[INFO] crate compact_arena 0.4.0 is already in cache
[INFO] checking compact_arena-0.4.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate compact_arena 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate compact_arena 0.4.0 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 compact_arena 0.4.0
[INFO] finished tweaking crates.io crate compact_arena 0.4.0
[INFO] tweaked toml for crates.io crate compact_arena 0.4.0 written to /workspace/builds/worker-1/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] 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" "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] 00070d42d8b038098d2c40b497969c1ecf5d4a6915d54babac9dcbb3e4d224c9
[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" "00070d42d8b038098d2c40b497969c1ecf5d4a6915d54babac9dcbb3e4d224c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00070d42d8b038098d2c40b497969c1ecf5d4a6915d54babac9dcbb3e4d224c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00070d42d8b038098d2c40b497969c1ecf5d4a6915d54babac9dcbb3e4d224c9", kill_on_drop: false }`
[INFO] [stdout] 00070d42d8b038098d2c40b497969c1ecf5d4a6915d54babac9dcbb3e4d224c9
[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" "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] b1fa0e621d29b423de79fce6e91573a53a06a7feb8ff5669c6ce6417656cf8cb
[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" "b1fa0e621d29b423de79fce6e91573a53a06a7feb8ff5669c6ce6417656cf8cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]     Checking compact_arena v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking tester v0.6.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.76s
[INFO] running `Command { std: "docker" "inspect" "b1fa0e621d29b423de79fce6e91573a53a06a7feb8ff5669c6ce6417656cf8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1fa0e621d29b423de79fce6e91573a53a06a7feb8ff5669c6ce6417656cf8cb", kill_on_drop: false }`
[INFO] [stdout] b1fa0e621d29b423de79fce6e91573a53a06a7feb8ff5669c6ce6417656cf8cb