[INFO] cloning repository https://github.com/DNABigBoss/rustlings-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DNABigBoss/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDNABigBoss%2Frustlings-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDNABigBoss%2Frustlings-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7f2d6c3f5bea0ff0dbecf87f4e4c6d3282cebe1
[INFO] checking DNABigBoss/rustlings-solutions against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDNABigBoss%2Frustlings-solutions" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DNABigBoss/rustlings-solutions on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DNABigBoss/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/DNABigBoss/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/DNABigBoss/rustlings-solutions written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DNABigBoss/rustlings-solutions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clicolors-control v0.2.0
[INFO] [stderr]   Downloaded console v0.6.2
[INFO] [stderr]   Downloaded escargot v0.4.0
[INFO] [stderr]   Downloaded console v0.7.5
[INFO] [stderr]   Downloaded clicolors-control v1.0.0
[INFO] [stderr]   Downloaded onig v4.3.2
[INFO] [stderr]   Downloaded encode_unicode v0.3.5
[INFO] [stderr]   Downloaded indicatif v0.9.0
[INFO] [stderr]   Downloaded regex v1.1.5
[INFO] [stderr]   Downloaded assert_cmd v0.11.1
[INFO] [stderr]   Downloaded onig_sys v69.1.0
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded plist v0.4.1
[INFO] [stderr]   Downloaded notify v4.0.10
[INFO] [stderr]   Downloaded predicates v1.0.0
[INFO] [stderr]   Downloaded syntect v3.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2be08fd4f0a7490f63e165c284ff2dad0c91899d983706a8df174e786309148e
[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" "2be08fd4f0a7490f63e165c284ff2dad0c91899d983706a8df174e786309148e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2be08fd4f0a7490f63e165c284ff2dad0c91899d983706a8df174e786309148e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be08fd4f0a7490f63e165c284ff2dad0c91899d983706a8df174e786309148e", kill_on_drop: false }`
[INFO] [stdout] 2be08fd4f0a7490f63e165c284ff2dad0c91899d983706a8df174e786309148e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5be993e66f8169f00caec4291e578fba856c3b8bac8f4c8cdb21efee96a79383
[INFO] running `Command { std: "docker" "start" "-a" "5be993e66f8169f00caec4291e578fba856c3b8bac8f4c8cdb21efee96a79383", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]     Checking predicates v1.0.0
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking notify v4.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]     Checking onig v4.3.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking bincode v1.1.2
[INFO] [stderr]     Checking plist v0.4.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking rustlings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.20s
[INFO] running `Command { std: "docker" "inspect" "5be993e66f8169f00caec4291e578fba856c3b8bac8f4c8cdb21efee96a79383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be993e66f8169f00caec4291e578fba856c3b8bac8f4c8cdb21efee96a79383", kill_on_drop: false }`
[INFO] [stdout] 5be993e66f8169f00caec4291e578fba856c3b8bac8f4c8cdb21efee96a79383