.10.3
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling abscissa_derive v0.5.0
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking handlebars v2.0.4
[INFO] [stderr]     Checking abscissa_core v0.5.2
[INFO] [stderr]     Checking abscissa v0.5.1
[INFO] [stderr]     Checking sagan v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "40abc33e558152d622692d7e1cc8854c2d991c1897123ed37986f4b7a5636eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40abc33e558152d622692d7e1cc8854c2d991c1897123ed37986f4b7a5636eba", kill_on_drop: false }`
[INFO] [stdout] 40abc33e558152d622692d7e1cc8854c2d991c1897123ed37986f4b7a5636eba