[INFO] fetching crate cepack 0.1.0...
[INFO] checking cepack-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cepack 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cepack 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cepack 0.1.0
[INFO] finished tweaking crates.io crate cepack 0.1.0
[INFO] tweaked toml for crates.io crate cepack 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate cepack 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_pod v0.1.1
[INFO] [stderr]   Downloaded dataview v0.1.2
[INFO] [stderr]   Downloaded no-std-compat v0.4.1
[INFO] [stderr]   Downloaded pelite-macros v0.1.1
[INFO] [stderr]   Downloaded pelite v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4372df88f16794f23add683bf93dcfdbd3afeb91e0ebc82e373f1a5b1011aba0
[INFO] running `Command { std: "docker" "start" "-a" "4372df88f16794f23add683bf93dcfdbd3afeb91e0ebc82e373f1a5b1011aba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4372df88f16794f23add683bf93dcfdbd3afeb91e0ebc82e373f1a5b1011aba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4372df88f16794f23add683bf93dcfdbd3afeb91e0ebc82e373f1a5b1011aba0", kill_on_drop: false }`
[INFO] [stdout] 4372df88f16794f23add683bf93dcfdbd3afeb91e0ebc82e373f1a5b1011aba0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b1d2b5d7d4a8e4b38bf8987d4ee6491ff2b8b53bfe9e979fe1512ed0e89555
[INFO] running `Command { std: "docker" "start" "-a" "36b1d2b5d7d4a8e4b38bf8987d4ee6491ff2b8b53bfe9e979fe1512ed0e89555", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling derive_pod v0.1.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking no-std-compat v0.4.1
[INFO] [stderr]    Compiling pelite-macros v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking dataview v0.1.2
[INFO] [stderr]     Checking pelite v0.9.0
[INFO] [stderr]     Checking cepack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `folder` is never read
[INFO] [stdout]  --> src/cearchive.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CEArchiveFile {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout] 9 |     pub folder: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CEArchiveFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filecount` is never read
[INFO] [stdout]   --> src/cearchive.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CEArchive {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub filecount: u32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CEArchive` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `folder` is never read
[INFO] [stdout]  --> src/cearchive.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CEArchiveFile {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout] 9 |     pub folder: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CEArchiveFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filecount` is never read
[INFO] [stdout]   --> src/cearchive.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CEArchive {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub filecount: u32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CEArchive` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "36b1d2b5d7d4a8e4b38bf8987d4ee6491ff2b8b53bfe9e979fe1512ed0e89555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b1d2b5d7d4a8e4b38bf8987d4ee6491ff2b8b53bfe9e979fe1512ed0e89555", kill_on_drop: false }`
[INFO] [stdout] 36b1d2b5d7d4a8e4b38bf8987d4ee6491ff2b8b53bfe9e979fe1512ed0e89555
[INFO] checking cepack-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate cepack 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate cepack 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cepack 0.1.0
[INFO] finished tweaking crates.io crate cepack 0.1.0
[INFO] tweaked toml for crates.io crate cepack 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate cepack 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7bb8317a64bcbf8bc2848cc17f8b9e86144d732502271f76bc6b1ce3f86b22a
[INFO] running `Command { std: "docker" "start" "-a" "f7bb8317a64bcbf8bc2848cc17f8b9e86144d732502271f76bc6b1ce3f86b22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7bb8317a64bcbf8bc2848cc17f8b9e86144d732502271f76bc6b1ce3f86b22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7bb8317a64bcbf8bc2848cc17f8b9e86144d732502271f76bc6b1ce3f86b22a", kill_on_drop: false }`
[INFO] [stdout] f7bb8317a64bcbf8bc2848cc17f8b9e86144d732502271f76bc6b1ce3f86b22a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e8bd901cd2b73d24fb13a0832a0858333a1c731df386a1663a0173feaaa39a8
[INFO] running `Command { std: "docker" "start" "-a" "3e8bd901cd2b73d24fb13a0832a0858333a1c731df386a1663a0173feaaa39a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling derive_pod v0.1.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking no-std-compat v0.4.1
[INFO] [stderr]    Compiling pelite-macros v0.1.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking dataview v0.1.2
[INFO] [stderr]     Checking pelite v0.9.0
[INFO] [stderr]     Checking cepack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `folder` is never read
[INFO] [stdout]  --> src/cearchive.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CEArchiveFile {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout] 9 |     pub folder: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CEArchiveFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filecount` is never read
[INFO] [stdout]   --> src/cearchive.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CEArchive {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub filecount: u32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CEArchive` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `folder` is never read
[INFO] [stdout]  --> src/cearchive.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct CEArchiveFile {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 8 |     pub name: String,
[INFO] [stdout] 9 |     pub folder: String,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CEArchiveFile` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filecount` is never read
[INFO] [stdout]   --> src/cearchive.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CEArchive {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 15 |     pub filecount: u32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CEArchive` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "3e8bd901cd2b73d24fb13a0832a0858333a1c731df386a1663a0173feaaa39a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e8bd901cd2b73d24fb13a0832a0858333a1c731df386a1663a0173feaaa39a8", kill_on_drop: false }`
[INFO] [stdout] 3e8bd901cd2b73d24fb13a0832a0858333a1c731df386a1663a0173feaaa39a8