[INFO] cloning repository https://github.com/alexcrichton/bors2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexcrichton/bors2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fbors2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fbors2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be88eac218c252a5df846f5bf6ee7a2679b02a76
[INFO] checking alexcrichton/bors2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fbors2" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexcrichton/bors2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexcrichton/bors2
[INFO] removed path dependency migrate from git repo https://github.com/alexcrichton/bors2
[INFO] finished tweaking git repo https://github.com/alexcrichton/bors2
[INFO] tweaked toml for git repo https://github.com/alexcrichton/bors2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alexcrichton/bors2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (migrate) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (migrate) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver v0.5.1
[INFO] [stderr]   Downloaded fallible-iterator v0.1.6
[INFO] [stderr]   Downloaded conduit-log-requests v0.8.0
[INFO] [stderr]   Downloaded openssl v0.8.3
[INFO] [stderr]   Downloaded phf v0.7.15
[INFO] [stderr]   Downloaded oauth2 v2.0.0
[INFO] [stderr]   Downloaded postgres-protocol v0.1.1
[INFO] [stderr]   Downloaded pest v0.3.3
[INFO] [stderr]   Downloaded phf_shared v0.7.15
[INFO] [stderr]   Downloaded base64 v0.2.1
[INFO] [stderr]   Downloaded curl-sys v0.4.36+curl-7.71.1
[INFO] [stderr]   Downloaded conduit-conditional-get v0.8.0
[INFO] [stderr]   Downloaded conduit-git-http-backend v0.8.0
[INFO] [stderr]   Downloaded conduit-cookie v0.8.5
[INFO] [stderr]   Downloaded r2d2 v0.7.4
[INFO] [stderr]   Downloaded curl v0.3.11
[INFO] [stderr]   Downloaded curl-sys v0.2.5
[INFO] [stderr]   Downloaded conduit-router v0.8.0
[INFO] [stderr]   Downloaded civet v0.9.1
[INFO] [stderr]   Downloaded conduit-static v0.8.1
[INFO] [stderr]   Downloaded postgres v0.12.0
[INFO] [stderr]   Downloaded handlebars v0.21.1
[INFO] [stderr]   Downloaded migrate v0.1.0
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.1.0
[INFO] [stderr]   Downloaded conduit-middleware v0.8.1
[INFO] [stderr]   Downloaded conduit v0.8.1
[INFO] [stderr]   Downloaded curl v0.4.33
[INFO] [stderr]   Downloaded r2d2_postgres v0.11.1
[INFO] [stderr]   Downloaded md5 v0.2.1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ddccfd6f760e619f8db9c523d087dd6c23334de23ba77a535d0fb507dc05fa4
[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" "2ddccfd6f760e619f8db9c523d087dd6c23334de23ba77a535d0fb507dc05fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ddccfd6f760e619f8db9c523d087dd6c23334de23ba77a535d0fb507dc05fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ddccfd6f760e619f8db9c523d087dd6c23334de23ba77a535d0fb507dc05fa4", kill_on_drop: false }`
[INFO] [stdout] 2ddccfd6f760e619f8db9c523d087dd6c23334de23ba77a535d0fb507dc05fa4
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad8e3091a3538c9dfd30e27cd92f9ca4d8601e699a68b37c3cc0e7b279aad7c
[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" "3ad8e3091a3538c9dfd30e27cd92f9ca4d8601e699a68b37c3cc0e7b279aad7c", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (migrate) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] error: multiple packages link to native library `curl`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `curl-sys v0.2.5`
[INFO] [stderr]     ... which is depended on by `curl v0.3.11`
[INFO] [stderr]     ... which is depended on by `bors2 v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `curl`
[INFO] [stderr] 
[INFO] [stderr] package `curl-sys v0.4.36+curl-7.71.1`
[INFO] [stderr]     ... which is depended on by `curl v0.4.33`
[INFO] [stderr]     ... which is depended on by `oauth2 v2.0.0`
[INFO] [stderr]     ... which is depended on by `bors2 v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `curl`
[INFO] running `Command { std: "docker" "inspect" "3ad8e3091a3538c9dfd30e27cd92f9ca4d8601e699a68b37c3cc0e7b279aad7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad8e3091a3538c9dfd30e27cd92f9ca4d8601e699a68b37c3cc0e7b279aad7c", kill_on_drop: false }`
[INFO] [stdout] 3ad8e3091a3538c9dfd30e27cd92f9ca4d8601e699a68b37c3cc0e7b279aad7c