[INFO] fetching crate phd 0.1.15...
[INFO] checking phd-0.1.15 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate phd 0.1.15 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate phd 0.1.15 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] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate phd 0.1.15
[INFO] finished tweaking crates.io crate phd 0.1.15
[INFO] tweaked toml for crates.io crate phd 0.1.15 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate phd 0.1.15 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded alphanumeric-sort v1.4.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.5
[INFO] [stderr]   Downloaded shell-escape v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3e9734215f0c776c43ba2a2741329d3b7a668af9013caeb7d10782413d4b6a5a
[INFO] running `Command { std: "docker" "start" "-a" "3e9734215f0c776c43ba2a2741329d3b7a668af9013caeb7d10782413d4b6a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e9734215f0c776c43ba2a2741329d3b7a668af9013caeb7d10782413d4b6a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9734215f0c776c43ba2a2741329d3b7a668af9013caeb7d10782413d4b6a5a", kill_on_drop: false }`
[INFO] [stdout] 3e9734215f0c776c43ba2a2741329d3b7a668af9013caeb7d10782413d4b6a5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1b4e791652931bf8ed697133e5d84bb4bdab01a50289e55d94c48eec140366e6
[INFO] running `Command { std: "docker" "start" "-a" "1b4e791652931bf8ed697133e5d84bb4bdab01a50289e55d94c48eec140366e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking alphanumeric-sort v1.4.4
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking phd v0.1.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:39
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------             ^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------                   ^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:39
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------             ^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------                   ^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `phd` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use phd;
[INFO] [stdout]   |     ^^^ the item `phd` 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 `phd` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use phd;
[INFO] [stdout]   |     ^^^ the item `phd` 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: 2 warnings 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 2.68s
[INFO] running `Command { std: "docker" "inspect" "1b4e791652931bf8ed697133e5d84bb4bdab01a50289e55d94c48eec140366e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4e791652931bf8ed697133e5d84bb4bdab01a50289e55d94c48eec140366e6", kill_on_drop: false }`
[INFO] [stdout] 1b4e791652931bf8ed697133e5d84bb4bdab01a50289e55d94c48eec140366e6
[INFO] checking phd-0.1.15 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate phd 0.1.15 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate phd 0.1.15 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] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate phd 0.1.15
[INFO] finished tweaking crates.io crate phd 0.1.15
[INFO] tweaked toml for crates.io crate phd 0.1.15 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate phd 0.1.15 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9ec0c0381bbfd8be13805595a36e5c1eb4b8193fcdee8a30607f9cd2c31c75e8
[INFO] running `Command { std: "docker" "start" "-a" "9ec0c0381bbfd8be13805595a36e5c1eb4b8193fcdee8a30607f9cd2c31c75e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ec0c0381bbfd8be13805595a36e5c1eb4b8193fcdee8a30607f9cd2c31c75e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec0c0381bbfd8be13805595a36e5c1eb4b8193fcdee8a30607f9cd2c31c75e8", kill_on_drop: false }`
[INFO] [stdout] 9ec0c0381bbfd8be13805595a36e5c1eb4b8193fcdee8a30607f9cd2c31c75e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3f29c1c7d04e0d8d85221a38e643c48379b56ed143e58e4ad9dd3e48a6d4df44
[INFO] running `Command { std: "docker" "start" "-a" "3f29c1c7d04e0d8d85221a38e643c48379b56ed143e58e4ad9dd3e48a6d4df44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking alphanumeric-sort v1.4.4
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking phd v0.1.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:39
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------             ^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------                   ^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:39
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------             ^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Read` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/server.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |     io::{self, prelude::*, BufReader, Read, Write},
[INFO] [stdout]   |                ----------                   ^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `phd` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use phd;
[INFO] [stdout]   |     ^^^ the item `phd` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `phd` is imported redundantly
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use phd;
[INFO] [stdout]   |     ^^^ the item `phd` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "3f29c1c7d04e0d8d85221a38e643c48379b56ed143e58e4ad9dd3e48a6d4df44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f29c1c7d04e0d8d85221a38e643c48379b56ed143e58e4ad9dd3e48a6d4df44", kill_on_drop: false }`
[INFO] [stdout] 3f29c1c7d04e0d8d85221a38e643c48379b56ed143e58e4ad9dd3e48a6d4df44