[INFO] cloning repository https://github.com/jflinchbaugh/my-rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jflinchbaugh/my-rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflinchbaugh%2Fmy-rust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflinchbaugh%2Fmy-rust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1080c5e67b7cef3e66153f31f24dfe3c56ad6d6a
[INFO] checking jflinchbaugh/my-rust-example against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjflinchbaugh%2Fmy-rust-example" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jflinchbaugh/my-rust-example on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jflinchbaugh/my-rust-example
[INFO] finished tweaking git repo https://github.com/jflinchbaugh/my-rust-example
[INFO] tweaked toml for git repo https://github.com/jflinchbaugh/my-rust-example written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jflinchbaugh/my-rust-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "fetch" "--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] 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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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] 50c0ac69d0830bfd9466659bdcef761a1cfca0b8d3d0fcd8396a2ba5056f8f4e
[INFO] running `Command { std: "docker" "start" "-a" "50c0ac69d0830bfd9466659bdcef761a1cfca0b8d3d0fcd8396a2ba5056f8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50c0ac69d0830bfd9466659bdcef761a1cfca0b8d3d0fcd8396a2ba5056f8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50c0ac69d0830bfd9466659bdcef761a1cfca0b8d3d0fcd8396a2ba5056f8f4e", kill_on_drop: false }`
[INFO] [stdout] 50c0ac69d0830bfd9466659bdcef761a1cfca0b8d3d0fcd8396a2ba5056f8f4e
[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" "RUSTDOCFLAGS=--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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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] 491794acb7bef98d44a4be525c664fd7d1ec8eda5eb063cf0bd7100cbe4549c1
[INFO] running `Command { std: "docker" "start" "-a" "491794acb7bef98d44a4be525c664fd7d1ec8eda5eb063cf0bd7100cbe4549c1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking libflate v0.1.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3 (https://github.com/rust-lang-nursery/rand#7c5ceea9)
[INFO] [stderr]     Checking rand_chacha v0.3.1 (https://github.com/rust-lang-nursery/rand#7c5ceea9)
[INFO] [stderr]     Checking rand v0.8.4 (https://github.com/rust-lang-nursery/rand#7c5ceea9)
[INFO] [stderr]     Checking my-rust-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.24s
[INFO] running `Command { std: "docker" "inspect" "491794acb7bef98d44a4be525c664fd7d1ec8eda5eb063cf0bd7100cbe4549c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491794acb7bef98d44a4be525c664fd7d1ec8eda5eb063cf0bd7100cbe4549c1", kill_on_drop: false }`
[INFO] [stdout] 491794acb7bef98d44a4be525c664fd7d1ec8eda5eb063cf0bd7100cbe4549c1