[INFO] cloning repository https://github.com/francis36012/c8dump
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/francis36012/c8dump" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancis36012%2Fc8dump", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancis36012%2Fc8dump'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3012c81d997eee92582a526832ac9e5a7d82d025
[INFO] testing francis36012/c8dump against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancis36012%2Fc8dump" "/workspace/builds/worker-60/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-60/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/francis36012/c8dump on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/francis36012/c8dump
[INFO] finished tweaking git repo https://github.com/francis36012/c8dump
[INFO] tweaked toml for git repo https://github.com/francis36012/c8dump written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate git repo https://github.com/francis36012/c8dump already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded unicode-width v0.1.3
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.11
[INFO] [stderr]   Downloaded strsim v0.4.1
[INFO] [stderr]   Downloaded clap v2.5.1
[INFO] [stderr]   Downloaded ansi_term v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 955cb6be169ad7c41ce6ae6899578a1137b2573179075f0f4733dc19580efec6
[INFO] running `Command { std: "docker" "start" "-a" "955cb6be169ad7c41ce6ae6899578a1137b2573179075f0f4733dc19580efec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "955cb6be169ad7c41ce6ae6899578a1137b2573179075f0f4733dc19580efec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955cb6be169ad7c41ce6ae6899578a1137b2573179075f0f4733dc19580efec6", kill_on_drop: false }`
[INFO] [stdout] 955cb6be169ad7c41ce6ae6899578a1137b2573179075f0f4733dc19580efec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a04dd3f9b21fdadea1248fb065c9f1112af08ef0751de44a541e71dda76dd0da
[INFO] running `Command { std: "docker" "start" "-a" "a04dd3f9b21fdadea1248fb065c9f1112af08ef0751de44a541e71dda76dd0da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling strsim v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling ansi_term v0.7.2
[INFO] [stderr]    Compiling libc v0.2.11
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling clap v2.5.1
[INFO] [stderr]    Compiling c8dump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:240:5
[INFO] [stdout]     |
[INFO] [stdout] 41  | /     match opcode {
[INFO] [stdout] 42  | |         0x0 => {
[INFO] [stdout] 43  | |             let lnibbles = instruction & 0x0fffu16;
[INFO] [stdout] 44  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 238 | |         }
[INFO] [stdout] 239 | |     }
[INFO] [stdout]     | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 240 |       String::new()
[INFO] [stdout]     |       ^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OutputError`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     OutputError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     disassemble(input_file, std::io::stdout());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 out_writer.write(format!("0x{:0>4x}: ", offset).as_bytes());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 out_writer.flush();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "a04dd3f9b21fdadea1248fb065c9f1112af08ef0751de44a541e71dda76dd0da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a04dd3f9b21fdadea1248fb065c9f1112af08ef0751de44a541e71dda76dd0da", kill_on_drop: false }`
[INFO] [stdout] a04dd3f9b21fdadea1248fb065c9f1112af08ef0751de44a541e71dda76dd0da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd58cd4be589882da6c3690f9b8988576b67eb6794d2a0a5e55f4f6f8ac83546
[INFO] running `Command { std: "docker" "start" "-a" "cd58cd4be589882da6c3690f9b8988576b67eb6794d2a0a5e55f4f6f8ac83546", kill_on_drop: false }`
[INFO] [stderr]    Compiling c8dump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:240:5
[INFO] [stdout]     |
[INFO] [stdout] 41  | /     match opcode {
[INFO] [stdout] 42  | |         0x0 => {
[INFO] [stdout] 43  | |             let lnibbles = instruction & 0x0fffu16;
[INFO] [stdout] 44  | |
[INFO] [stdout] ...   |
[INFO] [stdout] 238 | |         }
[INFO] [stdout] 239 | |     }
[INFO] [stdout]     | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 240 |       String::new()
[INFO] [stdout]     |       ^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OutputError`
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     OutputError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     disassemble(input_file, std::io::stdout());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 out_writer.write(format!("0x{:0>4x}: ", offset).as_bytes());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:261:17
[INFO] [stdout]     |
[INFO] [stdout] 261 |                 out_writer.flush();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "cd58cd4be589882da6c3690f9b8988576b67eb6794d2a0a5e55f4f6f8ac83546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd58cd4be589882da6c3690f9b8988576b67eb6794d2a0a5e55f4f6f8ac83546", kill_on_drop: false }`
[INFO] [stdout] cd58cd4be589882da6c3690f9b8988576b67eb6794d2a0a5e55f4f6f8ac83546
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 076a154dffc048473ccb4551326d71522bd157948b5585fc6796a8c4d7446ed3
[INFO] running `Command { std: "docker" "start" "-a" "076a154dffc048473ccb4551326d71522bd157948b5585fc6796a8c4d7446ed3", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 41  | /     match opcode {
[INFO] [stderr] 42  | |         0x0 => {
[INFO] [stderr] 43  | |             let lnibbles = instruction & 0x0fffu16;
[INFO] [stderr] 44  | |
[INFO] [stderr] ...   |
[INFO] [stderr] 238 | |         }
[INFO] [stderr] 239 | |     }
[INFO] [stderr]     | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 240 |       String::new()
[INFO] [stderr]     |       ^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OutputError`
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     OutputError(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     disassemble(input_file, std::io::stdout());
[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] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 out_writer.write(format!("0x{:0>4x}: ", offset).as_bytes());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:261:17
[INFO] [stderr]     |
[INFO] [stderr] 261 |                 out_writer.flush();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `c8dump` (bin "c8dump" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/c8dump-c0132747e68cf71d)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "076a154dffc048473ccb4551326d71522bd157948b5585fc6796a8c4d7446ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076a154dffc048473ccb4551326d71522bd157948b5585fc6796a8c4d7446ed3", kill_on_drop: false }`
[INFO] [stdout] 076a154dffc048473ccb4551326d71522bd157948b5585fc6796a8c4d7446ed3