[INFO] fetching crate du2 0.2.1...
[INFO] checking du2-0.2.1 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate du2 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate du2 0.2.1 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate du2 0.2.1
[INFO] finished tweaking crates.io crate du2 0.2.1
[INFO] tweaked toml for crates.io crate du2 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate du2 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded num-format v0.4.0
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", 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] b641191129675a8b10a1a61acd37e81258a00fe5a871bb2d9bbb69a13a9df21c
[INFO] running `Command { std: "docker" "start" "-a" "b641191129675a8b10a1a61acd37e81258a00fe5a871bb2d9bbb69a13a9df21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b641191129675a8b10a1a61acd37e81258a00fe5a871bb2d9bbb69a13a9df21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b641191129675a8b10a1a61acd37e81258a00fe5a871bb2d9bbb69a13a9df21c", kill_on_drop: false }`
[INFO] [stdout] b641191129675a8b10a1a61acd37e81258a00fe5a871bb2d9bbb69a13a9df21c
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 344a9f4888d128d898bb406b9d607e42376544429fa541eba5266be2ab6c7574
[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" "344a9f4888d128d898bb406b9d607e42376544429fa541eba5266be2ab6c7574", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking cpu-time v1.0.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking du2 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.00s
[INFO] running `Command { std: "docker" "inspect" "344a9f4888d128d898bb406b9d607e42376544429fa541eba5266be2ab6c7574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344a9f4888d128d898bb406b9d607e42376544429fa541eba5266be2ab6c7574", kill_on_drop: false }`
[INFO] [stdout] 344a9f4888d128d898bb406b9d607e42376544429fa541eba5266be2ab6c7574