[INFO] fetching crate cargo-msrv 0.2.0...
[INFO] checking cargo-msrv-0.2.0 against beta for pr-78714
[INFO] extracting crate cargo-msrv 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cargo-msrv 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-msrv 0.2.0
[INFO] finished tweaking crates.io crate cargo-msrv 0.2.0
[INFO] tweaked toml for crates.io crate cargo-msrv 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate cargo-msrv 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0445423cc6887eea9a4b4cb227d9cf6c0d85356d1ca17e0eaf56e6d5c15b299e
[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" "0445423cc6887eea9a4b4cb227d9cf6c0d85356d1ca17e0eaf56e6d5c15b299e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0445423cc6887eea9a4b4cb227d9cf6c0d85356d1ca17e0eaf56e6d5c15b299e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0445423cc6887eea9a4b4cb227d9cf6c0d85356d1ca17e0eaf56e6d5c15b299e", kill_on_drop: false }`
[INFO] [stdout] 0445423cc6887eea9a4b4cb227d9cf6c0d85356d1ca17e0eaf56e6d5c15b299e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb9245daf59a349ec625f48a2f927de5960095d9aea1aa21b2bc8a7290de5a29
[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" "bb9245daf59a349ec625f48a2f927de5960095d9aea1aa21b2bc8a7290de5a29", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking attohttpc v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking cargo-msrv v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.19s
[INFO] running `Command { std: "docker" "inspect" "bb9245daf59a349ec625f48a2f927de5960095d9aea1aa21b2bc8a7290de5a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9245daf59a349ec625f48a2f927de5960095d9aea1aa21b2bc8a7290de5a29", kill_on_drop: false }`
[INFO] [stdout] bb9245daf59a349ec625f48a2f927de5960095d9aea1aa21b2bc8a7290de5a29