[INFO] fetching crate perw 0.0.1-prerelease...
[INFO] testing perw-0.0.1-prerelease against 1.91.0 for beta-1.92-2
[INFO] extracting crate perw 0.0.1-prerelease into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate perw 0.0.1-prerelease
[INFO] finished tweaking crates.io crate perw 0.0.1-prerelease
[INFO] tweaked toml for crates.io crate perw 0.0.1-prerelease written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate perw 0.0.1-prerelease on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate perw 0.0.1-prerelease 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu v0.7.4
[INFO] [stderr]   Downloaded snafu-derive v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86d006073918f3e17c19ada41cf9a77233b657b3e916f558f42f9c8ca350e307
[INFO] running `Command { std: "docker" "start" "-a" "86d006073918f3e17c19ada41cf9a77233b657b3e916f558f42f9c8ca350e307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86d006073918f3e17c19ada41cf9a77233b657b3e916f558f42f9c8ca350e307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d006073918f3e17c19ada41cf9a77233b657b3e916f558f42f9c8ca350e307", kill_on_drop: false }`
[INFO] [stdout] 86d006073918f3e17c19ada41cf9a77233b657b3e916f558f42f9c8ca350e307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6c6b04a026db4c5e5069afef7250e75be1e9bf8dc4b018ca36b1b70df42474a
[INFO] running `Command { std: "docker" "start" "-a" "b6c6b04a026db4c5e5069afef7250e75be1e9bf8dc4b018ca36b1b70df42474a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling snafu-derive v0.7.4
[INFO] [stderr]    Compiling snafu v0.7.4
[INFO] [stderr]    Compiling perw v0.0.1-prerelease (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ImageDosHeader` is never constructed
[INFO] [stdout]  --> src/pe/dos.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ImageDosHeader {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `MAGIC_CONSTANT` is never used
[INFO] [stdout]   --> src/pe/dos.rs:50:15
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl ImageDosHeader {
[INFO] [stdout]    | ------------------- associated constant in this implementation
[INFO] [stdout] 50 |     pub const MAGIC_CONSTANT : u16 = 0x5A4D ;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `Command { std: "docker" "inspect" "b6c6b04a026db4c5e5069afef7250e75be1e9bf8dc4b018ca36b1b70df42474a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c6b04a026db4c5e5069afef7250e75be1e9bf8dc4b018ca36b1b70df42474a", kill_on_drop: false }`
[INFO] [stdout] b6c6b04a026db4c5e5069afef7250e75be1e9bf8dc4b018ca36b1b70df42474a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a324386e84fea8d32214e1e3c096825fe1779124097bbf04c10f6e012c29e94
[INFO] running `Command { std: "docker" "start" "-a" "3a324386e84fea8d32214e1e3c096825fe1779124097bbf04c10f6e012c29e94", kill_on_drop: false }`
[INFO] [stdout] warning: struct `ImageDosHeader` is never constructed
[INFO] [stdout]  --> src/pe/dos.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ImageDosHeader {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `MAGIC_CONSTANT` is never used
[INFO] [stdout]   --> src/pe/dos.rs:50:15
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl ImageDosHeader {
[INFO] [stdout]    | ------------------- associated constant in this implementation
[INFO] [stdout] 50 |     pub const MAGIC_CONSTANT : u16 = 0x5A4D ;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling perw v0.0.1-prerelease (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `Vec<u8>: io::Writer` is not satisfied
[INFO] [stdout]    --> src/pe/dos.rs:139:31
[INFO] [stdout]     |
[INFO] [stdout] 139 |         expected_dos.write_to(&mut dos_bytes);
[INFO] [stdout]     |                      -------- ^^^^^^^^^^^^^^ the trait `io::Writer` is not implemented for `Vec<u8>`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `io::Writer`:
[INFO] [stdout]               stream::PEStream<&mut [u8]>
[INFO] [stdout]               stream::PEStream<Vec<u8>>
[INFO] [stdout] note: required by a bound in `io::WriteData::write_to`
[INFO] [stdout]    --> src/io/mod.rs:43:42
[INFO] [stdout]     |
[INFO] [stdout]  43 |     fn write_to(&self, writer: &mut impl Writer) -> Result<()>;
[INFO] [stdout]     |                                          ^^^^^^ required by this bound in `WriteData::write_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perw` (lib test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3a324386e84fea8d32214e1e3c096825fe1779124097bbf04c10f6e012c29e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a324386e84fea8d32214e1e3c096825fe1779124097bbf04c10f6e012c29e94", kill_on_drop: false }`
[INFO] [stdout] 3a324386e84fea8d32214e1e3c096825fe1779124097bbf04c10f6e012c29e94
