[INFO] cloning repository https://github.com/avnigenc/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/avnigenc/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favnigenc%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favnigenc%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2bb26bfec447cde772c342b2484025e3a440015
[INFO] checking avnigenc/rust against try#14e4661efa5acbf985e4fe564baae04683366cc1 for pr-157696
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favnigenc%2Frust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/avnigenc/rust
[INFO] finished tweaking git repo https://github.com/avnigenc/rust
[INFO] tweaked toml for git repo https://github.com/avnigenc/rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/avnigenc/rust on toolchain 14e4661efa5acbf985e4fe564baae04683366cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/avnigenc/rust 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" "+14e4661efa5acbf985e4fe564baae04683366cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac
[INFO] running `Command { std: "docker" "start" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking blowfish v0.4.0
[INFO] [stderr]     Checking bcrypt v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking qrcode v0.8.0
[INFO] [stderr]     Checking tutorials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> src/lifetime.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct A {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 6 |     s: &'static str
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]   --> src/lifetime.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct B <'b> {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 11 |     s: &'b str
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `B` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `class` is never read
[INFO] [stdout]  --> src/dodo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Student {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     class: Class,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `no` and `name` are never read
[INFO] [stdout]   --> src/dodo.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Class {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |     no: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Class` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]  --> src/lifetime.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct A {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 6 |     s: &'static str
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `s` is never read
[INFO] [stdout]   --> src/lifetime.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct B <'b> {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 11 |     s: &'b str
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `B` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `class` is never read
[INFO] [stdout]  --> src/dodo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Student {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     class: Class,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Student` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `no` and `name` are never read
[INFO] [stdout]   --> src/dodo.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Class {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |     no: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Class` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.31s
[INFO] running `Command { std: "docker" "inspect" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac", kill_on_drop: false }`
[INFO] [stdout] d19539e2f1706715cd0ef035451c00ccfa66b15a8cd8ac7915cfbc3696cfd2ac
