[INFO] cloning repository https://github.com/jwmurray/mstrings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jwmurray/mstrings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Fmstrings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Fmstrings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0c28f38f34dbfbc3a6405e1a8650a6d4eb465cf
[INFO] checking jwmurray/mstrings against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Fmstrings" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jwmurray/mstrings on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jwmurray/mstrings
[INFO] finished tweaking git repo https://github.com/jwmurray/mstrings
[INFO] tweaked toml for git repo https://github.com/jwmurray/mstrings written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jwmurray/mstrings already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4fe8482e462e722701f54aab473557dd477b8f285cdc7dc3005b7b23b2af6ca
[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" "c4fe8482e462e722701f54aab473557dd477b8f285cdc7dc3005b7b23b2af6ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4fe8482e462e722701f54aab473557dd477b8f285cdc7dc3005b7b23b2af6ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fe8482e462e722701f54aab473557dd477b8f285cdc7dc3005b7b23b2af6ca", kill_on_drop: false }`
[INFO] [stdout] c4fe8482e462e722701f54aab473557dd477b8f285cdc7dc3005b7b23b2af6ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d86fa679932a893c026a1b57a67cf95d5f1649d49f4e4f872f44ff961c103e9
[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" "8d86fa679932a893c026a1b57a67cf95d5f1649d49f4e4f872f44ff961c103e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking string_cache_shared v0.3.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.6.2
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]    Compiling html5ever v0.21.0
[INFO] [stderr]     Checking dissolve v0.2.2
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.94s
[INFO] running `Command { std: "docker" "inspect" "8d86fa679932a893c026a1b57a67cf95d5f1649d49f4e4f872f44ff961c103e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d86fa679932a893c026a1b57a67cf95d5f1649d49f4e4f872f44ff961c103e9", kill_on_drop: false }`
[INFO] [stdout] 8d86fa679932a893c026a1b57a67cf95d5f1649d49f4e4f872f44ff961c103e9