[INFO] fetching crate ropr 0.1.4...
[INFO] checking ropr-0.1.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate ropr 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ropr 0.1.4 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ropr 0.1.4
[INFO] finished tweaking crates.io crate ropr 0.1.4
[INFO] tweaked toml for crates.io crate ropr 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ropr 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded goblin v0.2.3
[INFO] [stderr]   Downloaded zydis v3.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f37b5c8d792925d43c2457844bd4d809e5a52f5c7fa384d209416397a2b2ec63
[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" "f37b5c8d792925d43c2457844bd4d809e5a52f5c7fa384d209416397a2b2ec63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f37b5c8d792925d43c2457844bd4d809e5a52f5c7fa384d209416397a2b2ec63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f37b5c8d792925d43c2457844bd4d809e5a52f5c7fa384d209416397a2b2ec63", kill_on_drop: false }`
[INFO] [stdout] f37b5c8d792925d43c2457844bd4d809e5a52f5c7fa384d209416397a2b2ec63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab6bcf6affdb9312da9053ca8258f1ef388dd3950ef1acb037c0ec1395b567de
[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" "ab6bcf6affdb9312da9053ca8258f1ef388dd3950ef1acb037c0ec1395b567de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling zydis v3.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking ropr v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn from_elf(binary: &Binary, elf: Elf) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn from_pe(binary: &Binary, pe: PE) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:67:18
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn from_mach(binary: &Binary, mach: Mach) -> Result<Vec<Section>, Error> { unimplemented!() }
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mach`
[INFO] [stdout]   --> src/sections.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn from_mach(binary: &Binary, mach: Mach) -> Result<Vec<Section>, Error> { unimplemented!() }
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_mach`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn from_archive(binary: &Binary, archive: Archive) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `archive`
[INFO] [stdout]   --> src/sections.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn from_archive(binary: &Binary, archive: Archive) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_archive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/binary.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn from_elf(binary: &Binary, elf: Elf) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn from_pe(binary: &Binary, pe: PE) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:67:18
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn from_mach(binary: &Binary, mach: Mach) -> Result<Vec<Section>, Error> { unimplemented!() }
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mach`
[INFO] [stdout]   --> src/sections.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn from_mach(binary: &Binary, mach: Mach) -> Result<Vec<Section>, Error> { unimplemented!() }
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_mach`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]   --> src/sections.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn from_archive(binary: &Binary, archive: Archive) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `archive`
[INFO] [stdout]   --> src/sections.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn from_archive(binary: &Binary, archive: Archive) -> Result<Vec<Section>, Error> {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_archive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/binary.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.38s
[INFO] running `Command { std: "docker" "inspect" "ab6bcf6affdb9312da9053ca8258f1ef388dd3950ef1acb037c0ec1395b567de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab6bcf6affdb9312da9053ca8258f1ef388dd3950ef1acb037c0ec1395b567de", kill_on_drop: false }`
[INFO] [stdout] ab6bcf6affdb9312da9053ca8258f1ef388dd3950ef1acb037c0ec1395b567de