[INFO] cloning repository https://github.com/sisshiki1969/ruruby
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sisshiki1969/ruruby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 802d3c01d2db4af462635827f96b625926731c51
[INFO] checking sisshiki1969/ruruby against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sisshiki1969/ruruby on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sisshiki1969/ruruby
[INFO] finished tweaking git repo https://github.com/sisshiki1969/ruruby
[INFO] tweaked toml for git repo https://github.com/sisshiki1969/ruruby written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/sisshiki1969/ruruby already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f15a139ab9b600cb37290dacee5eee2745d96a9d136bf929bc52d5799697ff2d
[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" "f15a139ab9b600cb37290dacee5eee2745d96a9d136bf929bc52d5799697ff2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f15a139ab9b600cb37290dacee5eee2745d96a9d136bf929bc52d5799697ff2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15a139ab9b600cb37290dacee5eee2745d96a9d136bf929bc52d5799697ff2d", kill_on_drop: false }`
[INFO] [stdout] f15a139ab9b600cb37290dacee5eee2745d96a9d136bf929bc52d5799697ff2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 230ac663f5a92ca2d2c874ee41fbcea1ecf34aac01b66afae6ee71a93c45e41d
[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" "230ac663f5a92ca2d2c874ee41fbcea1ecf34aac01b66afae6ee71a93c45e41d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking divrem v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking fancy-regex v0.3.5
[INFO] [stderr]     Checking console v0.12.0
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]     Checking ruruby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.91s
[INFO] running `Command { std: "docker" "inspect" "230ac663f5a92ca2d2c874ee41fbcea1ecf34aac01b66afae6ee71a93c45e41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "230ac663f5a92ca2d2c874ee41fbcea1ecf34aac01b66afae6ee71a93c45e41d", kill_on_drop: false }`
[INFO] [stdout] 230ac663f5a92ca2d2c874ee41fbcea1ecf34aac01b66afae6ee71a93c45e41d