[INFO] fetching crate icbc 0.2.3...
[INFO] checking icbc-0.2.3 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate icbc 0.2.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate icbc 0.2.3 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate icbc 0.2.3
[INFO] finished tweaking crates.io crate icbc 0.2.3
[INFO] tweaked toml for crates.io crate icbc 0.2.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate icbc 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.12
[INFO] [stderr]   Downloaded tui v0.8.0
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded backtrace v0.3.46
[INFO] [stderr]   Downloaded syn v1.0.19
[INFO] [stderr]   Downloaded cassowary v0.3.0
[INFO] [stderr]   Downloaded icb v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff3ed79f376111f636a7d97a5de8946b95e37170762c37c68a04675b7f3b6549
[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" "ff3ed79f376111f636a7d97a5de8946b95e37170762c37c68a04675b7f3b6549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff3ed79f376111f636a7d97a5de8946b95e37170762c37c68a04675b7f3b6549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3ed79f376111f636a7d97a5de8946b95e37170762c37c68a04675b7f3b6549", kill_on_drop: false }`
[INFO] [stdout] ff3ed79f376111f636a7d97a5de8946b95e37170762c37c68a04675b7f3b6549
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c615ee7e372cbb91d5cfcefa867d4aa7aaf2a9afdc0c4475f7d36d652638236b
[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" "c615ee7e372cbb91d5cfcefa867d4aa7aaf2a9afdc0c4475f7d36d652638236b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking tui v0.8.0
[INFO] [stderr]     Checking icb v0.2.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking icbc v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.06s
[INFO] running `Command { std: "docker" "inspect" "c615ee7e372cbb91d5cfcefa867d4aa7aaf2a9afdc0c4475f7d36d652638236b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c615ee7e372cbb91d5cfcefa867d4aa7aaf2a9afdc0c4475f7d36d652638236b", kill_on_drop: false }`
[INFO] [stdout] c615ee7e372cbb91d5cfcefa867d4aa7aaf2a9afdc0c4475f7d36d652638236b