[INFO] fetching crate natural_slice 0.1.2... [INFO] checking natural_slice-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate natural_slice 0.1.2 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate natural_slice 0.1.2 [INFO] finished tweaking crates.io crate natural_slice 0.1.2 [INFO] tweaked toml for crates.io crate natural_slice 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate natural_slice 0.1.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 20 packages to latest compatible versions [INFO] [stderr] Adding factorial v0.2.1 (available: v0.4.0) [INFO] [stderr] Adding rand v0.7.3 (available: v0.9.2) [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ec5e2f1d3d9c967f0589763a286867bc74413d84bc7882e7a06484dd343f092c [INFO] running `Command { std: "docker" "start" "-a" "ec5e2f1d3d9c967f0589763a286867bc74413d84bc7882e7a06484dd343f092c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec5e2f1d3d9c967f0589763a286867bc74413d84bc7882e7a06484dd343f092c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec5e2f1d3d9c967f0589763a286867bc74413d84bc7882e7a06484dd343f092c", kill_on_drop: false }` [INFO] [stdout] ec5e2f1d3d9c967f0589763a286867bc74413d84bc7882e7a06484dd343f092c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fc89324fe075f0165b192ba9f1b878acf8f3387660f508ab086660e126300578 [INFO] running `Command { std: "docker" "start" "-a" "fc89324fe075f0165b192ba9f1b878acf8f3387660f508ab086660e126300578", kill_on_drop: false }` [INFO] [stderr] Checking radix_fmt v1.0.0 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking factorial v0.2.1 [INFO] [stderr] Checking natural_slice v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/position.rs:90:24 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [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 [INFO] [stdout] --> src/position.rs:90:39 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/position.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/position.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/position.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/position.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!(Ok(*position), encode_position(data, &is_interesting)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:106:17 [INFO] [stdout] | [INFO] [stdout] 106 | Ok(expected), [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | decode_position(*position, num_interesting, data.len()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | / assert_eq!( [INFO] [stdout] 106 | | Ok(expected), [INFO] [stdout] 107 | | decode_position(*position, num_interesting, data.len()) [INFO] [stdout] 108 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | / assert_eq!( [INFO] [stdout] 106 | | Ok(expected), [INFO] [stdout] 107 | | decode_position(*position, num_interesting, data.len()) [INFO] [stdout] 108 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | / assert_eq!( [INFO] [stdout] 106 | | Ok(expected), [INFO] [stdout] 107 | | decode_position(*position, num_interesting, data.len()) [INFO] [stdout] 108 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | / assert_eq!( [INFO] [stdout] 106 | | Ok(expected), [INFO] [stdout] 107 | | decode_position(*position, num_interesting, data.len()) [INFO] [stdout] 108 | | ); [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `natural_slice` (lib test) due to 12 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "fc89324fe075f0165b192ba9f1b878acf8f3387660f508ab086660e126300578", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc89324fe075f0165b192ba9f1b878acf8f3387660f508ab086660e126300578", kill_on_drop: false }` [INFO] [stdout] fc89324fe075f0165b192ba9f1b878acf8f3387660f508ab086660e126300578