[INFO] cloning repository https://github.com/lasse16/cstars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lasse16/cstars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasse16%2Fcstars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasse16%2Fcstars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d46e18a193c331355184274f74ac6f4427b6413
[INFO] checking lasse16/cstars against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flasse16%2Fcstars" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lasse16/cstars
[INFO] finished tweaking git repo https://github.com/lasse16/cstars
[INFO] tweaked toml for git repo https://github.com/lasse16/cstars written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lasse16/cstars on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lasse16/cstars 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3de295e39824f68bc28f29aad58b1dde32162bcac176509308508312dfe20340
[INFO] running `Command { std: "docker" "start" "-a" "3de295e39824f68bc28f29aad58b1dde32162bcac176509308508312dfe20340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de295e39824f68bc28f29aad58b1dde32162bcac176509308508312dfe20340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de295e39824f68bc28f29aad58b1dde32162bcac176509308508312dfe20340", kill_on_drop: false }`
[INFO] [stdout] 3de295e39824f68bc28f29aad58b1dde32162bcac176509308508312dfe20340
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f47d52e000f6793d46a9d631ea2c6d7571083528660699d2f763a474dd6072a
[INFO] running `Command { std: "docker" "start" "-a" "5f47d52e000f6793d46a9d631ea2c6d7571083528660699d2f763a474dd6072a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking httparse v1.6.0
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]     Checking psl-types v2.0.10
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking indexmap v1.8.0
[INFO] [stderr]     Checking zeroize v1.5.4
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking publicsuffix v2.1.1
[INFO] [stderr]     Checking html_editor v0.5.1
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking secrecy v0.8.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking cookie_store v0.15.1
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking lib_cstars v0.1.0 (/opt/rustwide/workdir/lib_cstars)
[INFO] [stderr]     Checking cstars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         solution: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         solution: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cstars` (bin "cstars") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cstars` (bin "cstars" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5f47d52e000f6793d46a9d631ea2c6d7571083528660699d2f763a474dd6072a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f47d52e000f6793d46a9d631ea2c6d7571083528660699d2f763a474dd6072a", kill_on_drop: false }`
[INFO] [stdout] 5f47d52e000f6793d46a9d631ea2c6d7571083528660699d2f763a474dd6072a