[INFO] cloning repository https://github.com/njskalski/bug-report-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/njskalski/bug-report-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjskalski%2Fbug-report-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjskalski%2Fbug-report-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffdf621b27c1efc3b45dce072641f8686ccdc65f
[INFO] checking njskalski/bug-report-1 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjskalski%2Fbug-report-1" "/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/njskalski/bug-report-1 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/njskalski/bug-report-1
[INFO] finished tweaking git repo https://github.com/njskalski/bug-report-1
[INFO] tweaked toml for git repo https://github.com/njskalski/bug-report-1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/njskalski/bug-report-1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fccba79640a58d7e9e421bb3679234c784ce07764579c1ca65bf8581d0a89d3e
[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" "fccba79640a58d7e9e421bb3679234c784ce07764579c1ca65bf8581d0a89d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fccba79640a58d7e9e421bb3679234c784ce07764579c1ca65bf8581d0a89d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fccba79640a58d7e9e421bb3679234c784ce07764579c1ca65bf8581d0a89d3e", kill_on_drop: false }`
[INFO] [stdout] fccba79640a58d7e9e421bb3679234c784ce07764579c1ca65bf8581d0a89d3e
[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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3600fffd0fb85885195002685dd5f677c238946a435d525a2739c2d6378b8620
[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" "3600fffd0fb85885195002685dd5f677c238946a435d525a2739c2d6378b8620", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking array-macro v1.0.2
[INFO] [stderr]     Checking serde v1.0.54
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking reexport-proc-macro v1.0.2
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking enumset v0.3.3
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.9
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking stderrlog v0.4.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling enum-map-derive v0.2.5
[INFO] [stderr]     Checking enum-map v0.2.29
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking cursive v0.8.1
[INFO] [stderr]     Checking bug1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.66s
[INFO] running `Command { std: "docker" "inspect" "3600fffd0fb85885195002685dd5f677c238946a435d525a2739c2d6378b8620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3600fffd0fb85885195002685dd5f677c238946a435d525a2739c2d6378b8620", kill_on_drop: false }`
[INFO] [stdout] 3600fffd0fb85885195002685dd5f677c238946a435d525a2739c2d6378b8620