[INFO] fetching crate unf 2.1.0...
[INFO] checking unf-2.1.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate unf 2.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate unf 2.1.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unf 2.1.0
[INFO] finished tweaking crates.io crate unf 2.1.0
[INFO] tweaked toml for crates.io crate unf 2.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate unf 2.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot v0.4.8
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.0
[INFO] [stderr]   Downloaded rustyline v6.2.0
[INFO] [stderr]   Downloaded dirs-next v1.0.1
[INFO] [stderr]   Downloaded rsfs v0.4.1
[INFO] [stderr]   Downloaded deunicode v1.1.1
[INFO] [stderr]   Downloaded promptly v0.3.0
[INFO] [stderr]   Downloaded predicates v1.0.5
[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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aa97439e0836d453868795f0fa1dfe42864c50d4ba2203fa8390d0cf2339d2d
[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" "7aa97439e0836d453868795f0fa1dfe42864c50d4ba2203fa8390d0cf2339d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa97439e0836d453868795f0fa1dfe42864c50d4ba2203fa8390d0cf2339d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa97439e0836d453868795f0fa1dfe42864c50d4ba2203fa8390d0cf2339d2d", kill_on_drop: false }`
[INFO] [stdout] 7aa97439e0836d453868795f0fa1dfe42864c50d4ba2203fa8390d0cf2339d2d
[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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 018425ec01af651fa844e271d975c27595897cc4f48328c63a2d2e422bd29ee2
[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" "018425ec01af651fa844e271d975c27595897cc4f48328c63a2d2e422bd29ee2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking deunicode v1.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking rsfs v0.4.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking promptly v0.3.0
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking unf v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.64s
[INFO] running `Command { std: "docker" "inspect" "018425ec01af651fa844e271d975c27595897cc4f48328c63a2d2e422bd29ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "018425ec01af651fa844e271d975c27595897cc4f48328c63a2d2e422bd29ee2", kill_on_drop: false }`
[INFO] [stdout] 018425ec01af651fa844e271d975c27595897cc4f48328c63a2d2e422bd29ee2