[INFO] cloning repository https://github.com/TheGhostHuCodes/rust-error-handling-case-study [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheGhostHuCodes/rust-error-handling-case-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheGhostHuCodes%2Frust-error-handling-case-study", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheGhostHuCodes%2Frust-error-handling-case-study'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3c3a1aeaafe9abcb860c67f90c87f658b297be17 [INFO] checking TheGhostHuCodes/rust-error-handling-case-study against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheGhostHuCodes%2Frust-error-handling-case-study" "/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/TheGhostHuCodes/rust-error-handling-case-study on toolchain 2ad5292aea6328113b55968b4322528d48261316 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheGhostHuCodes/rust-error-handling-case-study [INFO] finished tweaking git repo https://github.com/TheGhostHuCodes/rust-error-handling-case-study [INFO] tweaked toml for git repo https://github.com/TheGhostHuCodes/rust-error-handling-case-study written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/TheGhostHuCodes/rust-error-handling-case-study already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn v1.0.29 [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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d9a9ff4da19f6ebf982154fb4a80465a49c4b797dd0717787ad1d5461ca2c10 [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" "7d9a9ff4da19f6ebf982154fb4a80465a49c4b797dd0717787ad1d5461ca2c10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d9a9ff4da19f6ebf982154fb4a80465a49c4b797dd0717787ad1d5461ca2c10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d9a9ff4da19f6ebf982154fb4a80465a49c4b797dd0717787ad1d5461ca2c10", kill_on_drop: false }` [INFO] [stdout] 7d9a9ff4da19f6ebf982154fb4a80465a49c4b797dd0717787ad1d5461ca2c10 [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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b009dd0cf58d64bcfafbbdde2a67767d85f3539ac64276948e351f692a419a6 [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" "0b009dd0cf58d64bcfafbbdde2a67767d85f3539ac64276948e351f692a419a6", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.29 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking strsim v0.9.3 [INFO] [stderr] Compiling proc-macro2 v1.0.17 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Compiling serde_derive v1.0.111 [INFO] [stderr] Checking serde v1.0.111 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking rust-error-handling-case-study v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 47.06s [INFO] running `Command { std: "docker" "inspect" "0b009dd0cf58d64bcfafbbdde2a67767d85f3539ac64276948e351f692a419a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b009dd0cf58d64bcfafbbdde2a67767d85f3539ac64276948e351f692a419a6", kill_on_drop: false }` [INFO] [stdout] 0b009dd0cf58d64bcfafbbdde2a67767d85f3539ac64276948e351f692a419a6