[INFO] fetching crate structopt-flags 0.3.6...
[INFO] checking structopt-flags-0.3.6 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate structopt-flags 0.3.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate structopt-flags 0.3.6 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structopt-flags 0.3.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate structopt-flags 0.3.6
[INFO] tweaked toml for crates.io crate structopt-flags 0.3.6 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate structopt-flags 0.3.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76c790a39fac769f186c8a94d7dc2ff5f9dd39cd2a49738c3dd7ee1c94393d36
[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" "76c790a39fac769f186c8a94d7dc2ff5f9dd39cd2a49738c3dd7ee1c94393d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76c790a39fac769f186c8a94d7dc2ff5f9dd39cd2a49738c3dd7ee1c94393d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c790a39fac769f186c8a94d7dc2ff5f9dd39cd2a49738c3dd7ee1c94393d36", kill_on_drop: false }`
[INFO] [stdout] 76c790a39fac769f186c8a94d7dc2ff5f9dd39cd2a49738c3dd7ee1c94393d36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6ff59d8a5a24ed8fe8a8c0dd8709bcc505868af316f784da6266dd47650a94b
[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" "c6ff59d8a5a24ed8fe8a8c0dd8709bcc505868af316f784da6266dd47650a94b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking cargo_metadata v0.6.4
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking escargot v0.5.0
[INFO] [stderr]     Checking skeptic v0.13.4
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]    Compiling structopt-flags v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "c6ff59d8a5a24ed8fe8a8c0dd8709bcc505868af316f784da6266dd47650a94b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ff59d8a5a24ed8fe8a8c0dd8709bcc505868af316f784da6266dd47650a94b", kill_on_drop: false }`
[INFO] [stdout] c6ff59d8a5a24ed8fe8a8c0dd8709bcc505868af316f784da6266dd47650a94b