[INFO] cloning repository https://github.com/modeverv/rustbook_sec7_20190605
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/modeverv/rustbook_sec7_20190605" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2Frustbook_sec7_20190605", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2Frustbook_sec7_20190605'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c344b13209e109213cc78731be550c82a080ce1f
[INFO] checking modeverv/rustbook_sec7_20190605 against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2Frustbook_sec7_20190605" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] /workspace/builds/worker-5-tc2/source/.git/branches/: No space left on device
[INFO] checking modeverv/rustbook_sec7_20190605 against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2Frustbook_sec7_20190605" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create work tree dir '/workspace/builds/worker-5-tc2/source': No space left on device
[INFO] checking modeverv/rustbook_sec7_20190605 against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2Frustbook_sec7_20190605" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/modeverv/rustbook_sec7_20190605
[INFO] finished tweaking git repo https://github.com/modeverv/rustbook_sec7_20190605
[INFO] tweaked toml for git repo https://github.com/modeverv/rustbook_sec7_20190605 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/modeverv/rustbook_sec7_20190605 on toolchain 3c75d5844aa65b4aa19243ac44ceda49fe4e61ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/modeverv/rustbook_sec7_20190605 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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faebb10d5d58c6940b560359c3fe2d88eb574a990dd2dfb9b7d107307dd15829
[INFO] running `Command { std: "docker" "start" "-a" "faebb10d5d58c6940b560359c3fe2d88eb574a990dd2dfb9b7d107307dd15829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faebb10d5d58c6940b560359c3fe2d88eb574a990dd2dfb9b7d107307dd15829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faebb10d5d58c6940b560359c3fe2d88eb574a990dd2dfb9b7d107307dd15829", kill_on_drop: false }`
[INFO] [stdout] faebb10d5d58c6940b560359c3fe2d88eb574a990dd2dfb9b7d107307dd15829
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b1ff31f0cc2360ea3913f77335690020e6934f88f5826600d02ec454ab34588
[INFO] running `Command { std: "docker" "start" "-a" "9b1ff31f0cc2360ea3913f77335690020e6934f88f5826600d02ec454ab34588", kill_on_drop: false }`
[INFO] [stderr]     Checking rustbook_sec7_20190605 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `1` and `2` are never read
[INFO] [stdout]  --> src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Parent(usize, Child, Child);
[INFO] [stdout]   |        ------        ^^^^^  ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Parent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Child(usize);
[INFO] [stdout]    |        ----- ^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Child` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/sec7_6.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Parent(usize, Child);
[INFO] [stdout]   |        ------ ^^^^^  ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Parent` 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: field `0` is never read
[INFO] [stdout]  --> src/sec7_6.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Child(usize);
[INFO] [stdout]   |        ----- ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Child` 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: fields `1` and `2` are never read
[INFO] [stdout]  --> src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Parent(usize, Child, Child);
[INFO] [stdout]   |        ------        ^^^^^  ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Parent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Child(usize);
[INFO] [stdout]    |        ----- ^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Child` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/sec7_6.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Parent(usize, Child);
[INFO] [stdout]   |        ------ ^^^^^  ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Parent` 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: field `0` is never read
[INFO] [stdout]  --> src/sec7_6.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Child(usize);
[INFO] [stdout]   |        ----- ^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `Child` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "9b1ff31f0cc2360ea3913f77335690020e6934f88f5826600d02ec454ab34588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1ff31f0cc2360ea3913f77335690020e6934f88f5826600d02ec454ab34588", kill_on_drop: false }`
[INFO] [stdout] 9b1ff31f0cc2360ea3913f77335690020e6934f88f5826600d02ec454ab34588