[INFO] cloning repository https://github.com/jasondew/synacor-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasondew/synacor-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bda8780ea396bdb6719acb10de97a30a3e22c8f2
[INFO] testing jasondew/synacor-challenge against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasondew%2Fsynacor-challenge" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jasondew/synacor-challenge on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jasondew/synacor-challenge
[INFO] finished tweaking git repo https://github.com/jasondew/synacor-challenge
[INFO] tweaked toml for git repo https://github.com/jasondew/synacor-challenge written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/jasondew/synacor-challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 304ad36a0e1a973060b9841da109ee8de3056a79816759244e5d127d8e6224aa
[INFO] running `Command { std: "docker" "start" "-a" "304ad36a0e1a973060b9841da109ee8de3056a79816759244e5d127d8e6224aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304ad36a0e1a973060b9841da109ee8de3056a79816759244e5d127d8e6224aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304ad36a0e1a973060b9841da109ee8de3056a79816759244e5d127d8e6224aa", kill_on_drop: false }`
[INFO] [stdout] 304ad36a0e1a973060b9841da109ee8de3056a79816759244e5d127d8e6224aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3649e6b2c33c9042f2315f6898ce2b7a2739c18dd4fea398487c5e110beea99d
[INFO] running `Command { std: "docker" "start" "-a" "3649e6b2c33c9042f2315f6898ce2b7a2739c18dd4fea398487c5e110beea99d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/disassembler.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     loop {
[INFO] [stdout] 26 | |         print!("{}: ", vm.get_ip());
[INFO] [stdout] 27 | |         match vm.get_next_operation() {
[INFO] [stdout] 28 | |             Ok(operation) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         }
[INFO] [stdout] 83 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 84 | 
[INFO] [stdout] 85 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.07s
[INFO] running `Command { std: "docker" "inspect" "3649e6b2c33c9042f2315f6898ce2b7a2739c18dd4fea398487c5e110beea99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3649e6b2c33c9042f2315f6898ce2b7a2739c18dd4fea398487c5e110beea99d", kill_on_drop: false }`
[INFO] [stdout] 3649e6b2c33c9042f2315f6898ce2b7a2739c18dd4fea398487c5e110beea99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b6d78cf8afca4bd5ebd620b8bc4d6d0798fe0fdc136eb760fcf2c4866bfaafb
[INFO] running `Command { std: "docker" "start" "-a" "0b6d78cf8afca4bd5ebd620b8bc4d6d0798fe0fdc136eb760fcf2c4866bfaafb", kill_on_drop: false }`
[INFO] [stderr]    Compiling synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/disassembler.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     loop {
[INFO] [stdout] 26 | |         print!("{}: ", vm.get_ip());
[INFO] [stdout] 27 | |         match vm.get_next_operation() {
[INFO] [stdout] 28 | |             Ok(operation) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 82 | |         }
[INFO] [stdout] 83 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 84 | 
[INFO] [stdout] 85 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "0b6d78cf8afca4bd5ebd620b8bc4d6d0798fe0fdc136eb760fcf2c4866bfaafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6d78cf8afca4bd5ebd620b8bc4d6d0798fe0fdc136eb760fcf2c4866bfaafb", kill_on_drop: false }`
[INFO] [stdout] 0b6d78cf8afca4bd5ebd620b8bc4d6d0798fe0fdc136eb760fcf2c4866bfaafb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fec7f383a2a141b205c34efc95ab4b8aa8aeef31dddcb4e7b0cba3c75480b422
[INFO] running `Command { std: "docker" "start" "-a" "fec7f383a2a141b205c34efc95ab4b8aa8aeef31dddcb4e7b0cba3c75480b422", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/bin/disassembler.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | /     loop {
[INFO] [stderr] 26 | |         print!("{}: ", vm.get_ip());
[INFO] [stderr] 27 | |         match vm.get_next_operation() {
[INFO] [stderr] 28 | |             Ok(operation) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 82 | |         }
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 84 | 
[INFO] [stderr] 85 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `synacor_challenge` (bin "disassembler" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synacor_challenge-3d455d91953e1f6e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test vm::tests::add_and_output_test ... ok
[INFO] [stdout] test vm::tests::jump_test ... ok
[INFO] [stdout] test vm::tests::state_test ... ok
[INFO] [stdout] test vm::tests::not_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ackermann-b81be86c6ceb2ac3)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/disassembler-2ef0dcaf94022a80)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/interactive-2b4cca2bfaef58fc)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/random_walk-6f1c49c383f9e191)
[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] [stderr]    Doc-tests synacor_challenge
[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] [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" "fec7f383a2a141b205c34efc95ab4b8aa8aeef31dddcb4e7b0cba3c75480b422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fec7f383a2a141b205c34efc95ab4b8aa8aeef31dddcb4e7b0cba3c75480b422", kill_on_drop: false }`
[INFO] [stdout] fec7f383a2a141b205c34efc95ab4b8aa8aeef31dddcb4e7b0cba3c75480b422