[INFO] fetching crate flatzinc 0.3.14...
[INFO] checking flatzinc-0.3.14 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate flatzinc 0.3.14 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate flatzinc 0.3.14 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 flatzinc 0.3.14
[INFO] finished tweaking crates.io crate flatzinc 0.3.14
[INFO] tweaked toml for crates.io crate flatzinc 0.3.14 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate flatzinc 0.3.14 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded anyhow v1.0.31
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded thread_local v0.3.4
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded termion v1.5.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded proc-macro-error v1.0.2
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.2
[INFO] [stderr]   Downloaded stderrlog v0.4.3
[INFO] [stderr]   Downloaded syn v1.0.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93ae99ca2596af47bf234e834bc80450203e47d17f39fb9ba036d03678cc2797
[INFO] running `Command { std: "docker" "start" "-a" "93ae99ca2596af47bf234e834bc80450203e47d17f39fb9ba036d03678cc2797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ae99ca2596af47bf234e834bc80450203e47d17f39fb9ba036d03678cc2797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ae99ca2596af47bf234e834bc80450203e47d17f39fb9ba036d03678cc2797", kill_on_drop: false }`
[INFO] [stdout] 93ae99ca2596af47bf234e834bc80450203e47d17f39fb9ba036d03678cc2797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ce9fb7284e3bdf70cda14daae75e5a25f9b442fc1c478200d139092608f36a5c
[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" "ce9fb7284e3bdf70cda14daae75e5a25f9b442fc1c478200d139092608f36a5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking flatzinc v0.3.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.30s
[INFO] running `Command { std: "docker" "inspect" "ce9fb7284e3bdf70cda14daae75e5a25f9b442fc1c478200d139092608f36a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9fb7284e3bdf70cda14daae75e5a25f9b442fc1c478200d139092608f36a5c", kill_on_drop: false }`
[INFO] [stdout] ce9fb7284e3bdf70cda14daae75e5a25f9b442fc1c478200d139092608f36a5c