[INFO] fetching crate ramp 0.6.0...
[INFO] checking ramp-0.6.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate ramp 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ramp 0.6.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ramp 0.6.0
[INFO] finished tweaking crates.io crate ramp 0.6.0
[INFO] tweaked toml for crates.io crate ramp 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ramp 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded addr2line v0.15.1
[INFO] [stderr]   Downloaded backtrace v0.3.59
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded rust-gmp v0.5.0
[INFO] [stderr]   Downloaded object v0.24.0
[INFO] [stderr]   Downloaded rustc-cfg v0.4.0
[INFO] [stderr]   Downloaded ieee754 v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20cfc7bcd63c98f9b7775b5bb4b26c41941f9bbdb7da432797323915dae7a1a6
[INFO] running `Command { std: "docker" "start" "-a" "20cfc7bcd63c98f9b7775b5bb4b26c41941f9bbdb7da432797323915dae7a1a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20cfc7bcd63c98f9b7775b5bb4b26c41941f9bbdb7da432797323915dae7a1a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20cfc7bcd63c98f9b7775b5bb4b26c41941f9bbdb7da432797323915dae7a1a6", kill_on_drop: false }`
[INFO] [stdout] 20cfc7bcd63c98f9b7775b5bb4b26c41941f9bbdb7da432797323915dae7a1a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49316d904899c7b3b198597640c81545dff14a8d5bf3ffd2ac632c00835157ab
[INFO] running `Command { std: "docker" "start" "-a" "49316d904899c7b3b198597640c81545dff14a8d5bf3ffd2ac632c00835157ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking ieee754 v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling addr2line v0.15.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rustc-cfg v0.4.0
[INFO] [stderr]    Compiling ramp v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.02s
[INFO] running `Command { std: "docker" "inspect" "49316d904899c7b3b198597640c81545dff14a8d5bf3ffd2ac632c00835157ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49316d904899c7b3b198597640c81545dff14a8d5bf3ffd2ac632c00835157ab", kill_on_drop: false }`
[INFO] [stdout] 49316d904899c7b3b198597640c81545dff14a8d5bf3ffd2ac632c00835157ab