[INFO] fetching crate cpp_std 0.1.1...
[INFO] checking cpp_std-0.1.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate cpp_std 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cpp_std 0.1.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpp_std 0.1.1
[INFO] finished tweaking crates.io crate cpp_std 0.1.1
[INFO] tweaked toml for crates.io crate cpp_std 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ritual_build v0.3.0
[INFO] [stderr]   Downloaded ritual_common v0.3.0
[INFO] [stderr]   Downloaded cpp_core v0.5.1
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 685c703fec9132b392a98a45f82b1b7e1e80da97d1e466212583f803a9135b7b
[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" "685c703fec9132b392a98a45f82b1b7e1e80da97d1e466212583f803a9135b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "685c703fec9132b392a98a45f82b1b7e1e80da97d1e466212583f803a9135b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "685c703fec9132b392a98a45f82b1b7e1e80da97d1e466212583f803a9135b7b", kill_on_drop: false }`
[INFO] [stdout] 685c703fec9132b392a98a45f82b1b7e1e80da97d1e466212583f803a9135b7b
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe7a45ea2e4c6528541dd76be64c14a8c8b6c3d47a8300ef300c9751e66b8c0f
[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" "fe7a45ea2e4c6528541dd76be64c14a8c8b6c3d47a8300ef300c9751e66b8c0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling dunce v1.0.1
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking cpp_core v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling ritual_common v0.3.0
[INFO] [stderr]    Compiling ritual_build v0.3.0
[INFO] [stderr]    Compiling cpp_std v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "fe7a45ea2e4c6528541dd76be64c14a8c8b6c3d47a8300ef300c9751e66b8c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe7a45ea2e4c6528541dd76be64c14a8c8b6c3d47a8300ef300c9751e66b8c0f", kill_on_drop: false }`
[INFO] [stdout] fe7a45ea2e4c6528541dd76be64c14a8c8b6c3d47a8300ef300c9751e66b8c0f