[INFO] cloning repository https://github.com/cramertj/link-error-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cramertj/link-error-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcramertj%2Flink-error-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcramertj%2Flink-error-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4b055cadec6caa3aefa908df65e3ac1c2ee7506
[INFO] testing cramertj/link-error-repro against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcramertj%2Flink-error-repro" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cramertj/link-error-repro on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cramertj/link-error-repro
[INFO] finished tweaking git repo https://github.com/cramertj/link-error-repro
[INFO] tweaked toml for git repo https://github.com/cramertj/link-error-repro written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/cramertj/link-error-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00dc347555bb00a296820a294c589c12d2182f725eacefca0434d905e1117ae6
[INFO] running `Command { std: "docker" "start" "-a" "00dc347555bb00a296820a294c589c12d2182f725eacefca0434d905e1117ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00dc347555bb00a296820a294c589c12d2182f725eacefca0434d905e1117ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00dc347555bb00a296820a294c589c12d2182f725eacefca0434d905e1117ae6", kill_on_drop: false }`
[INFO] [stdout] 00dc347555bb00a296820a294c589c12d2182f725eacefca0434d905e1117ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e31b6e2d6d7d1f2a75e952fe007c17f6badcb6d6d5bef33b3c865765276a4e10
[INFO] running `Command { std: "docker" "start" "-a" "e31b6e2d6d7d1f2a75e952fe007c17f6badcb6d6d5bef33b3c865765276a4e10", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.4
[INFO] [stderr]    Compiling structopt-derive v0.2.8
[INFO] [stderr]    Compiling structopt v0.2.8
[INFO] [stderr]    Compiling rolldice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let config = Config::from_args();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `number_of_dice`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     number_of_dice: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout] 8  | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dice_per_row`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     dice_per_row: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout] 8  | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "e31b6e2d6d7d1f2a75e952fe007c17f6badcb6d6d5bef33b3c865765276a4e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31b6e2d6d7d1f2a75e952fe007c17f6badcb6d6d5bef33b3c865765276a4e10", kill_on_drop: false }`
[INFO] [stdout] e31b6e2d6d7d1f2a75e952fe007c17f6badcb6d6d5bef33b3c865765276a4e10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73b10b9f8b5e97d81e70498624c462f79d29d024b6a9c3a3b9300a5d5332c2cd
[INFO] running `Command { std: "docker" "start" "-a" "73b10b9f8b5e97d81e70498624c462f79d29d024b6a9c3a3b9300a5d5332c2cd", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling rolldice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let config = Config::from_args();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `number_of_dice`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     number_of_dice: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout] 8  | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dice_per_row`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     dice_per_row: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout] 8  | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.30s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/unused_third_party_build-4ad67287fabfda06)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rolldice-ebc38d957a6f5e91)
[INFO] running `Command { std: "docker" "inspect" "73b10b9f8b5e97d81e70498624c462f79d29d024b6a9c3a3b9300a5d5332c2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b10b9f8b5e97d81e70498624c462f79d29d024b6a9c3a3b9300a5d5332c2cd", kill_on_drop: false }`
[INFO] [stdout] 73b10b9f8b5e97d81e70498624c462f79d29d024b6a9c3a3b9300a5d5332c2cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d60aa70d7c6a4a39ccc1cad2fa19f9c1ff1ad87ec7c1a9c4a8c78c2e71ab6223
[INFO] running `Command { std: "docker" "start" "-a" "d60aa70d7c6a4a39ccc1cad2fa19f9c1ff1ad87ec7c1a9c4a8c78c2e71ab6223", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/main.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let config = Config::from_args();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `number_of_dice`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     number_of_dice: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:8:21
[INFO] [stderr]    |
[INFO] [stderr] 8  | #[derive(StructOpt, Debug)]
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `dice_per_row`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     dice_per_row: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:8:21
[INFO] [stderr]    |
[INFO] [stderr] 8  | #[derive(StructOpt, Debug)]
[INFO] [stderr]    |                     ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `rolldice` (bin "rolldice" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unused_third_party_build-4ad67287fabfda06)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rolldice-ebc38d957a6f5e91)
[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] [stderr]    Doc-tests unused_third_party_build
[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" "d60aa70d7c6a4a39ccc1cad2fa19f9c1ff1ad87ec7c1a9c4a8c78c2e71ab6223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d60aa70d7c6a4a39ccc1cad2fa19f9c1ff1ad87ec7c1a9c4a8c78c2e71ab6223", kill_on_drop: false }`
[INFO] [stdout] d60aa70d7c6a4a39ccc1cad2fa19f9c1ff1ad87ec7c1a9c4a8c78c2e71ab6223