[INFO] cloning repository https://github.com/heca-project/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heca-project/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheca-project%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheca-project%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bed559e9a0589ba1f28abebfc327e7718065f85f
[INFO] checking heca-project/playground against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheca-project%2Fplayground" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heca-project/playground on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heca-project/playground
[INFO] finished tweaking git repo https://github.com/heca-project/playground
[INFO] tweaked toml for git repo https://github.com/heca-project/playground written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/heca-project/playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates v1.0.2
[INFO] [stderr]   Downloaded heca-lib v1.3.1
[INFO] [stderr]   Downloaded cpuprofiler v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 753b700764aad1cbf29f70e7b5ec633de26146b4b7f4f9155c2e368976f4f1bb
[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" "753b700764aad1cbf29f70e7b5ec633de26146b4b7f4f9155c2e368976f4f1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "753b700764aad1cbf29f70e7b5ec633de26146b4b7f4f9155c2e368976f4f1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753b700764aad1cbf29f70e7b5ec633de26146b4b7f4f9155c2e368976f4f1bb", kill_on_drop: false }`
[INFO] [stdout] 753b700764aad1cbf29f70e7b5ec633de26146b4b7f4f9155c2e368976f4f1bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 292aabeffe9d55f576e11c5306c3a0ff1e4382858f19b5ed2463809a0ece874b
[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" "292aabeffe9d55f576e11c5306c3a0ff1e4382858f19b5ed2463809a0ece874b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling cpuprofiler v0.0.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking predicates v1.0.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking heca-lib v1.3.1
[INFO] [stderr]     Checking assert_cmd v0.12.0
[INFO] [stderr]     Checking heca v1.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.97s
[INFO] running `Command { std: "docker" "inspect" "292aabeffe9d55f576e11c5306c3a0ff1e4382858f19b5ed2463809a0ece874b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292aabeffe9d55f576e11c5306c3a0ff1e4382858f19b5ed2463809a0ece874b", kill_on_drop: false }`
[INFO] [stdout] 292aabeffe9d55f576e11c5306c3a0ff1e4382858f19b5ed2463809a0ece874b