[INFO] cloning repository https://github.com/the-rectifier/rust_charisa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the-rectifier/rust_charisa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-rectifier%2Frust_charisa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-rectifier%2Frust_charisa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75f0cb983fc41e2ce5b20e57e5952a849a4666ae
[INFO] checking the-rectifier/rust_charisa against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-rectifier%2Frust_charisa" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/the-rectifier/rust_charisa
[INFO] finished tweaking git repo https://github.com/the-rectifier/rust_charisa
[INFO] tweaked toml for git repo https://github.com/the-rectifier/rust_charisa written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/the-rectifier/rust_charisa on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/the-rectifier/rust_charisa 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b8d27b88a55c1f4bffedd56e19972616989c0280cbd80f2f78a25f82103df7
[INFO] running `Command { std: "docker" "start" "-a" "f8b8d27b88a55c1f4bffedd56e19972616989c0280cbd80f2f78a25f82103df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b8d27b88a55c1f4bffedd56e19972616989c0280cbd80f2f78a25f82103df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b8d27b88a55c1f4bffedd56e19972616989c0280cbd80f2f78a25f82103df7", kill_on_drop: false }`
[INFO] [stdout] f8b8d27b88a55c1f4bffedd56e19972616989c0280cbd80f2f78a25f82103df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5caff6cadbd5c4029677fc891b34469220c6fb836d59566373c0a12f2241b01f
[INFO] running `Command { std: "docker" "start" "-a" "5caff6cadbd5c4029677fc891b34469220c6fb836d59566373c0a12f2241b01f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]     Checking simplelog v0.11.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking rust_charis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stdout]  --> src/asm.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::{error, info, warn};
[INFO] [stdout]   |           ^^^^^  ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `stdin`
[INFO] [stdout]  --> src/asm.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error`, `info`, and `warn`
[INFO] [stdout]  --> src/asm.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::{error, info, warn};
[INFO] [stdout]   |           ^^^^^  ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `stdin`
[INFO] [stdout]  --> src/asm.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, BufRead, BufReader, Read, Write};
[INFO] [stdout]   |               ^^^^^                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/asm.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, BufRead, BufReader, Read, Write};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/asm.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/asm.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, BufRead, BufReader, Read, Write};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/asm.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/asm.rs:162:18
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn do_disasm(args: Disasm) -> Result<()> {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/asm.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Disasm {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 47 |     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 48 |     file: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Disasm` 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: unused variable: `args`
[INFO] [stdout]    --> src/asm.rs:162:18
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn do_disasm(args: Disasm) -> Result<()> {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/asm.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Disasm {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 47 |     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 48 |     file: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Disasm` 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/asm.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 42 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/asm.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 48 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/asm.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 42 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/asm.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     #[structopt(long = "file", short = "f")]
[INFO] [stdout] 48 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_charis` (bin "rust_charis") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_charis` (bin "rust_charis" test) due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5caff6cadbd5c4029677fc891b34469220c6fb836d59566373c0a12f2241b01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5caff6cadbd5c4029677fc891b34469220c6fb836d59566373c0a12f2241b01f", kill_on_drop: false }`
[INFO] [stdout] 5caff6cadbd5c4029677fc891b34469220c6fb836d59566373c0a12f2241b01f
