[INFO] fetching crate stdtx 0.2.1...
[INFO] checking stdtx-0.2.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate stdtx 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate stdtx 0.2.1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stdtx 0.2.1
[INFO] finished tweaking crates.io crate stdtx 0.2.1
[INFO] tweaked toml for crates.io crate stdtx 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 4ef727aba1ae322459596e0718533fa9c39b3dec709995a68ade50fa3f005c8a
[INFO] running `Command { std: "docker" "start" "-a" "4ef727aba1ae322459596e0718533fa9c39b3dec709995a68ade50fa3f005c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef727aba1ae322459596e0718533fa9c39b3dec709995a68ade50fa3f005c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef727aba1ae322459596e0718533fa9c39b3dec709995a68ade50fa3f005c8a", kill_on_drop: false }`
[INFO] [stdout] 4ef727aba1ae322459596e0718533fa9c39b3dec709995a68ade50fa3f005c8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06259ee3e7139a04eefb67156d03813e0046e4382c0ed781fa7ea55354f274cf
[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" "06259ee3e7139a04eefb67156d03813e0046e4382c0ed781fa7ea55354f274cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking prost-amino v0.6.0
[INFO] [stderr]    Compiling signature_derive v1.0.0-pre.2
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking signature v1.1.0
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]     Checking elliptic-curve v0.4.0
[INFO] [stderr]     Checking anomaly v0.2.0
[INFO] [stderr]     Checking k256 v0.3.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking ecdsa v0.6.1
[INFO] [stderr]     Checking signatory v0.20.0
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]    Compiling prost-amino-derive v0.6.1
[INFO] [stderr]     Checking signatory-secp256k1 v0.20.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking rust_decimal v1.7.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking stdtx v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.15s
[INFO] running `Command { std: "docker" "inspect" "06259ee3e7139a04eefb67156d03813e0046e4382c0ed781fa7ea55354f274cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06259ee3e7139a04eefb67156d03813e0046e4382c0ed781fa7ea55354f274cf", kill_on_drop: false }`
[INFO] [stdout] 06259ee3e7139a04eefb67156d03813e0046e4382c0ed781fa7ea55354f274cf