[INFO] fetching crate webt 0.0.3...
[INFO] checking webt-0.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate webt 0.0.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate webt 0.0.3 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 webt 0.0.3
[INFO] finished tweaking crates.io crate webt 0.0.3
[INFO] tweaked toml for crates.io crate webt 0.0.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate webt 0.0.3 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 56d20fbfeae966671ede3d892896e3c3d411535be3ce395f213ffd810201f87e
[INFO] running `Command { std: "docker" "start" "-a" "56d20fbfeae966671ede3d892896e3c3d411535be3ce395f213ffd810201f87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56d20fbfeae966671ede3d892896e3c3d411535be3ce395f213ffd810201f87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56d20fbfeae966671ede3d892896e3c3d411535be3ce395f213ffd810201f87e", kill_on_drop: false }`
[INFO] [stdout] 56d20fbfeae966671ede3d892896e3c3d411535be3ce395f213ffd810201f87e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 40bff12321fb94de103f566efd97e361666eabd4f12283710e4a3f3c31184788
[INFO] running `Command { std: "docker" "start" "-a" "40bff12321fb94de103f566efd97e361666eabd4f12283710e4a3f3c31184788", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking webt v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `url` is imported redundantly
[INFO] [stdout]  --> src/header/content/disposition/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use url;
[INFO] [stdout]   |     ^^^ the item `url` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `url` is imported redundantly
[INFO] [stdout]  --> src/header/content/disposition/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use url;
[INFO] [stdout]   |     ^^^ the item `url` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 3.88s
[INFO] running `Command { std: "docker" "inspect" "40bff12321fb94de103f566efd97e361666eabd4f12283710e4a3f3c31184788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40bff12321fb94de103f566efd97e361666eabd4f12283710e4a3f3c31184788", kill_on_drop: false }`
[INFO] [stdout] 40bff12321fb94de103f566efd97e361666eabd4f12283710e4a3f3c31184788
[INFO] checking webt-0.0.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate webt 0.0.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate webt 0.0.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webt 0.0.3
[INFO] finished tweaking crates.io crate webt 0.0.3
[INFO] tweaked toml for crates.io crate webt 0.0.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate webt 0.0.3 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acdce05f0061bc112a764f81d934ff135980a3acbbf23b1921a815dad2249fe0
[INFO] running `Command { std: "docker" "start" "-a" "acdce05f0061bc112a764f81d934ff135980a3acbbf23b1921a815dad2249fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acdce05f0061bc112a764f81d934ff135980a3acbbf23b1921a815dad2249fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdce05f0061bc112a764f81d934ff135980a3acbbf23b1921a815dad2249fe0", kill_on_drop: false }`
[INFO] [stdout] acdce05f0061bc112a764f81d934ff135980a3acbbf23b1921a815dad2249fe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a0a467e97f49837f32df101ce347c45ec314febde951d8211d7533b96a08e05
[INFO] running `Command { std: "docker" "start" "-a" "5a0a467e97f49837f32df101ce347c45ec314febde951d8211d7533b96a08e05", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking webt v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `url` is imported redundantly
[INFO] [stdout]  --> src/header/content/disposition/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use url;
[INFO] [stdout]   |     ^^^ the item `url` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `url` is imported redundantly
[INFO] [stdout]  --> src/header/content/disposition/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use url;
[INFO] [stdout]   |     ^^^ the item `url` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 4.06s
[INFO] running `Command { std: "docker" "inspect" "5a0a467e97f49837f32df101ce347c45ec314febde951d8211d7533b96a08e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a0a467e97f49837f32df101ce347c45ec314febde951d8211d7533b96a08e05", kill_on_drop: false }`
[INFO] [stdout] 5a0a467e97f49837f32df101ce347c45ec314febde951d8211d7533b96a08e05