[INFO] cloning repository https://github.com/facebookincubator/fastmod
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/facebookincubator/fastmod" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffacebookincubator%2Ffastmod", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffacebookincubator%2Ffastmod'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4acf65da90a188e734cd6729d03152cc84bfc08
[INFO] checking facebookincubator/fastmod against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffacebookincubator%2Ffastmod" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/facebookincubator/fastmod 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/facebookincubator/fastmod
[INFO] finished tweaking git repo https://github.com/facebookincubator/fastmod
[INFO] tweaked toml for git repo https://github.com/facebookincubator/fastmod written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/facebookincubator/fastmod 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 crossterm_winapi v0.6.1
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.7
[INFO] [stderr]   Downloaded ntapi v0.3.4
[INFO] [stderr]   Downloaded crossterm v0.17.7
[INFO] [stderr]   Downloaded syn v1.0.44
[INFO] [stderr]   Downloaded grep-cli v0.1.5
[INFO] [stderr]   Downloaded mio v0.7.3
[INFO] [stderr]   Downloaded grep-searcher v0.1.7
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded grep-matcher v0.1.4
[INFO] [stderr]   Downloaded grep v0.2.7
[INFO] [stderr]   Downloaded rprompt v1.0.5
[INFO] [stderr]   Downloaded ignore v0.4.16
[INFO] [stderr]   Downloaded grep-printer v0.1.5
[INFO] [stderr]   Downloaded grep-regex v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56548c39603b609f620898c49185d042d8b020907c2ee2e9bea220b5de167935
[INFO] running `Command { std: "docker" "start" "-a" "56548c39603b609f620898c49185d042d8b020907c2ee2e9bea220b5de167935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56548c39603b609f620898c49185d042d8b020907c2ee2e9bea220b5de167935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56548c39603b609f620898c49185d042d8b020907c2ee2e9bea220b5de167935", kill_on_drop: false }`
[INFO] [stdout] 56548c39603b609f620898c49185d042d8b020907c2ee2e9bea220b5de167935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2f3fe26f7db1c11d0a71c7960a3ae86f38cb123daf215316fc92d4e04cad2acb
[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" "2f3fe26f7db1c11d0a71c7960a3ae86f38cb123daf215316fc92d4e04cad2acb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking encoding_rs v0.8.24
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking grep-matcher v0.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.7
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking grep-regex v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking grep-cli v0.1.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking grep-printer v0.1.5
[INFO] [stderr]     Checking grep v0.2.7
[INFO] [stderr]     Checking fastmod v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.66s
[INFO] running `Command { std: "docker" "inspect" "2f3fe26f7db1c11d0a71c7960a3ae86f38cb123daf215316fc92d4e04cad2acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3fe26f7db1c11d0a71c7960a3ae86f38cb123daf215316fc92d4e04cad2acb", kill_on_drop: false }`
[INFO] [stdout] 2f3fe26f7db1c11d0a71c7960a3ae86f38cb123daf215316fc92d4e04cad2acb