[INFO] cloning repository https://github.com/whosethink/class_viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whosethink/class_viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhosethink%2Fclass_viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhosethink%2Fclass_viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05ff5f2fd602f565f08fb876000e473b10f28bd2
[INFO] checking whosethink/class_viewer against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhosethink%2Fclass_viewer" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whosethink/class_viewer on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whosethink/class_viewer
[INFO] finished tweaking git repo https://github.com/whosethink/class_viewer
[INFO] tweaked toml for git repo https://github.com/whosethink/class_viewer written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a96fa7186e5eea27f7baa21c195a19dd6aba6dca5d55ebb987667ed5aab67791
[INFO] running `Command { std: "docker" "start" "-a" "a96fa7186e5eea27f7baa21c195a19dd6aba6dca5d55ebb987667ed5aab67791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a96fa7186e5eea27f7baa21c195a19dd6aba6dca5d55ebb987667ed5aab67791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a96fa7186e5eea27f7baa21c195a19dd6aba6dca5d55ebb987667ed5aab67791", kill_on_drop: false }`
[INFO] [stdout] a96fa7186e5eea27f7baa21c195a19dd6aba6dca5d55ebb987667ed5aab67791
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad9dba628d9ea5eee98629133ab21b839825cf44a93471e9273474c36cb39029
[INFO] running `Command { std: "docker" "start" "-a" "ad9dba628d9ea5eee98629133ab21b839825cf44a93471e9273474c36cb39029", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking class_viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::access::ClassAccessFlag`
[INFO] [stdout]   --> src/class.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::access::ClassAccessFlag;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]   --> src/class.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]   --> src/class.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ops::Add;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/magic.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::access::ClassAccessFlag`
[INFO] [stdout]   --> src/class.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::access::ClassAccessFlag;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]   --> src/class.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]   --> src/class.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ops::Add;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/magic.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FieldAccessFlag`
[INFO] [stdout]   --> src/access.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct FieldAccessFlag {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MethodAccessFlag`
[INFO] [stdout]    --> src/access.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct MethodAccessFlag {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_magic`
[INFO] [stdout]   --> src/class.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |   fn get_magic(&self) -> &Magic {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_number`
[INFO] [stdout]   --> src/magic.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |   pub fn get_number(&self) -> u32 {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FieldAccessFlag`
[INFO] [stdout]   --> src/access.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct FieldAccessFlag {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MethodAccessFlag`
[INFO] [stdout]    --> src/access.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct MethodAccessFlag {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_magic`
[INFO] [stdout]   --> src/class.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |   fn get_magic(&self) -> &Magic {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_number`
[INFO] [stdout]   --> src/magic.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |   pub fn get_number(&self) -> u32 {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "ad9dba628d9ea5eee98629133ab21b839825cf44a93471e9273474c36cb39029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9dba628d9ea5eee98629133ab21b839825cf44a93471e9273474c36cb39029", kill_on_drop: false }`
[INFO] [stdout] ad9dba628d9ea5eee98629133ab21b839825cf44a93471e9273474c36cb39029