[INFO] fetching crate iosonism 0.1.0...
[INFO] checking iosonism-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate iosonism 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate iosonism 0.1.0
[INFO] finished tweaking crates.io crate iosonism 0.1.0
[INFO] tweaked toml for crates.io crate iosonism 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iosonism 0.1.0 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] 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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[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] a306edea690bcda08c4737fa9bd1797530fcc6e799a2d04fd1c1056ae866fc66
[INFO] running `Command { std: "docker" "start" "-a" "a306edea690bcda08c4737fa9bd1797530fcc6e799a2d04fd1c1056ae866fc66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a306edea690bcda08c4737fa9bd1797530fcc6e799a2d04fd1c1056ae866fc66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a306edea690bcda08c4737fa9bd1797530fcc6e799a2d04fd1c1056ae866fc66", kill_on_drop: false }`
[INFO] [stdout] a306edea690bcda08c4737fa9bd1797530fcc6e799a2d04fd1c1056ae866fc66
[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] 9a34d59146eba8bc799a41d4e5aeb6be0e4a2fc845e557d9e23b74e90fb44061
[INFO] running `Command { std: "docker" "start" "-a" "9a34d59146eba8bc799a41d4e5aeb6be0e4a2fc845e557d9e23b74e90fb44061", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking iosonism v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[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<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:227:9
[INFO] [stdout]     |
[INFO] [stdout] 227 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |         reader.read_quoted_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:340:9
[INFO] [stdout]     |
[INFO] [stdout] 340 |         reader.read_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |         reader.read_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |         reader.read_string::<ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:373:9
[INFO] [stdout]     |
[INFO] [stdout] 373 |         reader.read_integer::<i32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:384:9
[INFO] [stdout]     |
[INFO] [stdout] 384 |         reader.read_integer::<i32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |         reader.read_integer::<i32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:435:9
[INFO] [stdout]     |
[INFO] [stdout] 435 |         reader.read_integer::<i32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         reader.read_float::<f32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         reader.read_float::<f32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 468 |         reader.read_float::<f32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:507:9
[INFO] [stdout]     |
[INFO] [stdout] 507 |         reader.read_float::<f32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f32, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         reader.read_float::<f32, ErrorPanic>().unwrap(),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, ErrorPanic>
[INFO] [stdout]    --> tests/strcursor.rs:563:16
[INFO] [stdout]     |
[INFO] [stdout] 563 |     assert_eq!(reader.read_bool::<ErrorPanic>().unwrap(), true);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iosonism` (test "strcursor") due to 24 previous errors
[INFO] running `Command { std: "docker" "inspect" "9a34d59146eba8bc799a41d4e5aeb6be0e4a2fc845e557d9e23b74e90fb44061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a34d59146eba8bc799a41d4e5aeb6be0e4a2fc845e557d9e23b74e90fb44061", kill_on_drop: false }`
[INFO] [stdout] 9a34d59146eba8bc799a41d4e5aeb6be0e4a2fc845e557d9e23b74e90fb44061
