[INFO] fetching crate component_group 2.0.0...
[INFO] checking component_group-2.0.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate component_group 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate component_group 2.0.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate component_group 2.0.0
[INFO] finished tweaking crates.io crate component_group 2.0.0
[INFO] tweaked toml for crates.io crate component_group 2.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shrev v1.1.1
[INFO] [stderr]   Downloaded mopa v0.2.2
[INFO] [stderr]   Downloaded component_group_derive v2.0.0
[INFO] [stderr]   Downloaded tuple_utils v0.3.0
[INFO] [stderr]   Downloaded specs-derive v0.4.1
[INFO] [stderr]   Downloaded compiletest_rs v0.4.1
[INFO] [stderr]   Downloaded specs v0.15.1
[INFO] [stderr]   Downloaded shred v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] c8ba90419e00d329ec0f0553bd7ca70bf1165a5d3d40b51cbe0e8a72e68e1cb0
[INFO] running `Command { std: "docker" "start" "-a" "c8ba90419e00d329ec0f0553bd7ca70bf1165a5d3d40b51cbe0e8a72e68e1cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8ba90419e00d329ec0f0553bd7ca70bf1165a5d3d40b51cbe0e8a72e68e1cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ba90419e00d329ec0f0553bd7ca70bf1165a5d3d40b51cbe0e8a72e68e1cb0", kill_on_drop: false }`
[INFO] [stdout] c8ba90419e00d329ec0f0553bd7ca70bf1165a5d3d40b51cbe0e8a72e68e1cb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] f3ce1e8f83b16cba1b847dd0e3829dbfac161c4175f33f5028574209ca8c51dd
[INFO] running `Command { std: "docker" "start" "-a" "f3ce1e8f83b16cba1b847dd0e3829dbfac161c4175f33f5028574209ca8c51dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling compiletest_rs v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking tester v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking shred v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling component_group_derive v2.0.0
[INFO] [stderr]     Checking specs v0.15.1
[INFO] [stderr]     Checking component_group v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.91s
[INFO] running `Command { std: "docker" "inspect" "f3ce1e8f83b16cba1b847dd0e3829dbfac161c4175f33f5028574209ca8c51dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ce1e8f83b16cba1b847dd0e3829dbfac161c4175f33f5028574209ca8c51dd", kill_on_drop: false }`
[INFO] [stdout] f3ce1e8f83b16cba1b847dd0e3829dbfac161c4175f33f5028574209ca8c51dd