[INFO] crate bc 0.1.9 is already in cache
[INFO] checking bc-0.1.9 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate bc 0.1.9 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bc 0.1.9 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bc 0.1.9
[INFO] finished tweaking crates.io crate bc 0.1.9
[INFO] tweaked toml for crates.io crate bc 0.1.9 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac1a6ad520b03e59df2923b3bd438739f7279e945fc4e4fe4c463b8803bcbdb3
[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" "ac1a6ad520b03e59df2923b3bd438739f7279e945fc4e4fe4c463b8803bcbdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1a6ad520b03e59df2923b3bd438739f7279e945fc4e4fe4c463b8803bcbdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1a6ad520b03e59df2923b3bd438739f7279e945fc4e4fe4c463b8803bcbdb3", kill_on_drop: false }`
[INFO] [stdout] ac1a6ad520b03e59df2923b3bd438739f7279e945fc4e4fe4c463b8803bcbdb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81487daa999cd6de512e7c1cdca92cf1f8149029b11ea5e9f213042dc6b4b00e
[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" "81487daa999cd6de512e7c1cdca92cf1f8149029b11ea5e9f213042dc6b4b00e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling execute-command-tokens v0.1.2
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling execute-command-macro-impl v0.1.4
[INFO] [stderr]     Checking execute-command-macro v0.1.4
[INFO] [stderr]     Checking execute v0.2.7
[INFO] [stderr]     Checking bc v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.15s
[INFO] running `Command { std: "docker" "inspect" "81487daa999cd6de512e7c1cdca92cf1f8149029b11ea5e9f213042dc6b4b00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81487daa999cd6de512e7c1cdca92cf1f8149029b11ea5e9f213042dc6b4b00e", kill_on_drop: false }`
[INFO] [stdout] 81487daa999cd6de512e7c1cdca92cf1f8149029b11ea5e9f213042dc6b4b00e