[INFO] cloning repository https://github.com/archer884/fun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/fun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Ffun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Ffun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 386c9164796fa518e949e7acc9542d273c377247
[INFO] checking archer884/fun against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Ffun" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/fun 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/archer884/fun
[INFO] finished tweaking git repo https://github.com/archer884/fun
[INFO] tweaked toml for git repo https://github.com/archer884/fun written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/fun 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] error: the lock file /workspace/builds/worker-2/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[INFO] the lockfile is outdated, regenerating it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" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 554a7c3fdb1b9142fd8bd121c80f4bba1a894e6f8a7ffaf7e60836d8aa464acb
[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" "554a7c3fdb1b9142fd8bd121c80f4bba1a894e6f8a7ffaf7e60836d8aa464acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554a7c3fdb1b9142fd8bd121c80f4bba1a894e6f8a7ffaf7e60836d8aa464acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554a7c3fdb1b9142fd8bd121c80f4bba1a894e6f8a7ffaf7e60836d8aa464acb", kill_on_drop: false }`
[INFO] [stdout] 554a7c3fdb1b9142fd8bd121c80f4bba1a894e6f8a7ffaf7e60836d8aa464acb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e5b5601c5df6dd3d2a312a37a4e73b8be8e2961110a102cc4b7f1f0548a39038
[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" "e5b5601c5df6dd3d2a312a37a4e73b8be8e2961110a102cc4b7f1f0548a39038", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling tokio v1.1.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking hyper v0.14.2
[INFO] [stderr]     Checking fun v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `fun`
[INFO] [stdout] error: expected identifier, found `"rustc-serialize"`
[INFO] [stdout]   --> src/lib.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate "rustc-serialize" as rustc_serialize;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected identifier, found `"rustc-serialize"`
[INFO] [stdout]   --> src/lib.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate "rustc-serialize" as rustc_serialize;
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e5b5601c5df6dd3d2a312a37a4e73b8be8e2961110a102cc4b7f1f0548a39038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b5601c5df6dd3d2a312a37a4e73b8be8e2961110a102cc4b7f1f0548a39038", kill_on_drop: false }`
[INFO] [stdout] e5b5601c5df6dd3d2a312a37a4e73b8be8e2961110a102cc4b7f1f0548a39038