[INFO] cloning repository https://github.com/alekratz/markov-bot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alekratz/markov-bot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Fmarkov-bot-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Fmarkov-bot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 574d24562d7c99a2dc6c592657517b3bb0fb46fe
[INFO] checking alekratz/markov-bot-rs against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Fmarkov-bot-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alekratz/markov-bot-rs on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alekratz/markov-bot-rs
[INFO] finished tweaking git repo https://github.com/alekratz/markov-bot-rs
[INFO] tweaked toml for git repo https://github.com/alekratz/markov-bot-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/alekratz/markov-bot-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/alekratz/markov-chain-rs.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/alekratz/markov-chain-rs.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.117
[INFO] [stderr]   Downloaded encoding-index-korean v1.20141219.5
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded encoding_index_tests v0.1.4
[INFO] [stderr]   Downloaded encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] [stderr]   Downloaded encoding v0.2.33
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded cc v1.0.61
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded ctrlc v3.1.7
[INFO] [stderr]   Downloaded chrono v0.4.19
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded irc v0.11.8
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded nix v0.18.0
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded syn v1.0.48
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded encoding-index-japanese v1.20141219.5
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded maplit v0.1.6
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded serde_bytes v0.10.5
[INFO] [stderr]   Downloaded serde v1.0.117
[INFO] [stderr]   Downloaded serde_cbor v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 158a6f7acd9df038520285bb2459c924ca7660f1b2b72c8336b3a1ea0e0472aa
[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" "158a6f7acd9df038520285bb2459c924ca7660f1b2b72c8336b3a1ea0e0472aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158a6f7acd9df038520285bb2459c924ca7660f1b2b72c8336b3a1ea0e0472aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158a6f7acd9df038520285bb2459c924ca7660f1b2b72c8336b3a1ea0e0472aa", kill_on_drop: false }`
[INFO] [stdout] 158a6f7acd9df038520285bb2459c924ca7660f1b2b72c8336b3a1ea0e0472aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41bf89b98c36dc82f11839984248d440a5cd8eb71b15c8285d0e01dec408453d
[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" "41bf89b98c36dc82f11839984248d440a5cd8eb71b15c8285d0e01dec408453d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking maplit v0.1.6
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking irc v0.11.8
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking serde_cbor v0.6.1
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking markov-chain v0.1.1 (https://github.com/alekratz/markov-chain-rs.git#94d0f01b)
[INFO] [stderr]     Checking markov-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.77s
[INFO] running `Command { std: "docker" "inspect" "41bf89b98c36dc82f11839984248d440a5cd8eb71b15c8285d0e01dec408453d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bf89b98c36dc82f11839984248d440a5cd8eb71b15c8285d0e01dec408453d", kill_on_drop: false }`
[INFO] [stdout] 41bf89b98c36dc82f11839984248d440a5cd8eb71b15c8285d0e01dec408453d