[INFO] cloning repository https://github.com/jiegec/classroom-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jiegec/classroom-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12708a1c0ed2f96603da997876a4b3a4a287c51d
[INFO] checking jiegec/classroom-helper against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiegec%2Fclassroom-helper" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiegec/classroom-helper on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jiegec/classroom-helper
[INFO] finished tweaking git repo https://github.com/jiegec/classroom-helper
[INFO] tweaked toml for git repo https://github.com/jiegec/classroom-helper written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jiegec/classroom-helper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5b219ab6cf0aa84a3f132808026cfa7b2c86ff75714d2f92608a31cb172da77
[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" "b5b219ab6cf0aa84a3f132808026cfa7b2c86ff75714d2f92608a31cb172da77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5b219ab6cf0aa84a3f132808026cfa7b2c86ff75714d2f92608a31cb172da77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b219ab6cf0aa84a3f132808026cfa7b2c86ff75714d2f92608a31cb172da77", kill_on_drop: false }`
[INFO] [stdout] b5b219ab6cf0aa84a3f132808026cfa7b2c86ff75714d2f92608a31cb172da77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3290dfb2042305011607a6b82c3c5b96c38dcb74c7ec564d0058a03393dcf797
[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" "3290dfb2042305011607a6b82c3c5b96c38dcb74c7ec564d0058a03393dcf797", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook v0.3.9
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tui v0.16.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking config v0.11.0
[INFO] [stderr]     Checking classroom-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.57s
[INFO] running `Command { std: "docker" "inspect" "3290dfb2042305011607a6b82c3c5b96c38dcb74c7ec564d0058a03393dcf797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3290dfb2042305011607a6b82c3c5b96c38dcb74c7ec564d0058a03393dcf797", kill_on_drop: false }`
[INFO] [stdout] 3290dfb2042305011607a6b82c3c5b96c38dcb74c7ec564d0058a03393dcf797