[INFO] fetching crate ipld-core 0.4.2...
[INFO] checking ipld-core-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ipld-core 0.4.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ipld-core 0.4.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ipld-core 0.4.2
[INFO] tweaked toml for crates.io crate ipld-core 0.4.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ipld-core 0.4.2 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] crate crates.io crate ipld-core 0.4.2 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-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] 1e2ca27340711ab5abad084788fe5c66e05979d523abf9c3d22db712d6ee34fb
[INFO] running `Command { std: "docker" "start" "-a" "1e2ca27340711ab5abad084788fe5c66e05979d523abf9c3d22db712d6ee34fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e2ca27340711ab5abad084788fe5c66e05979d523abf9c3d22db712d6ee34fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2ca27340711ab5abad084788fe5c66e05979d523abf9c3d22db712d6ee34fb", kill_on_drop: false }`
[INFO] [stdout] 1e2ca27340711ab5abad084788fe5c66e05979d523abf9c3d22db712d6ee34fb
[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] 32aa1a0088d8e535d37ea4ae9135bc2e4fb62903ed14d5e2559415288dd132c8
[INFO] running `Command { std: "docker" "start" "-a" "32aa1a0088d8e535d37ea4ae9135bc2e4fb62903ed14d5e2559415288dd132c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]     Checking data-encoding-macro v0.1.14
[INFO] [stderr]     Checking multibase v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking multihash v0.19.1
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking cbor4ii v0.2.14
[INFO] [stderr]     Checking serde_test v1.0.176
[INFO] [stderr]     Checking cid v0.11.1
[INFO] [stderr]     Checking ipld-core v0.4.1
[INFO] [stderr]     Checking ipld-core v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 | derive_try_from_ipld!(Bool, bool);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<i128, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 | derive_try_from_ipld!(Integer, i128);
[INFO] [stdout]     | ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<f64, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 | derive_try_from_ipld!(Float, f64);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<String, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 | derive_try_from_ipld!(String, String);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<Vec<u8>, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 184 | derive_try_from_ipld!(Bytes, Vec<u8>);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<Vec<Ipld>, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 | derive_try_from_ipld!(List, Vec<Ipld>);
[INFO] [stdout]     | -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<BTreeMap<String, Ipld>, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 | derive_try_from_ipld!(Map, BTreeMap<String, Ipld>);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<CidGeneric<64>, Infallible>
[INFO] [stdout]    --> src/convert.rs:106:28
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         Ok(value.try_into().map_err(|_| ConversionError::FromIpld {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | derive_try_from_ipld!(Link, Cid);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld` (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<bool, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | derive_try_from_ipld_option!(Bool, bool);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i128, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | derive_try_from_ipld_option!(Integer, i128);
[INFO] [stdout]     | ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (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<f64, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 | derive_try_from_ipld_option!(Float, f64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 | derive_try_from_ipld_option!(String, String);
[INFO] [stdout]     | -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (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<Vec<u8>, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 | derive_try_from_ipld_option!(Bytes, Vec<u8>);
[INFO] [stdout]     | -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Ipld>, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 | derive_try_from_ipld_option!(List, Vec<Ipld>);
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (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<BTreeMap<String, Ipld>, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 | derive_try_from_ipld_option!(Map, BTreeMap<String, Ipld>);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CidGeneric<64>, Infallible>
[INFO] [stdout]    --> src/convert.rs:82:51
[INFO] [stdout]     |
[INFO] [stdout]  82 |                     Ipld::$enum(value) => Ok(Some(value.try_into().map_err(|_| {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 | derive_try_from_ipld_option!(Link, Cid);
[INFO] [stdout]     | --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `derive_try_from_ipld_option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipld-core` (lib) due to 16 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "32aa1a0088d8e535d37ea4ae9135bc2e4fb62903ed14d5e2559415288dd132c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32aa1a0088d8e535d37ea4ae9135bc2e4fb62903ed14d5e2559415288dd132c8", kill_on_drop: false }`
[INFO] [stdout] 32aa1a0088d8e535d37ea4ae9135bc2e4fb62903ed14d5e2559415288dd132c8
