[INFO] cloning repository https://github.com/MisakaE/MisakaEblog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MisakaE/MisakaEblog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMisakaE%2FMisakaEblog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMisakaE%2FMisakaEblog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15c48b8a3a023fc318ff64879ad02f03e3b8a2aa
[INFO] checking MisakaE/MisakaEblog 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%2FMisakaE%2FMisakaEblog" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MisakaE/MisakaEblog
[INFO] finished tweaking git repo https://github.com/MisakaE/MisakaEblog
[INFO] tweaked toml for git repo https://github.com/MisakaE/MisakaEblog written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MisakaE/MisakaEblog 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/MisakaE/MisakaEblog 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2216b7873c04c74b71b6171918bf4ad3fd19825b53f239e9d8e30ec1bf3a65fc
[INFO] running `Command { std: "docker" "start" "-a" "2216b7873c04c74b71b6171918bf4ad3fd19825b53f239e9d8e30ec1bf3a65fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2216b7873c04c74b71b6171918bf4ad3fd19825b53f239e9d8e30ec1bf3a65fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2216b7873c04c74b71b6171918bf4ad3fd19825b53f239e9d8e30ec1bf3a65fc", kill_on_drop: false }`
[INFO] [stdout] 2216b7873c04c74b71b6171918bf4ad3fd19825b53f239e9d8e30ec1bf3a65fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fa55f9d96d255b54eb73ee8f3fff9f3e5dcee79e4f4b34c244df05ad4a9652b2
[INFO] running `Command { std: "docker" "start" "-a" "fa55f9d96d255b54eb73ee8f3fff9f3e5dcee79e4f4b34c244df05ad4a9652b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
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[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
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[INFO] [stderr]    Compiling proc-macro2 v1.0.86
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[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling cookie v0.18.1
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[INFO] [stderr]     Checking rustls-webpki v0.101.7
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[INFO] [stderr]    Compiling devise_codegen v0.4.1
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[INFO] [stderr]    Compiling devise v0.4.1
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[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]    Compiling rocket_http v0.5.1
[INFO] [stderr]    Compiling rocket_codegen v0.5.1
[INFO] [stderr]     Checking tokio-util v0.7.11
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[INFO] [stderr]     Checking toml v0.8.17
[INFO] [stderr]     Checking web_server 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/app/mod.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub async fn blog(id:String)->Option<(ContentType,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/app/mod.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub async fn blog(id:String)->Option<(ContentType,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 `web_server` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `web_server` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fa55f9d96d255b54eb73ee8f3fff9f3e5dcee79e4f4b34c244df05ad4a9652b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa55f9d96d255b54eb73ee8f3fff9f3e5dcee79e4f4b34c244df05ad4a9652b2", kill_on_drop: false }`
[INFO] [stdout] fa55f9d96d255b54eb73ee8f3fff9f3e5dcee79e4f4b34c244df05ad4a9652b2