[INFO] updating cached repository https://github.com/rjmholt/mips-disasm-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a26360d906f4b7a2bd57e00702baa590ed8ff044
[INFO] testing rjmholt/mips-disasm-rust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjmholt%2Fmips-disasm-rust" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rjmholt/mips-disasm-rust on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rjmholt/mips-disasm-rust
[INFO] finished tweaking git repo https://github.com/rjmholt/mips-disasm-rust
[INFO] tweaked toml for git repo https://github.com/rjmholt/mips-disasm-rust written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rjmholt/mips-disasm-rust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 7632f9a91dd0a7a16c1279707c5394497445b0846de12898eece6d8cf261d920
[INFO] running `"docker" "start" "-a" "7632f9a91dd0a7a16c1279707c5394497445b0846de12898eece6d8cf261d920"`
[INFO] [stderr]    Compiling mips v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/mips/read.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Error`
[INFO] [stderr]  --> src/mips/read.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/mips/print.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn print_instrs(f: &mut Write, instr_vec: &Vec<(u32, Instr)>) -> ()
[INFO] [stderr]   |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `curr_addr` is never read
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     curr_addr = mips::START_ADDR;
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `curr_addr`
[INFO] [stderr]    --> src/mips/data.rs:398:27
[INFO] [stderr]     |
[INFO] [stderr] 398 |     fn branch_addr(&self, curr_addr: u32) -> u32
[INFO] [stderr]     |                           ^^^^^^^^^ help: consider prefixing with an underscore: `_curr_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `curr_addr`
[INFO] [stderr]    --> src/mips/data.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn branch_addr(&self, curr_addr: u32) -> u32
[INFO] [stderr]     |                           ^^^^^^^^^ help: consider prefixing with an underscore: `_curr_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/mips/print.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         write!(f, "[0x{:08x}] 0x{:08x} {}\n", curr_addr, code, instr);
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/mips/print.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     write!(f, "\n");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "7632f9a91dd0a7a16c1279707c5394497445b0846de12898eece6d8cf261d920"`
[INFO] running `"docker" "rm" "-f" "7632f9a91dd0a7a16c1279707c5394497445b0846de12898eece6d8cf261d920"`
[INFO] [stdout] 7632f9a91dd0a7a16c1279707c5394497445b0846de12898eece6d8cf261d920
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 97d27c870f3095aaa4e47d37b19e5492818d4cdb9f734e1a47c37e2426dcbfbf
[INFO] running `"docker" "start" "-a" "97d27c870f3095aaa4e47d37b19e5492818d4cdb9f734e1a47c37e2426dcbfbf"`
[INFO] [stderr]    Compiling mips v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/mips/read.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Error`
[INFO] [stderr]  --> src/mips/read.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/mips/print.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn print_instrs(f: &mut Write, instr_vec: &Vec<(u32, Instr)>) -> ()
[INFO] [stderr]   |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `curr_addr` is never read
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     curr_addr = mips::START_ADDR;
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `curr_addr`
[INFO] [stderr]    --> src/mips/data.rs:398:27
[INFO] [stderr]     |
[INFO] [stderr] 398 |     fn branch_addr(&self, curr_addr: u32) -> u32
[INFO] [stderr]     |                           ^^^^^^^^^ help: consider prefixing with an underscore: `_curr_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `curr_addr`
[INFO] [stderr]    --> src/mips/data.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn branch_addr(&self, curr_addr: u32) -> u32
[INFO] [stderr]     |                           ^^^^^^^^^ help: consider prefixing with an underscore: `_curr_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/mips/print.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         write!(f, "[0x{:08x}] 0x{:08x} {}\n", curr_addr, code, instr);
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/mips/print.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     write!(f, "\n");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "97d27c870f3095aaa4e47d37b19e5492818d4cdb9f734e1a47c37e2426dcbfbf"`
[INFO] running `"docker" "rm" "-f" "97d27c870f3095aaa4e47d37b19e5492818d4cdb9f734e1a47c37e2426dcbfbf"`
[INFO] [stdout] 97d27c870f3095aaa4e47d37b19e5492818d4cdb9f734e1a47c37e2426dcbfbf
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 83d78754080899e822377801f4190da18c7a3fd3abad478de3be0c52cad53cdf
[INFO] running `"docker" "start" "-a" "83d78754080899e822377801f4190da18c7a3fd3abad478de3be0c52cad53cdf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mips-98b94b8bdb207cd1
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "83d78754080899e822377801f4190da18c7a3fd3abad478de3be0c52cad53cdf"`
[INFO] running `"docker" "rm" "-f" "83d78754080899e822377801f4190da18c7a3fd3abad478de3be0c52cad53cdf"`
[INFO] [stdout] 83d78754080899e822377801f4190da18c7a3fd3abad478de3be0c52cad53cdf