[INFO] updating cached repository https://github.com/IvanovPvl/rubl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b302a6da754a86d8ee6c276546d1ada5a33e87eb
[INFO] testing IvanovPvl/rubl against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIvanovPvl%2Frubl" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IvanovPvl/rubl on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IvanovPvl/rubl
[INFO] finished tweaking git repo https://github.com/IvanovPvl/rubl
[INFO] tweaked toml for git repo https://github.com/IvanovPvl/rubl written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/IvanovPvl/rubl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d035b941ec8a1f9ee51f5a67e68c29b402691c14580a92842ab935b26f7b7919
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d035b941ec8a1f9ee51f5a67e68c29b402691c14580a92842ab935b26f7b7919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d035b941ec8a1f9ee51f5a67e68c29b402691c14580a92842ab935b26f7b7919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d035b941ec8a1f9ee51f5a67e68c29b402691c14580a92842ab935b26f7b7919", kill_on_drop: false }`
[INFO] [stdout] d035b941ec8a1f9ee51f5a67e68c29b402691c14580a92842ab935b26f7b7919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e4a6e5b09a7cf386f8e4aa445582f01489342353c947dc879746ee6edac59ae6
[INFO] running `Command { std: "docker" "start" "-a" "e4a6e5b09a7cf386f8e4aa445582f01489342353c947dc879746ee6edac59ae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling digest v0.7.2
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling rubl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `blockchain::Blockchain`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use blockchain::Blockchain;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Blockchain`
[INFO] [stdout]  --> src/blockchain.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Blockchain {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/blockchain.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new() -> Blockchain {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_block`
[INFO] [stdout]   --> src/blockchain.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn add_block(&mut self, data: Vec<u8>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `Command { std: "docker" "inspect" "e4a6e5b09a7cf386f8e4aa445582f01489342353c947dc879746ee6edac59ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a6e5b09a7cf386f8e4aa445582f01489342353c947dc879746ee6edac59ae6", kill_on_drop: false }`
[INFO] [stdout] e4a6e5b09a7cf386f8e4aa445582f01489342353c947dc879746ee6edac59ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e2a57a62d98218ea8d4f1843ab04f342ff85c8f348d8c5f57ee223e1b18abb8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e2a57a62d98218ea8d4f1843ab04f342ff85c8f348d8c5f57ee223e1b18abb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `blockchain::Blockchain`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use blockchain::Blockchain;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Blockchain`
[INFO] [stdout]  --> src/blockchain.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Blockchain {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/blockchain.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new() -> Blockchain {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_block`
[INFO] [stdout]   --> src/blockchain.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn add_block(&mut self, data: Vec<u8>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "0e2a57a62d98218ea8d4f1843ab04f342ff85c8f348d8c5f57ee223e1b18abb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2a57a62d98218ea8d4f1843ab04f342ff85c8f348d8c5f57ee223e1b18abb8", kill_on_drop: false }`
[INFO] [stdout] 0e2a57a62d98218ea8d4f1843ab04f342ff85c8f348d8c5f57ee223e1b18abb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa39d442a9f4e507d277b78e33cea98eea54c827f37faf7c52848cbb671ffd66
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa39d442a9f4e507d277b78e33cea98eea54c827f37faf7c52848cbb671ffd66", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `blockchain::Blockchain`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use blockchain::Blockchain;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Blockchain`
[INFO] [stderr]  --> src/blockchain.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Blockchain {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/blockchain.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> Blockchain {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_block`
[INFO] [stderr]   --> src/blockchain.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn add_block(&mut self, data: Vec<u8>) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rubl-e04915dbe9dda3a9
[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 `Command { std: "docker" "inspect" "fa39d442a9f4e507d277b78e33cea98eea54c827f37faf7c52848cbb671ffd66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa39d442a9f4e507d277b78e33cea98eea54c827f37faf7c52848cbb671ffd66", kill_on_drop: false }`
[INFO] [stdout] fa39d442a9f4e507d277b78e33cea98eea54c827f37faf7c52848cbb671ffd66