[INFO] fetching crate cargo-sym 0.0.6...
[INFO] checking cargo-sym-0.0.6 against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] extracting crate cargo-sym 0.0.6 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-sym 0.0.6 on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-sym 0.0.6
[INFO] finished tweaking crates.io crate cargo-sym 0.0.6
[INFO] tweaked toml for crates.io crate cargo-sym 0.0.6 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded capstone3 v0.1.0
[INFO] [stderr]   Downloaded syn v0.10.8
[INFO] [stderr]   Downloaded scroll_derive v0.3.0
[INFO] [stderr]   Downloaded scroll v0.3.0
[INFO] [stderr]   Downloaded capstone-sys v0.2.0
[INFO] [stderr]   Downloaded goblin v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d454e3c14ba3e5647727d887e00cc7e0eb0417bbddecefc77def324381ebba28
[INFO] running `Command { std: "docker" "start" "-a" "d454e3c14ba3e5647727d887e00cc7e0eb0417bbddecefc77def324381ebba28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d454e3c14ba3e5647727d887e00cc7e0eb0417bbddecefc77def324381ebba28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d454e3c14ba3e5647727d887e00cc7e0eb0417bbddecefc77def324381ebba28", kill_on_drop: false }`
[INFO] [stdout] d454e3c14ba3e5647727d887e00cc7e0eb0417bbddecefc77def324381ebba28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17d23c06a448d5be3beca8ae7ccda03e0f4d6c47eb8624c1b8860a27f9a04d90
[INFO] running `Command { std: "docker" "start" "-a" "17d23c06a448d5be3beca8ae7ccda03e0f4d6c47eb8624c1b8860a27f9a04d90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking scroll v0.3.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling capstone-sys v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling scroll_derive v0.3.0
[INFO] [stderr]     Checking goblin v0.0.8
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking capstone3 v0.1.0
[INFO] [stderr]     Checking cargo-sym v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:404:9
[INFO] [stdout]     |
[INFO] [stdout] 404 |     let mut bytes = &mut Cursor::new(&buffer);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:404:9
[INFO] [stdout]     |
[INFO] [stdout] 404 |     let mut bytes = &mut Cursor::new(&buffer);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.68s
[INFO] running `Command { std: "docker" "inspect" "17d23c06a448d5be3beca8ae7ccda03e0f4d6c47eb8624c1b8860a27f9a04d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d23c06a448d5be3beca8ae7ccda03e0f4d6c47eb8624c1b8860a27f9a04d90", kill_on_drop: false }`
[INFO] [stdout] 17d23c06a448d5be3beca8ae7ccda03e0f4d6c47eb8624c1b8860a27f9a04d90