[INFO] cloning repository https://github.com/twittner/encoding-size
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twittner/encoding-size" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwittner%2Fencoding-size", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwittner%2Fencoding-size'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b3cf39c3beb82b05ad27837e469151a28cb8152
[INFO] checking twittner/encoding-size against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwittner%2Fencoding-size" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twittner/encoding-size on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twittner/encoding-size
[INFO] finished tweaking git repo https://github.com/twittner/encoding-size
[INFO] tweaked toml for git repo https://github.com/twittner/encoding-size written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/twittner/encoding-size already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://gitlab.com/twittner/miel.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parity-scale-codec v1.0.5
[INFO] [stderr]   Downloaded byte-slice-cast v0.3.2
[INFO] [stderr]   Downloaded bitvec v0.14.0
[INFO] [stderr]   Downloaded parity-scale-codec-derive v1.0.2
[INFO] [stderr]   Downloaded serde_cbor v0.10.1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e88b24bcce7c1515beb123ba033b6759be6fff1912234eb1d8a742a6fef88384
[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" "e88b24bcce7c1515beb123ba033b6759be6fff1912234eb1d8a742a6fef88384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e88b24bcce7c1515beb123ba033b6759be6fff1912234eb1d8a742a6fef88384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88b24bcce7c1515beb123ba033b6759be6fff1912234eb1d8a742a6fef88384", kill_on_drop: false }`
[INFO] [stdout] e88b24bcce7c1515beb123ba033b6759be6fff1912234eb1d8a742a6fef88384
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 13ec82663ab5bb2fd1fa233b54f2011ce1c533d02858efd2c37afc1f587ba3bd
[INFO] running `Command { std: "docker" "start" "-a" "13ec82663ab5bb2fd1fa233b54f2011ce1c533d02858efd2c37afc1f587ba3bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]     Checking half v1.3.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.2
[INFO] [stderr]     Checking bitvec v0.14.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking getrandom v0.1.11
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling prost v0.5.0
[INFO] [stderr]    Compiling prost-types v0.5.0
[INFO] [stderr]     Checking serde_cbor v0.10.1
[INFO] [stderr]     Checking parity-scale-codec v1.0.5
[INFO] [stderr]     Checking miel v0.1.0 (https://gitlab.com/twittner/miel.git#7f1a9d4d)
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling encoding-size v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.0.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.04s
[INFO] running `Command { std: "docker" "inspect" "13ec82663ab5bb2fd1fa233b54f2011ce1c533d02858efd2c37afc1f587ba3bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ec82663ab5bb2fd1fa233b54f2011ce1c533d02858efd2c37afc1f587ba3bd", kill_on_drop: false }`
[INFO] [stdout] 13ec82663ab5bb2fd1fa233b54f2011ce1c533d02858efd2c37afc1f587ba3bd