[INFO] cloning repository https://github.com/iamwwc/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamwwc/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eb6244de3c32c62ef24c84bb5cb3eb5819b5d78
[INFO] testing iamwwc/rust-by-example against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamwwc/rust-by-example on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] finished tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] tweaked toml for git repo https://github.com/iamwwc/rust-by-example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamwwc/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19d2355dcdf5014521b6d2ef0bd904aad2afe53bc47c66e43fb31eb822d07b8d
[INFO] running `Command { std: "docker" "start" "-a" "19d2355dcdf5014521b6d2ef0bd904aad2afe53bc47c66e43fb31eb822d07b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19d2355dcdf5014521b6d2ef0bd904aad2afe53bc47c66e43fb31eb822d07b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d2355dcdf5014521b6d2ef0bd904aad2afe53bc47c66e43fb31eb822d07b8d", kill_on_drop: false }`
[INFO] [stdout] 19d2355dcdf5014521b6d2ef0bd904aad2afe53bc47c66e43fb31eb822d07b8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da1ccc4fa3446901f7b3b142ef765e01c89ab5bf7feaa4bb1cfa84076b97a2a3
[INFO] running `Command { std: "docker" "start" "-a" "da1ccc4fa3446901f7b3b142ef765e01c89ab5bf7feaa4bb1cfa84076b97a2a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Structure(bool);
[INFO] [stdout]    |            --------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            -------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ----------------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct DebugPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct Structure(i32);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     struct Deep(Structure);
[INFO] [stdout]    |            ---- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/bin/format/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     struct Person<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 46 |         name: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 47 |         age: u8
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "da1ccc4fa3446901f7b3b142ef765e01c89ab5bf7feaa4bb1cfa84076b97a2a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1ccc4fa3446901f7b3b142ef765e01c89ab5bf7feaa4bb1cfa84076b97a2a3", kill_on_drop: false }`
[INFO] [stdout] da1ccc4fa3446901f7b3b142ef765e01c89ab5bf7feaa4bb1cfa84076b97a2a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25eaab6cd697d7db6c8d3018e611d67bf2cbf9d542f9b4214acc3f49ee214631
[INFO] running `Command { std: "docker" "start" "-a" "25eaab6cd697d7db6c8d3018e611d67bf2cbf9d542f9b4214acc3f49ee214631", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Structure(bool);
[INFO] [stdout]    |            --------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            -------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ----------------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct DebugPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct Structure(i32);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     struct Deep(Structure);
[INFO] [stdout]    |            ---- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/bin/format/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     struct Person<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 46 |         name: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 47 |         age: u8
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "25eaab6cd697d7db6c8d3018e611d67bf2cbf9d542f9b4214acc3f49ee214631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25eaab6cd697d7db6c8d3018e611d67bf2cbf9d542f9b4214acc3f49ee214631", kill_on_drop: false }`
[INFO] [stdout] 25eaab6cd697d7db6c8d3018e611d67bf2cbf9d542f9b4214acc3f49ee214631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0025b69121364a226bb18534d5de6909a5f57864ddb637719f8ce145d7921183
[INFO] running `Command { std: "docker" "start" "-a" "0025b69121364a226bb18534d5de6909a5f57864ddb637719f8ce145d7921183", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/3d57d761b93cc4fd70ce48e03a830d42a7770e8ff0b1d71bab5b4354cff12074/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "0025b69121364a226bb18534d5de6909a5f57864ddb637719f8ce145d7921183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0025b69121364a226bb18534d5de6909a5f57864ddb637719f8ce145d7921183", kill_on_drop: false }`
[INFO] [stdout] 0025b69121364a226bb18534d5de6909a5f57864ddb637719f8ce145d7921183
