[INFO] fetching crate gib 0.2.4...
[INFO] checking gib-0.2.4 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate gib 0.2.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate gib 0.2.4 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gib 0.2.4
[INFO] finished tweaking crates.io crate gib 0.2.4
[INFO] tweaked toml for crates.io crate gib 0.2.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate gib 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9ba04bf4c7f1cadd66417e53bbb491a61bc08314cf09a45b9db945b6ea276db
[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" "c9ba04bf4c7f1cadd66417e53bbb491a61bc08314cf09a45b9db945b6ea276db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9ba04bf4c7f1cadd66417e53bbb491a61bc08314cf09a45b9db945b6ea276db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ba04bf4c7f1cadd66417e53bbb491a61bc08314cf09a45b9db945b6ea276db", kill_on_drop: false }`
[INFO] [stdout] c9ba04bf4c7f1cadd66417e53bbb491a61bc08314cf09a45b9db945b6ea276db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] 6aca8cac57b0fab1e6388175fb9cd2a4b34dfe1ca5339df690955f5cea815090
[INFO] running `Command { std: "docker" "start" "-a" "6aca8cac57b0fab1e6388175fb9cd2a4b34dfe1ca5339df690955f5cea815090", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling gib v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking globwalk v0.7.3
[INFO] [stderr]     Checking assert_fs v1.0.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]     Checking structopt v0.3.12
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "6aca8cac57b0fab1e6388175fb9cd2a4b34dfe1ca5339df690955f5cea815090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aca8cac57b0fab1e6388175fb9cd2a4b34dfe1ca5339df690955f5cea815090", kill_on_drop: false }`
[INFO] [stdout] 6aca8cac57b0fab1e6388175fb9cd2a4b34dfe1ca5339df690955f5cea815090