[INFO] cloning repository https://github.com/mkpankov/bisc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkpankov/bisc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkpankov%2Fbisc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkpankov%2Fbisc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5346b33c00e5fe1fc19c26e00d57e8cedd9051ca
[INFO] testing mkpankov/bisc against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkpankov%2Fbisc" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkpankov/bisc on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mkpankov/bisc
[INFO] finished tweaking git repo https://github.com/mkpankov/bisc
[INFO] tweaked toml for git repo https://github.com/mkpankov/bisc written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mkpankov/bisc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.3.2
[INFO] [stderr]   Downloaded syn v1.0.64
[INFO] [stderr]   Downloaded libc v0.2.89
[INFO] [stderr]   Downloaded serde_derive v1.0.124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 9d89e686ca85e4cf006ea08261e1d2359c04e28fdf6628421da60c3daecddf7d
[INFO] running `Command { std: "docker" "start" "-a" "9d89e686ca85e4cf006ea08261e1d2359c04e28fdf6628421da60c3daecddf7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d89e686ca85e4cf006ea08261e1d2359c04e28fdf6628421da60c3daecddf7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d89e686ca85e4cf006ea08261e1d2359c04e28fdf6628421da60c3daecddf7d", kill_on_drop: false }`
[INFO] [stdout] 9d89e686ca85e4cf006ea08261e1d2359c04e28fdf6628421da60c3daecddf7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1cfaf34a0a8b4d03736df9b54b598867e89fba9549e136c1d528633b2724ade
[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" "c1cfaf34a0a8b4d03736df9b54b598867e89fba9549e136c1d528633b2724ade", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling biscuit v0.5.0
[INFO] [stderr]    Compiling bisc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:219:5
[INFO] [stdout]     |
[INFO] [stdout] 219 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.80s
[INFO] running `Command { std: "docker" "inspect" "c1cfaf34a0a8b4d03736df9b54b598867e89fba9549e136c1d528633b2724ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1cfaf34a0a8b4d03736df9b54b598867e89fba9549e136c1d528633b2724ade", kill_on_drop: false }`
[INFO] [stdout] c1cfaf34a0a8b4d03736df9b54b598867e89fba9549e136c1d528633b2724ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--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] e7ef944a57337f3142de7a5d42a5d08f6fb9b64a39fad315c8479e5e54578a23
[INFO] running `Command { std: "docker" "start" "-a" "e7ef944a57337f3142de7a5d42a5d08f6fb9b64a39fad315c8479e5e54578a23", kill_on_drop: false }`
[INFO] [stderr]    Compiling bisc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:219:5
[INFO] [stdout]     |
[INFO] [stdout] 219 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nonce_counter` is never read
[INFO] [stdout]    --> src/main.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "e7ef944a57337f3142de7a5d42a5d08f6fb9b64a39fad315c8479e5e54578a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ef944a57337f3142de7a5d42a5d08f6fb9b64a39fad315c8479e5e54578a23", kill_on_drop: false }`
[INFO] [stdout] e7ef944a57337f3142de7a5d42a5d08f6fb9b64a39fad315c8479e5e54578a23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db77e444f8ad9faafc4547c2c28a92a47b204eb7230dbb928433327ae6c67197
[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" "db77e444f8ad9faafc4547c2c28a92a47b204eb7230dbb928433327ae6c67197", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `nonce_counter` is never read
[INFO] [stderr]    --> src/main.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     nonce_counter = nonce_counter + 1u8;
[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: value assigned to `nonce_counter` is never read
[INFO] [stderr]    --> src/main.rs:219:5
[INFO] [stderr]     |
[INFO] [stderr] 219 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `nonce_counter` is never read
[INFO] [stderr]    --> src/main.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     nonce_counter = nonce_counter + 1u8;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `bisc` (bin "bisc" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bisc-8cbbfaee3ae0ce2d)
[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" "db77e444f8ad9faafc4547c2c28a92a47b204eb7230dbb928433327ae6c67197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db77e444f8ad9faafc4547c2c28a92a47b204eb7230dbb928433327ae6c67197", kill_on_drop: false }`
[INFO] [stdout] db77e444f8ad9faafc4547c2c28a92a47b204eb7230dbb928433327ae6c67197