[INFO] fetching crate nightfall 0.1.8...
[INFO] checking nightfall-0.1.8 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate nightfall 0.1.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nightfall 0.1.8 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nightfall 0.1.8
[INFO] finished tweaking crates.io crate nightfall 0.1.8
[INFO] tweaked toml for crates.io crate nightfall 0.1.8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 9b41a1684e9d0338872b6047692fe7e29dcc9820e93693c076491cef6c444f32
[INFO] running `Command { std: "docker" "start" "-a" "9b41a1684e9d0338872b6047692fe7e29dcc9820e93693c076491cef6c444f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b41a1684e9d0338872b6047692fe7e29dcc9820e93693c076491cef6c444f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b41a1684e9d0338872b6047692fe7e29dcc9820e93693c076491cef6c444f32", kill_on_drop: false }`
[INFO] [stdout] 9b41a1684e9d0338872b6047692fe7e29dcc9820e93693c076491cef6c444f32
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 5dc329536756eb689fcd70b7daa98c2a509c5f71a046063e5b888144cb94668d
[INFO] running `Command { std: "docker" "start" "-a" "5dc329536756eb689fcd70b7daa98c2a509c5f71a046063e5b888144cb94668d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking spin v0.7.1
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling err-derive v0.3.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking catty v0.1.4
[INFO] [stderr]     Checking spinny v0.2.2
[INFO] [stderr]     Checking spinning_top v0.2.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking barrage v0.2.1
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling xtra_proc v0.1.0
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking psutil v3.2.1
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking flume v0.10.7
[INFO] [stderr]     Checking xtra v0.5.1
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking nightfall v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.50s
[INFO] running `Command { std: "docker" "inspect" "5dc329536756eb689fcd70b7daa98c2a509c5f71a046063e5b888144cb94668d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc329536756eb689fcd70b7daa98c2a509c5f71a046063e5b888144cb94668d", kill_on_drop: false }`
[INFO] [stdout] 5dc329536756eb689fcd70b7daa98c2a509c5f71a046063e5b888144cb94668d