[INFO] cloning repository https://github.com/vilroi/frieren
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vilroi/frieren" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvilroi%2Ffrieren", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvilroi%2Ffrieren'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ab974187f33ca8edc2804143adf7b9a22e3f0be
[INFO] checking vilroi/frieren against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvilroi%2Ffrieren" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vilroi/frieren on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vilroi/frieren
[INFO] finished tweaking git repo https://github.com/vilroi/frieren
[INFO] tweaked toml for git repo https://github.com/vilroi/frieren written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vilroi/frieren already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68ab6db77fff2ab5c323bfe0c57e852106813cc1c9b513d961581fce00ccb814
[INFO] running `Command { std: "docker" "start" "-a" "68ab6db77fff2ab5c323bfe0c57e852106813cc1c9b513d961581fce00ccb814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ab6db77fff2ab5c323bfe0c57e852106813cc1c9b513d961581fce00ccb814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ab6db77fff2ab5c323bfe0c57e852106813cc1c9b513d961581fce00ccb814", kill_on_drop: false }`
[INFO] [stdout] 68ab6db77fff2ab5c323bfe0c57e852106813cc1c9b513d961581fce00ccb814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88c2529cfb5a4fe006d73b2f2b84086ca576758e68503c12960fd2674e38ea3a
[INFO] running `Command { std: "docker" "start" "-a" "88c2529cfb5a4fe006d73b2f2b84086ca576758e68503c12960fd2674e38ea3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking frieren v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `slice`
[INFO] [stdout]  --> src/utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     slice,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::symbols::SymbolType`
[INFO] [stdout]   --> src/lib.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 |  use crate::symbols::SymbolType;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::section::SectionType`
[INFO] [stdout]   --> src/lib.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 |  use crate::section::SectionType;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice`
[INFO] [stdout]  --> src/utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     slice,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/symbols.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/symbols.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]   --> src/lib.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |  const PAGE_SIZE: usize = 0x1000;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ip` is never used
[INFO] [stdout]    --> src/lib.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn get_ip() -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_loadaddr` is never used
[INFO] [stdout]    --> src/lib.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn get_loadaddr() -> *mut usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sleep` is never used
[INFO] [stdout]    --> src/lib.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn sleep(secs: u64) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ELF_MAGIC` is never used
[INFO] [stdout]  --> src/header.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ELF_MAGIC: u32 = 0x464c457f;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Class` is never used
[INFO] [stdout]   --> src/header.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Class {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Endianess` is never used
[INFO] [stdout]   --> src/header.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum Endianess {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Version` is never used
[INFO] [stdout]   --> src/header.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Version {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OsAbi` is never used
[INFO] [stdout]   --> src/header.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum OsAbi {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/segment.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Segment {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 24 |     typ: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     flags: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 26 |     offset: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 27 |     vaddr: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     paddr: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     filesz: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     memsz: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 31 |     align: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Segment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut count = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut count = 0;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]   --> src/lib.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |  const PAGE_SIZE: usize = 0x1000;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ip` is never used
[INFO] [stdout]    --> src/lib.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn get_ip() -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_loadaddr` is never used
[INFO] [stdout]    --> src/lib.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn get_loadaddr() -> *mut usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sleep` is never used
[INFO] [stdout]    --> src/lib.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn sleep(secs: u64) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ELF_MAGIC` is never used
[INFO] [stdout]  --> src/header.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ELF_MAGIC: u32 = 0x464c457f;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Class` is never used
[INFO] [stdout]   --> src/header.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Class {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Endianess` is never used
[INFO] [stdout]   --> src/header.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum Endianess {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Version` is never used
[INFO] [stdout]   --> src/header.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Version {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OsAbi` is never used
[INFO] [stdout]   --> src/header.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum OsAbi {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/segment.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Segment {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 24 |     typ: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     flags: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 26 |     offset: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 27 |     vaddr: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     paddr: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     filesz: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     memsz: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 31 |     align: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Segment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_elf` is never used
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn test_elf() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_sections` is never used
[INFO] [stdout]   --> src/lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn test_sections() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_symbols` is never used
[INFO] [stdout]   --> src/lib.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn test_symbols() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_dynamic_section` is never used
[INFO] [stdout]   --> src/lib.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn test_dynamic_section() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "88c2529cfb5a4fe006d73b2f2b84086ca576758e68503c12960fd2674e38ea3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c2529cfb5a4fe006d73b2f2b84086ca576758e68503c12960fd2674e38ea3a", kill_on_drop: false }`
[INFO] [stdout] 88c2529cfb5a4fe006d73b2f2b84086ca576758e68503c12960fd2674e38ea3a