[INFO] cloning repository https://github.com/shakyShane/from_file
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shakyShane/from_file" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Ffrom_file", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Ffrom_file'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bbc94f55e2b1142c56051dfde50d0cfa77c532f
[INFO] checking shakyShane/from_file against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Ffrom_file" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shakyShane/from_file on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shakyShane/from_file
[INFO] finished tweaking git repo https://github.com/shakyShane/from_file
[INFO] tweaked toml for git repo https://github.com/shakyShane/from_file written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/shakyShane/from_file already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-4/source/from_file_derive/Cargo.toml: unused manifest key: lib.travis-ci
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 685c380bcf5b5b37cd2108d93ab08b7e3a7763290280395341cbda0682ace802
[INFO] running `Command { std: "docker" "start" "-a" "685c380bcf5b5b37cd2108d93ab08b7e3a7763290280395341cbda0682ace802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "685c380bcf5b5b37cd2108d93ab08b7e3a7763290280395341cbda0682ace802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "685c380bcf5b5b37cd2108d93ab08b7e3a7763290280395341cbda0682ace802", kill_on_drop: false }`
[INFO] [stdout] 685c380bcf5b5b37cd2108d93ab08b7e3a7763290280395341cbda0682ace802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27760e2a6f81beee0c99cabb874f1b8ad831fa7ee0ea4984d1e6cb11a85e40fa
[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" "27760e2a6f81beee0c99cabb874f1b8ad831fa7ee0ea4984d1e6cb11a85e40fa", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/from_file_derive/Cargo.toml: unused manifest key: lib.travis-ci
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking proc-macro2 v0.4.24
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking quote v0.6.10
[INFO] [stderr]     Checking syn v0.15.22
[INFO] [stderr]     Checking from_file_derive v0.1.3 (/opt/rustwide/workdir/from_file_derive)
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serde_yaml v0.8.7
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking from_file v0.1.3 (/opt/rustwide/workdir/from_file)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> from_file/src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[macro_use]
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.27s
[INFO] running `Command { std: "docker" "inspect" "27760e2a6f81beee0c99cabb874f1b8ad831fa7ee0ea4984d1e6cb11a85e40fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27760e2a6f81beee0c99cabb874f1b8ad831fa7ee0ea4984d1e6cb11a85e40fa", kill_on_drop: false }`
[INFO] [stdout] 27760e2a6f81beee0c99cabb874f1b8ad831fa7ee0ea4984d1e6cb11a85e40fa