[INFO] fetching crate tp-auto-kbbl 0.1.5...
[INFO] checking tp-auto-kbbl-0.1.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tp-auto-kbbl 0.1.5 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate tp-auto-kbbl 0.1.5 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 tp-auto-kbbl 0.1.5
[INFO] finished tweaking crates.io crate tp-auto-kbbl 0.1.5
[INFO] tweaked toml for crates.io crate tp-auto-kbbl 0.1.5 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate tp-auto-kbbl 0.1.5 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded evdev-rs v0.4.0
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded libdbus-sys v0.2.1
[INFO] [stderr]   Downloaded dbus v0.8.4
[INFO] [stderr]   Downloaded libc v0.2.78
[INFO] [stderr]   Downloaded evdev-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b71ec3d307f34dad2af9a7d845dcf021345528e15b9a66422c465fec7c874722
[INFO] running `Command { std: "docker" "start" "-a" "b71ec3d307f34dad2af9a7d845dcf021345528e15b9a66422c465fec7c874722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b71ec3d307f34dad2af9a7d845dcf021345528e15b9a66422c465fec7c874722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71ec3d307f34dad2af9a7d845dcf021345528e15b9a66422c465fec7c874722", kill_on_drop: false }`
[INFO] [stdout] b71ec3d307f34dad2af9a7d845dcf021345528e15b9a66422c465fec7c874722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fac49c11833ff2f5063a7580514e1ab75446d6b6d0e77b1c73610695009a7c3e
[INFO] running `Command { std: "docker" "start" "-a" "fac49c11833ff2f5063a7580514e1ab75446d6b6d0e77b1c73610695009a7c3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling evdev-sys v0.2.1
[INFO] [stderr]     Checking dbus v0.8.4
[INFO] [stderr]     Checking evdev-rs v0.4.0
[INFO] [stderr]     Checking tp-auto-kbbl v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dbus as dbus;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate dbus;
[INFO] [stdout]   | ------------------ the item `dbus` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dbus as dbus;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate dbus;
[INFO] [stdout]   | ------------------ the item `dbus` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_max_brightness` is never used
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait OrgFreedesktopUPowerKbdBacklight {
[INFO] [stdout]   |           -------------------------------- method in this trait
[INFO] [stdout] 8 |     fn get_max_brightness(&self) -> Result<i32, dbus::Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_max_brightness` is never used
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait OrgFreedesktopUPowerKbdBacklight {
[INFO] [stdout]   |           -------------------------------- method in this trait
[INFO] [stdout] 8 |     fn get_max_brightness(&self) -> Result<i32, dbus::Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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 6.25s
[INFO] running `Command { std: "docker" "inspect" "fac49c11833ff2f5063a7580514e1ab75446d6b6d0e77b1c73610695009a7c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac49c11833ff2f5063a7580514e1ab75446d6b6d0e77b1c73610695009a7c3e", kill_on_drop: false }`
[INFO] [stdout] fac49c11833ff2f5063a7580514e1ab75446d6b6d0e77b1c73610695009a7c3e
[INFO] checking tp-auto-kbbl-0.1.5 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tp-auto-kbbl 0.1.5 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate tp-auto-kbbl 0.1.5 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 tp-auto-kbbl 0.1.5
[INFO] finished tweaking crates.io crate tp-auto-kbbl 0.1.5
[INFO] tweaked toml for crates.io crate tp-auto-kbbl 0.1.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate tp-auto-kbbl 0.1.5 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f52679209f590081fff934f5aafc732d56891b5390035974144a5fccbc80291c
[INFO] running `Command { std: "docker" "start" "-a" "f52679209f590081fff934f5aafc732d56891b5390035974144a5fccbc80291c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52679209f590081fff934f5aafc732d56891b5390035974144a5fccbc80291c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52679209f590081fff934f5aafc732d56891b5390035974144a5fccbc80291c", kill_on_drop: false }`
[INFO] [stdout] f52679209f590081fff934f5aafc732d56891b5390035974144a5fccbc80291c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a46b41857804a9678960934d8a06f2e7e0b37f2ff89800d5f2f8969541669529
[INFO] running `Command { std: "docker" "start" "-a" "a46b41857804a9678960934d8a06f2e7e0b37f2ff89800d5f2f8969541669529", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling evdev-sys v0.2.1
[INFO] [stderr]     Checking dbus v0.8.4
[INFO] [stderr]     Checking evdev-rs v0.4.0
[INFO] [stderr]     Checking tp-auto-kbbl v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dbus as dbus;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate dbus;
[INFO] [stdout]   | ------------------ the item `dbus` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dbus` is imported redundantly
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dbus as dbus;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate dbus;
[INFO] [stdout]   | ------------------ the item `dbus` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_max_brightness` is never used
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait OrgFreedesktopUPowerKbdBacklight {
[INFO] [stdout]   |           -------------------------------- method in this trait
[INFO] [stdout] 8 |     fn get_max_brightness(&self) -> Result<i32, dbus::Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_max_brightness` is never used
[INFO] [stdout]  --> src/upower_kbd_backlight.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait OrgFreedesktopUPowerKbdBacklight {
[INFO] [stdout]   |           -------------------------------- method in this trait
[INFO] [stdout] 8 |     fn get_max_brightness(&self) -> Result<i32, dbus::Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.87s
[INFO] running `Command { std: "docker" "inspect" "a46b41857804a9678960934d8a06f2e7e0b37f2ff89800d5f2f8969541669529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46b41857804a9678960934d8a06f2e7e0b37f2ff89800d5f2f8969541669529", kill_on_drop: false }`
[INFO] [stdout] a46b41857804a9678960934d8a06f2e7e0b37f2ff89800d5f2f8969541669529