[INFO] cloning repository https://github.com/peterpeerdeman/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peterpeerdeman/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterpeerdeman%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterpeerdeman%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e3cdb3cc395570c70d020f0a2eeaadc715546b2
[INFO] testing peterpeerdeman/learning-rust against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterpeerdeman%2Flearning-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/peterpeerdeman/learning-rust
[INFO] finished tweaking git repo https://github.com/peterpeerdeman/learning-rust
[INFO] tweaked toml for git repo https://github.com/peterpeerdeman/learning-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/peterpeerdeman/learning-rust on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/peterpeerdeman/learning-rust 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83846fcb61b8e1f16ef50df6003e3a4c6a246a383e823d0b78d7e5d29697b211
[INFO] running `Command { std: "docker" "start" "-a" "83846fcb61b8e1f16ef50df6003e3a4c6a246a383e823d0b78d7e5d29697b211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83846fcb61b8e1f16ef50df6003e3a4c6a246a383e823d0b78d7e5d29697b211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83846fcb61b8e1f16ef50df6003e3a4c6a246a383e823d0b78d7e5d29697b211", kill_on_drop: false }`
[INFO] [stdout] 83846fcb61b8e1f16ef50df6003e3a4c6a246a383e823d0b78d7e5d29697b211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9e9c79d107f724e6cbfc3dcdd1f800d23f00fb5fbe35112ced492fe4f33d034
[INFO] running `Command { std: "docker" "start" "-a" "e9e9c79d107f724e6cbfc3dcdd1f800d23f00fb5fbe35112ced492fe4f33d034", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `weight_gram` are never read
[INFO] [stdout]    --> src/main.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 410 |     struct Phone {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 411 |         name: &'static str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 412 |         weight_gram: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Phone` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]    --> src/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 583 |     struct LargeStruct {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 584 |         data: [u8; 1_000_000],
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LargeStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `AnotherI8` and `OneMoreI8` are never constructed
[INFO] [stdout]    --> src/main.rs:598:9
[INFO] [stdout]     |
[INFO] [stdout] 596 |     enum EnumOfNumbers {
[INFO] [stdout]     |          ------------- variants in this enum
[INFO] [stdout] 597 |         I8(i8),
[INFO] [stdout] 598 |         AnotherI8(i8),
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 599 |         OneMoreI8(i8),
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `Command { std: "docker" "inspect" "e9e9c79d107f724e6cbfc3dcdd1f800d23f00fb5fbe35112ced492fe4f33d034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e9c79d107f724e6cbfc3dcdd1f800d23f00fb5fbe35112ced492fe4f33d034", kill_on_drop: false }`
[INFO] [stdout] e9e9c79d107f724e6cbfc3dcdd1f800d23f00fb5fbe35112ced492fe4f33d034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c3e4e3284c1115c29afffdd38989918260a4abdcef1ec5d95b754f8d289c77
[INFO] running `Command { std: "docker" "start" "-a" "c4c3e4e3284c1115c29afffdd38989918260a4abdcef1ec5d95b754f8d289c77", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `weight_gram` are never read
[INFO] [stdout]    --> src/main.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 410 |     struct Phone {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 411 |         name: &'static str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 412 |         weight_gram: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Phone` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]    --> src/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 583 |     struct LargeStruct {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] 584 |         data: [u8; 1_000_000],
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LargeStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `AnotherI8` and `OneMoreI8` are never constructed
[INFO] [stdout]    --> src/main.rs:598:9
[INFO] [stdout]     |
[INFO] [stdout] 596 |     enum EnumOfNumbers {
[INFO] [stdout]     |          ------------- variants in this enum
[INFO] [stdout] 597 |         I8(i8),
[INFO] [stdout] 598 |         AnotherI8(i8),
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 599 |         OneMoreI8(i8),
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "c4c3e4e3284c1115c29afffdd38989918260a4abdcef1ec5d95b754f8d289c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c3e4e3284c1115c29afffdd38989918260a4abdcef1ec5d95b754f8d289c77", kill_on_drop: false }`
[INFO] [stdout] c4c3e4e3284c1115c29afffdd38989918260a4abdcef1ec5d95b754f8d289c77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00f6c437a0b5979d93c8dc378055d1489866122c8411c3a20412597d2d329023
[INFO] running `Command { std: "docker" "start" "-a" "00f6c437a0b5979d93c8dc378055d1489866122c8411c3a20412597d2d329023", kill_on_drop: false }`
[INFO] [stderr] warning: fields `name` and `weight_gram` are never read
[INFO] [stderr]    --> src/main.rs:411:9
[INFO] [stderr]     |
[INFO] [stderr] 410 |     struct Phone {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 411 |         name: &'static str,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 412 |         weight_gram: u32,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Phone` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `data` is never read
[INFO] [stderr]    --> src/main.rs:584:9
[INFO] [stderr]     |
[INFO] [stderr] 583 |     struct LargeStruct {
[INFO] [stderr]     |            ----------- field in this struct
[INFO] [stderr] 584 |         data: [u8; 1_000_000],
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `LargeStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `AnotherI8` and `OneMoreI8` are never constructed
[INFO] [stderr]    --> src/main.rs:598:9
[INFO] [stderr]     |
[INFO] [stderr] 596 |     enum EnumOfNumbers {
[INFO] [stderr]     |          ------------- variants in this enum
[INFO] [stderr] 597 |         I8(i8),
[INFO] [stderr] 598 |         AnotherI8(i8),
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 599 |         OneMoreI8(i8),
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-rust` (bin "learning-rust" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_rust-1886ba60f4cb6983)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::mutability_returns_integer ... ok
[INFO] [stdout] test tests::string_factory_returns_string ... ok
[INFO] [stdout] test tests::types_returns_char ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00f6c437a0b5979d93c8dc378055d1489866122c8411c3a20412597d2d329023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f6c437a0b5979d93c8dc378055d1489866122c8411c3a20412597d2d329023", kill_on_drop: false }`
[INFO] [stdout] 00f6c437a0b5979d93c8dc378055d1489866122c8411c3a20412597d2d329023