[INFO] cloning repository https://github.com/expenses/scale-forwards-compatibility-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/expenses/scale-forwards-compatibility-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexpenses%2Fscale-forwards-compatibility-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexpenses%2Fscale-forwards-compatibility-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e8f2332f84495017e652551f0f520da0a197461
[INFO] checking expenses/scale-forwards-compatibility-test against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexpenses%2Fscale-forwards-compatibility-test" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/expenses/scale-forwards-compatibility-test on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/expenses/scale-forwards-compatibility-test
[INFO] finished tweaking git repo https://github.com/expenses/scale-forwards-compatibility-test
[INFO] tweaked toml for git repo https://github.com/expenses/scale-forwards-compatibility-test written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/expenses/scale-forwards-compatibility-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] f58365c26489ad7579f6f428ad0a2ee59ec7247b1337b729c29fb0fccce543ae
[INFO] running `Command { std: "docker" "start" "-a" "f58365c26489ad7579f6f428ad0a2ee59ec7247b1337b729c29fb0fccce543ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f58365c26489ad7579f6f428ad0a2ee59ec7247b1337b729c29fb0fccce543ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f58365c26489ad7579f6f428ad0a2ee59ec7247b1337b729c29fb0fccce543ae", kill_on_drop: false }`
[INFO] [stdout] f58365c26489ad7579f6f428ad0a2ee59ec7247b1337b729c29fb0fccce543ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33a9c99807b315e8bf587009412537dbfa880c76a4aee8b74c9a371a522e19b4
[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" "33a9c99807b315e8bf587009412537dbfa880c76a4aee8b74c9a371a522e19b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.0
[INFO] [stderr]     Checking parity-scale-codec v1.3.0
[INFO] [stderr]     Checking scale-forwards-compatibility-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_structs`
[INFO] [stdout]    --> src/lib.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn test_structs() -> (version_1::Struct, version_2::Struct, version_3::Struct) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.41s
[INFO] running `Command { std: "docker" "inspect" "33a9c99807b315e8bf587009412537dbfa880c76a4aee8b74c9a371a522e19b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a9c99807b315e8bf587009412537dbfa880c76a4aee8b74c9a371a522e19b4", kill_on_drop: false }`
[INFO] [stdout] 33a9c99807b315e8bf587009412537dbfa880c76a4aee8b74c9a371a522e19b4