[INFO] cloning repository https://github.com/kzhang425/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kzhang425/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkzhang425%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkzhang425%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 193fac022353c499d3400ffd38d965d00d3247af
[INFO] testing kzhang425/pngme against 1.97.0-beta.6 for beta-1.98-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkzhang425%2Fpngme" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kzhang425/pngme
[INFO] finished tweaking git repo https://github.com/kzhang425/pngme
[INFO] tweaked toml for git repo https://github.com/kzhang425/pngme written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kzhang425/pngme on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kzhang425/pngme 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be
[INFO] running `Command { std: "docker" "start" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `total_len`
[INFO] [stdout]   --> src/chunk.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let total_len = bytes.len();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctype`
[INFO] [stdout]   --> src/chunk.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let ctype = ChunkType::try_from(type_bytes)?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ctype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/chunk.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let data = Vec::from(slice);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc_slice`
[INFO] [stdout]   --> src/chunk.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let crc_slice = &bytes[4..(8+len as usize)];
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_crc_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkType` is never constructed
[INFO] [stdout]  --> src/chunk_type.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ChunkType {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bit_value` is never used
[INFO] [stdout]   --> src/chunk_type.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn bit_value(input: u8, index: u32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `valid_bytes` is never used
[INFO] [stdout]   --> src/chunk_type.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn valid_bytes(input: &[u8]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/chunk_type.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl ChunkType {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 36 |     // For ease of use
[INFO] [stdout] 37 |     pub fn bytes(&self) -> [u8; 4] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn is_critical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn is_public(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn is_reserved_bit_valid(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn is_safe_to_copy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]  --> src/chunk.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Chunk {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TABLE_SIZE` is never used
[INFO] [stdout]  --> src/tables.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const TABLE_SIZE: usize = 256;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CrcType` is never used
[INFO] [stdout]  --> src/tables.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum CrcType {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LookupTable` is never used
[INFO] [stdout]   --> src/tables.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum LookupTable {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `make_table` is never used
[INFO] [stdout]   --> src/tables.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl CrcType {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 39 |     pub fn make_table(&self) -> LookupTable
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_table_u8` is never used
[INFO] [stdout]   --> src/tables.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn make_table_u8(generator: u8) -> [u8; 256] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_table_u16` is never used
[INFO] [stdout]   --> src/tables.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn make_table_u16(generator: u16) -> [u16; 256] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_table_u32` is never used
[INFO] [stdout]   --> src/tables.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn make_table_u32(generator: u32) -> [u32; 256] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no associated function or constant named `new` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]   --> src/chunk.rs:71:28
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Chunk {
[INFO] [stdout]    | ---------------- associated function or constant `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 71 |         let chunk = Chunk::new(chunk_type, data);
[INFO] [stdout]    |                            ^^^ associated function or constant not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `length` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]   --> src/chunk.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Chunk {
[INFO] [stdout]    | ---------------- method `length` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 79 |         assert_eq!(chunk.length(), 42);
[INFO] [stdout]    |                          ^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chunk_type` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]   --> src/chunk.rs:85:26
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Chunk {
[INFO] [stdout]    | ---------------- method `chunk_type` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 85 |         assert_eq!(chunk.chunk_type().to_string(), String::from("RuSt"));
[INFO] [stdout]    |                          ^^^^^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `data_as_string` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]   --> src/chunk.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Chunk {
[INFO] [stdout]    | ---------------- method `data_as_string` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 91 |         let chunk_string = chunk.data_as_string().unwrap();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `crc` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]   --> src/chunk.rs:99:26
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub struct Chunk {
[INFO] [stdout]    | ---------------- method `crc` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 99 |         assert_eq!(chunk.crc(), 2882656334);
[INFO] [stdout]    |                          ^^^-- help: remove the arguments
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `data_as_string` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]    --> src/chunk.rs:120:34
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `data_as_string` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |         let chunk_string = chunk.data_as_string().unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `length` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]    --> src/chunk.rs:123:26
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `length` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 123 |         assert_eq!(chunk.length(), 42);
[INFO] [stdout]     |                          ^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chunk_type` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]    --> src/chunk.rs:124:26
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `chunk_type` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 124 |         assert_eq!(chunk.chunk_type().to_string(), String::from("RuSt"));
[INFO] [stdout]     |                          ^^^^^^^^^^ method not found in `chunk::Chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `crc` found for struct `chunk::Chunk` in the current scope
[INFO] [stdout]    --> src/chunk.rs:126:26
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub struct Chunk {
[INFO] [stdout]     | ---------------- method `crc` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 126 |         assert_eq!(chunk.crc(), 2882656334);
[INFO] [stdout]     |                          ^^^-- help: remove the arguments
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `chunk::Chunk` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/chunk.rs:168:43
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let _chunk_string = format!("{}", chunk);
[INFO] [stdout]     |                                      --   ^^^^^ `chunk::Chunk` cannot be formatted with the default formatter
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `chunk::Chunk`
[INFO] [stdout]    --> src/chunk.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub struct Chunk {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total_len`
[INFO] [stdout]   --> src/chunk.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let total_len = bytes.len();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctype`
[INFO] [stdout]   --> src/chunk.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let ctype = ChunkType::try_from(type_bytes)?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ctype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/chunk.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let data = Vec::from(slice);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crc_slice`
[INFO] [stdout]   --> src/chunk.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let crc_slice = &bytes[4..(8+len as usize)];
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_crc_slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngme` (bin "pngme" test) due to 10 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be", kill_on_drop: false }`
[INFO] [stdout] 009f4df86b37228130b0c31f9d5c8edc7e06fbc8ace5cc13f6f01289995118be
