[INFO] fetching crate palin 0.8.0...
[INFO] testing palin-0.8.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate palin 0.8.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate palin 0.8.0
[INFO] finished tweaking crates.io crate palin 0.8.0
[INFO] tweaked toml for crates.io crate palin 0.8.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate palin 0.8.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84134e2f5c087828385c158f145d2cda3b470b23bf8e53210d16e58ad543331a
[INFO] running `Command { std: "docker" "start" "-a" "84134e2f5c087828385c158f145d2cda3b470b23bf8e53210d16e58ad543331a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84134e2f5c087828385c158f145d2cda3b470b23bf8e53210d16e58ad543331a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84134e2f5c087828385c158f145d2cda3b470b23bf8e53210d16e58ad543331a", kill_on_drop: false }`
[INFO] [stdout] 84134e2f5c087828385c158f145d2cda3b470b23bf8e53210d16e58ad543331a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10859e7c6992365f8b1b4d2354d4089ae1cff2f883de79c1d31668cc44545f7c
[INFO] running `Command { std: "docker" "start" "-a" "10859e7c6992365f8b1b4d2354d4089ae1cff2f883de79c1d31668cc44545f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling palin v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/lib.rs:226:32
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 let mut name = String::new();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]    --> src/lib.rs:228:35
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let mut version = String::new();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `update_info` is never read
[INFO] [stdout]     --> src/lib.rs:1458:29
[INFO] [stdout]      |
[INFO] [stdout] 1458 | ...                   update_info = split.to_string()
[INFO] [stdout]      |                       ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "10859e7c6992365f8b1b4d2354d4089ae1cff2f883de79c1d31668cc44545f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10859e7c6992365f8b1b4d2354d4089ae1cff2f883de79c1d31668cc44545f7c", kill_on_drop: false }`
[INFO] [stdout] 10859e7c6992365f8b1b4d2354d4089ae1cff2f883de79c1d31668cc44545f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0692831ef9d80c49c7f31b0dd6a77e0799d114e6867e0e2f67a820695e63df79
[INFO] running `Command { std: "docker" "start" "-a" "0692831ef9d80c49c7f31b0dd6a77e0799d114e6867e0e2f67a820695e63df79", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/lib.rs:226:32
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 let mut name = String::new();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]    --> src/lib.rs:228:35
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let mut version = String::new();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `update_info` is never read
[INFO] [stdout]     --> src/lib.rs:1458:29
[INFO] [stdout]      |
[INFO] [stdout] 1458 | ...                   update_info = split.to_string()
[INFO] [stdout]      |                       ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling palin v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/lib.rs:226:32
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 let mut name = String::new();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `version` is never read
[INFO] [stdout]    --> src/lib.rs:228:35
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 let mut version = String::new();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `update_info` is never read
[INFO] [stdout]     --> src/lib.rs:1458:29
[INFO] [stdout]      |
[INFO] [stdout] 1458 | ...                   update_info = split.to_string()
[INFO] [stdout]      |                       ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "0692831ef9d80c49c7f31b0dd6a77e0799d114e6867e0e2f67a820695e63df79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0692831ef9d80c49c7f31b0dd6a77e0799d114e6867e0e2f67a820695e63df79", kill_on_drop: false }`
[INFO] [stdout] 0692831ef9d80c49c7f31b0dd6a77e0799d114e6867e0e2f67a820695e63df79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a44ef35d1fc3a8cba022cebd676c409e8687d056b08d44ff21d7f5c11aed15a6
[INFO] running `Command { std: "docker" "start" "-a" "a44ef35d1fc3a8cba022cebd676c409e8687d056b08d44ff21d7f5c11aed15a6", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]    --> src/lib.rs:226:32
[INFO] [stderr]     |
[INFO] [stderr] 226 |                 let mut name = String::new();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `version` is never read
[INFO] [stderr]    --> src/lib.rs:228:35
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 let mut version = String::new();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `update_info` is never read
[INFO] [stderr]     --> src/lib.rs:1458:29
[INFO] [stderr]      |
[INFO] [stderr] 1458 | ...                   update_info = split.to_string()
[INFO] [stderr]      |                       ^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `palin` (lib) generated 3 warnings
[INFO] [stderr] warning: `palin` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/palin-b1a69f17856789d7)
[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 palin
[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" "a44ef35d1fc3a8cba022cebd676c409e8687d056b08d44ff21d7f5c11aed15a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44ef35d1fc3a8cba022cebd676c409e8687d056b08d44ff21d7f5c11aed15a6", kill_on_drop: false }`
[INFO] [stdout] a44ef35d1fc3a8cba022cebd676c409e8687d056b08d44ff21d7f5c11aed15a6