[INFO] fetching crate progress_string 0.2.1...
[INFO] checking progress_string-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate progress_string 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate progress_string 0.2.1 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 progress_string 0.2.1
[INFO] finished tweaking crates.io crate progress_string 0.2.1
[INFO] tweaked toml for crates.io crate progress_string 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate progress_string 0.2.1 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]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.134
[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] b8bbb5477a8f830ff24fc25cffdc41bf8ebbd432c7bbdf1dcb946dd0311735f4
[INFO] running `Command { std: "docker" "start" "-a" "b8bbb5477a8f830ff24fc25cffdc41bf8ebbd432c7bbdf1dcb946dd0311735f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8bbb5477a8f830ff24fc25cffdc41bf8ebbd432c7bbdf1dcb946dd0311735f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bbb5477a8f830ff24fc25cffdc41bf8ebbd432c7bbdf1dcb946dd0311735f4", kill_on_drop: false }`
[INFO] [stdout] b8bbb5477a8f830ff24fc25cffdc41bf8ebbd432c7bbdf1dcb946dd0311735f4
[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] 6f5b975c7ea9cdf97888e5496af60adbb6e08aeb337148a4d9fb4c56c22c3328
[INFO] running `Command { std: "docker" "start" "-a" "6f5b975c7ea9cdf97888e5496af60adbb6e08aeb337148a4d9fb4c56c22c3328", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking progress_string v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "6f5b975c7ea9cdf97888e5496af60adbb6e08aeb337148a4d9fb4c56c22c3328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5b975c7ea9cdf97888e5496af60adbb6e08aeb337148a4d9fb4c56c22c3328", kill_on_drop: false }`
[INFO] [stdout] 6f5b975c7ea9cdf97888e5496af60adbb6e08aeb337148a4d9fb4c56c22c3328
[INFO] checking progress_string-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate progress_string 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate progress_string 0.2.1 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 progress_string 0.2.1
[INFO] finished tweaking crates.io crate progress_string 0.2.1
[INFO] tweaked toml for crates.io crate progress_string 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate progress_string 0.2.1 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] 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] a05af3fdc7bccaa9357a9d54fe25d0eabbeddd99734202f19f349df2b68435fb
[INFO] running `Command { std: "docker" "start" "-a" "a05af3fdc7bccaa9357a9d54fe25d0eabbeddd99734202f19f349df2b68435fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a05af3fdc7bccaa9357a9d54fe25d0eabbeddd99734202f19f349df2b68435fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05af3fdc7bccaa9357a9d54fe25d0eabbeddd99734202f19f349df2b68435fb", kill_on_drop: false }`
[INFO] [stdout] a05af3fdc7bccaa9357a9d54fe25d0eabbeddd99734202f19f349df2b68435fb
[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] 1624b785d222db7c0a08ba02b59edb3ade9cb79013aaa31da6d8ff678dedd742
[INFO] running `Command { std: "docker" "start" "-a" "1624b785d222db7c0a08ba02b59edb3ade9cb79013aaa31da6d8ff678dedd742", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking progress_string v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "1624b785d222db7c0a08ba02b59edb3ade9cb79013aaa31da6d8ff678dedd742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1624b785d222db7c0a08ba02b59edb3ade9cb79013aaa31da6d8ff678dedd742", kill_on_drop: false }`
[INFO] [stdout] 1624b785d222db7c0a08ba02b59edb3ade9cb79013aaa31da6d8ff678dedd742