[INFO] cloning repository https://github.com/hiqua/tiro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hiqua/tiro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiqua%2Ftiro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiqua%2Ftiro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d75e17dfa03555f1675d453d1cb4148439e9ad7
[INFO] checking hiqua/tiro against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiqua%2Ftiro" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hiqua/tiro 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 git repo https://github.com/hiqua/tiro
[INFO] finished tweaking git repo https://github.com/hiqua/tiro
[INFO] tweaked toml for git repo https://github.com/hiqua/tiro written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hiqua/tiro 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]  Downloading crates ...
[INFO] [stderr]   Downloaded notify-rust v3.6.3
[INFO] [stderr]   Downloaded dbus v0.6.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6424e47acc5a19fe7eb2ca59ec24cec346ee084d1c90ae9ac81d7eb90a50fec3
[INFO] running `Command { std: "docker" "start" "-a" "6424e47acc5a19fe7eb2ca59ec24cec346ee084d1c90ae9ac81d7eb90a50fec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6424e47acc5a19fe7eb2ca59ec24cec346ee084d1c90ae9ac81d7eb90a50fec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6424e47acc5a19fe7eb2ca59ec24cec346ee084d1c90ae9ac81d7eb90a50fec3", kill_on_drop: false }`
[INFO] [stdout] 6424e47acc5a19fe7eb2ca59ec24cec346ee084d1c90ae9ac81d7eb90a50fec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 179d981061b442cd45a4e016fd5c13b05ed6f58a941966b14d18b14892754fc9
[INFO] running `Command { std: "docker" "start" "-a" "179d981061b442cd45a4e016fd5c13b05ed6f58a941966b14d18b14892754fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]    Compiling tiro v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stdout] warning: field `global_quad` is never read
[INFO] [stdout]    --> src/config.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     RegularCategory {
[INFO] [stdout]     |     --------------- field in this variant
[INFO] [stdout] 135 |         description: &'a str,
[INFO] [stdout] 136 |         global_quad: Option<Quadrant>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]    --> src/parse.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct LifeChunk {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 128 |     pub description: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LifeChunk` has derived impls for the traits `Debug` and `Clone`, 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 `global_quad` is never read
[INFO] [stdout]    --> src/config.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     RegularCategory {
[INFO] [stdout]     |     --------------- field in this variant
[INFO] [stdout] 135 |         description: &'a str,
[INFO] [stdout] 136 |         global_quad: Option<Quadrant>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]    --> src/parse.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct LifeChunk {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 128 |     pub description: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LifeChunk` has derived impls for the traits `Debug` and `Clone`, 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 10.63s
[INFO] running `Command { std: "docker" "inspect" "179d981061b442cd45a4e016fd5c13b05ed6f58a941966b14d18b14892754fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179d981061b442cd45a4e016fd5c13b05ed6f58a941966b14d18b14892754fc9", kill_on_drop: false }`
[INFO] [stdout] 179d981061b442cd45a4e016fd5c13b05ed6f58a941966b14d18b14892754fc9
[INFO] checking hiqua/tiro against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiqua%2Ftiro" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hiqua/tiro 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 git repo https://github.com/hiqua/tiro
[INFO] finished tweaking git repo https://github.com/hiqua/tiro
[INFO] tweaked toml for git repo https://github.com/hiqua/tiro written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hiqua/tiro 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a1ddb792fb79ff31d99af0d0de64a2b9fc80e8144423d07c8815eea1d15204e9
[INFO] running `Command { std: "docker" "start" "-a" "a1ddb792fb79ff31d99af0d0de64a2b9fc80e8144423d07c8815eea1d15204e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1ddb792fb79ff31d99af0d0de64a2b9fc80e8144423d07c8815eea1d15204e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ddb792fb79ff31d99af0d0de64a2b9fc80e8144423d07c8815eea1d15204e9", kill_on_drop: false }`
[INFO] [stdout] a1ddb792fb79ff31d99af0d0de64a2b9fc80e8144423d07c8815eea1d15204e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8e0dff9e805cd21d39d60910f702df581cdfd79cf80ee6a079e192c0719798ca
[INFO] running `Command { std: "docker" "start" "-a" "8e0dff9e805cd21d39d60910f702df581cdfd79cf80ee6a079e192c0719798ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]    Compiling tiro v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stdout] warning: field `global_quad` is never read
[INFO] [stdout]    --> src/config.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     RegularCategory {
[INFO] [stdout]     |     --------------- field in this variant
[INFO] [stdout] 135 |         description: &'a str,
[INFO] [stdout] 136 |         global_quad: Option<Quadrant>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]    --> src/parse.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct LifeChunk {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 128 |     pub description: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LifeChunk` has derived impls for the traits `Debug` and `Clone`, 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 `global_quad` is never read
[INFO] [stdout]    --> src/config.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     RegularCategory {
[INFO] [stdout]     |     --------------- field in this variant
[INFO] [stdout] 135 |         description: &'a str,
[INFO] [stdout] 136 |         global_quad: Option<Quadrant>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]    --> src/parse.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub struct LifeChunk {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 128 |     pub description: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LifeChunk` has derived impls for the traits `Debug` and `Clone`, 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 11.53s
[INFO] running `Command { std: "docker" "inspect" "8e0dff9e805cd21d39d60910f702df581cdfd79cf80ee6a079e192c0719798ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0dff9e805cd21d39d60910f702df581cdfd79cf80ee6a079e192c0719798ca", kill_on_drop: false }`
[INFO] [stdout] 8e0dff9e805cd21d39d60910f702df581cdfd79cf80ee6a079e192c0719798ca