[INFO] fetching crate alt_serde_json 1.0.61...
[INFO] checking alt_serde_json-1.0.61 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate alt_serde_json 1.0.61 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate alt_serde_json 1.0.61 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alt_serde_json 1.0.61
[INFO] finished tweaking crates.io crate alt_serde_json 1.0.61
[INFO] tweaked toml for crates.io crate alt_serde_json 1.0.61 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46f1e1a1040345e721b1388bee134526b319e21d5fa01ddb823a0bea86e3a571
[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" "46f1e1a1040345e721b1388bee134526b319e21d5fa01ddb823a0bea86e3a571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46f1e1a1040345e721b1388bee134526b319e21d5fa01ddb823a0bea86e3a571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f1e1a1040345e721b1388bee134526b319e21d5fa01ddb823a0bea86e3a571", kill_on_drop: false }`
[INFO] [stdout] 46f1e1a1040345e721b1388bee134526b319e21d5fa01ddb823a0bea86e3a571
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53f130f5697d7816f5ac3c1b3aaf8a240ce8b199d21781dcc62b7f3e3bc158a2
[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" "53f130f5697d7816f5ac3c1b3aaf8a240ce8b199d21781dcc62b7f3e3bc158a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling alt_serde v1.0.119
[INFO] [stderr]    Compiling alt_serde_derive v1.0.119
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling trybuild v1.0.45
[INFO] [stderr]    Compiling alt_serde_json v1.0.61 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking dissimilar v1.0.2
[INFO] [stderr]    Compiling psm v0.1.16
[INFO] [stderr]    Compiling stacker v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling automod v1.0.2
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_stacker v0.1.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.19s
[INFO] running `Command { std: "docker" "inspect" "53f130f5697d7816f5ac3c1b3aaf8a240ce8b199d21781dcc62b7f3e3bc158a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f130f5697d7816f5ac3c1b3aaf8a240ce8b199d21781dcc62b7f3e3bc158a2", kill_on_drop: false }`
[INFO] [stdout] 53f130f5697d7816f5ac3c1b3aaf8a240ce8b199d21781dcc62b7f3e3bc158a2