[INFO] updating cached repository https://github.com/omicronns/serde-test
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 43e6938795a10d7d60c8549c7e9dbd57e54de1dd
[INFO] checking omicronns/serde-test against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fomicronns%2Fserde-test" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/omicronns/serde-test on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/omicronns/serde-test
[INFO] finished tweaking git repo https://github.com/omicronns/serde-test
[INFO] tweaked toml for git repo https://github.com/omicronns/serde-test written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/omicronns/serde-test already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ddab8da8c07d8c2bed531bd4a7b4551626f2b1eeb729bdac4e42a7df42ccf24e
[INFO] running `"docker" "start" "-a" "ddab8da8c07d8c2bed531bd4a7b4551626f2b1eeb729bdac4e42a7df42ccf24e"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking rust_decimal v0.11.1
[INFO] [stderr]     Checking serde-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.36s
[INFO] running `"docker" "inspect" "ddab8da8c07d8c2bed531bd4a7b4551626f2b1eeb729bdac4e42a7df42ccf24e"`
[INFO] running `"docker" "rm" "-f" "ddab8da8c07d8c2bed531bd4a7b4551626f2b1eeb729bdac4e42a7df42ccf24e"`
[INFO] [stdout] ddab8da8c07d8c2bed531bd4a7b4551626f2b1eeb729bdac4e42a7df42ccf24e