[INFO] fetching crate xargo 0.3.22...
[INFO] checking xargo-0.3.22 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate xargo 0.3.22 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate xargo 0.3.22 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xargo 0.3.22
[INFO] finished tweaking crates.io crate xargo 0.3.22
[INFO] tweaked toml for crates.io crate xargo 0.3.22 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate xargo 0.3.22 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc_version v0.2.3
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded instant v0.1.6
[INFO] [stderr]   Downloaded lock_api v0.4.1
[INFO] [stderr]   Downloaded cloudabi v0.1.0
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded rust-argon2 v0.7.0
[INFO] [stderr]   Downloaded blake2b_simd v0.5.10
[INFO] [stderr]   Downloaded redox_users v0.3.4
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded base64 v0.11.0
[INFO] [stderr]   Downloaded serde v1.0.114
[INFO] [stderr]   Downloaded constant_time_eq v0.1.5
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded libc v0.2.74
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded smallvec v1.4.1
[INFO] [stderr]   Downloaded dirs v3.0.1
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded parking_lot v0.11.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded miniz_oxide v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+075992eda207e1647b699c8c8ada67b32ce7b115" "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] acc3093b1b1305fb262bf9efb27cb92e47690935edf9fb5d951f25727a827fc9
[INFO] running `Command { std: "docker" "start" "-a" "acc3093b1b1305fb262bf9efb27cb92e47690935edf9fb5d951f25727a827fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acc3093b1b1305fb262bf9efb27cb92e47690935edf9fb5d951f25727a827fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc3093b1b1305fb262bf9efb27cb92e47690935edf9fb5d951f25727a827fc9", kill_on_drop: false }`
[INFO] [stdout] acc3093b1b1305fb262bf9efb27cb92e47690935edf9fb5d951f25727a827fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+075992eda207e1647b699c8c8ada67b32ce7b115" "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] 96ebeed40f14649e318ba4121f88d310d9405a24c8784763b2710d022d716372
[INFO] running `Command { std: "docker" "start" "-a" "96ebeed40f14649e318ba4121f88d310d9405a24c8784763b2710d022d716372", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling xargo v0.3.22 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.28s
[INFO] running `Command { std: "docker" "inspect" "96ebeed40f14649e318ba4121f88d310d9405a24c8784763b2710d022d716372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ebeed40f14649e318ba4121f88d310d9405a24c8784763b2710d022d716372", kill_on_drop: false }`
[INFO] [stdout] 96ebeed40f14649e318ba4121f88d310d9405a24c8784763b2710d022d716372