[INFO] cloning repository https://github.com/andreyferriyan/rusty_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andreyferriyan/rusty_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreyferriyan%2Frusty_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreyferriyan%2Frusty_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a3e268217cec554583822349dc642925ff6796b
[INFO] checking andreyferriyan/rusty_learn against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreyferriyan%2Frusty_learn" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andreyferriyan/rusty_learn on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andreyferriyan/rusty_learn
[INFO] finished tweaking git repo https://github.com/andreyferriyan/rusty_learn
[INFO] tweaked toml for git repo https://github.com/andreyferriyan/rusty_learn written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/andreyferriyan/rusty_learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.7.3
[INFO] [stderr]   Downloaded rustlearn v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4efa0b2e3f5b59c6d4891ef959a736eb45a77864925f900d8196a8afa993bb2a
[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" "4efa0b2e3f5b59c6d4891ef959a736eb45a77864925f900d8196a8afa993bb2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4efa0b2e3f5b59c6d4891ef959a736eb45a77864925f900d8196a8afa993bb2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4efa0b2e3f5b59c6d4891ef959a736eb45a77864925f900d8196a8afa993bb2a", kill_on_drop: false }`
[INFO] [stdout] 4efa0b2e3f5b59c6d4891ef959a736eb45a77864925f900d8196a8afa993bb2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdbe6856c03866fa04a0d7f3e2bcd47cf8cc9de31c50b85f97307a285ed67a64
[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" "cdbe6856c03866fa04a0d7f3e2bcd47cf8cc9de31c50b85f97307a285ed67a64", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling rustlearn v0.5.0
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.16
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking zip v0.5.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.13
[INFO] [stderr]     Checking uuid v0.7.3
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking h2 v0.1.17
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking hyper v0.12.25
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.12
[INFO] [stderr]     Checking rusty_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.53s
[INFO] running `Command { std: "docker" "inspect" "cdbe6856c03866fa04a0d7f3e2bcd47cf8cc9de31c50b85f97307a285ed67a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdbe6856c03866fa04a0d7f3e2bcd47cf8cc9de31c50b85f97307a285ed67a64", kill_on_drop: false }`
[INFO] [stdout] cdbe6856c03866fa04a0d7f3e2bcd47cf8cc9de31c50b85f97307a285ed67a64