[INFO] fetching crate syn-codegen 0.2.0...
[INFO] checking syn-codegen-0.2.0 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate syn-codegen 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate syn-codegen 0.2.0 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-codegen 0.2.0
[INFO] finished tweaking crates.io crate syn-codegen 0.2.0
[INFO] tweaked toml for crates.io crate syn-codegen 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38c23b06e4d67552fd67f2d9da5a3fc7e5ff6f706567fdc2f3e7679cd2104877
[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" "38c23b06e4d67552fd67f2d9da5a3fc7e5ff6f706567fdc2f3e7679cd2104877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38c23b06e4d67552fd67f2d9da5a3fc7e5ff6f706567fdc2f3e7679cd2104877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c23b06e4d67552fd67f2d9da5a3fc7e5ff6f706567fdc2f3e7679cd2104877", kill_on_drop: false }`
[INFO] [stdout] 38c23b06e4d67552fd67f2d9da5a3fc7e5ff6f706567fdc2f3e7679cd2104877
[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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71c1fc93a5a60603c984040d2de1d61a8ffd2c91c53eea9dba78e8dc1f593e1
[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" "e71c1fc93a5a60603c984040d2de1d61a8ffd2c91c53eea9dba78e8dc1f593e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking syn-codegen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.22s
[INFO] running `Command { std: "docker" "inspect" "e71c1fc93a5a60603c984040d2de1d61a8ffd2c91c53eea9dba78e8dc1f593e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71c1fc93a5a60603c984040d2de1d61a8ffd2c91c53eea9dba78e8dc1f593e1", kill_on_drop: false }`
[INFO] [stdout] e71c1fc93a5a60603c984040d2de1d61a8ffd2c91c53eea9dba78e8dc1f593e1