[INFO] fetching crate proconio 0.3.7...
[INFO] checking proconio-0.3.7 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate proconio 0.3.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate proconio 0.3.7 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proconio 0.3.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate proconio 0.3.7
[INFO] tweaked toml for crates.io crate proconio 0.3.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio-derive v0.1.9
[INFO] [stderr]   Downloaded environment v0.1.1
[INFO] [stderr]   Downloaded assert_cli v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 283668062f5aed2ffcc5bd9603eea7ee0d82ce0666095841712e1a5576c1a034
[INFO] running `Command { std: "docker" "start" "-a" "283668062f5aed2ffcc5bd9603eea7ee0d82ce0666095841712e1a5576c1a034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "283668062f5aed2ffcc5bd9603eea7ee0d82ce0666095841712e1a5576c1a034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283668062f5aed2ffcc5bd9603eea7ee0d82ce0666095841712e1a5576c1a034", kill_on_drop: false }`
[INFO] [stdout] 283668062f5aed2ffcc5bd9603eea7ee0d82ce0666095841712e1a5576c1a034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46fb094c3f0ccbca916b060f60d9cae715afa31197bf75323b8c7c5e3fe077da
[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" "46fb094c3f0ccbca916b060f60d9cae715afa31197bf75323b8c7c5e3fe077da", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking proconio v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking assert_cli v0.6.3
[INFO] [stderr]     Checking trybuild v1.0.42
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.83s
[INFO] running `Command { std: "docker" "inspect" "46fb094c3f0ccbca916b060f60d9cae715afa31197bf75323b8c7c5e3fe077da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fb094c3f0ccbca916b060f60d9cae715afa31197bf75323b8c7c5e3fe077da", kill_on_drop: false }`
[INFO] [stdout] 46fb094c3f0ccbca916b060f60d9cae715afa31197bf75323b8c7c5e3fe077da