[INFO] cloning repository https://github.com/AdamStepan/rust-elf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamStepan/rust-elf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa4815a391eb8a95ae68e577d29f6e77d75b3bb4
[INFO] checking AdamStepan/rust-elf against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdamStepan/rust-elf on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdamStepan/rust-elf
[INFO] finished tweaking git repo https://github.com/AdamStepan/rust-elf
[INFO] tweaked toml for git repo https://github.com/AdamStepan/rust-elf written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] f783747798aff4655efd5d06c173619ee5f1b860fbc7fb2c4e4ec5dc8be50dd1
[INFO] running `Command { std: "docker" "start" "-a" "f783747798aff4655efd5d06c173619ee5f1b860fbc7fb2c4e4ec5dc8be50dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f783747798aff4655efd5d06c173619ee5f1b860fbc7fb2c4e4ec5dc8be50dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f783747798aff4655efd5d06c173619ee5f1b860fbc7fb2c4e4ec5dc8be50dd1", kill_on_drop: false }`
[INFO] [stdout] f783747798aff4655efd5d06c173619ee5f1b860fbc7fb2c4e4ec5dc8be50dd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f0802cff3709c9b39342d1d81b2289d4814aa60f86f7954b0a2fed23647a3f8
[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" "2f0802cff3709c9b39342d1d81b2289d4814aa60f86f7954b0a2fed23647a3f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rust-elf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1286:13
[INFO] [stdout]      |
[INFO] [stdout] 1286 |     fn core(value: &NoteType, data: Vec<u8>) -> NoteDesc {
[INFO] [stdout]      |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1286:13
[INFO] [stdout]      |
[INFO] [stdout] 1286 |     fn core(value: &NoteType, data: Vec<u8>) -> NoteDesc {
[INFO] [stdout]      |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedFile`
[INFO] [stdout]     --> src/main.rs:1247:8
[INFO] [stdout]      |
[INFO] [stdout] 1247 | struct MappedFile {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedFiles`
[INFO] [stdout]     --> src/main.rs:1254:8
[INFO] [stdout]      |
[INFO] [stdout] 1254 | struct MappedFiles {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedFile`
[INFO] [stdout]     --> src/main.rs:1247:8
[INFO] [stdout]      |
[INFO] [stdout] 1247 | struct MappedFile {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MappedFiles`
[INFO] [stdout]     --> src/main.rs:1254:8
[INFO] [stdout]      |
[INFO] [stdout] 1254 | struct MappedFiles {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.82s
[INFO] running `Command { std: "docker" "inspect" "2f0802cff3709c9b39342d1d81b2289d4814aa60f86f7954b0a2fed23647a3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0802cff3709c9b39342d1d81b2289d4814aa60f86f7954b0a2fed23647a3f8", kill_on_drop: false }`
[INFO] [stdout] 2f0802cff3709c9b39342d1d81b2289d4814aa60f86f7954b0a2fed23647a3f8