[INFO] fetching crate rstk 0.3.0...
[INFO] checking rstk-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rstk 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rstk 0.3.0 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 rstk 0.3.0
[INFO] finished tweaking crates.io crate rstk 0.3.0
[INFO] tweaked toml for crates.io crate rstk 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate rstk 0.3.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] dd2d5efa3175ad3ad3832fba21f2ab68bd6d9273b29c3472eadc47cb0a6cce80
[INFO] running `Command { std: "docker" "start" "-a" "dd2d5efa3175ad3ad3832fba21f2ab68bd6d9273b29c3472eadc47cb0a6cce80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd2d5efa3175ad3ad3832fba21f2ab68bd6d9273b29c3472eadc47cb0a6cce80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd2d5efa3175ad3ad3832fba21f2ab68bd6d9273b29c3472eadc47cb0a6cce80", kill_on_drop: false }`
[INFO] [stdout] dd2d5efa3175ad3ad3832fba21f2ab68bd6d9273b29c3472eadc47cb0a6cce80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c6ffe2123b3ac66a7da1b7de0d3680505b0167ab95ca3ef4c30c29fc43870d7f
[INFO] running `Command { std: "docker" "start" "-a" "c6ffe2123b3ac66a7da1b7de0d3680505b0167ab95ca3ef4c30c29fc43870d7f", kill_on_drop: false }`
[INFO] [stderr]     Checking rstk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]    --> src/wish.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct TkError {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 101 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]    --> src/wish.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct TkError {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 101 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "c6ffe2123b3ac66a7da1b7de0d3680505b0167ab95ca3ef4c30c29fc43870d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ffe2123b3ac66a7da1b7de0d3680505b0167ab95ca3ef4c30c29fc43870d7f", kill_on_drop: false }`
[INFO] [stdout] c6ffe2123b3ac66a7da1b7de0d3680505b0167ab95ca3ef4c30c29fc43870d7f
[INFO] checking rstk-0.3.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate rstk 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate rstk 0.3.0 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 rstk 0.3.0
[INFO] finished tweaking crates.io crate rstk 0.3.0
[INFO] tweaked toml for crates.io crate rstk 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate rstk 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 414d146ee61e614322a696738b5e8827e2fdf41e6991e493eea6bceeda9ac91c
[INFO] running `Command { std: "docker" "start" "-a" "414d146ee61e614322a696738b5e8827e2fdf41e6991e493eea6bceeda9ac91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "414d146ee61e614322a696738b5e8827e2fdf41e6991e493eea6bceeda9ac91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414d146ee61e614322a696738b5e8827e2fdf41e6991e493eea6bceeda9ac91c", kill_on_drop: false }`
[INFO] [stdout] 414d146ee61e614322a696738b5e8827e2fdf41e6991e493eea6bceeda9ac91c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 61023954ff67c28a38a785b2705a65f0c5a3f2fb5b7713d8a4cee4014256e5a1
[INFO] running `Command { std: "docker" "start" "-a" "61023954ff67c28a38a785b2705a65f0c5a3f2fb5b7713d8a4cee4014256e5a1", kill_on_drop: false }`
[INFO] [stderr]     Checking rstk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]    --> src/wish.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct TkError {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 101 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]    --> src/wish.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct TkError {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 101 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "61023954ff67c28a38a785b2705a65f0c5a3f2fb5b7713d8a4cee4014256e5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61023954ff67c28a38a785b2705a65f0c5a3f2fb5b7713d8a4cee4014256e5a1", kill_on_drop: false }`
[INFO] [stdout] 61023954ff67c28a38a785b2705a65f0c5a3f2fb5b7713d8a4cee4014256e5a1