[INFO] cloning repository https://github.com/maolonglong/identicon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maolonglong/identicon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaolonglong%2Fidenticon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaolonglong%2Fidenticon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f02a741fad137e44810cd88abeef70b8844365cd
[INFO] checking maolonglong/identicon 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%2Fmaolonglong%2Fidenticon" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/maolonglong/identicon
[INFO] finished tweaking git repo https://github.com/maolonglong/identicon
[INFO] tweaked toml for git repo https://github.com/maolonglong/identicon written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maolonglong/identicon 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/maolonglong/identicon 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 752b7e2891ee39ec91ac72e2652d125745d05c80714a80da586c2b276e429204
[INFO] running `Command { std: "docker" "start" "-a" "752b7e2891ee39ec91ac72e2652d125745d05c80714a80da586c2b276e429204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "752b7e2891ee39ec91ac72e2652d125745d05c80714a80da586c2b276e429204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752b7e2891ee39ec91ac72e2652d125745d05c80714a80da586c2b276e429204", kill_on_drop: false }`
[INFO] [stdout] 752b7e2891ee39ec91ac72e2652d125745d05c80714a80da586c2b276e429204
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9ec694fdf22d2e7f714e3f95d1e92e600810582837349da66040f75c584c8ff7
[INFO] running `Command { std: "docker" "start" "-a" "9ec694fdf22d2e7f714e3f95d1e92e600810582837349da66040f75c584c8ff7", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-macros v2.2.0
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[INFO] [stderr]    Compiling thiserror-impl v1.0.57
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[INFO] [stderr]     Checking identicon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/nibbler.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub(crate) fn new(bytes: &[u8]) -> Nibbler {
[INFO] [stdout]   |                              ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub(crate) fn new(bytes: &[u8]) -> Nibbler<'_> {
[INFO] [stdout]   |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/nibbler.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub(crate) fn new(bytes: &[u8]) -> Nibbler {
[INFO] [stdout]   |                              ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub(crate) fn new(bytes: &[u8]) -> Nibbler<'_> {
[INFO] [stdout]   |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let entry = cache
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .get_or_insert_async(&name, async {
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |         })
[INFO] [stdout] 56 | |         .await
[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<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:40:43
[INFO] [stdout]    |
[INFO] [stdout] 40 |           .get_or_insert_async(&name, async {
[INFO] [stdout]    |  ___________________________________________^
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |             })
[INFO] [stdout] 55 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 | /             Ok::<_, Infallible>(CacheEntry {
[INFO] [stdout] 52 | |                 image: buf.into(),
[INFO] [stdout] 53 | |                 etag: hex::encode(hash).into(),
[INFO] [stdout] 54 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:56:10
[INFO] [stdout]    |
[INFO] [stdout] 56 |         .await
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let entry = cache
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .get_or_insert_async(&name, async {
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |         })
[INFO] [stdout] 56 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let entry = cache
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .get_or_insert_async(&name, async {
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |         })
[INFO] [stdout] 56 | |         .await
[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<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:40:43
[INFO] [stdout]    |
[INFO] [stdout] 40 |           .get_or_insert_async(&name, async {
[INFO] [stdout]    |  ___________________________________________^
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |             })
[INFO] [stdout] 55 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 | /             Ok::<_, Infallible>(CacheEntry {
[INFO] [stdout] 52 | |                 image: buf.into(),
[INFO] [stdout] 53 | |                 etag: hex::encode(hash).into(),
[INFO] [stdout] 54 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:56:10
[INFO] [stdout]    |
[INFO] [stdout] 56 |         .await
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CacheEntry, Infallible>
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let entry = cache
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .get_or_insert_async(&name, async {
[INFO] [stdout] 41 | |             debug!("cache missing");
[INFO] [stdout] 42 | |             let image = identicon::gen(name.as_bytes());
[INFO] [stdout] ...  |
[INFO] [stdout] 55 | |         })
[INFO] [stdout] 56 | |         .await
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `identicon` (bin "identicon") due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `identicon` (bin "identicon" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "9ec694fdf22d2e7f714e3f95d1e92e600810582837349da66040f75c584c8ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec694fdf22d2e7f714e3f95d1e92e600810582837349da66040f75c584c8ff7", kill_on_drop: false }`
[INFO] [stdout] 9ec694fdf22d2e7f714e3f95d1e92e600810582837349da66040f75c584c8ff7
