[INFO] cloning repository https://github.com/travbid/tag
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/travbid/tag" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftravbid%2Ftag", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftravbid%2Ftag'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d94d1076ecf684f1dd09fb549f7ea30b878436b7
[INFO] checking travbid/tag 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%2Ftravbid%2Ftag" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/travbid/tag
[INFO] finished tweaking git repo https://github.com/travbid/tag
[INFO] tweaked toml for git repo https://github.com/travbid/tag written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/travbid/tag 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/travbid/tag 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 24e478ad4034a3b3acbad9e1ca0ea4dfee687c849e9bfaac7fbf2e3205d1eba3
[INFO] running `Command { std: "docker" "start" "-a" "24e478ad4034a3b3acbad9e1ca0ea4dfee687c849e9bfaac7fbf2e3205d1eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24e478ad4034a3b3acbad9e1ca0ea4dfee687c849e9bfaac7fbf2e3205d1eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e478ad4034a3b3acbad9e1ca0ea4dfee687c849e9bfaac7fbf2e3205d1eba3", kill_on_drop: false }`
[INFO] [stdout] 24e478ad4034a3b3acbad9e1ca0ea4dfee687c849e9bfaac7fbf2e3205d1eba3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 54b505e02a33aa2d08f0d4abe045249510859f3a577cc8cb40f9106c88026a4c
[INFO] running `Command { std: "docker" "start" "-a" "54b505e02a33aa2d08f0d4abe045249510859f3a577cc8cb40f9106c88026a4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/mp4.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 172 |               let child = match name {
[INFO] [stdout]     |  _________________________-
[INFO] [stdout] 173 | |                 _ => todo!("Undhandled type in mvex: {}, {:?}", name, &data[4..8]),
[INFO] [stdout] 174 | |             };
[INFO] [stdout]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 175 |               children.push(child);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/mp4.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 172 |               let child = match name {
[INFO] [stdout]     |  _________________________-
[INFO] [stdout] 173 | |                 _ => todo!("Undhandled type in mvex: {}, {:?}", name, &data[4..8]),
[INFO] [stdout] 174 | |             };
[INFO] [stdout]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 175 |               children.push(child);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mp4.rs:166:7
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut children = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mp4.rs:167:7
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let mut ix: usize = 16;
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner_data`
[INFO] [stdout]    --> src/mp4.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let inner_data = &data[8..inner_sz as usize];
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inner_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/mp4.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let child = match name {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler_type`
[INFO] [stdout]    --> src/mp4.rs:953:35
[INFO] [stdout]     |
[INFO] [stdout] 953 |     fn parse(size: u32, data: &[u8], handler_type: [u8; 4]) -> Self {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mp4.rs:166:7
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let mut children = Vec::new();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mp4.rs:167:7
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let mut ix: usize = 16;
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner_data`
[INFO] [stdout]    --> src/mp4.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 |             let inner_data = &data[8..inner_sz as usize];
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inner_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/mp4.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let child = match name {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]     --> src/mp4.rs:1759:9
[INFO] [stdout]      |
[INFO] [stdout] 1759 |                 let version = data[data_ix + 8];
[INFO] [stdout]      |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler_type`
[INFO] [stdout]    --> src/mp4.rs:953:35
[INFO] [stdout]     |
[INFO] [stdout] 953 |     fn parse(size: u32, data: &[u8], handler_type: [u8; 4]) -> Self {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct DataBox {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaItemsBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MetaItemsBox {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaItemBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MetaItemBox {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeIndicator` is never constructed
[INFO] [stdout]   --> src/itunes.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct TypeIndicator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `horizresolution`, `vertresolution`, `frame_count`, and `depth` are never read
[INFO] [stdout]     --> src/mp4.rs:1121:2
[INFO] [stdout]      |
[INFO] [stdout] 1113 | pub struct VisualSampleEntry {
[INFO] [stdout]      |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1121 |     horizresolution: u32, // = 0x00480000; // 72 dpi
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 1122 |     vertresolution: u32,  // = 0x00480000; // 72 dpi
[INFO] [stdout]      |     ^^^^^^^^^^^^^^
[INFO] [stdout] 1123 |     _reserved2: u32,      // = 0
[INFO] [stdout] 1124 |     frame_count: u16,     // = 1
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 1125 |     pub compressor_name: [u8; 32],
[INFO] [stdout] 1126 |     depth: u16,         // 0x0018,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]   --> src/lib.rs:72:28
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let day_bytes: &[u8] = content[ix + 1..ix + 1 + 2].try_into().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<&[u8], Infallible>
[INFO] [stdout]   --> src/lib.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 let month_bytes: &[u8] = content[ix + 3..ix + 3 + 2].try_into().unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]    --> src/lib.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 let year_bytes: &[u8] = content[ix + 1..ix + 1 + 4].try_into().unwrap();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]     --> src/mp4.rs:1759:9
[INFO] [stdout]      |
[INFO] [stdout] 1759 |                 let version = data[data_ix + 8];
[INFO] [stdout]      |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tag` (lib test) due to 3 previous errors; 12 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `DataBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct DataBox {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaItemsBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MetaItemsBox {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaItemBox` is never constructed
[INFO] [stdout]   --> src/itunes.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MetaItemBox {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeIndicator` is never constructed
[INFO] [stdout]   --> src/itunes.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct TypeIndicator {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `horizresolution`, `vertresolution`, `frame_count`, and `depth` are never read
[INFO] [stdout]     --> src/mp4.rs:1121:2
[INFO] [stdout]      |
[INFO] [stdout] 1113 | pub struct VisualSampleEntry {
[INFO] [stdout]      |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1121 |     horizresolution: u32, // = 0x00480000; // 72 dpi
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 1122 |     vertresolution: u32,  // = 0x00480000; // 72 dpi
[INFO] [stdout]      |     ^^^^^^^^^^^^^^
[INFO] [stdout] 1123 |     _reserved2: u32,      // = 0
[INFO] [stdout] 1124 |     frame_count: u16,     // = 1
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout] 1125 |     pub compressor_name: [u8; 32],
[INFO] [stdout] 1126 |     depth: u16,         // 0x0018,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]   --> src/lib.rs:72:28
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 let day_bytes: &[u8] = content[ix + 1..ix + 1 + 2].try_into().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<&[u8], Infallible>
[INFO] [stdout]   --> src/lib.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 let month_bytes: &[u8] = content[ix + 3..ix + 3 + 2].try_into().unwrap();
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]    --> src/lib.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 let year_bytes: &[u8] = content[ix + 1..ix + 1 + 4].try_into().unwrap();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tag` (lib) due to 3 previous errors; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "54b505e02a33aa2d08f0d4abe045249510859f3a577cc8cb40f9106c88026a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b505e02a33aa2d08f0d4abe045249510859f3a577cc8cb40f9106c88026a4c", kill_on_drop: false }`
[INFO] [stdout] 54b505e02a33aa2d08f0d4abe045249510859f3a577cc8cb40f9106c88026a4c
